B-MRS live on materials research and COVID-19.


B-MRS live gathered 4 panelists from different points of the country  and around 100 participants.
B-MRS live gathered 4 panelists from different points of the country and around 100 participants.

In several Brazilian universities, multidisciplinary scientific teams are currently working to deliver to society, in the shortest possible time, solutions to help combat COVID-19. Beyond generating publications, and even knowledge, the main objective of these works is to save lives.

The materials research community is actively participating in some of these challenges, which could generate important solutions such as rapid, reliable diagnostic tests and virucidal materials for ventilator valves, as well as personal protective equipment (PPEs) produced in Brazil.

In the early afternoon of May 7, in its first live transmission, B-MRS brought together four researchers who are working on these challenges. These scientists told an audience of about 100 how they organized to respond to this emergency situation, and what may be the social impact of their projects. The reports showed the importance of continuous investment in research and collaboration between individuals and institutions.

The discussion was mediated by Carlos César Bof Bufon, researcher and head of the Devices Division at the Brazilian Nanotechnology Laboratory (LNNano/CNPEM). Bufon is part of the organizing committee of the next annual B-MRS event, the XIX B-MRS Meeting.

The online discussion panel, broadcasted on B-MRS’s Zoom platform and Facebook, was held within the Brazilian Virtual March for Science, an event promoted by Brazilian Society for the Progress of Science (SBPC) with the aim of calling attention to the importance of science.

National tests for COVID-19 diagnosis and detection of antibodies.

The scientists Mariana Roesch Ely (professor at the University of Caxias do Sul, UCS) and Talita Mazon (researcher at CTI Renato Archer) talked about their respective works to develop sensors for COVID-19 diagnostic tests, which they are carrying out with the support of specialists in the Chemistry, Electronics, Informatics, Physics, Materials, Biology and Health areas.

Both sensors are point-of-care instruments. This expression designates miniaturized devices that allow performing tests anywhere, without the need for laboratories or other equipment, and receiving the result within a few minutes.

According to the researchers, the sensors they are developing will be able to detect those infected with COVID-19 within the first day of infection – a characteristic that none of the diagnostic techniques currently used in the country allows. Finally, they said that the new sensors will provide more accurate results (with fewer false negatives or positives) than many of the rapid tests that are currently available on the market.

In both works, the development of the sensors is quite advanced. However, the two scientists concur in stating that 6 months is a reasonable time for a product to be ready, tested with respect to the RT-PCR method (the most reliable at the moment) and viable at an industrial scale.

In her statement, Professor Mariana said that since 2012 she has been working on developing sensors based on magnetoelastic technology, initially aimed at the detection of bacteria and yeasts. When Brazil experienced the outbreak of the Zika virus in 2015, the scientist and her entire research network directed their work towards this virus, gaining experience in detecting this type of organisms, which are much smaller than bacteria. According to Professor Mariana Roesch Ely, the magnetoelastic sensor would be able to detect both the viral particle (from the beginning of the infection) and the antibodies produced by the person who is or has been infected. Thus, it could be an important tool to define measures and protocols in all phases of the pandemic, including the resumption of face-to-face economic activities.

Researcher Talita Mazon said that she has worked five years on integrating ceramic and biological materials to develop point-of-care sensors, which, in her view, are well adapted to the Brazilian reality, given that a large part of the population lives far away from laboratories and hospitals. With the experience accumulated during that time, the scientist was able to finalize in 2019, together with a multidisciplinary team, an electrochemical sensor that detects the Zika virus accurately and within a few minutes. She is currently adapting this platform to detect Sars-COV-2 (the virus that causes the COVID-19 disease).

Thinking about the possibility of producing the sensor without the need for imported inputs, mainly at an industrial scale, the researcher looked for local partners and adapted the sensor to the biological inputs that could be produced in Brazil. In addition, she is establishing a partnership with the public microelectronics company CEITEC, located in the state of Rio Grande do Sul, whose installed capacity would allow it to manufacture the chips for all the sensors needed to test the Brazilian population in the next phases of the pandemic. “We have to join forces to develop solutions that can actually be met by the country’s industrial capacity,” said Professor Talita Mazon.

Virucidal materials for masks and respirators

In the panel, Dachamir Hotza, professor at the Federal University of Santa Catarina (UFSC), told of the individual and group efforts carried out to bring responses to society during the COVID-19 pandemic. In one of these works, the researcher and his collaborators are carrying out the physical and biochemical characterization of masks used in hospitals in order to define precisely when the masks lose their functionality and need to be replaced. In addition, working with other institutions and a regional company he previously collaborated with, the researcher is advancing in the development of fabrics with virucidal activity. One difficulty that has not yet been overcome, said the researcher, was accessing a laboratory that has the appropriate level of biosafety procedures to perform tests with the new coronavirus.

Active materials in the elimination of the Sars-COV-2 virus were also addressed by Professor Petrus Santa Cruz, from the Federal University of Pernambuco (UFPE). The scientist told how he accumulated knowledge generated over decades, available in articles and patents from his research group, for his work related to fighting the pandemic. One example relates to an emergency action aimed at providing the public health system with respirator valves that could be used in patients infected with COVID-19 in a phase prior to intubation, given situations of high occupancy rates of ICU beds and mechanical ventilators. Professor Petrus’ interdisciplinary team, which includes software experts, was able to overcome the challenge of manufacturing these valves on 3D printers with the necessary surface roughness to prevent the bacterial adherence (initially bacteria and, probably, also viruses). In addition, the group is working to give this and other materials an active role in eliminating the virus, using nanotechnology to break through the wall that protects the viral RNA.

Continuous investments for fast results

The four panelists highlighted that the capacity of science to quickly respond to society in times of emergency is the result of many years of efforts and investments. “There is no on/off button for science, because it is made up of the accumulation of knowledge,” said Professor Petrus.

On the other hand, with successive cuts to the CTI budget, many Brazilian researchers have developed strategies to circumvent the difficulties and continue working. It is a characteristic of the Brazilian scientist to adapt to adverse situations, commented Professor Dachamir.

The panelists’ statements showed that a combination of expertise and persistence, on the one hand, and creativity and reinvention, on the other, is part of the method they are applying in their work related to fighting the pandemic.

Another aspect the scientists highlighted as fundamental to the success of emergency projects was the work in multidisciplinary collaborative networks, including with companies that could produce solutions at an industrial scale. “This is the time to intersect everyone’s expertise to give a quick response to society,” said Professor Mariana Roesch Ely.

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.