HOME >> BIOLOGY >> NEWS
MITs smart surface switches properties reversibly

CAMBRIDGE, Mass.--MIT engineers and colleagues from the University of California are reporting a unique design of a smart surface that can reversibly switch properties in response to an external stimulus. The work paves the way for systems that could, for example, release or absorb cells and chemicals from surfaces on demand.

In the Jan. 17 issue of Science, the researchers describe an example of their new approach in which they engineered a surface that can change from water-attracting to water-repelling with the application of a weak electric field. Switch the electrical potential of that field from positive to negative and the surface reverts to its initial affinity for water.

The general technique, on which the group has filed for a patent, could also be applied to the dynamic control of other surface characteristics such as adhesion, friction and biocompatibility. We started with a fundamental system to prove that the overall concept of reversibly modifying a surface via conformational transitions works, said Thanh-Nga Tran, a graduate student in the Harvard-MIT Division of Health Sciences and Technology (HST) and the Department of Chemical Engineering.

This opens the door to a variety of applications, including novel drug-delivery systems and smart templates for the bioseparation of one molecule from another, said Robert Langer, MITs Germeshausen Professor of Chemical and Biomedical Engineering and leader of the work. Langer has appointments in chemical engineering, HST and MITs Biological Engineering Division.

This is the first time to our knowledge that anyone has created a truly reversible switch of a surfaces property exploiting monomolecular layers, said Joerg Lahann, a Postdoctoral Associate in CE. As a result, we believe this study lays the fundamental groundwork for a new paradigm in surface engineering that may be of considerable significance in materials science, biology, and medicine.

In addition to L
'"/>

Contact: Elizabeth Thomson
thomson@mit.edu
617-258-5402
Massachusetts Institute of Technology
16-Jan-2003


Page: 1 2 3

Related biology news :

1. Study of flu patients reveals virus outsmarting key drug
2. Muscles are smarter than you think
3. Purdue scientists finding ways to outsmart crop-damaging bugs
4. With natures help, a better vision system for smart weapons
5. UCSD researchers fabricate tiny smart dust particles
6. Scientists at the Scripps Research Institute design gene-tipped tumor regressor smartbombs
7. Researchers developing technology to outsmart metastasized cancers
8. How did we get so smart? Study sheds light on evolution of the brain
9. Pharmaceutical smart bomb targets cancer cells
10. Female birds choose best singers to have smarter offspring
11. Prosthetic limb to be controlled by microchip: Agreement signed to create smart leg

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


(Date:4/11/2017)... NXT-ID, Inc. (NASDAQ:   NXTD ) ... appointment of independent Directors Mr. Robin D. Richards ... Directors, furthering the company,s corporate governance and expertise. ... Gino Pereira , Chief Executive ... their guidance and benefiting from their considerable expertise as we ...
(Date:4/5/2017)... , April 4, 2017 KEY FINDINGS ... anticipated to expand at a CAGR of 25.76% during ... diseases is the primary factor for the growth of ... report: https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The global ... product, technology, application, and geography. The stem cell market ...
(Date:3/30/2017)... 30, 2017 The research team of The ... (3D) fingerprint identification by adopting ground breaking 3D fingerprint minutiae recovery ... of speed and accuracy for use in identification, crime investigation, immigration ... ... A research team ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... 2017  VMS BioMarketing, a leading provider of patient support ... Nurse Educator (CNE) network, which will launch this week. The ... health care professionals to enhance the patient care experience by ... other health care professionals to help women who have been ... ...
(Date:10/10/2017)... , ... October 10, 2017 , ... San Diego-based team ... its corporate rebranding initiative announced today. The bold new look is part of ... the company moves into a significant growth period. , It will also expand its ...
(Date:10/10/2017)... Oct. 10, 2017 SomaGenics announced the receipt ... to develop RealSeq®-SC (Single Cell), expected to be the ... RNAs (including microRNAs) from single cells using NGS methods. ... need to accelerate development of approaches to analyze the ... "New techniques for measuring levels of mRNAs in ...
(Date:10/9/2017)... ... October 09, 2017 , ... At its national board meeting in North Carolina, ... Harvard University’s Departments of Physics and Astronomy, has been selected for membership in ... team for the 2015 Breakthrough Prize in Fundamental physics for the discovery of the ...
Breaking Biology Technology:
Cached News: