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: Liquid helium offers a fascinating new way to make charged molecules

add to favorites email to friend print save as pdf

Related Stories

Review: Apple Pay in action

17 minutes ago

If there ever comes a day I can ditch my wallet and use my phone to pay for everything, I'll look back to my first purchase through Apple Pay: a Big Mac and medium fries for $5.44. That wallet-free day won't ...

Samsung seeks boost from redesigned Note

24 minutes ago

The latest version of Samsung's popular big-screen Galaxy Note has gone on sale at a crucial time for the South Korean company as it suffers a rapid decline in profit from its global smartphone business.

Recommended for you

Amino acids key to new gold leaching process

3 hours ago

Curtin University scientists have developed a gold and copper extraction process using an amino acid–hydrogen peroxide system, which could provide an environmentally friendly and cheaper alternative to ...

Researchers create designer 'barrel' proteins

20 hours ago

Proteins are long linear molecules that fold up to form well-defined 3D shapes. These 3D molecular architectures are essential for biological functions such as the elasticity of skin, the digestion of food, ...

User comments : 0