July 2008 was perhaps one of the most rewarding months in the professional career of the Portuguese scientist Elvira Fortunato, and also one of the busiest in media interviews. In fact, it was in July she learned she had won the competition of the European Research Council (ERC), winning EUR 2.25 million, the “Advanced Grant”, to conduct a project on transparent electronics. Titled “Invisible”, the project proposed the development of transparent transistors manufactured using metal oxides as semiconductor components, instead of the traditional silicon semiconductors. In addition to being transparent, these materials have an economic and ecological advantage, and improve the transistors performance.
July 2008 was also the month of extensive divulgation on the internet of a worldwide innovation developed under Elvira Fortunato’s leadership in the laboratory of Materials Research Center (CENIMAT), at the New University of Lisbon, located on the Caparica campus: the paper transistor. Fortunato and her team inserted the conductor and semiconductor components of the transistor on both sides of plain paper sheets (vegetable cellulose), using simple environmentally friendly manufacturing processes and carried out at ambient temperature. In addition to using paper as support, the Portuguese team broke new ground by giving this material an active role: to act as insulating component of the transistor. Different from traditional silicon based transistors, the paper based transistor of the Portuguese team is flexible, recyclable, made from renewable material and much cheaper. These features open up numerous application possibilities of “paper electronics” (a concept coined by Fortunato and registered by Paper-e®), from biosensors to smart packaging.
Transparent electronics.
Elvira Fortunato’s attraction to science began in her childhood when she saw an onion cell under an optical microscope. Her passion for scientific research occurred in 1987 when Elvira, in her last year of the Engineering Physics and Materials course at the New University of Lisbon (UNL), had the opportunity to be part of the team at a microelectronic laboratory. Continuing her scientific training at UNL, Fortunato carried out research on amorphous silicon and obtained her master’s degree in semiconductor materials (1991) and a PhD in Materials Science specializing in microelectronics and optoelectronics (1995). In 1991 she began her teaching career at UNL. In 1998 she took over the directory of CENIMAT, a position she holds to this day. In 2012, she became Full Professor of the Department of Materials Science, Faculty of Science and Technology of the University. Since the end of 2015, together with six other European scientists from different fields, she is part of the first group of scientific advisors dedicated to strengthening the EU policies for scientific issues, the High Level Group of Scientific Advice Mechanism.
In nearly three decades of research, the materials scientist, whose H index is 54 according to Google Scholar, has about 500 published articles and more than 50 patents filed. Her scientific production includes more than 14,000 citations.
Paper electronics.
Elvira Fortunato has received dozens of awards from various entities; among them the “Grand Officer” of the Order of Infante D. Henrique, awarded by the President of the Republic of Portugal (2010). As for this year, the scientist has been honored with two major awards. Together with her husband, the scientist Rodrigo Martins, they are among the finalists for the European Inventor Award 2016, the European Patent Office, for the invention of the paper transistor. Moreover, the researcher was awarded by the European Academy of Sciences (EURASC) with the Blaise Pascal Medal for Materials Science 2016, which also makes her a fellow of this academy.
At the end of September, Elvira Fortunato will be in Brazil, in the city of Campinas (SP), giving a plenary lecture at the XV Brazil-MRS Meeting. The theme will be “green electronics”, a concept that covers the development of components and devices via environmentally friendly manufacturing processes, using materials such as cellulose produced by bacteria in addition to metal oxides, plain paper and nanostructured paper. Through a process of ingenuity, the speaker will show some of the many potential applications of these green devices.
Here is a brief interview with the Portuguese scientist.
SBPMat Newsletter: – In your opinion, what are the main research results of the work undertaken by you and your group in the field of invisible electronics and paper electronics? Are there any products or prototypes in the market? Any patents licensed? Are there advances in the manufacturing techniques? Could you to share with our readers references of articles or patents?
Elvira Fortunato: – In the area of transparent electronics the most immediate applications are in the area of flat-panel displays. The new generation of displays will switch to OLED technology over LCD and thin film transistors made of metal oxides have better performance to those used, the reason why they will replace the current amorphous silicon-based ones. There are prototypes in the market now, especially in the leading companies in this area, such as Samsung and LG.
