Bacteria-killing drills get an upgrade

Nanowerk  June 1, 2022 An international team of researchers USA – Rice University, Spain) discovered a distinctive antibacterial therapy that uses visible (405 nanometers) light-activated synthetic molecular machines (MMs) to kill Gram-negative and Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus, in minutes, vastly outpacing conventional antibiotics. They rapidly eliminate persister cells and established bacterial biofilms. The antibacterial mode of action of MMs involves physical disruption of the membrane. By permeabilizing the membrane, MMs at sublethal doses potentiate the action of conventional antibiotics. Repeated exposure to antibacterial MMs is not accompanied by resistance development. Therapeutic doses of MMs mitigate mortality associated with […]

Microscopic computers: The wires of the future may be made of molecules

EurekAlert  June 23, 2020 An international team of researchers (Germany, Denmark, USA – UTAustin, Japan) believe that future computers must transition to molecular dimensions. In electronic devices made from molecules the molecular wires must have satisfactory conducting properties and stability. They are studying neutral molecules which can recognize and find each other in solution, which form a well-defined three-dimensional structure and have semiconductor properties. They showed that by inserting different components they can modify the conductivity and thereby control the system…read more. TECHNICAL ARTICLE