- About Us
- Career Center
- Nano-Social Network
- Nano Consulting
- My Account
|Ivan Aprahamian (photo by Joseph Mehling '69)|
In nanotechnology, mastering the machinery of chemical bonds is tricky business - and the fact that they are tiny, at the molecular level, is just one hurdle. Dartmouth researcher Ivan Aprahamian and his team have developed a new molecular switch that changes its configuration as a function of the pH of the environment.
This discovery, using synthetic materials, mimics natural, biological molecular motors such as the F1-ATPase. This might someday help lead to targeted drug delivery systems, molecular-level data storage, and molecular electronics, important objectives in nanotechnology.
The study appeared in December online issue of the Journal of the American Chemical Society.
"The switching process takes place via a rotation around the carbon-nitrogen double bond, and it turns out that our system is the first chemically activated rotary switch that relies on rotation around a double bond as opposed to rotation around a single bond," said Aprahamian, an assistant professor of chemistry, who explains that rotation around a single bond yields multiple conformations, whereas rotation around a double bond affords two configurations.
"Light-induced configurational switches are known and have been used in various applications. Ours is chemically driven, similar to biological motors, which can lead to new possibilities in nanotechnology".
Aprahamian's co-author on the paper is Shainaz Landge, a post-doctoral researcher at Dartmouth.
More information: Journal of the American Chemical Society: pubs.acs.org/journal/jacsat
About Dartmouth College
Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.
For more information, please click here
Copyright © Dartmouth CollegeIf you have a comment, please Contact us.
Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
|Related News Press|
News and information
Printing Silicon on Paper, with Lasers April 21st, 2015
A glass fiber that brings light to a standstill: By coupling photons to atoms, light in a glass fiber can be slowed down to the speed of an express train; for a short while it can even be brought to a complete stop April 9th, 2015
Two-dimensional semiconductor comes clean April 27th, 2015
Graphenea celebrates fifth anniversary April 27th, 2015