Papers that received the Bernhard Gross Award at the XIII SBPMat Meeting (João Pessoa, 2014) were published in open access by IOP Publishing.

The special issue of IOP Conference Series dedicated to winners of the Bernhard Gross Award 2014 is already published on the web, with free and open access.

Through the Bernhard Gross Award, a prize for undergraduate and graduate students, the Brazilian Society for Research in Materials (SBPMat) annually distinguishes the best papers (one oral presentation and one poster, at the most) of each of the symposia of the society annual meetings. In 2014, the award highlighted twenty papers presented during the XIII SBPMat Meeting, which took place in the city of João Pessoa (PB) from September 28 to October 02, 2014.

The award-winning authors were invited by SBPMat to submit  to peer review their works in the form of scientific articles, aiming at publishing them in the IOP Conference Series, dedicated to the publication of papers presented at scientific meetings. Among the articles submitted, 8 were accepted for publication and comprise this special issue.

See the volume dedicated to the Bernhard Gross Award 2014: IOP Conference Series: Materials Science and Engineering, Volume 97, conference 1.

SBPMat newsletter. English edition. Year 1, issue 10.


Brazilian Materials Research Society (SBPMat) newsletter

News update from Brazil for the Materials community

English edition. Year 1, issue 10. 

Greetings, .

How was the XIII SBPMat Meeting: reports, pictures, videos and presentation files.

Approximately 2,000 oral presentations and posters, 105 invited lectures. Coming from 20 countries around the world and from the 5 regions of Brazil, 1,650 attendants – 15% more than in the last edition. We went beyond the numbers and reported, with texts and pictures, some of the most important moments in the intense program of the event. Here.

During the 7 plenary lectures of the XIII SBPMat Meeting, internationally renowned scientists presented world-class science and talked about its impact on society. LEDs, organic electronics, quasicrystals, materials for nanomedicine and computer simulations were the main themes discussed. We present to our readers a brief account of each lecture, pictures of our plenary speakers and files from the presentations, kindly provided by the lecturers. Here.

The 19 symposia this year approached a universe of subjects: new materials, traditional materials, processing and analysis techniques, applications in several fields, technology transference… Among their coordinators, the event recorded researchers from universities, research institutes and companies from Brazil and other 7 countries. We shared videos here with brief testimonials from some of these coordinators on their symposia. Watch here.

In the XIII Meeting, SBPMat launched the document “Science impact. A special report on materials science in Brazil”, produced by IOP jointly with SBPMat. Distributed for the very first time for all attendants, the document, in English, provides the world with a current panorama on materials research in Brazil. Learn more.

Also during the meeting, 30 young researchers attended a historic moment: the first meeting of SBPMat’s University Chapters program. The 4 established chapters presented themselves, and SBPMat leaders talked to the students. Learn more.

Bernhard Gross Award 2014: 20 young researchers awarded for presenting the best works in the symposia of the XIII SBPMat Meeting.

Among the 20 winners, the best oral presentation and the best poster of all the XIII SBPMat Meeting were chosen. The award ceremony was carried out on the last day of the event. We release the list of the award-winning works and authors, and pictures of the granting of the certificates. Here.

The Bernhard Gross Award for the best work presented in an oral session was given to Juliana Eccher, for her pioneering research, in Brazil, on the use of liquid crystals as organic semiconductors, developed during her doctoral studies at UFSC, jointly with several international collaborators. Learn more about the research and its authors.

André Luiz Maia de Azevedo received the Bernhard Gross Award to the best poster in the XIII SBPMat Meeting for the work he developed during his master studies in UFF. Graduated in Pharmacy, and a professional in the field, André managed to achieve what he sought: decrease costs and overcome limitations in the existing techniques for drug analysis, developing a graphite and epoxy composite, used as an electrode inside the electrochemical cell. Learn more about the research and its authors.

XIV SBPMat Meeting: Let’s save the date!

Coordinated by Professor Marco Cremona (PUC-Rio), the fourteenth edition of the annual SBPMat meeting will be held in Rio de Janeiro, from September 27th to October 01st, 2015, at Centro de Convenções SulAmética – a modern venue, with easy and quick access from any quarter of the “Marvelous City”.

Some reading tips.

Nobel Prize in Physics 2014: an energy-efficient and environment-friendly light source, the LED. Here.

–  Capes Award of best thesis on Materials: quick synthesis of strontium titanate composites for gas sensor. Here.

Second IUMRS International Conference for Young Researchers (ICYRAM), Haikou, Hainan, China, October 24th to 26th: Reports, files from the presentations and pictures. Here.

To suggest news, opportunities, events or reading recommendations items for inclusion in our newsletter, write to


Bernhard Gross Award for the best poster of the XIII Meeting to André Luiz Azevedo Maia, looking for innovations in drug analysis.

Representing André Azevedo, his advisor Felipe Silva Semaan received the certificate for the best poster of the event from the president of SBPMat.

With a degree in Industrial Pharmacy at the Fluminense Federal University (UFF) and pharmacist at a multinational laboratory, André Luiz Azevedo Maia plunged in the field of Materials through his Masters degree in Chemistry, seeking to lower costs and overcome the limitations of techniques used in drug analysis. “During my career I acquired knowledge in analytical techniques that require higher spending both in the acquisition and in maintenance and operation, e.g., CLAE, GC, AA – flame and graphite furnace,” said the winner of the prize. “That motivated me to start the development of analytical techniques in Electrochemistry” he added.

André´s master thesis, supervised by Professor Felipe Silva Semaan and funded by the Rio de Janeiro State Research Foundation (FAPERJ), the Brazilian Federal Council for Scientific and Technological Development (CNPq) and UFF, was conducted between 2012 and 2014 in the Electrochemistry and Electroanalytical Group at the Institute of Chemistry, UFF, within the line of research in composite materials initiated in the group in 2009.”The use of composite materials aimed to further minimize costs for research (because there would be no need to purchase electrodes for commercial work) and opened up the possibility of developing chemical modifications and adjusting models for specific applications,” said André.

André and the research team then developed graphite and epoxy composites in various compositions, which were characterized by thermal gravimetric analysis (TGA-DTA), atomic force microscopy (AFM), X-ray diffraction (XDR) and cyclic voltammetry. One of these compositions, with 64.4% graphite, showed the best results regarding thermal and chemical stability, mechanical and electrical properties and electrochemical performance. The composite was used as an electrode in an electrochemical cell.

“In this work, the scientific contribution to society is the availability of a material with added value, with a cost about 300 times smaller than the commercial one (the glassy carbon electrode), and able to perform tasks with equivalent quality,” says André, who affirms to be attracted by the scientific activity because it offers the possibility of using tools he acquired at the university to solve problems for society.

The work presented at Symposium P on composites and advanced carbon nanostructures, deserved the Bernhard Gross Award for best poster of the XIII SBPMat Meeting, in addition to the best Poster of Symposium P. Partial results of the same research had already been distinguished in last year´s SBPMat meeting, where André received the Bernhard Gross Award for best work of the symposium on science, engineering and commercialization of industrial, electronic and biomedical devices.

André´s master degree was concluded with this highlight granted by SBPMat, but the work goes on into the group. The researchers are preparing a patent. And the results of André´s study are beeing a basis for the development of composite electrodes modified with metal films, cellulose acetate films and modified chitosan to encapsulate nanoparticles, among other studies.

“The award in this international congress rewards the effort and dedication of everyone involved and leads to further discussion, indicating the feasibility of obtaining the products targeted by the group,” said André.

See the award-winning poster file:

Bernhard Gross Award for best oral presentation to Juliana Eccher, for her pioneer research in Brazil on the use of liquid crystals as organic semiconductors.

Juliana Eccher received the certificate of best oral presentation from the chairman of the 2015 meeting.

Awarded work: Electrical response of a columnar liquid crystal applied in a diode structure. Juliana Eccher1, Gregorio Couto Faria2, Harald Bock3, Heinz Von Seggern4, Wojciech Zajaczkowski5, Wojciech Pisula5, Ivan H. Bechtold1; 1Universidade Federal de Santa Catarina, 2Universidade de São Paulo, 3Centre de Recherche Paul Pascal, Cnrs and Univ.Bordeaux, 4Technische Universität Darmstadt, 5Max-Planck-Institut For Polymer Research, Mainz.

The Bernhard Gross Award for the best oral presentation of the XIII SBPMat Meeting was given to a pioneer research in Brazil in its theme. “In my opinion, the main significance of awarding this work regards the dissemination of the research involving liquid crystals as organic semiconductors for applications in the field of organic electronics, especially concerning Brazil, since there are only a few groups working towards this research line in the country”, said the newly Ph.D. graduate Juliana Eccher, who presented her paper at the symposium D on materials and organic electronic devices.

Graduated in physics from the Federal University of Santa Catarina (UFSC), Juliana decided to pursue an academic career in the field of experimental physics and chose to obtain her Masters and Ph.D. degrees at UFSC, both in the field of materials, more precisely in the study of liquid crystals . “Research in materials is fascinating because it offers a broad range of study in various fields of knowledge,” said Juliana, who attended the meeting of SBPMat on three occasions. “What attracts me the most is the possibility of new discoveries and the diversity of applications,” she added.

Liquid crystals, materials used in widely marketed LCD screens, have recently been recognized as a promising class of self-organized organic semiconductors with a high electrical mobility. Some of them are called columnar because their molecules, shaped like discs, are piled on top of each other forming stable columns. When the columns are aligned perpendicularly to the substrate, there is homeotropic alignment – an ideal configuration for the application in OLEDs (organic light emitting diodes) and OPVs (organic photovoltaic devices).

Juliana Eccher´s winning work, developed during her Ph.D. in Physics, with the supervision of Professor Ivan Bechtold, studied a thin film of liquid crystal based on perylene-diimide aromatic center and proposed a relation between its electrical properties and its molecular organization. The liquid crystal was investigated within a diode structure. The work was supported by the Brazilian Federal Council for Scientific and Technological Development (CNPq), in particular through INCT/INEO , and by the Brazilian Federal Agency for the Support and Evaluation of Graduate Education (CAPES).

Juliana and the other members of the team could obtain homeotropic alignment in films deposited by spin-coating technique by subjecting them to annealing, resulting in an increase of five orders of magnitude in the electrical mobility and also a significant increase in the electroluminescence intensity of the device.

A Ph.D. research with international collaborations

The work was made possible thanks to several international collaborations. The synthesis of the organic compound was carried out by Dr. Harald Bock of the Centre de Recherche Paul-Pascal, CNRS, in France, collaborator since 2010 of the Laboratory of Organic Optoelectronics and Anisotropic Systems at the Department of Physics, UFSC, which is coordinated by Professor Bechtold. Initially in Brazil, by means of a collaboration with Professor Gregório Faria of the São Carlos Institute of Physics at USP, the team began to investigate the potential of organic material as emitting layer in a diode structure. Furthermore, in 2013, Juliana underwent a research internship in Professor Heinz von Seggern´s group at the Technische Universität Darmstadt, in Germany, where she managed to manufacture the devices and make their electrical characterization. While beeing in Germany, Juliana established a collaboration with Dr. Wojciech Pisula, of the Max-Planck-Institut for Polymer Research, which group conducted analyses by grazing incidence wide angle x-ray scattering (GIWAXS), which were fundamental to investigate the orientation of the columns with respect to the surface. Finally, with the collaboration of Professor Gregório, a theoretical model was developed for the analysis of electrical measurements of current density as a function of the applied voltage.

“The major achievement in my Ph.D. thesis was to show that, depending on the desired application, it is possible to modify and control the orientation of liquid-crystalline domains with respect to the electrodes, which significantly improved the electrical properties of the devices,” said Juliana.

To learn more about this work

– Scientific article published: J. Eccher, G. C. Faria, H. Bock, H. von Seggern, I. H. Bechtold. ACS Appl. Mater. Interfaces 5, 11935-11943 (2013).

– Juliana Eccher´s presentation at Symposium D of the XIII SBPMat Meeting:


20 students were awarded in the XIII SBPMat Meeting for the works they presented at the symposia.

The Bernhard Gross Award, granted by the Brazilian MRS (SBPMat) highlights the best works in each symposium of the annual SBPMat meetings (an oral work and a poster per symposium, at most), presented by undergraduate or graduate students. Among the finalists, the best oral work and the best poster of all the meeting are chosen each year. (Know more about Bernhard Gross, one of the pioneers of research on materials in Brazil).

At the closing ceremony of XIII Meeting of SBPMat, in the morning of the 2nd of October 2014, at the Convention Center of João Pessoa (PB), the winners of the 2014 Bernhard Gross Award were announced and award certificates were handed in. The awarded papers this year may be part of a special edition in the open access magazine “IOP Conference Series: Materials Science and Engineering”.

Here is the list of the works distinguished with the 2014 Bernhard Gross Award.

2014 winners

Oral: Electrical Response Of A Columnar Liquid Crystal Applied In A Diode StructureJuliana Eccher1, Gregorio Couto Faria2, Harald Bock3, Heinz Von Seggern4, Wojciech Zajaczkowski5, Wojciech Pisula5, Ivan H. Bechtold11Universidade Federal de Santa Catarina, 2Universidade de São Paulo, 3Centre de Recherche Paul Pascal, Cnrs and Univ. Bordeaux, 4Technische Universität Darmstadt, 5Max-Planck-Institut For Polymer Research, Mainz

Poster: Sensor Development Exploiting Graphite-Epoxy Composite As Electrode MaterialAndré Luiz Maia Azevedo1, Renato Soares de Oliveira1, Eduardo Ariel Ponzio1, Felipe Silva Semaan11Universidade Federal Fluminense

– Simposium A winners

Poster: Information On Crystallinity Index Of Sugarcane Biomass Submitted To A Chemical and Enzymatic Treatment Via Solid-State Nuclear Magnetic Resonance (Ssnmr)Oigres Daniel Bernardinelli1, Igor Polikarpov1, Eduardo Ribeiro de Azevedo11Instituto de Física de Sao Carlos.

– Simposium B winners

Oral: Synthesis Of Potassium Niobates By Microwave Assisted Solvothermal Method; Thiago Marinho Duarte1, Luzia Maria Castro Honório1, Juliana Kelly Dionízio de Souza1, Arnayra Sonayra Brito Silva1, Elson Longo2, Ricardo Luis Tranquilin3, Iêda Maria Garcia Santos4, Antônio Gouveia de Souza1, Ary da Silva Maia11Universidade Federal da Paraiba, 2Universidade Estadual Paulista, Campus de Araraquara, 3Universidade Federal de São Carlos – Campus: São Carlos,4Universidade Federal da Paraíba.

– Simposium C winners

Poster: Magnetic Particles As Affinity Matrix For Purification Of AntithrombinAurenice Arruda Dutra Das Merces1, Jackeline da Costa Maciel2, Luiz Bezerra de Carvalho Júnior11Universidade Federal de Pernambuco, 2Universidade Federal de Roraima.

– Simposium D winners

Oral: Electrical Response Of A Columnar Liquid Crystal Applied In A Diode StructureJuliana Eccher1, Gregorio Couto Faria2, Harald Bock3, Heinz Von Seggern4, Wojciech Zajaczkowski5, Wojciech Pisula5, Ivan H. Bechtold11Universidade Federal de Santa Catarina, 2Universidade de São Paulo, 3Centre de Recherche Paul Pascal, Cnrs and Univ. Bordeaux, 4Technische Universität Darmstadt, 5Max-Planck-Institut For Polymer Research, Mainz.

Poster: How Surface Interactions Freeze Polymer Molecules At Room Temperature: A Single Molecule ApproachFrancineide Lopes de Araújo1, Gustavo Targino Valente1, Roberto Mendonça Faria1, Francisco Eduardo Gontijo Guimarães11São Carlos Institute Of Physics, University Of São Paulo.

– Simposia E/G/P winners

Oral: Bioactive Hybrid Aminopropyl-Silica Coating To Support Neuronal Growth and Suppress Astrocyte DevelopmentLarissa Brentano Capeletti1,2,3, Mateus B. Cardoso2, João Henrique Zimnoch dos Santos4, Wei He11University Of Tennessee Knoxville, 2Laboratório Nacional de Luz Síncrotron, 3Universidade do Rio Grande do Sul, 4Universidade Federal do Rio Grande do Sul.

– Simposium F winners

OralEvaluation of polymeric coatings on their efficiency of inhibiting the formation of inorganic scale. Maria de Fátima B. Souza, Celso Aparecido Bertran, Mônica de Oliveira Penna.

– Simposium G winners

Poster: Theoretical Investigation Of Optical and Structural Properties Of Ba-Doped Zno MaterialLuis Henrique da Silveira Lacerda1, Sergio Ricardo de Lazaro1, Renan Augusto Ribeiro11Universidade Estadual de Ponta Grossa.

– Simposium H winners

Oral: Luminescence Mechanism Of Titanium Doped Rare Earth Oxysulfides Phosphors Obtained By Rapid Microwave PreparationJosé Miranda Carvalho1, Cássio Cardoso Santos Pedroso1, Miguel Aguirre Stock Grein Barbará1, Pawel Gluchowski2,3, Lucas Carvalho Veloso Rodrigues4, Maria Cláudia França da Cunha Felinto5, Jorma Hölsä2, Hermi Felinto Brito41Instituto de Química da Usp, 2University Of Turku / Turun Yliopisto, 3Institute Of Low Temperature and Structure Research, 4Universidade de São Paulo, 5Instituto de Pesquisas Energéticas e Nucleares.

Poster: Amino Funcionalization Of Y2O3:eu(Iii) Red Nanophosphor Monitored By Luminescence Spectroscopy and Transmission Electron MicroscopyAndré Lucas Costa1, João Paulo Gelamos1, Gabriel Mamoru Marques Shinohara2, Sergio Antonio Marques Lima1, Ana Maria Pires11Fct-Unesp Campus de Presidente Prudente, 2Instituto de Química da Unesp.

– Simposium K winners

Oral: Automatic Reconstruction Of Austenite Grain Structure In Martensitic Eurofer-97 Steel From Electron Backscatter Diffraction Data; Verona Biancardi Oliveira1, Hugo Ricardo Zschommler Sandim11Escola de Engenharia de Lorena – Universidade de São Paulo.

Poster: A Dilatometric Study Of The Continuous Heating Transformations In Maraging 300 Steel; Adriano Gonçalves dos Reis1, Danieli Aparecida Pereira Reis2, Antonio Jorge Abdalla3, Jorge Otubo1, Hugo Ricardo Zschommler Sandim41Instituto Tecnológico de Aeronáutica, 2Universidade Federal de São Paulo, 3Instituto de Estudos Avançados, 4Escola de Engenharia Química de Lorena – Universidade de São Paulo.

– Simposium L winners

Oral: Photoelectrochemical Study Of Ta3N5 Nanotubes For Water SplittingSherdil Khan1, Marcos Jose Leite Santos1, Jairton Dupont1, Sérgio Ribeiro Teixeira11Universidade Federal do Rio Grande do Sul.

Poster: Hydrogen Production From Rice Husk Gray Obtained In The Pyrolysis ProcessSuelen Rodrigues Almeida1, Carolina Elicker1, Bruno Muller Vieira1, José Ramon Jurado Egea2, Pedro José Sanches Filho3, Mário Lúcio Moreira1, Sergio da Silva Cava1, Cristiane Raubach Ratmann1;1Universidade Federal de Pelotas, 2Consejo Superior de Investigaciones Científicas, 3Instituto Federal de Educação, Ciência e Tecnologia Sul.

– Simposium M winners

Oral: Graphene Nanoribbons Decorated With Magnetic Fe3O4 Nanoparticles For Dna SensingBlanca Azucena Gómez Rodríguez1, Manuel Perez Caro2, Deborah Zanforlin3, Ana Laura Elías4, José Luiz Lima1,5, Antonio Gomes Souza Filho6, Mauricio Terrones4, José Albino Aguiar11Universidade Federal de Pernambuco, 2Texas State University, 3Universidade Federal de Pernanbuco, 4Penn State University, 5Departamento de Bioquímica – Ufpe, 6Universidade Federal do Ceará.

Poster: Adjusting Supramolecular Electrostatic Interactions To Produce Mucoadhesive Nanocarriers For Protein DeliveryLeonardo Miziara Barboza Ferreira1, Natália Noronha Ferreira, Charlene Priscila Kiill, Jovan Duran Alonso, Maria Palmira Daflon Gremião; 1Faculdade de Ciências Farmacêuticas-Unesp.

– Simposium N winners

Poster: Preparation and Characterization Of The Lbl Films Based Nanoparticle Graphene Oxide Interacting With 3-N-Propylpirydinium Silsesquixane Chloride; Rodolfo Bonoto Estevam, Rodolfo Thiago Ferreira1, Alan Ben-Hur Bischof, Fábio Santana dos Santos, Cleverson Siqueira Santos, Sérgio Toshio Fujiwara, Karen Wohnrath, Jarem Garcia, Christiana Andrade Pessoa; 1Universidade Estadual de Ponta Grossa.

