Interviews with plenary lecturers of the XIII SBPMat Meeting: Roberto Dovesi (Universita’ degli Studi di Torino, Italy).

The Italian chemist Roberto Dovesi, full professor at Universita´degli Studi di Torino, where he heads the Theorical Chemistry Group, will be one of the plenary speakers in our XIII SBPMat Meeting. Dovesi will talk about theoretical calculations applied to materials.

His scientific activity focuses on the use of a quantum-mechanical approach to solid state chemistry, physics, materials science and surface science. In particular, his primary activityis the implementation of ab initio computer programs for the study of the electronic structure of periodic compounds.

Dovesi is one of the creators of CRYSTAL, a computational tool for the characterization of crystalline solids.The CRYSTAL project started in 1976, and involved (and still involves) a large number of collaborators from many countries. The first version of the software was released in 1988, and then new versions have followed. CRYSTAL is today a licenced program used in more than 350 laboratories in the world. In the last five years, more than 30 PhD students and post-docs from European countries visited the Torino Theoretical Chemistry Group in order to be introduced to the formal aspects and use of the CRYSTAL code.

Every year Dovesi’s group organizes international schools on the quantum-mechanical simulation of solids. One of them was held in 2012 in Brasil. This year four such schools are organized in Perth (Australia), Jahnsi (India), Regensburg (Germany), London (UK) (see at the EVENTS entry in the CRYSTAL web site) .

Roberto Dovesi is the author of more than 250 papers published in international journals and of one book (with Cesare Pisani and Carla Roetti) published by Springer in 1989. Since 1985, he received more than 7.000 citations with h-index=51.

Read our interview with the lecturer.

SBPMat newsletter: – Share with us, very briefly, the story of the developement of CRYSTAL since the first idea up to commercialization.

Roberto Dovesi: – In 1970 Cesare Pisani, Carla Roetti and myself decided to explore the possibilities of simulation as a complement to experiment in the study of crystalline solids.

We started to develop small codes on the basis of the analogy with the codes that were appearing in the litterature as produced mainly by USA universities. In 1976 we started to implement an ab initio quantum mechanical code for solids, using tools and methodologies that were common to the Theoretical Chemistry community (as opposed to the Solid State community). It took 4 years of very hard study and coding to have a first, preliminary result, the band structure of graphite, and its total energy. Eight years later, in 1988, CRYSTAL was ripe enough to be publicly distributed by QCPE (Quantum Chemistry Program Exchange). CRYSTAL has been the first periodic code distributed publicly to the scientific community.

In the meantime many new collaborators where joining the group from many countries (I want to mention at least one of them, Vic Saunders, fron the Daresbury Laboratory, U.K). In the following years many new public releases have been distributed (1992, 95, 98, 2003, 2006, 2009, 2014), each one corresponding to generalizations and extensions of the code in many directions. The last release (CRY14) has been distributed in more than 200 laboratories in less than one year.

The Raman spectrum of Pyrope.

SBPMat newsletter: – Please explain to our broad audience what can be done with CRYSTAL in the field of Materials Science and Engineering.

Roberto Dovesi:- CRYSTAL can be used for studying many ground state properties of systems periodic in 1 (nanotubes, polymers), 2 (monolayers, slabs) and 3 (crystals) dimensions; solid solutions, molecules and clusters can be investigated too. Hartree-Fock and DFT of various flavours are the available hamiltonians. A very large set of properties can be studied, the list can be found at www.crystal.unito.it. A short list includes the elastic, piezo-electric, photo-elastic, dielectric, polarizability and hyperpolarizability tensors, the IR and RAMAN spectra, the electron and phonon band structure.

SBPMat newsletter: – Please choose some of your main publications (about 3 or 4) to share them with our public.

Roberto Dovesi: –

1. Raman Spectrum of Pyrope Garnet. A Quantum Mechanical Simulation of Frequencies, Intensities, and Isotope Shifts. Lorenzo Maschio, Bernard Kirtman, Simone Salustro, Claudio M. Zicovich-Wilson, Roberto Orlando and Roberto Dovesi. J. Phys. Chem. A, 2013, 117 (45), pp 11464–11471.

2. Structural, electronic and energetic properties of giant icosahedral fullerenes up to C6000: insights from an ab initiohybrid DFT study. Yves Noel, Marco De La Pierre, Claudio Marcelo Zicovich Wilson, Roberto Orlando, Roberto Dovesi. Phys Chem Chem Phys. 2014, Jun 11; 16(26):13390-401.

3. Symmetry and random sampling of symmetry independent configurations for the simulation of disordered solids. Philippe D’Arco, Sami Mustapha, Matteo Ferrabone, Yves Noël, Marco De La Pierre, Roberto Dovesi. J Phys Condens Matter. 2013 Sep 4; 25(35): 355401.

SBPMat newsletter: – Tell us what do you intend to broach in your plenary talk at SBPMat meeting.

Roberto Dovesi: – I will try to show that nowadays quantum mechanical simulation can be an useful complementary tool to experiment. The decreasing cost of the harware, and the availability of powerful, accurate and general computer codes permits to perform simulations also to non experts. I will show that the number of available properties makes simulation very interesting.

Featured paper: Graphene sheets engraved with helium ions.

 The scientific paper by members of the Brazilian community on Materials research featured this month is:

Archanjo, B.S.; Fragneaud, B.; Cancado, L.G.; Winston, D.; Miao, F.; Achete, C.A.; Medeiros-Ribeiro, G. Graphene nanoribbon superlattices fabricated via He ion lithography. Appl. Phys. Lett. 104, 193114 (2014); http://dx.doi.org/10.1063/1.4878407.

Graphene sheets engraved with helium ions

In a study led by researchers from Brazil and recently published in Applied Physics Letters (APL), scientists have engraved, on graphene sheets, nanosized periodic patterns, using a new method for that application, the helium hion beam lithography.

The team of scientists used a helium ion microscope (HIM) in order to bombard graphene with these ions and, thus, engrave parallel lines of length 1mm and width of only 5 nm, defining, among them, 20 nm-width ribbons (nanoribbons).

In addition to being quick and simple, the method has proven to be very accurate: it generated point defects smaller than other similar techniques and significantly preserved the atomic structure of the nanoribbons.

The new method extends the application possibilities of graphene, which, it is worth highlighting, is a flat material (it is only one atom tall) composed of densely packed carbon atoms, and which stands out because it can be used in nanoscale and for its high mechanical resistance, great electricity and heat conduction, transparency, and flexibility, among other properties.

“Direct writing in graphene using the focused beams of helium ions allows the fast manufacturing of different devices”, says Braulio Archanjo, researcher at the Brazilian National Institute of Metrology, Quality, and Technology (Inmetro) and lead author of the APL’s article. As an example, Archanjo mentions the possibility of manufacturing, in a near future, in pure graphene, the so-called “PN junctions”, essencial structures in semiconductor devices such as diodes and transistors, widely used in the production of electronics. Today, these structures are basically made in silicon.

AFM topographic image (3D) of graphene surface on SiO2.

The story of the work

In the context of studies on graphene metrology performed in the recent years at Inmetro, reports Archanjo, emerged the idea of manufacturing, in a controlled manner, periodic “defect” patterns, such as the parallel lines of the APL work. In 2012, an Inmetro team, in collaboration with researchers of the Federal University of Minas Gerais (UFMG), published a paper on periodic patterns engraved on graphene using a beam of gallium ions through FIB (focused ion beam) equipment.

Later, in a meeting of Archanjo with professors Carlos Achete, from the Federal University of Rio de Janeiro (UFRJ) and from Inmetro, and Gilberto Medeiros, from UFMG and from the research and development laboratory of Hewlett-Packard (HP Labs), a second work was planned, which would use, instead of FIB equipment, a HIM equipment, which resolution is up to ten times higher, but which is still not available in Brazilian territory.

So Archanjo spent three weeks in Silicon Valley, in the United States, using the HIM of HP Labs to make lithography in graphene samples manufactured at Inmetro. “We brought together the expertise we have here regarding graphene defects with the expertise of the HP Labs researchers regarding using a microscope of focused beams of helium ions”, summarizes the Inmetro researcher.

When he went back to Brazil with several graphene samples with engraved periodic patterns, the team began, at Inmetro, the study of such samples through atomic force microscopy and Raman spectroscopy. “This stage of the work was performed together with professors Benjamin Fragneaud, from the Federal University of Juiz de Fora (UFJF) and Luiz Gustavo Cançado, from UFMG”, tells Archanjo.

HIM: soon in Brazil

In the first semester of 2015, announces Archanjo, Brazil should have its first helium ion microscope. “The experience we gained performing the study at HP Labs will allow us to install it and use it”, says the researcher. The equipment will be available at Inmetro.

Made in Brazil: incorporating silver nanostructures into oral hygiene products eliminates 99% of bacteria and fungi.

A research on the incorporation of silver with antibacterial properties on surfaces, conducted by the  Center for the Development of Functional Materials (CDMF in Portuguese), one of the Research, Innovation and Dissemination Centers of the São Paulo Research Foundation (FAPESP) is being applied to toothbrushes.

OralGift, a company with 12 years of experience in the oral hygiene business, in association with CDMF and NANOX Tecnologia, released a new line of products coated with the NanoxClean technology. Produced with silver nanostructures incorporated into the raw materials, the surface of the product is protected against microorganisms and bacteria.

The researchers responsible for this work explain that damp environments, mainly bathrooms, display a large amount of bacteria and fungi. When toothbrushes are left exposed, there is a high possibility of contamination.

The technology incorporating silver nanostructures eliminates 99% of the bacteria and fungi accumulated on  toothbrush and the cases used to keep them, as well as tongue cleaners.

The CDMF Director, Professor Eldon Longo, clarifies the importance of the association between the research developed at the university and the industrial-scale innovation made in companies:  “Nanox is a first world company in innovation, with high technology. It develops products based on nanotechnology, mainly to healthcare. This innovation, released on the market, is another example of creativity in transforming knowledge into wealth for the country”.

 About CDMF

The Center for the Development of Functional Materials (CDMF) is one of the Research, Innovation and Dissemination Centers (CEPID in Portuguese) supported by FAPESP (São Paulo Research Foundation), and the National Institute of Science and Technology of Materials in Nanotechnology,  and counts with the collaboration of São Paulo State University (Unesp), Federal University of São Carlos (UFSCar), University of São Paulo, (USP) and the Nuclear and Energy Research Institute (Ipen).

Facebook profile: https://www.facebook.com/INCTMNCMDMC

NANOX

NANOX Tecnologia is located in São Carlos city (Brazil), and was created from a project developed by three young UFSCar students, which they improved during their graduate studies in the Chemistry Institute of Unesp at the Araraquara campus.

The company was among the first ones engaged in the field of nanotechnology in Brazil, and is currently considered the largest in its business in the country, being the first national company to export nanotechnology.

(From Fernanda Vilela – CDMF)

Interviews with plenary lecturers of the XIII SBPMat Meeting: Jean-Marie Dubois (Institut Jean-Lamour, França).

The author, Jean-Marie Dubois (left) and Nobel Prize winner Dan Shechtman (right) celebrating Shechtman’s 70th birthday two years before he was awarded his Nobel Prize. Observe that both carry the same tie, which is decorated by a Penrose tiling, a prototypical example of aperiodicity in the art of drawing and painting.

The French scientist Jean-Marie Dubois, PhD in Physics from National Polytechnic Institute of Lorraine (France) is a Distinguished Director of Research at the French National Center for Scientific Research, CNRS (France), where he chairs a committee dedicated to materials chemistry, nanomaterials and processing.  He is the former director of Institut Jean Lamour in Nancy (France), a major research institute in field of materials.

His curriculum shows an international scientific trajectory. Dubois holds Honorary Doctorates (Dr Hon. Causa) from Iowa State University (USA) and Federal University of Paraïba (Brazil), is a former “overseas fellow” of Churchill College at University of Cambridge (U.K.) and a permanent visiting professor at Dalian University of Technology (China). He was recently elected as Honorary Member of Jožef Stefan Institute in Ljubljana (Slovenia). He is a member of Lorraine Academy of Sciences (France).

He is the author of more than 250 scientific articles in refereed journals, 14 international patents, and 7 books. His papers were cited more than 5400 times (H index = 39).

Read our interview with the lecturer.

SBPMat newsletter: – Under your viewpoint, which are your main contributions to the field of Materials Science and Engineering? And your scientific/technological contributions with more social impact (patents, products)?

A part of 20x20x30 cm, used by a French car producer, made of a polymer reinforced by a quasicrystalline powder. It that can be produced by additive machining with no restriction regarding complexity of its shape.

Jean-Marie Dubois: – My first contribution that was aimed at a social impact was the discovery of Al-based metallic glasses, which could be good candidates for light-weight alloys useful for the aeronautic industry. I patented them in 1982, listing a number of favorable examples, and as is the rule for a patent, also counter examples. One such composition was in fact a stable quasicrystal, which was unraveled in Japan few years later. Based on this discovery, I was the first to patent few application niches of quasicrystals that are Al-based intermetallics showing no periodic order as do conventional crystals. The discovery of quasicrystals dates back to 1982, but was published in literature only in 1984, whereas my first patent on these materials was filed in 1988. From that on, I dedicated quite some efforts to discover, patent, and produce new research, about different areas of the physics of quasicrystals including thermal conductivity, adhesion and friction, corrosion resistance, etc. My leadership in this area of materials science is recognized by the international community through the “International Jean-Marie Dubois Award” that is offered every three year “to recognize important, sustained research on any aspect of quasicrystals within the 10-year period preceding the award”. Altogether, I own 14 international patents, with more than 35 extensions. I was responsaible for few tens of collaboration contracts with the industry, including a good dozen of contracts financed by the European Commissions with on average half a dozen of industrial partners and the same number of academic partners. The last one was a so-called Network of Excellence that started the field of Complex Metallic Alloys in Europe, with 20 partner institutions from 12 European countries and some 400 scientists on board.

SBPMat newsletter: –  Please choose some of your main publications (about 3 or 4) to share them with our public.

Jean-Marie Dubois:

1) Useful Quasicrystals; J.M. DUBOIS, World Scientific, Singapour (2005), 470 pages.

2) Complex Metallic Alloys, Fundamentals and Applications; Eds. J.M. DUBOIS and E. BELIN-FERRÉ, Wiley (Weinheim, 2010), 409 p.

3) Topological instabilities in metallic lattices and glass formation; J.M. DUBOIS, J. Less Common Metals 145 (1988), 309-326.

4) The applied physics of quasicrystals; J.M. DUBOIS, Scripta Physica, T49 (1993) 17-23.

5) Properties- and applications of complex metallic alloys, J.M. DUBOIS, Chem. Soc. Rev., 41 (2012) 6760-6777.

SBPMat newsletter: – Please give us a short teaser about your plenary talk at SBPMat meeting. What do you intend to broach?

Jean-Marie Dubois: – My talk will be a laudation to the discoverer of quasicrystals who was awarded a Nobel Prize in Chemistry in 2011 for his discovery that forced the scientific community to revise its understanding of ordered condensed matter. Members of the MRS Brazil are used to know what is a crystal, a periodically ordered solid. I wish to introduce them to another type of order in solid, that is not periodic, and leads to unprecedented properties. Alloys that exhibit such a type of order are specific and I call them push-pull alloys. Then, I wish to show that this type of order is not restricted to metallic alloys, but may also be encountered in soft matter like polymers, oxides, artificial nanostructures, and even artistic drawings from ancient Islamic tilings. The talk will therefore be a review for the non-expert in quasicrystals and complex intermetallics

SBPMat newsletter. English edition. Year 1, issue 6.

Brazilian Materials Research Society (SBPMat) newsletter

News update from Brazil for the Materials community

 

English edition. Year 1, issue 6. 
Greetings, .

 

XIII SBPMat meeting (João Pessoa, September 28th to October 2nd)

–  In this edition, our annual meeting sets a record in the amount of submissions, with over 2,100 received abstracts.

– The authors will be notified about their acceptance/necessary changes/rejection up to July 15.

– From July 15 to August 08 the authors of accepted abstracts may submit extended abstracts to compete for the Bernhard Gross Award.

Early registration deadline: August 15.

More information.

– 23 companies and institutions already chose to attend our meeting as exhibitors. If your organization also wishes to be a part of the event, contact us at rose@metallum.com.br.

Featured paper with Brazilian participation

Materials engineers joined to chemists and food engineers in order to develop antimicrobial films to wrap food. Based on pectin (a natural polymer), papaya puree and a nanoemulsion made with a component found in cinnamon, the films are edible. The team also studied how the “ingredients” and the (nano) size of the emulsion particles changed the mechanical and antimicrobial properties of the films. The study, led by research groups from Embrapa (the Brazilian Agricultural Research Corporation) and the Federal University of Viçosa, entirely conducted in Brazil, was published by the journal Food Hydrocolloids. More.

SBPMat’s community people

On the occasion of his induction ceremony as a member of the advisory board of the World Academy of Ceramics, we interviewed Professor Victor Carlos Pandolfelli (DEMa – UFSCar). He told us how he built his professional career upon three pillars, teaching, research and industrial partnerships, guided by a principle of “use-oriented basic research“. Pandolfelli talked about the creation of new, future materials in laboratories using computers with high processing speed and 3D printers. To conclude, he gave suggestions for readers in the beginning of their careers, who are facing a world of intense competition, and said: do not confuse Facebook with the real world. Read our interview.

We also interviewed Reginaldo Muccillo, researcher at the Energy and Nuclear Researches Institute (IPEN) who was recently sworn in as a member of the World Academy of Ceramics. He told us a little about his history and contributions to the field, as well as the challenges to the science of ceramic materials. Read our interview.

SBPMat news

SBPMat attended the European Materials Research Society (E-MRS) Spring Meeting, held in France in the end of May. Our president, Professor Roberto Faria, was one of the event chairs, and members of the SBPMat office organized a symposium on organic electronics, which counted with a substantial Brazilian participation. Read more.

Reading recommendations

Science journalism stories based on papers published in journals with high impact factor.

– Applying an electric field, it is possible to change the structure and electronic properties of the trilayer graphene (Nature Materials). Read it.

– Breakthroughs in our way to comprehend the superconductivity of some materials through magnetic interactions (Nature Communications). Read it.

– TGCN: recently born member of the graphene family has the potential to be used in transistors (Angewandte Chemie). Read it.

– Scientists produce plasmonic nanoparticles aggregates capable of killing cancer cells (Advanced Functional Materials). Read it.
Materials news from the Brazilian National Institutes of Science and Technology (INCTs).

– Webpage of the Institute of Physics (IOP) highlights recent Brazilian investments in the field of Materials and cutting-edge researches developed in the country. Read it.
On the market, or almost there.

– 1km superconductive cable, cooled down with liquid nitrogen, is installed in Germany to be tested for two years. See.

Graphene: over 11 thousand patents over the world, with China on the lead, and graphene manufacturers in the United Kingdom. See.

 

Upcoming events in the area

– 2º Workshop Adesão Microbiana e Superfícies. Here.

– 13th European Vacuum Conference + 7th European Topical Conference on Hard Coatings + 9th Iberian Vacuum Meeting. Here.

– 19th International Conference on Ion Beam Modification of Materials. Here.

– XIII SBPMat Meeting. Here.

– International Symposium on Crystallography – 100 years of History. Here.

– Congresso Brasileiro de Engenharia Biomédica (CBEB). Here.

– MM&FGM 2014 – 13th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials. Here.

– X Brazilian Symposium on Glass and Related Materials (X-BraSGlass). Here.

To suggest news, opportunities, events or reading recommendations items for inclusion in our newsletter, write to comunicacao@sbpmat.org.br.
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XIII SBPMat Meeting: record of submissions with over 2,100 abstracts.

The XIII SBPMat Meeting, to be held in João Pessoa from September 28 to October 02nd has registered more than 2,100 submitted papers – a record in the history of the Society’s annual meetings.

Among the 19 symposia of the event this year, the ones which received more submissions, holding over 200, were the symposium N, dedicated to Surface Engineering; M, on nanomaterials for nanomedicine, and B, about ceramic and metallic materials obtained through chemical methods.

The term for submitting abstracts ended on June 13. Until July 15, the authors of the submitted papers will be notified about their approval, necessary modifications or rejection.

Bernhard Gross Award

Among the accepted papers, the ones submitted by undergraduate or graduate students may compete for the Bernard Gross Award. With this award, the committee of the XIII SBPMat Meeting will distinguish the best papers presented by students in each symposium (one poster and one oral presentation, at most). The winning papers may be published in a special issue of the open access journal “IOP Conference Series: Materials Science and Engineering” dedicated to the XIII SBPMat Meeting, with no cost for the authors. To take part in the contest, the authors, once they are notified of the approval, must send an extended abstract, in compliance with the instructions and the model offered at the site of the event.

About the event

The SBPMat annual meeting is a traditional, international forum, dedicated to recent advances and perspectives on Materials Science and Technology. In the last editions, the event has gathered approximately 1,500 attendees, from the five regions of Brazil and dozens of others countries, for presenting and discussing scientific and technological studies in the field of Materials.  The event also counts with plenary lectures, offered by internationally renowned researchers, and an exhibition of interest for the Materials community.

Schedule

  • Resubmission of papers after being notified about necessary changes: up to July 10.
  • Notification of the accepted abstracts: up to July 15.
  • Submission of extended abstracts for the Bernhard Gross award: from July 15 to August 08.

SBPMat´s community people: interview with Victor Carlos Pandolfelli.

Victor Carlos Pandolfelli, full Professor at the Materials Engineering Department of the Federal University of São Carlos (DEMa – UFSCar), assumed his position as a member of the advisory board of the World Academy of Ceramics (WAC) in a ceremony held on June 11, in Montecatini Termi (Italy), during the International Conference on Modern Materials and Technologies (CIMTEC). In that occasion, there was also the first meeting of the advisory board. Elected for the 2014-2018 term, Pandolfelli is one of the two representatives of the Americas for this period, jointly with a researcher from the United States.

Graduated in Materials Engineering at the DEMa – UFSCar (1979), Victor Carlos Pandolfelli has been researching subjects in the field of ceramic materials since the time of for his master’s thesis, defended in 1984, at DEMa-UFSCar. It was also in that field that he conducted the research for his doctorate, at the University of Leeds (United Kingdom), concluded in 1989, and his postdoctoral scholarship, held from 1996 to 1997 at the Polytechnique Montreal, in Canada.

Pandolfelli is a full member of the Brazilian Academy of Sciences (ABC) and fellow of the American Ceramic Society (ACerS), as well as a member of the WAC. He is or was part of the editorial boards of the journals  InterceramRefractories Manual and Refractories World Forum (Germany), Materials Research, Revista Cerâmica and Journal of Materials Research and Technology (Brazil), China’s Refractories (China),  Cerámica y Vidrio (Spain), Refractory ApplicationsRefractories Applications Transactions  and American Ceramic Society Bulletin (USA), and Ceramics International (Italy).

He is a visiting Professor at the Wuhan University of Science and Technology (China) and Latin American Coordinator of the Federation for International Refractories Research and Education (FIRE), an organization comprising universities in different countries and major companies in the field of refractories. Since 1993, he coordinates the ALCOA (Aluminum Company of America) laboratory at UFSCar.

Holder of a 1A-level fellowship for research productivity in the Brazilian Council for Scientific and Technological Development (CNPq), Professor Pandolfelli is the coauthor of more than 400 peer-reviewed papers, a book and eight deposited patents. He advised 50 master’s theses and 16 doctoral dissertations. Many studies developed or advised by him were awarded by entities such as the German Ceramic Society (Germany), Technical Association of Refractories of Japan, American Ceramic Society, Petrobras, Alcoa Alumínio S.A., Magnesita S.A, Brazilian Industrial Federation, and the Brazilian Associations of Aluminium, Ceramics and Metallurgy, Materials and Mining, among others. In his professional activities, he has interacted with 380 collaborators, coauthoring scientific papers.

Below is our interview with the researcher.

Tell us a little about your history: what led you to become a scientist and work in the field of ceramic materials?

The first aspect I would like to highlight is that life is made of choices that many times are not very logical or well planned. Actually, I studied Materials Engineering and, in the beginning, used to think about working with metals, but throughout the time I held a curricular traineeship in a company, still during my undergraduate studies, I had to meet a demand in ceramic materials. Then, I graduated specializing both in metals and in ceramic materials. In a time when the industry offered more jobs and better wages, I disregarded this scenario and chose to start my master’s studies in ceramics in the recently founded Materials Engineering program offered by UFSCar. Very soon after I enrolled for the master’s, there was a call for an selection to be a lecturer at UFSCar. I applied, was approved, and only then my life was truly dedicated to ceramic materials.

The professional turning point happened in my doctoral and postdoctoral studies abroad, when my network of contacts was tremendously expanded, just as the visibility of the work I was coordinating. Another aspect that collaborated a lot is that, even from the start, I endeavored to establish projects with companies, which taught me how to conduct the research that I consider “use-oriented basic research”. Then, I could really conciliate the fundaments acquired and developed at the university with the needs of the industry, while also creating opportunities so the students could take traineeships, as well as providing jobs.

This “use-oriented basic research” is a road with two ways that constantly interact to build a firm bridge between the university and the industry. We, as researchers, must comprehend the needs of the industry, and use the research and foundation tools we have at the university to help companies solve real issues. Many times, it is through an actual problem that we are motivated to understand the fundaments and use them to perceive new opportunities for applying and creating technologies.

Today, the path I chose enables me to take part in the Federation for International Refractories Research and Education, FIRE, which is a non-profit organization that gathers eleven universities around the world and seventeen companies. FIRE’s goal is to invest in the education of students in their master’s or doctoral years, providing them with a financial aid so they may spend six months to a year in affiliated universities or companies, have an international experience and apply or expand their knowledge in the field.

Therefore, my life as a researcher in the field of ceramic materials started more as an accident, and now, actually, it is focused on Complex System Engineering, considering that, at this moment, there are no materials defined only by a single field of expertise.

What do you consider to be your main contributions to the field of Materials?

Since I became a Professor, my project in the professional field always consisted of establishing three pillars, which feed one another and are the foundations to everything I do: teaching, research and industrial partnerships. This cycle is vital because, through teaching, I can meet good students, have the opportunity to invite them to conduct researches, which may subsequently serve the national and international industry, or the academia. Only by means of a good partnership we detect the needs of the industry and are able to illustrate our lectures, applying those foundations so they don´t become sterile, but may be filled by said needs.

Concerning teaching, it is certain that training people who are now developing great projects in the academic and industrial communities would be the main point of my contribution to education. As the tradition says, good teachers are measured by the number of people they taught, who now are better than them. Fortunately, today I have very well employed students, whether in research, teaching or companies, what proves my contribution.

The main aspect in regard to research, according to my self evaluation, was selecting a complex field to develop, with great opportunities to deepen and test my knowledge.  Once I returned to Brazil, after obtaining my doctoral degree in advanced ceramics, I felt it was very difficult to establish this subject as a research field here; however, the capacities I had acquired could be easily applied to other necessities of the country.  It was then that I realized how what I learned could be useful for the steel, metallurgy, aluminum and refractories industry. So, I adapted my expertise to the local reality, instead of trying to bring the international study to Brazil for a direct application of the advanced ceramics, which still is, up to this date, an incipient market. Within this scenario, my research tried to comprehend the different stages of the production cycle of the refractories. I defined a strategy to commit myself, every four or five years, to one topic related to the cycle of producing and understanding such materials. Throughout the more than 20 years I spent working in this field, it allowed me to know the complete cycle, not just the data collected by the literature.  As a result, we are writing a book to be released until the end of the year, in English, by a German publisher, filled with the product of the research we conducted involving from raw materials and processing to properties and simulations, providing a very clear and deep perspective on the microstructure engineering in refractory ceramic materials.

On the subject of industrial partnerships, which is the third pillar, I would say there is no way to do engineering only in a laboratory. We need to know how the market goes, as well as to learn to work with deadlines, to expose the data to industrial testing, to understand that the material is just one item within the whole. This I really owe to my industrial partnerships, which have always accompanied me, since I concluded my doctorate. We have partnerships that have been lasting for 24 straight years, as is the case with Alcoa Alumínio, where several people earned their master’s and doctoral degrees, and some of them work for the company. Many other companies, in Brazil and abroad, also contributed for the creation of this use-oriented basic research environment. We have solid partnerships with Petrobras, with Magnesita, a refractories company, with FIRE, etc. Thus, a large portion of the resources and opportunities of the group come from industrial partnerships, or federations working on this company-university bridge.

In your opinion, what are the main challenges to Science and Materials Engineering today?

I would highlight two major challenges. The first one would be the “materials genome” initiative. Due to the need to save time and costs with research, it is increasingly necessary to create a database and apply simulations in order to minimize the time spent in laboratorial experiments, reaching the expected result in the fastest way possible. Said “materials genome” consists of detecting their DNA and, by the association of computer tools, trying to conceptualize new materials still unimagined by the current technology, each time sooner. So I predict that the materials laboratory of the future will have less equipment, multidisciplinary teams and more computers with high processing speed, which will provide a more objective idea on what to do in the laboratory to produce new materials.

The other great challenge is 3D printing, comprising the class known as additive manufacturing, which has emerged with a tremendous force, considering that companies have been noticing how labor costs in developing countries are already high. In a first moment, the industries in developed countries started to realize that the manufactured products would be more competitive if produced abroad. So, as a first wave, they brought the manufacturing process to the developing countries, but this environment changed with time, and in countries such as China and Brazil, labor is starting to become very expensive. In addition to that, the legislation ruling exports and taxes only makes the scenario worse. So, countries such as Germany and the United States are once again manufacturing at home, using an entirely automated system, based on 3D printing, which is similar to regular printing, but, instead of printing X Y, prints X Y Z, and, instead of toner, uses materials. 3D printing is simply revolutionizing the whole market, keeping in mind that today it is possible to own a materials printer at home and do the build yourself for jewelry, toys, etc. Furthermore, it is already making implants, using stem cells as a component to create organs in 3D printers.

With this technique, associated with the first item I mentioned, simulation, we will have new materials that we are not able to obtain with the traditional processing methods. The idea I propose to you now was the same I presented in my first meeting of the WAC advisory board. It was so well received by the committee that it became the theme of the forum for members of the academy to be held in two years, which is going to bring together the best researchers and companies in the world dedicated to this field.

Another interesting point to elaborate is that we are experiencing the age of Complex Systems Engineering. No one speaks about specialization fields anymore. What we need, more than ever, is the sum of the knowledge of the different fields. For example, as to materials printed in three dimensions, having the equipment is not enough. We require computer programmers, mechanical engineers, production engineers, materials engineers, chemists, physicists, biologists, managers, all working closely, because we are no longer dealing with knowledge that a single person is able to hold.

In your opinion, how did you build the recognition of the international ceramic research community, attested, for example, by your election as a member of the advisory board of the WAC?

In addition to all that was already said, I would add that every victory is a collective effort. There were 34 years of intense work in national and international partnerships with industries and supporting agencies. I believe that the standard formula to achieve anything is: teamwork, persistence, associating yourself to the best and promoting your name nationally and internationally.

Leave a message for our readers who are starting their careers as scientists.

My answer is going to have some traditional elements, others not so much. The traditional suggestion is widely known: energy and commitment, work and sweat. The part that is not so traditional is about not confusing the opportunities we have today with a convenient life. Living is not easy. The professional life is full of challenges and the current opportunities are here to make competition even more intense. Now, competition is set in a global scale. In any place around the world someone may be doing the same thing I am developing in my laboratory. Because of that, every young scientist must be really aware that companies and financing agencies will seek who can do it in the best, fastest and cheapest way, producing the highest possible amount of return to the society.

One point that I would really like to stress is that the real world is not Facebook, victories are reached after many battles, and many defeats. This virtual universe where we are always surrounded by famous people, enjoying accomplishments and partying does not exist.

Another issue is that, due to the many opportunities we have today, young people take one already looking for another, fulfilling neither. Instead of firmly grabbing a branch, they are always thinking about leaping for the next one. They must be very careful. Do at least one task competently, at a time. If you are studying for your master’s, develop a good productivity rate, establish a network, then you may change your subject, if it is the case. The scientific communities are not as big as we think they are. We need to do a very good job from the very start, with high quality and great respect for the group in which we work.  The world spins quickly, and in a not so distant future, the same people may open or close doors to you. In our professional life, to a certain degree, we may rise based on our own capacities, but then we are seriously going to need to be inserted by the national and international community. It is at that point that I may need those people to whom I gave a bad impression.

SBPMat´s community people: interview with Reginaldo Muccillo.

The new WAC members in their inaugural ceremony. Prof. Muccillo is the first from right to left. 

On the morning of June 09th, in the Italian district of Montecatini Terme, the Materials researcher Reginaldo Muccillo, managing director of our SBPMat from 2012 to 2013, was sworn in as member of the World Academy of Ceramics (WAC). WAC is an international entity, with its main office located in Italy, dedicated to promoting progress in the field of ceramics, as well as to spread awareness regarding the social impact and cultural interactions offered by science, technology, history and arts in the field of ceramics.

Reginaldo Muccillo was one of the seventeen selected members in the 15th election process conducted by the WAC academicians, which recognizes the merit of those who substantially contributed to the field of ceramics. Being the only Brazilian member elected this time, Muccillo shared the induction ceremony with researchers and other professionals from China, Spain, the United States, Finland, Italy, Japan, Poland, Portugal and Sweden. The ceremony was held during the opening session of the International Conference on Modern Materials and Technologies (CIMTEC).

Researcher from the Materials Science and Technology Center of the Nuclear and Energy Research Institute (IPEN), Reginaldo Muccillo earned his undergraduate, Master’s and Doctoral degrees in Physics, at the University of São Paulo (USP). He did research stages abroad, first at the National Research Council in Ottawa (Canada) during his Doctorate, then, during his postdoctoral studies, at the Max Planck Institut fuer Festkoerperforschung, in Stuttgart (Germany) and the Institut National Politechnique de Grenoble (France). He was the (co) coordinator of seven issues of the Brazilian Electroceramics Symposium, the VII SBPMat Meeting (2008), and the 6th International Conference on Electroceramics (ICE 2013). He has been the main editor of the journal Cerâmica, an official publication of the Brazilian Association of Ceramics (ABCeram) for 15 years. He holds a 1A-level fellowship for research productivity in the Brazilian Council for Scientific and Technological Development (CNPq).

What follows is a brief interview with the scientist:

Tell us a bit about your history: what led you to become a scientist and work in the field of ceramic materials?

Already in my undergraduate studies, I left the Engineering course in USP’s Polytechnic School to attend Physics. Holding a research scholarship in the field of Nuclear Physics, I met renowned researchers in the USP’s Physics Institute, who effectively influenced me to pursue a scientific career. Once I graduated, I proceed to IPEN, for my Master in Solid-State Physics. Then, when I concluded my Master’s studies, I went to Canada for a research stage beeing part of my Doctorate course. After returning the IPEN, having defended my doctorate at the USP, I started to conduct researches with ceramic materials, moving from Solid-State Physics to Materials Science and Engineering.

In your opinion, what were your main contributions to the field of Materials?

Working in a research institute, I could focus all my time to conduct the research work itself, to raise resources in supporting entities (São Paulo Research Foundation – FAPESP, and CNPq) for improving the infrastructure of the laboratory (I am an experimental researcher dedicated to assembling and collecting data from equipment, analyzing such data and wrinting articles to be submitted to indexed and peer-reviewed journals), to train and instruct staff, to organize events, to edit scientific journals and to interact with the productive sector. In addition to the development of fundamental research in the field of Materials, my expertise allows me to seek applications in devices concerning many industrial sectors.

In your opinion, what are the main challenges to your current research topics in Materials Science and Engineering? 

Explaining, modeling and providing theoretical equations to several physical and chemical phenomena that occur in the Ceramic Materials Science.

In your opinion, how did you receive the recognition of the international Ceramics research community, as expressed by your election as a WAC scholar? 

Developing research work, training staff at undergraduate, master’s, doctoral and postdoctoral levels, assembling laboratories for the scientific community (multi-users), editing journals (the Cerâmica) in the field of ceramic materials, and researching materials for producing sensors and alternative energy sources, as well as, most recently, flash sintering.

Featured paper: papaya and cinnamon – ingredients in antimicrobial films for food packaging.

The scientific paper by members of the Brazilian community on Materials research featured this month is:

Caio G. Otoni, Márcia R. de Moura, Fauze A. Aouada, Geany P. Camilloto, Renato S. Cruz, Marcos V. Lorevice, Nilda de F.F. Soares, Luiz H.C. Mattoso. Antimicrobial and physical-mechanical properties of pectin/papaya puree/cinnamaldehyde nanoemulsion edible composite films. Food Hydrocolloids. Volume 41, December 2014, Pages 188–194. DOI: 10.1016/j.foodhyd.2014.04.013.

Papaya and cinnamon: ingredients in antimicrobial films for food packaging.

The ingredients and one of the films. Photo: Flavio Ubiali. – Núcleo de Comunicação Organizacional, Embrapa Instrumentação.

Edible packagings are films that may be eaten without harming one’s health. They may be used to wrap food in order to protect it, to improve its appearance or to provide some texture or flavor. Such films already are on the markets, replacing animal tissue in cold meats or seaweeds in sushi, just to name a few uses.

Besides being interesting under an environmental perspective, as they may use wasted residues from fruit and vegetables in their composition, they are even more attractive when provided with antimicrobial properties, because it allows the decrease in the amount of preservatives in the food they wrap.

In Brazil, a team comprising materials engineers, chemists and food engineers has produced edible films with antimicrobial properties, based on renewable sources: pectin, papaya and cinnamon essential oil.

The project was developed in three main stages. The first one was performed at the National Nanotechnology Laboratory for the Agribusiness in the instrumentation unit of Embrapa (the Brazilian Agricultural Research Corporation) and consisted in obtaining and characterizing nanoemulsions of cinnamaldehyde, the main component in the cinnamon essential oil.  Using mechanical stirring in a controlled way, with several speeds, the researchers obtained emulsions with cinnamaldehyde particles of different sizes, from 20 to 500 nm of diameter.

For the second stage, also conducted at Embrapa Instrumentation, the researchers produced films based on pectin (a natural polymer found in plant tissues and known for its gelling capacities), added with papaya puree and the obtained emulsions. Finally, the team characterized the films. Their mechanical and antimicrobial properties were analyzed at the Packaging Laboratory of the Federal University of Viçosa, UFV, in Minas Gerais State, while their properties as a water barrier were assessed at Embrapa Instrumentation. Professors from the State University of Feira de Santana in Bahia State and São Paulo State University, UNESP, performing at that moment their postdoctoral researches at Embrapa and UFV’s laboratories contributed to the project as well.

The results of their studies were recently published by the journal Food Hydrocolloids.

The films

Incorporating cinnamaldehyde nanoemulsions to the films inhibited the development of four pathogenic bacteria tested by the team of researchers (Escherichia coli, Salmonella enterica, Listeria monocytogenes and Staphylococcus aureus).

“The most interesting result is that decreasing the size of the nanoemulsions particles notably potentiated the inhibitory activity of the films”, highlights Caio Otoni, main author of the paper, Master’s student in Materials Science and Engineering at the Federal University of São Carlos, UFSCar. “That may impact the use of polymeric packaging with antimicrobial capacites for wrapping food, considering that the same food security guaranteed by the active packaging may be obtained using lower amounts of preservatives, if encapsulated in smaller particles, which is an advantage for manufacturers (lower production costs) and consumers (ingestion of less preservatives)”, concludes Caio, who developed the project with other seven authors, while attending the Food Engineering undergraduate course at UFV.

In addition to providing antibacterial properties to the films, the nanoemulsions made them less permeable to humidity and less plastic (more rigid and less extensible). On the other hand, the papaya pulp caused an inverse effect, concerning those attributes.

The authors Luiz Henrique Capparelli Mattoso, Marcos Vinicius Lorevice e Caio Gomide Otoni (from left to right) at Embrapa Instrumentation. Photo: Flávio Anselmo Faria Ubiali – Núcleo de Comunicação Organizacional, Embrapa Instrumentação.

E-MRS Meeting in France: SBPMat organization and Brazilian presence at organic electronics symposium.

SBPMat was part of the organization of the E-MRS (European Materials Research Society) Spring Meeting, held from May 26th to 30th, in Lille, France. SBPMat’s President, Roberto Mendonça Faria, full professor at the Institute of Physics of the University of São Paulo (USP) was among the Conference Chairs, jointly with four European scientists.

In addition to that, SBPMat has supported one of the event’s 30 symposia, the DD “Functional materials and devices for organic electronics”, which was also assisted by the Brazilian National Institute of Science and Technology in Organic Electronics (INEO). The symposium displayed substantial Brazilian attendance. It was organized by SBPMat’s Financial Director, Professor Marco Cremona (Pontifical Catholic University of Rio de Janeiro, PUC-Rio), by SBPMat´s current Scientific Director Rodrigo Bianchi (Federal University of Ouro Preto, UFOP), and Carlos Graeff (São Paulo State University, UNESP), SBPMat´s former Scientific Director, as well as by a German and an Italian scientists.

“The symposium was a success, both regarding the researchers invited – all highly qualified and leaders in their field of expertise – as to the level of results presented in the technical sessions and the subjects approached, all current concerns in the field of organic electronics”, summarized Professor Cremona. “Not only that, but the symposium has contributed to improve the image of Brazil in this field, and to start new collaborations, while still strengthening the ones that already exist”, he adds.

Dedicated to the subject of organic electronics, the symposium comprised oral presentations, posters and 23 invited lectures in sessions on organic light-emitting devices, organic transistors, flexible devices, sensors, organic solar cells, bioelectronic devices, graphene and other transparent conductive films. Other sessions approached the relation between nanostructure and function in advanced organic devices, and the modeling, simulation, characterization methods and new horizons for materials and organic devices.  “The topics were well balanced among basic and applied researches in the field of organic electronics, including electronic devices and biosensors”, as Professor Bianchi comments.

During the four days of the symposium, over 140 studies were presented, by researchers from European Union member countries, Korea, Japan, Brazil, the United States, Russia, Australia, among others. “The presentations in the Symposium DD brought high-impact lectures to E-MRS, with great participation of Brazilian researchers, proving that the country and SBPMat have been working in fields with scientific impact, and in the knowledge frontier”, Bianchi adds. Indeed, Brazil contributed to the symposium with approximately 20 papers, and two invited lectures.

Award

The symposium also featured awards for the best three posters and two papers presented in oral form:

Oral presentations:

  • Jean Nicolas Tisserant, ETH Zürich, D-AGRL Food and Soft Materials (Zürich, Switzerland). “Growth and Alignment of Thin Film Organic Single Crystals from Dewetting Patterns”, Empa.
  • Daniele Sette, CEA, LETI, DCOS (Grenoble, France). “Influence of the Annealing Temperature on the Properties of Inkjet Printed Porous Silver Layers”.

Posters:

  • Anshuma Pathak, TU Munich, Molecular electronics (Munich, Germany),
  • Structural and Electrical Study of Organophosphonate SAMs on AlOx/Al”.
  • Jung-Hung Chang, National Taiwan University, Graduate Institute of Photonics and Optoelectronics (Tapiei, Taiwan), “All–solution processed transparent organic light emitting diodes with graphene as top cathodes”.
  • Lidiya Leshanskaya, Institute for Problems of Chemical Physics, Kinetics and Catalysis, Academician Semenov (Moscow, Russia), “Origin of the advanced charge transport properties of indigo thin films: influence of the dielectric on the crystal structure of the semiconductor”.