Category: U.S. National Science Foundation
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Recharging mitochondria – nanoflowers offer a new way to simulate energy production to improve aging ailments
(Funded by the National Institutes of Health and the National Science Foundation)
Researchers from Texas A&M University have developed molybdenum disulfide nanoflowers that can stimulate mitochondrial regeneration, helping cells generate more energy. According to Akhilesh Gaharwar, one of the researchers involved in this study, the nanoflowers could offer new treatments for muscle dystrophy, diabetes, and neurodegenerative disorders by increasing ATP production, mitochondrial DNA, and cellular respiration. “This discovery is unique,” said Vishal Gohil, another researcher involved in the study. “We are not just improving mitochondrial function; we are rethinking cellular energy entirely. The potential for regenerative medicine is incredibly exciting.” -
Harnessing exosomes and hydrogels for advanced diabetic wound healing
(Funded by the U.S. Department of Energy and the National Science Foundation)
Researchers from New York University have begun to explore exosomes, tiny membrane-bound vesicles, as promising tools for wound healing. These nanovesicles carry various biological materials – nucleic acids, proteins, and lipids – allowing them to mediate intercellular communication and influence processes such as tissue repair. By combining them with hydrogels, which are composed of networks of cross-linked polymers, the researchers showed that hydrogel-exosome combinations consistently lead to faster wound closure than either hydrogels or exosomes used alone. -
Designing a better water filter: A fabric-like filter to remove tiny plastics and lead from drinking water
(Funded by the National Science Foundation)
Researchers have developed an innovative nanofibrous membrane to remove microplastics from drinking water. Water filters on the market today can remove some contaminants, but they’re not designed to capture microplastics. The filter membrane is made from polyvinyl alcohol fibers, which are polymers currently used in biomedical applications. The team chose the material because it is low-cost and is not toxic to humans, animals, or plants. “The idea is to design a filter that can be attached to a faucet so it can remove microplastic and lead at the same time from tap water,” said Maryam Salehi, one of the researchers involved in this study. -
Flexible Circuits Made With Silk And Graphene on The Horizon
(Funded by the U.S. Department of Energy and the National Science Foundation)
Researchers from the U.S. Department of Energy’s Pacific Northwest National Laboratory and Lawrence Berkeley National Laboratory; the University of Washington; North Carolina State University; and Xiamen University in China have achieved a uniform two-dimensional (2D) layer of silk protein fragments on graphene, a carbon-based material useful for its excellent electrical conductivity. This combination of materials—silk-on-graphene—could form a sensitive, tunable transistor highly desired by the microelectronics industry for wearable and implantable health sensors. The researchers also see potential for their use as a key component of memory transistors or “memristors,” in computing neural networks. Memristors allow computers to mimic how the human brain functions. -
Novel coupled nanopore platform offers greater precision for detecting molecules
(Funded by the National Institutes of Health and the National Science Foundation)
Researchers from the University of Pennsylvania have demonstrated a new kind of nanopore platform that consists of two or more nanopores stacked just nanometers apart, allowing for more precise detection and control of DNA as it wiggles through. “With current platforms, when molecules like DNA are placed near the nanopores, it’s sort of like having spaghetti in a pot—tangled and difficult to work with, let alone guiding through one hole,” explains Dimitri Monos, one of the scientists involved in this study. “So, typically, researchers need to use proteins to capture, unwind, and straighten it, which, while effective, has many limitations. But with this new design, we’re essentially guiding molecules through two coupled nanopores in the material, providing a controlled, smoother passage of molecules.”
