The development of stable biomimetic interfaces remains challenging because natural cell membranes often lose structural integrity and biological activity when incorporated into artificial sensing systems. In a recent study published in the Journal of Bioresources and Bioproducts, researchers developed a chitosan hydrogel-stabilized red blood cell membrane (RBCM) interface for robust electrochemical detection of environmental contaminants. The chitosan-derived conductive hydrogel served as a multifunctional matrix, using its three-dimensional polycationic network and abundant amino groups to electrostatically anchor RBCMs while preserving membrane fluidity and acetylcholinesterase activity. The incorporation of carboxylated multi-walled carbon nanotubes further improved electron transfer efficiency without compromising biocompatibility. The resulting biomimetic interface retained 85.8% of its initial electrochemical response after seven days of continuous operation and enabled sensitive detection of organophosphate pesticides in real agricultural samples, including apples, oranges, and tomatoes. The study demonstrates the potential of natural polysaccharide-based materials as versatile platforms for constructing stable biomembrane composites in environmental sensing.

The Facility for Rare Isotope Beams, or FRIB, at Michigan State University, in collaboration with Argonne National Laboratory, was chosen to receive a Genesis Mission Phase I award from the U.S. Department of Energy. The project will develop artificial intelligence, or AI, tools — specifically, physics-informed “digital twins” — that could transform how heavy-ion accelerators and isotope separators are operated. 

A scientific team led by Facility for Rare Isotope Beams, or FRIB, researchers identified the origin of a mysterious excess of low-energy gamma rays emitted by the nucleus zinc-70. They found that the excess is caused by magnetic transitions within the nucleus. The study, “Magnetic Character of the Low-Energy Enhancement in ⁷⁰Zn,” published in Nature, sheds light on a long-standing puzzle in nuclear physics and has far-reaching implications for astrophysics. 

It’s been said that a finely tuned ear knows the size and shape of a piano by merely listening to the instrument’s notes. An international team of physicists has now devised an analogous approach to detect the universe’s hidden particles at high energies—opening a potential pathway for discovering new laws of physics.

Collective motion of microscopic oscillators enables a new form of physical computing: Researchers from Konstanz and Stuttgart bring “reservoir computing” to life.

For decades, selenium has been recognized as an essential micronutrient, and glutathione peroxidase 4 (GPX4)—a selenium-containing enzyme—has been widely regarded as the central guardian against ferroptosis, an iron-dependent form of regulated cell death driven by lipid peroxidation. But is GPX4 the whole story?