AUG 21, 2022 10:00 AM PDT

Biomaterial Inks Can Imitate Human Tissue Characteristics

Credit: Pixabay

In a recent study published in ACS Nano, a team of researchers at Texas A&M University have designed a new class of biomaterial inks known as shear-thinning hydrogels that imitate the endemic and highly conductive properties of human tissue. This research opens the potential for expanding the field of flexible and wearable electronics, specifically pertaining to the ink being used in 3D-printing flexible bioelectronics.

"The impact of this work is far-reaching in 3D printing," said Dr. Akhilesh Gaharwar, Associate Professor in the Department of Biomedical Engineering at Texas A&M University, Presidential Impact Fellow, and a co-author on the study. "This newly designed hydrogel ink is highly biocompatible and electrically conductive, paving the way for the next generation of wearable and implantable bioelectronics."

The biomaterial ink takes advantage of a new class of 2D nanomaterials known as molybdenum disulfide (MoS2) that contain detect centers capable of making it chemically active and, when integrated with a modified gelatin which allows it to obtain a flexible hydrogel, demonstrates similarities to the structure of Jell-O. The shear-thinning properties of the ink act like toothpaste or ketchup where it’s solid inside a tube but flows like a liquid when it’s squeezed, with the resulting ink having the potential to be conducive to 3D printing.

"These 3D-printed devices are extremely elastomeric and can be compressed, bent or twisted without breaking," said Kaivalya Deo, a PhD Candidate in the Department of Biomedical Engineering at Texas A&M University, and lead author of the study. "In addition, these devices are electronically active, enabling them to monitor dynamic human motion and paving the way for continuous motion monitoring."

After designing their own 3D bioprinter, the research team printed electrically active and stretchable electronic devices that along with demonstrating exceptional strain-sensing capabilities, can also be used for engineering customizable monitoring systems. One potential avenue for this new technology could be 3D printing electronic tattoos for patients with Parkinson’s disease that could monitor the patient’s movements, to include tremors.

Sources: ACS Nano

As always, keep doing science & keep looking up!

About the Author
MS in Geological Sciences
Laurence Tognetti is a six-year USAF Veteran who earned both a BSc and MSc from the School of Earth and Space Exploration at Arizona State University. Laurence is extremely passionate about outer space and science communication, and is the author of “Outer Solar System Moons: Your Personal 3D Journey”.
You May Also Like
OCT 16, 2022
Space & Astronomy
Astrobiology and Broccoli Gas
OCT 16, 2022
Astrobiology and Broccoli Gas
In a recent study published in The Astrophysical Journal, a team of researchers led by the University of California at R ...
OCT 29, 2022
Technology
Making EVs More Enticing for Drivers
OCT 29, 2022
Making EVs More Enticing for Drivers
In a recent study published in IEEE Transactions on Intelligent Transport Systems, a pair of researchers from North Caro ...
NOV 03, 2022
Space & Astronomy
JWST Takes Stunning Image of Pillars of Creation
NOV 03, 2022
JWST Takes Stunning Image of Pillars of Creation
The James Webb Space Telescope has taken not just one but two breathtaking images of the Pillars of Creation. Located in ...
NOV 16, 2022
Space & Astronomy
Where Did the Planets Go?
NOV 16, 2022
Where Did the Planets Go?
A new study published in the Astrophysical Journal Letters presents a solution to some mysterious patterns that have sho ...
NOV 23, 2022
Space & Astronomy
JWST Images a Star in the Midst of Formation
NOV 23, 2022
JWST Images a Star in the Midst of Formation
This image can easily be mistaken for a planetary nebula, but it is actually an image of a young star in the midst of fo ...
DEC 04, 2022
Earth & The Environment
Future of Hydrogen Fuel Gets a Catalyst
DEC 04, 2022
Future of Hydrogen Fuel Gets a Catalyst
In a recent study published in Science, a team of researchers led by Rice University discusses a light-activated catalys ...
Loading Comments...