News by Subject Chemistry & Physics

The Akay Lab biomedical research team at the University of Houston is reporting an improvement on a microfluidic brain cancer chip previously developed in their lab. The new chip allows quick assessment of the effectiveness of cancer drugs on brain tumors.

Concerns about the scarcity of lithium and other materials necessary in the now-ubiquitous lithium-ion batteries have recently driven many researchers to look for alternatives, such as sodium and potassium. Prof Shinichi Komaba from Tokyo University of Science, Japan, and his team have worked for over a decade on this topic. In his latest review article, he extensively discusses his findings on the recent advances, promises, and limitations of potassium-ion batteries.

Printed circuit boards are vital components of modern electronics. However, once they have served their purpose, they are often burned or buried in landfills, polluting the air, soil and water. Most concerning are the brominated flame retardants added to printed circuit boards to keep them from catching fire. Now, researchers reporting in ACS Sustainable Chemistry & Engineering have developed a ball-milling method to break down these potentially harmful compounds, enabling safer disposal.

Structural colors appear because the imprinted pattern on a surface changes the wavelengths of light. Chinese scientists have introduced an azopolymer that allows the imprinting of nanopatterns in a novel room-temperature lithographic process. A key aspect of the technique is the light-induced phase change of a novel azopolymer, explains the study published in the journal Angewandte Chemie. The process relies solely on light regulation and allows nanoimprinting even on flexible substrates.