Seeing like a butterfly: Optical invention enhances camera capabilities

Two men holding a camera sensor

Butterflies can see more of the world than humans, including more colors and the field oscillation direction, or polarization, of light. This special ability enables them to navigate with precision, forage for food and communicate with one another. Other species, like the mantis shrimp, can sense an even wider spectrum of light, as well as the circular polarization, or spinning states, of light waves. They use this capability to signal a “love code,” which helps them find and be discovered by mates.

Self-assembling, highly conductive sensors could improve wearable devices

Image of wearable sensor

By Sarah Small

To advance soft robotics, skin-integrated electronics and biomedical devices, researchers at Penn State have developed a 3D-printed material that is soft and stretchable — traits needed for matching the properties of tissues and organs — and that self-assembles. Their approach employs a process that eliminates many drawbacks of previous fabrication methods, such as less conductivity or device failure, the team said.  

They published their results in Advanced Materials.  

New wearable sensor makes continuous analysis of sweat possible, researchers say

Researcher holding a wearable sensor

By Andrew Krebs

Continuous monitoring of sweat can reveal valuable information about human health, such as the body’s glucose levels. However, wearable sensors previously developed for this purpose have been lacking, unable to withstand the rigors or achieve the specificity needed for continuous monitoring, according to Penn State researchers. Now, the research team has created a novel wearable patch that may be up to the task.

Fellowship gives undergraduates chance to do research with real impact

By Jamie Oberdick

UNIVERSITY PARK, Pa. — One of the more innovative energy-saving tools at Penn State was not implemented by a faculty member, employee, or graduate student. Instead, it was developed by undergraduate students who are part of an innovative and unique research fellowship offered by the Materials Research Institute (MRI). 

Growing tomorrow’s semiconductor chips in the materials garden

terrones holds a sampl

In some ways, Mauricio Terrones is a gardener. An Evan Pugh University Professor and The Penn State Verne M. Willaman Professor of Physics, Terrones does not grow flowers or vegetables, but instead, one- or few-atom-thick two-dimensional (2D) materials. Specifically, creating materials with specific properties. The first 2D material ever created was graphene, and Terrones was a pioneer in developing 2D materials beyond graphene such as molybdenum disulfide (MoS2) and Tungsten disulfide (WS2). These are layered 2D materials, monolayered, bi-layered, tri-layered or more.

Improved, self-healing medical sensor responds to temperature, adapts to skin

image of a sensor

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.  

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