Navigation Links
UT Dallas team creates flexible electronics that change shape inside body
Date:5/13/2014

Researchers from The University of Texas at Dallas and the University of Tokyo have created electronic devices that become soft when implanted inside the body and can deploy to grip 3-D objects, such as large tissues, nerves and blood vessels.

These biologically adaptive, flexible transistors might one day help doctors learn more about what is happening inside the body, and stimulate the body for treatments.

The research, available online and in an upcoming print issue of Advanced Materials, is one of the first demonstrations of transistors that can change shape and maintain their electronic properties after they are implanted in the body, said Jonathan Reeder BS '12, a graduate student in materials science and engineering and lead author of the work.

"Scientists and physicians have been trying to put electronics in the body for a while now, but one of the problems is that the stiffness of common electronics is not compatible with biological tissue," he said. "You need the device to be stiff at room temperature so the surgeon can implant the device, but soft and flexible enough to wrap around 3-D objects so the body can behave exactly as it would without the device. By putting electronics on shape-changing and softening polymers, we can do just that."

Shape memory polymers developed by Dr. Walter Voit, assistant professor of materials science and engineering and mechanical engineering and an author of the paper, are key to enabling the technology.

The polymers respond to the body's environment and become less rigid when they're implanted. In addition to the polymers, the electronic devices are built with layers that include thin, flexible electronic foils first characterized by a group including Reeder in work published last year in Nature.

The Voit and Reeder team from the Advanced Polymer Research Lab in the Erik Jonsson School of Engineering and Computer Science fabricated the devices with an organic semiconductor but used adapted techniques normally applied to create silicon electronics that could reduce the cost of the devices.

"We used a new technique in our field to essentially laminate and cure the shape memory polymers on top of the transistors," said Voit, who is also a member of the Texas Biomedical Device Center. "In our device design, we are getting closer to the size and stiffness of precision biologic structures, but have a long way to go to match nature's amazing complexity, function and organization."

The rigid devices become soft when heated. Outside the body, the device is primed for the position it will take inside the body.

During testing, researchers used heat to deploy the device around a cylinder as small as 2.25 millimeters in diameter, and implanted the device in rats. They found that after implantation, the device had morphed with the living tissue while maintaining excellent electronic properties.

"Flexible electronics today are deposited on plastic that stays the same shape and stiffness the whole time," Reeder said. "Our research comes from a different angle and demonstrates that we can engineer a device to change shape in a more biologically compatible way."

The next step of the research is to shrink the devices so they can wrap around smaller objects and add more sensory components, Reeder said.


'/>"/>

Contact: LaKisha Ladson
lakisha.ladson@UTDallas.edu
972-883-4183
University of Texas at Dallas
Source:Eurekalert

Related biology news :

1. UT Dallas awarded $1 million to improve prosthetics for soldiers
2. UT Dallas professor wins $2.3 million NIH award
3. UT Dallas study: Initial success for new tinnitus treatment
4. UT Dallas computer scientists create 3-D technique
5. UT Dallas researchers find early success in new treatment for stroke recovery
6. UT Dallas researchers pushing the boundaries of virtual reality
7. UT Dallas researchers awarded $4.3 million to create next-generation technologies
8. Illinois initiative creates futuristic facility
9. Team creates MRI for the nanoscale
10. Protein creates paths for growing nerve cells
11. Rice, Texas Childrens team creates biocompatible patch to heal infants with birth defects
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/29/2016)... Nearly one billion matches per second with DERMALOG,s high-speed AFIS    ... ... DERMALOG is Germany's largest Multi-Biometric supplier: The ... Identification Systems) ... Germany's largest Multi-Biometric supplier: The company's Fingerprint Identification System is part of ...
(Date:11/24/2016)... Nov. 23, 2016 Cercacor today introduced Ember ... their trainers non-invasively measure hemoglobin, Oxygen Content, ... and Respiration Rate in approximately 30 seconds. Smaller than ... and immediate access to key data about their bodies ... training regimen. Hemoglobin carries oxygen to ...
(Date:11/22/2016)...   MedNet Solutions , an innovative SaaS-based eClinical ... research, is pleased to announce that the company has ... Sciences Awards as "Most Outstanding in eClinical Solutions" ... of recognition and growth for MedNet, which has effectively ... iMedNet ™ , MedNet,s flagship eClinical ...
Breaking Biology News(10 mins):
(Date:12/7/2016)... ... 07, 2016 , ... Proscia Inc., the provider of the ... rapid migration of large pathology data sets to the Proscia Pathology Cloud platform. ... of digital pathology. Proscia’s free massive dataset migrator makes the secure, HIPAA-compliant upload ...
(Date:12/6/2016)... -- The American Botanical Council (ABC) recognizes wellness ... Arnica montana ) through ABC,s Adopt-an-Herb program. This ... database, a comprehensive, interactive online tool that provides ... on the uses and health effects of more ... wellness company with healing arts centers, skin and ...
(Date:12/6/2016)... ... December 06, 2016 , ... Discovering new clues to natural treatments that could ... happening in our brains. And searching for keys to our immune systems by studying ... with the 2017 Edith and Peter O’Donnell Awards by The Academy ...
(Date:12/6/2016)... India , December 6, 2016 According ... Chips, Micropump, Microneedle), Material (Polymer, Glass, Silicon), Application (Genomics, Proteomics, Capillary ... published by MarketsandMarkets, the global market is projected to reach USD ... a CAGR of 19.2% during the forecast period (2016 to 2021). ... ...
Breaking Biology Technology: