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Nanomaterials May 2, 2022

New process aims to strip ammonia from wastewater

A dash of ruthenium atoms on a mesh of copper nanowires could be one step toward a revolution in the global ammonia industry that also helps the environment.

Bio & Medicine May 2, 2022

Nanotechnology enables visualization of RNA structures at near-atomic resolution

We live in a world made and run by RNA, the equally important sibling of the genetic molecule DNA. In fact, evolutionary biologists hypothesize that RNA existed and self-replicated even before the appearance of DNA and the ...

Nanophysics Apr 21, 2022

Unexpected light behavior may be harnessed to improve optical communications and sensors

Shine a flashlight into a murky pond water and the beam won't penetrate very far. Absorption and scattering rapidly diminishes the intensity of the light beam, which loses a fixed percentage of energy per unit distance traveled. ...

Nanophysics Apr 21, 2022

Microdrones with light-driven nanomotors

A hand-held laser pointer produces no noticeable recoil forces when it is "fired"—even though it emits a directed stream of light particles. The reason for this is its very large mass compared to the very small recoil impulses ...

Nanomaterials Apr 21, 2022

Water processing: Light helps degrade hormones

Micropollutants in water often are hormones that accumulate in the environment and may have negative impacts on humans and animals. Researchers of Karlsruhe Institute of Technology (KIT) and Leibniz Institute of Surface Engineering ...

Bio & Medicine Apr 20, 2022

Nanotechnology enables single-cell sorting by function

For nearly 40 years, drugmakers have used genetically engineered cells as tiny drug factories. Such cells can be programmed to secrete compounds that yield drugs used to treat cancer and autoimmune conditions such as arthritis.

Bio & Medicine Apr 18, 2022

Bacterial soundtracks revealed by graphene membrane

Have you ever wondered if bacteria make distinctive sounds? If we could listen to bacteria, we would be able to know whether they are alive or not. When bacteria are killed using an antibiotic, those sounds would stop—unless ...

Nanophysics Apr 5, 2022

New parity-time symmetric system opens up range of wavelengths to researchers, engineers

Researchers from the labs of Lan Yang, the Edwin H. & Florence G. Skinner Professor, and Xuan "Silvia" Zhang, associate professor, at the McKelvey School of Engineering at Washington University in St. Louis, have developed ...

Bio & Medicine Apr 5, 2022

Sugar-coated nanoparticles target macrophages, reverse pulmonary fibrosis 

Scientists at the University of Illinois Chicago have developed a treatment for pulmonary fibrosis by using nanoparticles coated in mannose—a type of sugar—to stop a population of lung cells called macrophages that contribute ...

Nanophysics Apr 1, 2022

Reducing nitroarenes to amines without need for extreme conditions or toxic reagent production

A team of researchers affiliated with entities in the Czech Republic, Greece and Germany has developed a way to reduce nitroarenes to amines that does not produce toxic reagents and does not involve extreme conditions. They've ...

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