Sensors

Wearable health monitors are designed to move with the body. But for many devices, movement creates a problem: The more a person bends, stretches, reaches or runs, the harder it can be for the device to keep a stable wireless connection. Penn State researchers and international collaborators set out to solve that problem by developing a soft, stretchable antenna that can keep working even when pulled in different directions.

By Ty Tkacik

Engineers at Penn State are blending art and science to create cute, paint-on tattoos that could help spot heart attacks early, power robotic prosthetics and read brain waves — all within a colorful, customizable system that can be easily washed away or reapplied.

By Jamie Oberdick

More accurate navigation systems and improved wireless communications may not come from traditional electronics, but rather from atoms. Researchers at Penn State and the National Institute of Standards and Technology (NIST) have developed a new way to build tinier, smarter glass sensors filled with highly precise and stable atoms.

By Emily Liu

By Jamie Oberdick

UNIVERSITY PARK, Pa. — A vital tool for healthcare practitioners, electroencephalography (EEG) systems measure electrical activity in the brain through electrodes placed on the scalp, but getting reliable readings can be surprisingly difficult. Hair interferes with contact between the electrodes and skin, and the gels used to improve those connections often dry out over time, weakening signal quality.

A group of researchers at Penn State recently developed a wearable device capable of accurately tracking chloride ion levels in sweat, which is essential for evaluating hydration status and health conditions like cystic fibrosis and more.

By Sarah Small

By Jamie Oberdick

A new skin-like sensor developed by an international team led by researchers at Penn State could help doctors monitor vital signs more accurately, track healing after surgery and even help patients with bladder control issues. 

The sensor, which can be worn on the skin or implanted inside the body, can measure both physical movement and electrical signals. It is made from soft, stretchable materials that mimic human skin and is designed to work for long periods of time without losing performance. 

By Adrienne Berard

Saying one thing while feeling another is part of being human, but bottling up emotions can have serious psychological consequences like anxiety or panic attacks. To help health care providers tell the difference, a team led by scientists at Penn State has created a stretchable, rechargeable sticker that can detect real emotions — by measuring things like skin temperature and heart rate — even when users put on a brave face.

By Jamie Oberdick

A tiny, soft, flexible robot that can crawl through earthquake rubble to find trapped victims or travel inside the human body to deliver medicine may seem like science fiction, but an international team led by researchers at Penn State are pioneering such adaptable robots by integrating flexible electronics with magnetically controlled motion.