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Self-Built Protein Coatings Could Improve Biomedical Devices

Engineers explore protein self-assembly as improved coating process Fouling is a natural phenomenon that describes the tendency of proteins in water to adhere to nearby surfaces. It’s what causes unwanted deposits of protein to form during some food production or on biomedical implants, causing them to fail. Researchers at Rensselaer Polytechnic Institute are harnessing this process, which is typically considered a persistent challenge, to develop a versatile and accessible approach for modifying solid surfaces. “The goal of this work is to develop a method that is tolerant of pretty much any material and geometry by which we can modify surfaces that are normally hard to modify,” said R. Helen Zha, an assistant professor of chemical and biological engineering and member of the Center for Biotechnology and Interdisciplinary Studies (CBIS) at Rensselaer. She is leading this research with the support of a more than $592,000 National Science Foundation Faculty Early Career Develo

Are lakes emitting more carbon dioxide in a warming world?

 E-Mail IMAGE: New research will help to quantify the vital role that lakes play in the global carbon cycle. view more  Credit: Rensselaer Polytechnic Institute TROY, N.Y. As the planet heats up, are lakes releasing more carbon dioxide into the atmosphere? With a prestigious National Science Foundation Faculty Early Career Development (CAREER) grant, researcher Kevin Rose will examine large-scale patterns in concentrations of carbon dioxide (CO2) and dissolved oxygen to answer the question. Dissolved oxygen levels in freshwater lakes are declining, indicating a potential increase in CO2 emissions. Theoretically, freshwater life links CO2 and dissolved oxygen to one another. Algae and plants consume CO2 and produce dissolved oxygen, while animals like zooplankton, fish, and bacteria consume dissolved oxygen and produce CO2. But for many reasons, the relationship between the two measurements has not been rigorously tested.

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