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:
TAG: MITs smart surface switches properties reversibly

(Date:11/5/2014)... Kelly Redmond has dedicated his career to understanding ... a general audience. , As deputy director and ... at Nevada,s Desert Research Institute, Redmond has more ... application and dissemination of climate data to the ... Meeting in San Francisco on December 15-19, 2014 ...
(Date:11/4/2014)... at the right time might actually help boost a ... help in understanding animal populations, pest control and managing ... the journal Trends in Ecology and Evolution , ... the kind of positive population effect an overall species ... on the size and developmental stage of the creatures ...
(Date:11/4/2014)... A newly published research study examining only marketing ... of fast food restaurants has found that the ... disproportionately exposed to such marketing tactics. , Authored ... her colleagues, the study is the first to ... interior and exterior of fast food restaurants and ...
Breaking Biology News(10 mins):Nevada climatologist to be honored at AGU Fall Meeting for lifetime of public outreach 2When less is more: Death in moderation boosts population density in nature 2Fast food marketing for children disproportionately affects certain communities 2Fast food marketing for children disproportionately affects certain communities 3
(Date:11/22/2014)... -- The element of surprise has been a major advantage ... warning. Until now, epidemiologists had nothing to measure that ... in suboptimal responses to both the H1N1 pandemic of ... - http://photos.prnewswire.com/prnh/20141121/160242 That virus ... gene structural changes have been found that invariably to ...
(Date:11/21/2014)... (PRWEB) November 19, 2014 The science ... lives was shared with more than 200 primary students ... students from the University of Otago Physics Department and ... The Otago students, members of the university’s OSA/SPIE Student ... in early September, giving children from small, rural schools ...
(Date:11/21/2014)... The report, "Synthetic Biology Market by ... Technology (Bioinformatics, Nanotechnology, Gene Synthesis, Cloning & ... Global Forecast to 2018", analyses and studies ... challenges. , Browse 99 market data tables ... and in-depth TOC of the global synthetic ...
(Date:11/21/2014)... November 21, 2014 2014 Deep ... Industry” is a professional and in-depth research report ... ferrocyanide information, like its definition, classification, application, ... overview. This report covers the international market analysis, ... (such as the US, Europe, Asia, China, Japan ...
Breaking Biology Technology:Viruses' Advantage of Surprise is Lost 2Optics and photonics outreach programs share science, spark fascination with light 2Optics and photonics outreach programs share science, spark fascination with light 3Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 2Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 3Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 4Sodium Ferrocyanide Market: Analysis for Global & China Regions Development Trends Available at DeepResearchReports.com 2Sodium Ferrocyanide Market: Analysis for Global & China Regions Development Trends Available at DeepResearchReports.com 3
Cached News: