biosensors tagged posts

Thin, Stretchable ‘Biosensors could make Surgery Safer

Biosensor
The new biosensors allow for simultaneous recording and imaging of tissues and organs during surgical procedures. In this photo, researchers attached the biosensor to the heart of a pig that was obtained commercially. Credit: Bongjoong Kim, Purdue University

A research team from Los Alamos National Laboratory and Purdue University have developed bio-inks for biosensors that could help localize critical regions in tissues and organs during surgical $operations.

“The ink used in the biosensors is biocompatible and provides a user-friendly design with excellent workable time frames of more than one day,” said Kwan-Soo Lee, of Los Alamos’ Chemical Diagnostics and Engineering group.

The new biosensors allow for simultaneous recording and imaging of tissues and organs during surg...

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No batteries? No sweat! Wearable Biofuel Cells now produce Electricity from Lactate

No batteries? No sweat! Wearable biofuel cells now produce electricity from  lactate | EurekAlert! Science News

Scientists develop biofuel cells that can power wearable electronics purely by using human sweat. Wearable electronic devices and biosensors are great tools for health monitoring, but it has been difficult to find convenient power sources for them. Now, a group of scientists has successfully developed and tested a wearable biofuel cell array that generates electric power from the lactate in the wearer’s sweat, opening doors to electronic health monitoring powered by nothing but bodily fluids.

It cannot be denied that, over the past few decades, the miniaturization of electronic devices has taken huge strides...

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A Better Pen-and-Ink system for Drawing Flexible Circuits

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A pen containing conductive ink can draw circuits on a variety of surfaces — even a loofah (seen here).
Credit: Adapted from ACS Applied Electronic Materials 2020, DOI: 10.1021/acsaelm.0c00866

Conductive ink is a great tool for printing flexible electronic circuits on surfaces. But these inks can be costly, they do not work on some materials, and devices to apply them can plug up. Now, scientists report in ACS Applied Electronic Materials that they have developed inexpensive conductive inks for clog-free ballpoint pens that can allow users to “write” circuits almost anywhere — even on human skin.

Flexible electronics are widely used in applications such as biosensors, electronic skin and energy storage...

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Diagnostic Biosensor quickly detects SARS-CoV-2 from Nasopharyngeal Swabs

An artist’s rendering above shows a new test that quickly detects SARS-CoV-2 (spheres) through binding to antibodies (Y-shapes) on a field-effect transistor.
Adapted from ACS Nano 2020, DOI: 10.1021/acsnano.0c02823

Researchers have developed a field-effect transistor-based biosensor that detects SARS-CoV-2 in nasopharyngeal swabs from patients with COVID-19, in less than one minute.

According to many experts, early diagnosis and management are critical for slowing the spread of SARS-CoV-2, the new coronavirus that causes COVID-19. Therefore, the race is on to develop diagnostic tests for the virus that are faster, easier and more accurate than existing ones...

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