HOME >> MEDICINE >> NEWS
Wrinkled membranes create novel drug-delivery system

A University of Illinois scientist studying how membranes wrinkle has discovered a novel system for on-demand drug delivery.

Sahraoui Chaieb, a professor of mechanical and industrial engineering, has created temperature-sensitive capsules that can release drugs on demand. The capsules, which can range in size from 10 to 100 microns, can be tuned to deliver drugs at different rates. Chaieb reports his findings in the Feb. 17 issue of the journal Physical Review Letters.

To make the capsules, Chaieb begins by confining a drug inside lipid bilayer membranes. Some of the lipids are then "sewn together" through a polymerization process. Cooling the capsules by 10 degrees Celsius causes the capsules to crumple and collapse like deflated beach balls, releasing the drug.

"The release rate can be controlled by the amount of wrinkling that occurs," said Chaieb, who also is a professor of bioengineering and a researcher at the Beckman Institute for Advanced Science and Technology. "And the amount of wrinkling is dependent upon the degree of membrane polymerization that took place."

One problem that remains is how to cool the capsules without harming the surrounding tissue. The solution, Chaieb said, might lie in newly discovered nanoparticles that can be chilled through magnetic cooling.

Chaieb and colleagues at Illinois are exploring ways to coat the capsules with the nanoparticles. When exposed to a magnetic field, the nanoparticles would cool down and remove heat from the capsules. The capsules would then wrinkle and release the drug.


'"/>

Contact: James E. Kloeppel, Physical Sciences Editor
kloeppel@uiuc.edu
217-244-1073
University of Illinois at Urbana-Champaign
13-Feb-2006


Page: 1

Related medicine news :

1. RAND, Health Dialog form alliance to create tools to evaluate health-care quality and efficiency
2. Spanish project AmIVital creates intelligent communication devices for elderly and disabled people
3. ASU, Walter Reed researchers create prosthesis of the future
4. Head and neck cancer vaccine targets proteins to create immune response
5. Scientists create dual-modality microbeads to improve identification of disease biomarkers
6. St. Jude, El Salvador create research ethics committee
7. Bacteria could make new library of cancer drugs that are too complex to create artificially
8. NCI creates network of Clinical Proteomic Technology Centers for cancer research
9. UCSD researchers create roadmap to integrin activation
10. Young brainy students create world first
11. Baylor Institute for Immunology research receives $3 million grant to create cancer vaccines

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/29/2016)... Southlake, Texas (PRWEB) , ... April 29, 2016 , ... ... and neck pain, is proud to announce one of their physicians has been invited ... Osteopathic Family Physicians (Texas ACOFP) Family Practice Review conference on April 30, 2016. ...
(Date:4/29/2016)... ... April 29, 2016 , ... ... student team BioCellection won the $30,000 Perlman Grand Prize of the 2016 Wharton ... Undergraduate Award, the Michelson People‚Äôs Choice Award, and the Committee Award for Most ...
(Date:4/29/2016)... ... April 29, 2016 , ... Mobility Designed is redefining mobility with ... armpits, the M+D Crutch evenly distributes body weight from the elbow to the forearm. ... using the crutches than with other crutches. , Co-founders Max and Liliana Younger were ...
(Date:4/29/2016)... ... April 29, 2016 , ... World Patent Marketing ... an exercise invention which aids in proper muscle development. , "The Gym & ... Creative Director of World Patent Marketing. "Globalization has threatened the future growth of ...
(Date:4/29/2016)... ... April 29, 2016 , ... The Gluten-Free Certification Program ... to announce the launch of the GFCP Scoop in response to ... purpose of the GFCP Scoop site is to keep the gluten-free ...
Breaking Medicine News(10 mins):
(Date:4/27/2016)... , April 27, 2016  Bayer Animal Health ... senior from the University of Florida College of ... Bayer Excellence in Communication Award (BECA). Brittany was ... were awarded a total of $70,000 in scholarship ... four years, Bayer has provided a total of ...
(Date:4/27/2016)... SAN FRANCISCO , April 27, 2016 /PRNewswire/ ... to reach over USD 2.14 billion by 2022, ... Research, Inc.       (Logo: http://photos.prnewswire.com/prnh/20150105/723757 ... key technological advancement affecting the efficiency and accuracy ... hence, the persistent demand for novel urinalysis instruments ...
(Date:4/26/2016)... , April 26, 2016 Hill-Rom Holdings, Inc. ... a management presentation at the Deutsche Bank 41 st ... 2:50 p.m. EDT. You are invited to listen ... http://ir.hill-rom.com/events.cfm or access it directly at http://edge.media-server.com/m/p/mr4uxgas . ... hour after conclusion of the live event and accessible at ...
Breaking Medicine Technology:
Cached News: