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“#Shock to bacteria activates nature’s electrical grid” Credit: Pixabay/CC0 Public Domain The ocean floor and the ground beneath our feet are riddled with tiny nanowires—1/100,000th the width of a human hair—created by billions of bacteria that can generate electric currents from organic waste. In new research published Aug. 17 in the journal Nature Chemical Biology,…
“#Micro- and nanoplastics detectable in human tissues” Credit: Unsplash/CC0 Public Domain Plastic pollution of land, water and air is a global problem. Even when plastic bags or water bottles break down to the point at which they are no longer an eyesore, tiny fragments can still contaminate the environment. Animals and humans can ingest the…
“#Plant health management by flexible electronics” Integrated flexible device attached onto the lower epidermis of the leaf to monitor transpiration processes. Credit: Lu et al. ACS Nano (2020), DOI: 10.1021/acsnano.0c03757 The emergence of biotic and abiotic stresses poses potential impairment on plant growth and yield. Accurate monitoring and assessment of plant health status is therefore…
“#How to get more cancer-fighting nanoparticles to where they are needed” Credit: CC0 Public Domain University of Toronto Engineering researchers have discovered a dose threshold that greatly increases the delivery of cancer-fighting drugs into a tumor. Determining this threshold provides a potentially universal method for gauging nanoparticle dosage and could help advance a new generation…
“#A titanate nanowire mask that can eliminate pathogens” Credit: Swoxid SA Filter ‘paper’ made from titanium oxide nanowires is capable of trapping pathogens and destroying them with light. This discovery by an EPFL laboratory could be put to use in personal protective equipment, as well as in ventilation and air conditioning systems. As part of…
“#Gold nanosensor spots difference between dengue, Zika” Distinguishing between dengue and Zika viruses is complicated because of their genetic similarities. Credit: Peter Ilicciev/Fundación Oswaldo Cruz (Creative Commons) A new class of nanosensor developed in Brazil could more accurately identify dengue and Zika infections, a task that is complicated by their genetic similarities and which can…
“#How smart, ultrathin nanosheets go fishing for proteins” The protein complex to be examined (yellow) is attached to the smart nanosheet via a nickel complex with the aid of a marker (red chain with pentagons). Unwanted proteins (gray) are repelled by the hydrogel (black grid). After freezing the entire structure, including a thin film of…
“#A mechanical way to stimulate neurons” A scanning electron microscope image of cultured neural cells shows the team’s newly developed nanodiscs (colored area) arrayed along the cell surface, where they can exert enough force to trigger a response. Credit: Massachusetts Institute of Technology In addition to responding to electrical and chemical stimuli, many of the…
“#’Nanocage’ tool untangles (molecular) spaghetti” University of Vermont post-doctoral researcher Mona Sharafi helped build a nanoscale tool that can untie knots of protein, plastic or other polymers. Called a “nanocage,” the advance in chemistry promises to help create new kinds of industrial and biological materials. Credit: Joshua Brown/UVM A team of scientists at the University…
“#A safe and powerful treatment for the body against deadly radiation” Schematic illustration of highly catalytic CeO2/Mn3O4 nanocrystals preventing acute radiation syndrome. Credit: IBS Despite the wide application of radiation in diagnostics and treatments, there is still no magic material to protect people from radiation exposure. Though Amifostine is developed as a radioprotectant, the FDA…