– Simposium O winners

Poster: Layered Materials As Nanocarriers To Bioactive MoleculesCaroline Silva de Matos, Michele Aparecida Rocha1, Christine Taviot Gueho2, Fabrice Leroux2, Vera Regina Leopoldo Constantino11Instituto de Química da Universidade de São Paulo, 2Institut de Chimie de Clermont-Ferrand.

– Simposium P winners

Poster: Sensor Development Exploiting Graphite-Epoxy Composite As Electrode MaterialAndré Luiz Maia Azevedo1, Renato Soares de Oliveira1, Eduardo Ariel Ponzio1, Felipe Silva Semaan11Universidade Federal Fluminense.

– Simposium S winners

Poster: Structural, Thermal and Optical Studies Of A Nanostructured Composite Formed By Binary Mixtures Of Elemental Nickel and Antimony Powders Produced By Mechanical AlloyingGleison Adriano da Silva1, Sérgio Michielon de Souza11Universidade Federal do Amazonas.

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.


  • 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.

XIII SBPMat Meeting: abstract submission and Bernhard Gross Award.

João Pessoa. Crédito: Cacio MuriloAbstract submission for the XIII Meeting of the Brazilian Materials Research Society (SBPMat) is open until May 23rd. The event will be held from September 28th to October 02nd, in João Pessoa, at the city’s brand new Convention Center.

Papers from Brazilian or foreign researchers and students will be accepted in any field of the 19 symposia of the event, which cover various themes regarding materials research and its applications. The symposia were selected by the event’s organizing committee, based on the proposals received for a call for symposia released in last October, directed to the whole scientific community.

The best papers in each symposium (at most, a poster and an oral presentation) presented by undergraduate or graduate students will receive the Bernhard Gross Award by the end of the event. 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 best papers of the XIII SBPMat Meeting.

About the SBPMat Meetings

The annual SBPMat meeting is a traditional international forum devoted to the recent advances and perspectives in Materials science and technology. In its last editions, the event has gathered about 1,500 participants, coming from the five regions in Brazil, and dozens of others countries, to present and discuss scientific and technological research results in the Materials field. The event also counts with plenary lectures given by internationally renowned researchers, as well as exhibitors concerned by the Materials community.

Instructions for submitting abstracts and participating in the Bernhard Gross Award:

Artigo em destaque: trabalho vencedor do Prêmio Bernhard Gross.

Neste mês, a seção “Artigos em destaque” do boletim traz a divulgação do trabalho vencedor do Prêmio Bernhard Gross ao melhor trabalho de estudantes apresentado no XII Encontro da SBPMat:

Self-organized 2-D Ni particles deposited on titanium oxynitride coated Si crystal sculpted by low energy ion beam. M. Morales, R. B. Merlo, R. Droppa Jr, and F. Alvarez.

Texto de divulgação:

Silício revestido para promover a auto-organização de partículas metálicas

Uma pesquisa de doutorado que está sendo desenvolvida no Instituto de Física “Gleb Wataghin”, da Unicamp, gerou uma contribuição à engenharia de superfícies ao propor um método simples para promover a formação de estruturas auto-organizadas sobre superfícies nanoestruturadas. Apresentada no XII Encontro da SBPMat pela doutoranda Mónica Morales Corredor, a pesquisa mereceu o Prêmio Bernhard Gross ao melhor trabalho do evento.

No trabalho, os pesquisadores descrevem a realização de três passos sucessivos. Num primeiro momento, um substrato de silício (Si) é esculpido mediante bombardeamento com íons de xenônio (Xe+), formando um padrão regular de sulcos e ondulações. Em seguida, essa superfície ondulada é revestida com um filme de oxinitreto de titânio (TiNxOy) que acompanha os relevos da lâmina de silício. Finalmente, partículas de níquel (Ni) são depositadas sobre o filme usando a técnica de pulverização catódica por feixe de íons. De maneira espontânea, as partículas se organizam num padrão que lembra uma malha ou rede de pesca.


À esquerda, imagem topográfica de AFM das partículas de Ni depositadas sobre substratos de TiNxOy em Si nanoestruturado. À direita apresenta-se o esquema do sistema formando uma rede com simetria 2D.

