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Often treated as waste from the pulp and paper industry, lignin, a polymer responsible for the rigidity of plant cell walls, has increased the stability and effectiveness of herbicide nanoparticles. study published in the journal ACS Sustainable Chemistry and Engineering and featured on its cover showed that a fraction obtained from lignin, an organic polymer responsible for the rigidity of plant cell walls, was able to improve the performance of nanoparticles with herbicide. The study was [...]

Researchers at the Federal University of São Carlos used pieces of cork and lasers to create a mechanism that detects the presence of the substance, which has potential carcinogenic effects, in mineral water, orange juice, and wine. A team of researchers from the Federal University of São Carlos (UFSCar) in the state of São Paulo, Brazil , has developed a sensor that can identify sodium nitrite (NaNO2) in various beverages, including mineral water, orange juice, and [...]

Study in hamsters paves way for development of nasal sprays and other products to fight several viral diseases, including HIV/AIDS, shingles and influenza. Silver nanoparticles produced by the fungus Trichoderma reesei could become important allies in the prevention and treatment of COVID-19. Tests carried out on hamsters showed that they not only inhibited the infection but also reduced the viral load in the lungs, easing inflammation in the rodents. The study, supported by FAPESP, paves [...]

An article published in the journal Food Research International describes a scientific study in which nanoencapsulated anthocyanins passed through the digestive system without being degraded, were absorbed efficiently, and reached more organs and tissues than unencapsulated anthocyanins, increasing the benefits to the organism. The study was supported by FAPESP via three projects (13/07914-8, 22/12834-2 and 23/01396-7). Anthocyanins are pigments found in most species in the plant kingdom and [...]

Researchers at the University of São Paulo (USP) in Brazil have developed a novel nanotechnology-based solution for the removal of micro- and nanoplastics from water. An article on the research, which was supported by FAPESP, is published in the journal Micron. Tiny plastic particles are ubiquitous in the world today and may currently be one of the most important environmental problems, after the climate emergency and the accelerating extinction of species and ecosystems. [...]

Luminescence refers to the result of a process in which an object absorbs light at one wavelength and then re-emits it at another wavelength. Through light absorption, electrons in the ground state of the material are excited to a higher energy state. After a certain amount of time characteristic of each excited state, the electrons decay to lower energy states, including the ground state, and emit light. The phenomenon is used in a wide array of technological applications involving highly [...]

An article published in the Journal of Controlled Release details the results of a cross-border scientific collaboration that has developed an alternative for the treatment of solid tumors based on inhibition of the inflammatory tumor microenvironment (TME). Solid tumors are difficult to treat, partly owing to cells and substances in the TME that prevent drugs from penetrating and stop the patient's own immune system from combating the tumor. "These cells and molecules often fuel [...]

Imaging the hot turbulence of aircraft propulsion systems may now be possible with sturdy sheets of composite materials that twist light beams, according to research led by the University of Michigan and Air Force Research Laboratory. The sheets were produced with a new manufacturing method that opens possibilities beyond aircraft design, as it enables new classes of materials to be used in polarization optics. While the team demonstrated high temperature tolerance, new mechanical, [...]

Researchers at the University of São Paulo (USP) in Brazil have developed a bioelectronic chip that simultaneously detects vitamins C and D in body fluids. It is flexible and easy to use, and can be adapted for use in a wearable device to assist with a personalized diet. Details are described in an article published in ACS Applied Nano Materials, and featured on the cover of the journal. Vitamins C and D are micronutrients that play a vital role in the immune system as participants in [...]