Biomedical Engineering

By Sarah Small

Acoustic waves may be able to control how particles sort themselves. While researchers have been able to separate particles based on their shape — for example, bacteria from other cells — for years, the ability to control their movement has remained a largely unsolved problem, until now. Using ultrasound technology and a nozzle, Penn State researchers have separated, controlled and ejected different particles based on their shape and various properties.  

By Jennifer Matthews

Researchers at Penn State are designing a new wireless rechargeable battery for biomedical electronics, such as cardiac pacemakers, that will allow them to be charged and managed without the need for invasive surgery.

By Sarah Small

UNIVERSITY PARK, Pa. — For wearable electronics to live up to their promise for health care monitoring, they need to do at least two things: transform from rigid to soft to accommodate changing structural needs, and heal their own normal wear-and-tear. With the help of liquid metal and specialized polymers, researchers have developed sensors that can do both.  

By Ashley WennersHerron

UNIVERSITY PARK, Pa. — For mere dollars, a Penn State-led international collaboration has fabricated a self-powered, standalone sensor system capable of monitoring gas molecules in the environment or in human breath. The system combines nanogenerators with micro-supercapacitors to harvest and story energy generated by human movement. 

By Mariah R. Lucas

UNIVERSITY PARK, Pa. — Neurons, which are responsible for producing the signals that ultimately trigger an action like talking or moving a muscle, are built and maintained by classes of motor proteins that transport molecular cargo along elongated tracks called microtubules. A Penn State-led team of researchers uncovered how two main groups of motor proteins compete to transport cargo in opposite directions between the cell body and the synapse in neurons.  

Editor’s note: A version of this press release appeared on The University of Texas at Austin’s site. 

By Mary Fetzer

By Adrienne Berard

UNIVERSITY PARK, Pa. — Waaahhh! While babies have a natural mechanism for alerting their parents that they need a diaper change, a new sensor developed by researchers at Penn State could help workers in daycares, hospitals and other settings provide more immediate care to their charges.

By Mary Fetzer

UNIVERSITY PARK, Pa. — A soldier suffers a serious gunshot wound on a remote battlefield or a machinist has a work accident and gets stuck in traffic on the way to the hospital. Secondary, uncontrolled bleeding from traumatic injury is the leading cause of death of Americans from ages one to 46.  

By Mariah R. Lucas

UNIVERSITY PARK, Pa. — Heparin has long been used as a blood thinner, or anticoagulant, for patients with blood clotting disorders or after surgery to prevent complications. But the medication remains difficult to dose correctly, potentially leading to overdosing or underdosing.

By Mary Fetzer

Combining machine learning with multimodal electrochemical sensing can significantly improve the analytical performance of biosensors, according to new findings from a Penn State research team. These improvements may benefit noninvasive health monitoring, such as testing that involves saliva or sweat. The findings were published this month in Analytica Chimica Acta.