In the electronic paper area, a more disruptive area, there are no products on the market as of now, but we believe that within the short/medium term it will be quite visible in the area of smart packaging and the internet of things. In terms of packaging, there are some prototypes, especially in the Nordic countries, such as in packaging for medicines.
We have several patents, and others in partnership with companies, in the field of electronic paper and transparent electronics.
You can get more information on transparent electronics and electronic paper:
E. Fortunato, P. Barquinha, and R. Martins, “Oxide Semiconductor Thin-Film Transistors: A Review of Recent Advances,” Advanced Materials, vol. 24, pp. 2945-2986, Jun 2012.
R. F. P. Martins, A. Ahnood, N. Correia, L. Pereira, R. Barros, P. Barquinha, et al., “Recyclable, Flexible, Low-Power Oxide Electronics,” Advanced Functional Materials, vol. 23, pp. 2153-2161, May 2013.
SBPMat Newsletter: – In your opinion, what are the next steps or challenges to reach a widespread green electronics?
Elvira Fortunato: – Scientific research associated with recent technological developments are increasingly moving toward a strong awareness of the environment and of the adverse effects of which we are now the victims, and which concerns the scientific community. I also believe that in this area the recent cop21 conference in Paris made great strides, in particular the “Paris Agreement”, a historic commitment signed by 195 countries for the Sustainable Development in 2030.
SBPMat Newsletter: – Please leave an invitation or message about your plenary speech to the readers who will participate in the XV Brazil-MRS Meeting.
Elvira Fortunato: – If you are interested in seeing how you can make dreams come true, come see the lecture “Green electronics: a technology for a sustainable future”.
Edgar Dutra Zanotto, Professor at the Federal University of São Carlos (UFSCar), one of the founders of SBPMat and researcher in the Materials area for nearly 40 years, was chosen as a fellow of the American Ceramic Society (ACerS) – a recognition conferred annually upon few select members.
The elevation to fellow is a peer recognition by ACerS members for outstanding contributions to ceramics science or art. In fact, the fellows of ACerS are chosen from the almost 10,000 members of the society, located in 70 countries, in a nomination and election process that has the participation of members, fellows, and with the final approval of the directors of ACerS. For scientists working in academia, scientific and technological production is one of the main points considered in the election.
Professor Zanotto currently has more than 5,500 citations and an H index of 40, according to Google Scholar. Among the other positions he holds, he is director of the Center for Research, Technology and Education in Vitreous Materials (CeRTEV) and editor of the Journal of Non-Crystalline Solids.
The election of the new fellows of ACerS will be celebrated at the awards and recognition banquet of the 118th annual meeting of the society on 24 October 2016 in Salt Lake City, Utah, in the United States.
[Paper: Oxide-cladding aluminum nitride photonic crystal slab: Design and investigation of material dispersion and fabrication induced disorder. Melo, EG; Carvalho, DO; Ferlauto, AS; Alvarado, MA; Carreno, MNP; Alayo, MI. Journal of Applied Physics 119, 023107 (2016). DOI: 10.1063/1.4939773.]
Designing structures to manipulate light
Photonic crystals are nanostructures capable of manipulating visible light and other forms of electromagnetic radiation by organizing its structure in periodic patterns.
In addition to the natural materials with these characteristics, such as opal, photonic crystals are man-made and are generally classified as metamaterials. Its characteristics (shape, size and composition) are designed to control light waves. Through nanofabrication processes these become tangible structures and are used in many “nanophotonic” devices. Nevertheless, producing these structures is by no means a simple task.
The authors of the article. From left to right, at the laboratory: Prof. Marcelo Nélson Paez Carreño, Emerson Gonçalves de Melo, Maria Elisia Armas Alvarado and Prof. Marco Isaías Alayo Chávez. At the insets: Daniel Orquiza de Carvalho (left), André Santarosa Ferlauto (right).
With a study based on computer simulations, a team of Brazilian scientists headed by researchers from the Polytechnic School of the University of São Paulo (EPUSP) presented scientific contributions that can be used to improve the production of photonic crystals to enhance their performance of manipulating light. According to Emerson Melo, the first author of a paper on the study that was recently published in the prestigious Journal of Applied Physics (JAP) “the work presents a detailed analysis of the effects caused by nanofabrication processes on the optical properties of planar photonic crystals produced on silicon dioxide-cladding aluminum nitride”.
“The idea emerged from the opportunity of combining the excellent optical and physical characteristics of aluminum nitride (AlN), such as transparency over a wide wavelength range (from the near infrared to the ultraviolet range), its non-linear effects, great stability and temperature variations, with the advantages provided by photonic crystals, such as the construction of high-efficiency waveguides, curves and resonant cavities in nanoscale dimensions, in addition to the various optical effects of photonic crystals, such as very low group velocity and low-intensity nonlinear effects of the materials”, adds Emerson, who is a doctoral student in Microelectronics – Photonics in EPUSP, within the Group of New materials and Devices of the Microelectronics Laboratory of the Department of Electronic Systems Engineering. Emerson`s doctoral research, whose advisor is Professor Marco Isaías Alayo Chávez, enquires into the study, production and characterization of nanophotonic devices such as waveguides, resonant cavities, optical modulators and switches in aluminum nitride photonic crystals.
The study that resulted in the paper published in the JAP began with an experimental stage. Thin films of aluminum nitride and silicon dioxide (SiO2) were manufactured by the EPUSP group, and with the research collaboration from UFMG and UNESP they were analyzed by the Variable Angle Spectroscopic Ellipsometry (VASE) technique to determine the dielectric functions, which was later used as the theoretical research data.
On the left, a diagram of a photonic crystal structure with some of the manufacturing defects studied. On the right, a diagram of the unit cell of the ideal photonic crystal designed by the scientists.
Then, the EPUSP group designed a photonic crystal, ideal in terms of performance and manufacturing possibilities, consisting of a layer of aluminum nitride between two silicon dioxide layers, with round holes arranged in a repeating pattern along the “sandwich” material. Using analytical and numerical methods, the USP researchers simulated some of the “side effects” of the photonic crystal manufacturing processes of this type (e.g., variations of size and location of holes) and theoretically analyzed how these imperfections affect the performance of the photonic crystal.
The theoretical research of Emerson and the other researchers of EPUSP focused on the imperfections generated in the two main stages of the nanofabrication process normally used in photonic crystals such as the one studied: electron-beam lithography and plasma-assisted dry etching. “The results presented allow to assess that the electron-beam lithography process has greater effect on the performance of devices that explore the dispersion of electromagnetic radiation through the photonic crystal, such as prisms, optical switches and modulators”, says Emerson. “However, the quality of the dry etching process has a more profound impact on the characteristics of devices into which linear or exact defects are introduced in the periodic network of the photonic crystal to insert harmonic modes within the photonic band gap. In this case, the dry etching has to be extremely well controlled for manufacturing the devices where waveguides and resonant cavities are among its main elements”.
In addition to making headway in understanding the role of nanofabrication processes of photonic crystals in the performance of nanophotonic devices, the authors of the paper were able to define a method to design planar photonic crystals with core and cover in thin film dielectric materials. “The methodology includes determining the dielectric function of the material by the spectroscopic ellipsometry technique to analyze the dispersion effects of the materials, determining the geometrical parameters that maximize the photonic band gap and the analysis of the impacts caused by deviations introduced in the manufacturing process”, explains Emerson.
The research received financial support from the National Council for Scientific and Technological Development (CNPq) and from the Financier of Studies and Projects (Finep).
The authors of the article. From left to right, at the laboratory:.
Brazilian Materials Research Society (SBPMat) newsletter
News update from Brazil for the Materials community
English edition. Year 2, issue 11.
SBPMat news
SBPMat elections: The voting period for the election of the next Executive Board and five counselors runs until December 12. All SBPMat members in good standing may vote by accesing the members area with their e-mail and password. Go.
XIV SBPMat Meeting: Find on the site of the event the proceedings of the meeting with the abstracts of papers approved for presentation (ISBN is 978-85-63273-29-1).Here.
XIII SBPMat Meeting: Papers bestowed with the Bernhard Gross Award at the XIII SBPMat Meeting (João Pessoa, 2014) were published in open access by IOP Publishing. More.