O tema das superfícies nanoestruturadas combinadas com arranjos de partículas metálicas tem sido alvo de estudos pelas suas possibilidades de aplicação para fins ópticos, magnéticos ou catalíticos, como por exemplo, no crescimento de nanotubos de carbono. Nesse contexto, um dos principais méritos ou novidades do trabalho premiado é o uso do filme de oxinitreto de titânio. “Ele preserva as nanoestruturas geradas pelo bombardeamento iônico e atua como barreira à difusão superficial das partículas metálicas”, diz Mónica. No trabalho apresentado no encontro, além de descreverem os passos necessários para a fabricação do sistema, os autores discutem os processos de difusão e nucleação envolvidos na formação dessa rede de partículas regularmente distribuídas.

A estudante premiada

Mónica Morales Corredor, primeira autora do trabalho vencedor, tem graduação, mestrado e doutorado (este último, em curso) em Física. “O fato de eu escolher a Física como carreira já implica um interesse por querer entender a natureza, e a pesquisa faz parte desse entendimento”, comenta Mónica, que trabalha com Materiais desde a graduação.

De nacionalidade colombiana, a estudante se formou em seu país de origem e depois veio para o Brasil para fazer o mestrado, no qual estudou o efeito das superfícies no crescimento de nanotubos de carbono. “Depois de acabar o mestrado, vi que ainda faltava muito por entender e por trabalhar nesse tema, motivo pelo qual decidi continuar com meu doutorado, ainda na mesma área e com o mesmo orientador, o professor Fernando Alvarez”, relata Mónica.

O Prêmio Bernhard Gross

Homenagem a um dos pioneiros da pesquisa em Materiais no Brasil, o professor Bernhard Gross, o prêmio foi instituído pela SBPMat para promover e reconhecer a participação de jovens no estudo da ciência e tecnologia de Materiais ao selecionar os melhores trabalhos de estudantes de graduação e pós-graduação apresentados nos encontros anuais da sociedade. De acordo com os professores José Alberto Giacometti e Julio Sambrano, coordenadores do XII Encontro da SBPMat, o prêmio deve incentivar a melhora crescente na qualidade dos resumos submetidos e no preparo dos alunos para apresentar os painéis.

Entrega do Prêmio Bernhard Gross ao melhor trabalho do simpósio. À esquerda, o representante da empresa Shimadzu, patrocinadora do prêmio. À direita e à esquerda do estudante que recebeu o prêmio, respectivamente, os professores José Alberto Giacometti e Julio Sambrano, coordenadores do XII Encontro da SBPMat.

Prêmios Bernhard Gross 2013

No XII Encontro da SBPMat, foram selecionados dentro do Prêmio Bernhard Gross os melhores trabalhos de onze simpósios e, entre eles, o melhor trabalho de todo o evento. Os melhores trabalhos dos simpósios foram escolhidos pelas comissões julgadoras montadas pelos organizadores de cada simpósio. Para a seleção do melhor trabalho do evento, os membros de todas as comissões se reuniram. “Neste ano o júri teve muita dificuldade em escolher, pois o evento teve um número muito grande de excelentes trabalhos”, diz o professor Roberto Faria, presidente da SBPMat.

A cerimônia de premiação ocorreu durante a solenidade de encerramento do encontro, no dia 3 de outubro. O melhor trabalho do evento recebeu mil reais da empresa Shimadzu, patrocinadora do Prêmio Bernhard Gross 2013. Veja a relação dos trabalhos premiados:

Melhor trabalho do XII Encontro da SBPMat: Self-organized 2-D Ni particles deposited on titanium oxynitride coated Si crystal sculpted by low energy ion beam, M. Morales, R. B. Merlo, R. Droppa Jr, and F. Alvarez. Trabalho apresentado no simpósio L (Surface Characterization: Techniques and Applications).

Melhor trabalho do simpósio A (Sol-Gel Materials: From Fundamentals to Advanced Applications): Impedance electrical immunosensor for hepatitis C diagnostics based on biorecognition between the antigenic peptide NS5A-1 and the antibody anti-HCV. Marli Leite de Moraes, Alem-Mar Bernardes Gonçalves, Lais Roncalho Lima, Fernando Vieira Paulovich, Osvaldo Novais Oliveira Jr and Sidney José Lima Ribeiro.

