Biosensing platform simultaneously detects vitamin C and SARS-CoV-2

a biosensing platform based of a commercial transistor

By Mariah Lucas

UNIVERSITY PARK, Pa. — In the COVID-19 pandemic era, at-home, portable tests were crucial for knowing when to wear a mask or isolate at home. Now, Penn State engineering researchers have developed a portable and wireless device to simultaneously detect SARS-CoV-2, the virus that causes COVID-19, and vitamin C, a critical nutrient that helps bolster infection resistance, by integrating commercial transistors with printed laser-induced graphene.  

Shining a light on molecules: L-shaped metamaterials can control light direction

Scientific image taken by a microscope

Polarized light waves spin clockwise or counterclockwise as they travel, with one direction behaving differently than the other as it interacts with molecules. This directionality, called chirality or handedness, could provide a way to identify and sort specific molecules for use in biomedicine applications, but researchers have had limited control over the direction of the waves — until now.

Method for producing sulfur compounds in cells shows promise for tissue repair

lab image showing a needle dropping a sample into a structure

Sulfur-based compounds produced in our bodies help fight inflammation and create new blood vessels, among other responsibilities, but the compounds are delicate and break down easily, making them difficult to study. A team led by Penn State scientists have developed a new method to generate the compounds — called polysulfides — inside of cells, and the work could potentially lead to advances in wound treatment and tissue repair.

Dipanjan Pan

Dipanjan Pan

Dorothy Foehr Huck & J. Lloyd Huck Chair Professor in Nanomedicine
Professor of Materials Science and Engineering, Professor of Nuclear Engineering

205 Hallowell Building

Dual-energy harvesting device could power future wireless medical implants

Research Group Photo

By Matthew Carroll

Implantable biomedical devices — like pacemakers, insulin pumps and neurostimulators — are becoming smaller and utilizing wireless technology, but hurdles remain for powering the next-generation implants. A new wireless charging device developed by Penn State scientists could dramatically improve powering capability for implants while still being safe for our bodies, the researchers said.