Traditional leather manufacturing requires the use of several toxic chemicals, such as halogenated flame retardants or organic antimicrobial solvents, which cause pollution. Now, researchers are testing an eco-friendly alternative: silver-titanium nanoparticles.
Scientists have found unusual properties of silicon nanoparticles. They have shown that at normal conditions silica nanoparticles are enriched in oxygen. Such nanoparticles are magnetic and contain reactive oxygen species. This may explain the known high toxicity and carcinogenicity of silica dust.
A multi-institutional research team has developed a new electroactive polymer material that can change shape and size when exposed to a relatively small electric field. The advance overcomes two longstanding challenges regarding the use of electroactive polymers to develop new devices, opening the door to a suite of applications ranging from microrobotics to designer haptic, optic, microfluidic and wearable technologies.
Engineers have developed a cloaking device for microscopic photonic integrated devices - the building blocks of photonic computer chips that run on light instead of electrical current - in an effort to make future chips smaller, faster and consume much less power.
With a thickness of just 1.3 nanometers - 10 times smaller than the current standard silicon diodes - this device could be used in the Internet of Things, smart devices, wearable electronics and photoelectronics.
The risk of catching fatal Legionnaires' disease from air conditioning units has been dramatically reduced, thanks to a new biophotonic light sensor that spots Legionella bacteria 240 times quicker than methods used today.
Researchers are running structural studies using extensive numerical simulations on a supercomputer to study the motion of more than 500 atoms - in an effort to determine the forces on each atom and the total energy via density functional calculations.
With size comparable to a blood cell, those tiny robots have the potential to be injected into patients' bodies, helping surgeons to remove tumors and enabling more precise engineering of targeted medications.