Featured paper
A team of scientists from Brazil developed “nanomanipulations” in samples prepared in Israel, composed of serpentine-shaped carbon nanotubes over crystalline quartz. Through experimental and theoretical analyzes, the scientists were able to measure the strain suffered as a result of nanomanipulations and to understand phenomena related to the adhesion of nanostructures over materials such as quartz. Researchers condensed the study’s findings in a mathematical equation applicable to various materials. The results of the study were recently published in Nano Letters. See our story about the paper.
People in the Materials community
We interviewed the winner of the Capes Doctoral Dissertation Award in the Materials area, Edroaldo Lummertz da Rocha, PhD in Materials Science and Engineering from the Brazilian Federal University of Santa Catarina (UFSC). Edroaldo became interested in science because it would enable him to help people somehow. In his doctoral research, he worked on the interface among Materials Science, Computer Science and Biology to study the interaction between biological cells and nanomaterials. He generated knowledge that can lead to the development of new drug delivery systems. In addition to this satisfaction, his PhD gave him the gratification of seeing two articles he co-authored on high-impact journal covers. See our interview with Eldroaldo and data about other dissertations related to Materials area which also were awarded by CAPES this year.
2015 “Alfred W. Allen Award” of the American Ceramic Society, to the work of authors from academia and industry – among them, Brazilian Victor Carlos Pandolfelli (UFSCar professor) and Mariana Braulio (Alcoa Aluminio).More.
Work done in Brazil and presented by Mirella Boery (doctoral student at UNICAMP) received the Best Poster Award at IUMRS-ICAM, held in Korea in October this year. More.
Reading tips
Scientific journalism stories based on highlighted papers.
Self-organized nanostructures of crumpled graphene (3D) with gold nanoparticles can be excellent substrates for SERS analysis (based on paper from Nano Letters).Here.
New family of 2D semiconductor material is made of perovskite (based on paper from Science). Here.
News from Brazilian National Institutes of Science and Technology (INCTs) and Research, Innovation and Dissemination Centers (CEPIDs).
Research on YAB nanocrystals doped with Nd3 + opens possibilities of new random laser (INCT of Photonics).Here.
The innovation center of CDMF was opened at UFSCar and includes a spin-off on functional nanomaterials. Here.
Award given in event in Japan to a Brazilian paper on hard and low-density transparent glass-ceramic (CEPID Certev). Here.
Events
XIX Encontro Jacques Danon de Espectroscopia Mössbauer. Diamantina, MG (Brazil). December, 14 to 16, 2015. Here.
6th Transmission Electron Microscopy (TEM) Summer School. Campinas, SP (Brazil). January, 11 to 29, 2016. Here.
5th International Conference on Surface Metrology.Póznan (Poland). April, 4 to 7, 2016. Here.
43rd International Conference on Metallurgical Coatings and Thin Films (ICMCTF). San Diego (USA). April, 25 to 29, 2016. Here.
Photonic Colloidal Nanostructures: Synthesis, Properties, and Applications (PCNSPA Conference 2016). Saint Petersburg (Russia). June, 27 to July, 1, 2016. Here.
XXV International Conference on Raman Spectroscopy (ICORS2016).Fortaleza, CE (Brazil). August, 14 to 19, 2016. Here.
Edroaldo Lummertz da Rocha, winner of the Capes Dissertation Award in Materials field.
The scientific career of Edroaldo Lummertz da Rocha is permeated by two features of the area of Materials science and technology: interdisciplinarity and impact on people’s lives.
After graduating in Computer Science from Universidade do Extremo Sul Catarinense (UNESC), in the south of Brazil, Edroaldo got his master’s degree in Electrical Engineering at the Federal University of Santa Catarina (UFSC), with a study on the transport of phonons in fractal geometry. In 2010, he began a doctoratal program in Materials Science and Engineering, also at UFSC. With the advised of Professor Carlos Renato Rambo and Professor Luismar Marques Porto, Edroaldo worked on the interface among Materials Science, Computer Science and Biology to study the interaction between biological cells and bio and nanomaterials. In 2012, Edroaldo submitted, as first author, a scientific paper on simulations of interactions between nanoparticles and cell membranes. His paper was published in the journal Physical Chemistry Chemical Physics (DOI: 10.1039 / C2CP44035K) in 2013 and was featured on the front cover.
