New microfabrication technology announced

February 8, 2007

U.S. scientists have created a new method of rapidly engineering complex micro-scale patterns and 3D microstructures from biocompatible proteins.

Hason Shear and Bryan Kaehr of the University of Texas say their microfabrication technology involves a laser technique to fabricate detailed shapes by condensing, or crosslinking, proteins in solution into a solid matrix.

The technique, called mask-directed multi-photon lithography, is modeled after the lithography processes widely used to transfer electronic circuits onto a semiconductor wafer by projecting light through a pattern or "mask." However, the new method uses a special laser to scan objects or patterns printed on transparency film with an ordinary desktop printer.

The silhouette ultimately is refocused into the protein solution using the objective lens of a microscope. Because protein molecules must be extremely close to the laser focus to undergo crosslinking into solid material, the method allows structures to be created with complex 3-D shapes. The process takes only minutes, the researchers report.

The research is to appear in the Feb. 28 issue of the Journal of the American Chemical Society.

Copyright 2007 by United Press International

Explore further: Diesel exhaust gases without any nitric oxides – is that possible?

Related Stories

Laser ablation boosts terahertz emission

September 17, 2015

From almost instantaneous wireless transfer of huge amounts of data and easy detection of explosives, weapons, or harmful gases, to safe 3-D medical imaging and new advances in spectroscopy —technologies based on terahertz ...

Silicon photonics meets the foundry

September 9, 2015

Advances in microprocessors have transferred the computation bottleneck away from CPUs to better communications between components. That trend is driving the advance into optical interconnection of components, now moving ...

Recommended for you

What happens when your brain can't tell which way is up?

October 13, 2015

In space, there is no "up" or "down." That can mess with the human brain and affect the way people move and think in space. An investigation on the International Space Station seeks to understand how the brain changes in ...

Facebook to test mobile app shopping tab

October 12, 2015

Facebook said Monday that it will begin testing a shopping tab for its mobile app as it works to ramp up advertising and online commerce offerings.


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.