Scientists have succeeded in propelling microvehicles against a fluid flow using ultrasound. In future, these tiny vehicles are set to be introduced into the human bloodstream, thereby revolutionising the field of medicine.
Nanoparticles used in drug delivery systems, bioimaging, and regenerative medicine migrate from tissues to lymphatic vessels after entering the body, so it is necessary to clarify the interaction between nanoparticles and lymphatic vessels.
An electrode material with modified surface atoms generates more electrical current, which drives the sunlight-powered reactions that split water into oxygen and hydrogen - a clean fuel.
Researchers demonstrate composite materials with exceptional EMI shielding in the GHz and sub-THz frequency ranges while remaining electrically insulating. The composites use unusual fillers - chemically exfoliated bundles of quasi-one-dimensional van der Waals materials. The exceptional current conduction properties combined with extremely large aspect ratio of these composites couple strongly to high-frequency RF radiation while remaining electrically insulating in DC measurements.
Researchers have been developing 'active' materials that have the ability to move on their own. Now, they have taken the next step by showing that the movement in one such active material - liquid crystals - can be harnessed and directed.
