New microfabrication technology announced

Feb 08, 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: Video: What does space smell like?

add to favorites email to friend print save as pdf

Related Stories

Nanovectors combine cancer imaging and therapy

Feb 09, 2015

Researchers at Imperial College London and the Laboratoire de chimie de la matière condensée de Paris (CNRS/Collège de France/UPMC) have designed and developed hybrid gold-silica nanoparticles, which are ...

Award-winning research on cell metabolism

Feb 09, 2015

A better understanding of the way metabolism works may in the long run mean make it easier to find new medicines for diseases such as diabetes. By combining different methods taken from physics, the researcher ...

Five ways to put tiny targets in front of an X-ray laser

Feb 03, 2015

X-ray devices have long been used to see the inner structure of things, from bone breaks in the human body to the contents of luggage at airport security checkpoints. But to see life's chemistry and exotic materials at the ...

Recommended for you

Video: What does space smell like?

12 hours ago

You can see it through a telescope, or watch a documentary about it, but you can't stick your nose out and take a whiff.

Solar cells get growth boost

16 hours ago

Researchers at the Okinawa Institute of Science and Technology Graduate University's (OIST) Energy Materials and Surface Sciences Unit have found that growing a type of film used to manufacture solar cells ...

User comments : 0

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.