From January to December 2013, Edroaldo remained in the United States developing a part of his doctoral research at Harvard University (United States), more precisely in the Wyss Institute for Biologically Inspired Engineering, a multidisciplinary and multiinstitutional entity dedicated to the development of materials and devices inspired in nature, aimed at transforming medicine and building a more sustainable world. There he was advised by Professor Donald E. Ingber, founder and director of Wyss.
Two papers signed by Edroaldo became covers of prestigious journals.
A second journal cover (DOI:10.1016/j.cell.2014.07 .020) increased Edroaldo´s curriculum in 2014 as a result of his participation, along with researchers at Harvard University and other institutions in the United States, in a Cell Engineering field study.This time the distinction was in Cell, the prestigious journal of Life Sciences, whose impact factor is 32.242.
In September 2014, Edroaldo obtained his PhD degree by defending his dissertation entitled “Nanoparticle-cell interactions and biomaterial-cells induce global changes in gene expression programs“. A year latter, the work was distinguished as the best dissertation defended in Brazil in 2014 by Capes, the government agency linked to the Brazilian Ministry of Education in charge of promoting high standards for post-graduate courses in Brazil. Edroaldo received the news of the award in the city of Rochester, in the United States, where he works in scientific activities as a postdoctoral fellow of the Mayo Clinic, an institution in the field of Medicine dedicated to research, education and patients´ care.
Interview with Edroaldo.
SBPMat Newsletter:– Could you tell us very briefly how did you become interested in science and in the Materials area, and what were the most important moments in your academic career so far?
Edroaldo Lummertz da Rocha: – My interest in science arose from the possibility of doing something important and helping people somehow. My interest in the Materials area arose due to the existence of a special class of materials, called nanomaterials, which can be used for the development of new therapies for a variety of diseases such as cancer, vascular and neurodegenerative diseases. However, the understanding of how nanomaterials interact with cells and biological tissues is extremely important for the development of safe and effective therapies.
The first most important event of my academic career was when Professor Carlos Renato Rambo, of the Federal University of Santa Catarina, agreed to be my advisor during my doctoral period. That’s where it all began. The second most important moment was when I had the opportunity to conduct part of my doctorate studies at the Wyss Institute at Harvard University, which significantly contributed to the development of my academic career.
Gene regulatory network made of data of gene expression from 16 kinds of human cells and tissues.
SBPMat Newsletter:– What, in your opinion, is the main contribution of your award-winning thesis?
Edroaldo Lummertz da Rocha: – The main contribution of my thesis was the development of computational approaches to systematically understand how cells interact with nanomaterials and respond to external stimuli. This can serve as a basis for future studies in the field of development of new drug delivery systems and lead to a better understanding of how gene expression programs change when nanomaterials interact with cells.
SBPMat Newsletter:– Which criteria guided you to make a quality research highlighted at national level (the award-winning thesis)? To what factors do you attribute this achievement?
Edroaldo Lummertz da Rocha: – Dedication, discipline, creativity and a good team and co-workers are essential to progress in any area. Family support is essential, above all. From the point of view of the thesis, under the guidance of Professor Carlos Renato Rambo, I had the opportunity to work in a variety of projects and this contributed to the multidisciplinary nature of my thesis.
SBPMat Newsletter:– We invite you to leave a message for our readers who are conducting scientific research in the Materials area.
Edroaldo Lummertz da Rocha: – It is a long road, so you might as well enjoy the way. Being a scientist is something really rewarding, with new challenges and opportunities every day. The hope of discovering something important and providing a significant contribution is the driving force that guides my research. The effort is never in vain and there is always hope where there is perseverance.
More award-winners in the Materials field.
Several other works related to Materials Science and Engineering were awarded this year with the Capes Thesis Award, which was awarded to the best doctoral theses in 2014 in each of the 48 areas of knowledge recognized by Capes in postgraduate courses. The announcement of the winners was made on August 31 and the awards event will take place on December 10 in Brasilia city, the capital of Brazil. Here follow some examples related to Materials area:
– Honorable Mention in the Materials area. Thiers Massami Uehara. Study of the interaction of nanomaterials with models of cell membranes and neural stem cells. Advisor: Valtencir Zucolotto. Postgraduate Program in Science and Engineering of Materials – USP/SC. Dissertation file: http://www.teses.usp.br/teses/disponiveis/18/18158/tde-27102014-134646/pt-br.php
– Capes Award in Chemistry. Rodrigo Villegas Salvatierra. Thin Films of Conjugated Polymer and Carbon Nanostructures obtained in Liquid-Liquid Interfaces: Synthesis, characterization and application in photovoltaic devices. Advisor: Aldo José Gorgatti Zarbin. Postgraduate Program in Chemistry – UFPR. Dissertation file: http://dspace.c3sl.ufpr.br:8080/dspace/handle/1884/37915
Sunday, September 27.By 6:45 pm. Hundreds of people enter the plenary room of the Convention Center “SulAmérica”, in Rio de Janeiro (Brazil) for the opening ceremony of the 14th annual meeting of the Brazil Materials Research Society, whose acronym in Portuguese is SBPMat. The opening table is composed by the chairmen of the event, Prof. Marco Cremona (Brazil) and Prof. Fernando Lázaro Freire Junior (Brazil), as well as the present SBPMat president, Prof. Roberto Mendonça Faria (Brazil), the immediate past president of the European Materials Research Society (E-MRS), Prof. Rodrigo Martins (Portugal), and the general secretary of the International Union of Materials Research Societies (IUMRS), Prof. Robert Chang (USA). Behind them, a big banner shows the logos of dozens of institutions and companies that gave financial support to the event.
At the opening table, from the readers´ left: Prof. Rodrigo Martins (Portugal, E-MRS immediate past president and IUMRS officer), Prof. Fernando Lázaro Freire Junior (Brazil, chair of the event), Prof. Marco Cremona (Brazil, chair of the event), Prof. Roberto Mendonça Faria (Brazil, SBPMat president), and Prof. Robert Chang (USA, IUMRS general secretary).
Near 1,000 attendants are present at the ceremony, which starts with the Brazilian national anthem. The chair Prof. Cremona welcomes the participants to the meeting. Prof. Robert Chang, who was president of MRS (Materials Research Society) in 1989 and founded IUMRS in 1991, convokes the participants of all countries to try to solve together the most important global challenges for materials research, related to health, food, environment, transport etc. Representing E-MRS, Prof. Martins, who presently takes care of Global Leadership and Service Award at IUMRS, emphasizes his desire of promoting international connections. Prof. Faria talks a little bit about Brazil, which, as well as other developing countries, is very rich in raw materials but needs to add value to its products by means of science and technology.
After the opening, Prof. Eloisa Biasotto Mano (Brazil) goes to the stage for the Memorial Lecture “Joaquim da Costa Ribeiro“, which is a distinction bestowed annually by SBPMat on a Brazilian researcher with outstanding career in the field of Materials. This 91-year-old scientist pursued international scientific education at a time when most women were illiterate in Brazil, and founded in the Federal University of Rio de Janeiro (UFRJ) the first research group in polymers in the country. This group later became the Institute of Macromolecules (IMA), which was directed by Eloisa until she retired. In the memorial lecture, she talks about macromolecular materials and, using a representation of a polyethylene molecule made by herself with wire, she shows how these kind of molecules behave in response to their big size. A group of Prof. Eloisa´s disciples (among them, the present director of IMA) assists her with the presentation, showing affection, gratitude and admiration for her . After the talk, many attendants of diverse ages make a queue to take a picture with this protagonist of the dawn of polymer science in Brazil. Eloisa, who is professor emeritus of UFRJ, poses for all the pictures she is ask to. At the end of the photo session, she accepts our microphone and leaves a message for the young people starting a carreer in science:
Right after the memorial lecture, in the same venue, the participants enjoy the welcome cocktail while meeting friends and collaborators. The cocktail is animated by live “chorinho” music, an instrumental Brazilian popular genre original from Rio de Janeiro.
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PLENARY LECTURES
Nader Engheta
Nader Engheta.
Monday, September 28.At 8:30 in the morning, the plenary room is full of attendants waiting to learn about metamaterials and the extreme behavior of waves interacting with them in the first plenary lecture of the event. The speaker is Nader Engheta, the H. Nedwill Ramsey Professor of Electrical and Systems Engineering at the University of Pennsylvania (United States). This Iranian-born scientist is a recognized world leader in research on metamaterials, and holds an H number of 69. Through experimental and theoretical research, Engheta and his collaborators have created such unconventional things as nanocircuits made of metamaterials that function as optical filters. Since the beginning of the talk, Engheta captivates the audience with some history of science and with a world of structures created by using particular composite metamaterials with particular sizes and geometries and arranged in particular ways with the aim of obtaining unconventional interaction with light and other waves.
In the afternoon, at 3:30, more than 400 people attend the second plenary lecture, which is about glass-ceramics (materials formed through controlled crystallization of certain glasses). The speaker is the Brazilian researcher Edgar Zanotto, Professor at the Federal University of São Carlos (UFSCar), in Brazil, where he founded and heads the Vitreous Materials Laboratory (LaMaV) that assembles a big international team. Zanotto, who is a world-renowned expert on glass-ceramics, presents in his lecture many useful applications of these materials, such as cooking hobs or artificial bones and teeth. He also mentions the scientists who, along 60 years of glass-ceramics history, contributed to the advancement of research on that topic. In spite of those contributions, the comprehension of some aspects of the formation of glass-ceramics is not complete, he says, but that is not a problem for glass-ceramics fabrication and applications. It´s just an opportunity for fundamental scientists.
Paul Ducheyne. Biomaterials. Merging Materials Science with Biology.
Paul Ducheyne.
Tuesday, September 29.8:30 am, time for the third plenary lecture of the event. The lecturer, Prof. Paul Ducheyne, also comes from University of Pennsylvania (USA), where he directs a multidisciplinary center for bioactive materials and tissue engineering research. An authority on biomaterials field, Ducheyne is the editor in chief of a six-volume book on biomaterials published in 2011. In the talk, he shows a series of biomaterial-made devices, grafts, scaffolds etc., most of them already being commercialized, that actively interact with the body, either by promoting tissue formation (for example, bone) or by releasing drugs for diverse treatments. Ducheyne presents their effects on solving health problems, numbers about their markets, and scientific recent advances that can make them even more effective.
Some hours later, at 3:30 pm, hundreds of participants cluster again, this time around Prof. Ulrike Diebold, whose research group at UT Wien (Austria) is devoted to the understanding of fundamental mechanisms and processes occurring in surfaces at the atomic scale. Prof. Diebold catches the audience attention from the beginning to the end by showing, through scanning tunneling microscopy images, how she spies the behavior of atoms on the surface of metal oxides – topic in which she is a worldwide leader researcher. In particular, she reveals two secrets of metal oxide surfaces: the first one about how oxygen adsorbs on titanium dioxide and the second one about how active single metal atoms are in oxidation process in magnetite.
Wednesday, September 30. In the plenary lecture of the morning, the audience is transported again to the social-impacting world of biomaterials by Prof. George Malliaras, Greek-born, working at École Nationale Supérieure des Mines de Saint-Étienne (France), where he heads the Department of Bioelectronics. Malliaras has an H index of 64. After many years working on organic electronics, he entered the new field of organic bioelectronics and obtained impacting results. His research is about electronic devices made of conducting polymers that match properties of living tissues. These devices are used for interfacing with human brain – a “natural electronic device”. The final purpose is to study brain activity or diagnose and even treat neurological diseases such as epilepsy. An example of device is a transistor that enables boosted in vivo recording of brain activity with low invasion. As suggestions for the materials community, Malliaras highlights the importance of collaboration with neuroscientists and physicians and the challenge of improving the understanding of electronic transport and structure.
Ichiro Takeuchi. Combinatorial Approach to Materials Discovery.
Ichiro Takeuchi.
In the talk of the afternoon, the speed of science progress accelerates following the beat of the combinatorial approach. Prof. Ichiro Takeuchi, from University of Maryland (USA), explains how his group manages to optimize materials and properties discovery. As well as in lottery one can buy a big number of tickets to have more chances to win a prize, in materials discovery scientists can produce a huge number of combinations of elements to obtain a compound with desirable properties. For example, for quaternary compounds, millions of combinations are possible, from which only 0,01 % are known. In Prof. Takeuchi´s lab, machines for thin film deposition used with masks work night and day to create patchwork-like samples containing libraries of similar compounds. Then, the libraries are characterized by rapid tools, giving information about the properties of several compounds at the same time. Coupled with appropriate theory and computational simulations, these high-throughput experiments become real materials discovery engines.
Claudia Draxl. On the Search of Novel Materials: Insight and Discovery though sharing of big data.
Claudia Draxl.
Thursday, October 1st,8:30 am. In the last plenary lecture of the event, Prof. Claudia Draxl (Humboldt University, Germany) publicly wonders how to make available the huge amount of data resulting from experiments around the world, high-throughput screening, computer clusters etc. Why to do that with scientific data? For confirmation, broad dissemination in society, sharing with distant collaborators and reuse with new purposes. With that aim, Prof. Draxl and collaborators from European countries are facing the development of a repository of materials raw data, called Novel Materials Discovery (NoMaD), which hosts, organizes and shares materials data on the web.
Some of the symposia coordinators with the meeting chairs and the SBPMat president.
The symposia at SBPMat annual meetings are selected from proposals that can be submitted to the event committee by any scientist from anywhere in the world. This edition of the event encompassed 26 symposia (including the satellite event “8th International Summit on Organic and Hybrid Solar Cells Stability”) and 2 workshops, and it registered symposia coordinators from Argentina, Denmark, England, France, Germany, Italy, Ireland, Japan, Portugal, Spain, Swiss, USA, and, of course, Brazil. Within the symposia, near 190 invited speeches and more than 2,000 technical works are presented and discussed in oral and posters sessions, on a wide range of subjects going from carbon nanostructures to biomaterials, from characterization techniques to computer simulation, from materials for sustainable development to safe use of nanomaterials.
While some symposia have been held year after year in the SBPMat meeting, the University Chapters symposium was a novelty of this year meeting. It was completely organized by students from diverse points of Brazil who are coordinators of the SBPMat University Chapters. The chapters are organized teams, affiliated with the society, composed of graduate and undergraduate students working in materials field. The members of these groups carry out diverse activities that complement their academic education. The students from the existing chapters, which were eight in number up to the moment of the meeting, faced the challenge of organizing a symposium – a task that is usually done by senior researchers.
In fact, students have not only active but also massive participation in the XIV SBPMat meeting. Almost half of the attendants (950 people) were master, doctoral and even undergraduate students doing research on materials field. In Brazil, the federal agency for research support, CNPq, has a program called “scientific initiation” that grants scholarships to undergraduate students to conduct research under the supervision of a Professor.
For the oral sessions of the symposia, all along the meeting, after the morning plenary session, and before and after the afternoon plenary talks, the attendants distributed themselves among 17 rooms. The poster sessions took place at the end of the afternoon from Monday to Wednesday and in the morning on Thursday. Walking through the long corridors of the poster sessions, one could see active scientific discussion, many times between a young author and a renowned researcher. One could also hear very positive comments about the original arrangement of the poster panels. The size of the poster session was impressive. In total, near 1,800 research works were presented in the posters.
Twice a day from Monday to Wednesday, the attendants could take a break and have a coffee with cookies while visiting the exhibition of the event, which encompassed 32 stands showing a variety of scientific instruments, services, scientific journals, books and opportunities for the materials community. In addition, on Wednesday, the participants had the opportunity to attend four hours of technical talks given by some expositors about fabrication and characterization techniques.
On Thursday by 12:30 the closing ceremony started. In the closing panel, Prof. Soo Wohn Lee, from MRS Korea and conference chair of the IUMRS-ICAM 2015, joined the representatives of SBPMat, E-MRS and IUMRS.
In his final remarks, the meeting chair Prof. Cremona presented some photos of the past days and hours that made the public remember so nice and fruitful moments. He also presented the numbers of the event: 2,000 registered people from 985 institutions, among which 300 were foreign researchers from 40 countries. Finally, he announced that the next SBPMat annual meeting will be held in Campinas city (São Paulo state).
After the closing words, more than 20 prizes were given to young researchers within four different awards: the Bernhard Gross Award, a traditional SBPMat recognition for the best works of students, and the awards bestowed by IUMRS, E-MRS and Horiba.
Announcement of the students who won the Bernhard Gross Award.
