Massachusetts Institute of Technology
Sign in

Switchable Surfaces

Professor Robert Langer, MIT's Germeshausen Professor of Chemical and Biomedical Engineering, and colleagues at the Institute for Soldier Nanotechnologies are working on a unique design of a "smart surface" that can reversibly switch properties in response to an external stimulus. The new switchable surface essentially consists of a forest of molecules only a billionth of a meter tall, engineered to stand at a precise distance from each other. When a positive electrical potential is applied, the top bends down to reveal another surface. Reverse the electrical potential, and the molecules straighten to their full height.

The work paves the way for systems that could, for example, release or absorb cells and chemicals from surfaces on demand. Future work will include developing surfaces that have different switchable properties as well as tailoring the proof-of-concept system for different applications.

Comments (0)

It looks like no one has posted a comment yet. You can be the first!

You need to log in, in order to post comments.

MIT Video Productions

MIT Video Productions

Category: Education | Updated 7 years ago

Created
January 22, 2008 15:47
Category
Tags
License
All Rights Reserved (What is this?)
Additional Files


Viewed
23861 times

More from MIT Video Productions

Nano Neuro Knitting

Nano Neuro Knitting

Added over 9 years ago | 00:04:11 | 34217 views

Waterproof Everything

Waterproof Everything

Added over 9 years ago | 00:03:13 | 19848 views

The Nepal Water Project - MIT Graduation Video (2003)

The Nepal Water Project - MIT Gradu...

Added over 9 years ago | 00:02:40 | 26026 views

Hack on Building 10

Hack on Building 10

Added over 10 years ago | 00:00:26 | 17191 views

RoboSnail

RoboSnail

Added over 9 years ago | 00:03:18 | 22023 views

Seeing Machine

Seeing Machine

Added almost 10 years ago | 00:04:29 | 31243 views