Melhor trabalho do simpósio B (Inorganic Thin Films – Methods and Applications):  Improvement of the wear properties of a diamond-like carbon film coated on ultrahigh molecular weight polyethylene for biomaterials. Jéssica Pereira dos Santos and Sérgio Camargo.

Melhor trabalho do simpósio C (Synthesis and Properties of Nanometric Materials): Cytotoxicity and Genotoxicity Evaluations of Nitric Oxide Donor Superparamagnetic Iron Oxide Nanoparticles. Amanda Franco Ludescher, Renata de Lima, Jhones Luis Oliveira, Ana Carolina Ferrarini, Amedea Barozzi, Seabra and Paula Silvia Haddad.

Melhor trabalho do simpósio D (Materials and Devices for Renewable Energy, Sustainability and Environment Protection): Study of the recovery and recycling of tailings from the concentration of iron ore for the production of ceramic aiming at sustainability. Fabiane Leocádia Silva, Fernando Gabriel Araújo, Fernando Leopoldo Kruger, Ana Paula Silva and Rodrigo Claudiano Gomes.

Melhor trabalho do simpósio E (Structure- properties relationship of advanced metallic materials): Deformation and Recrystalization of a trip/twip steel with 17% Mn and low C. Mirele Oliveira, Sara Ferreira de Dafé.

Melhor trabalho do simpósio F (Organic Electronics and hybrids: materials and devices): A facile combination of electroluminescence and photoluminescence properties to produce white light based on polymeric light-emitting diodes. Fernando Junior Quites, Teresa Dib Zambon Atvars and Gregorio Couto Faria.

Melhor trabalho do simpósio G (Molecular Modeling Materials Science): Hydrogen bonding of N-methylformamide with acetone. Glauco Garrido Almeida and João Marques Cordeiro.

Melhor trabalho do simpósio H (New Trends in Biomaterials and Nanomaterials Applied to Biosystems): Magnetic nanoparticles coupled with β-cyclodextrin as a delivery system for doxorubicin. Amanda Watanabe Paraguassú, Célia Machado Ronconi and Maria Domingues Vargas.

Melhor trabalho do simpósio N (Materials Education Symposium): An integrated project-based course for teaching of biomaterial biocompatibility to undergraduate students. Daniela Costa Silva, Juliana Alves Côrtes, Róber Freitas Bachinski, Carolina Nascimento Spiegel and Gutemberg Gomes Alves.

Melhor trabalho do simpósio O (Science, Engineering, and Commercialization of Next Generation of Industrial, Electronic and Biomedical Devices): Exploiting graphite-epoxy composite as electrode material for bioelectroanalysis. André Luiz Maia Azevedo, Renato Soares de Oliveira, Eduardo Ariel Ponzio, Juan Manuel Pardal and Felipe Silva Semaan.

Melhor trabalho do simpósio P (Advances in New Materials): Facile control of PFP morphology (glassy and α phases) in silicone-based polymer hosts. Fernando Junior Quites, Raquel Aparecida Domingues, René Alfonso Nome, Guilherme Ferreira Ferbonink and Teresa Dib Zambon Atvars.

Fotos de alguns dos premiados na cerimônia:



XII Encontro da SBPMat: Prêmio Bernhard Gross, para estudantes de graduação e pós-graduação, distinguirá os melhores trabalhos dos simpósios.

Trabalhos de estudantes de graduação ou pós-graduação apresentados em forma de painel ou apresentação oral nos simpósios do XII Encontro da SBPMat participarão do “Prêmio Bernhard Gross”. O prêmio distinguirá o melhor trabalho de cada simpósio e, entre esses finalistas, o melhor trabalho do XII Encontro.

Os estudantes premiados serão laureados com certificados. Além disso, os vencedores dos melhores trabalhos de cada simpósio receberão como prêmio a isenção da taxa de inscrição para participar do XIII Encontro da SBPMat em 2014, e o vencedor do melhor trabalho do evento ganhará o valor de R$ 1.000 concedido pela empresa Shimadzu.

Os prêmios serão entregues aos vencedores na cerimônia de encerramento do XII Encontro, no dia 3 de Outubro às 10h50. O não comparecimento do premiado à cerimônia implicará no cancelamento da premiação para o estudante.

Saiba sobre Bernhard Gross, um dos pioneiros da pesquisa em Física da Matéria Condensada no Brasil.