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Green gel
Date:4/18/2008

s green.

This hybrid material has a special trait: the cross-linking of the polymer chains is achieved exclusively by means of the proteins. Because proteins can be attacked by proteases, enzymes that disintegrate proteins, these gels are biodegradable. The green fluorescence of the protein is pH-dependent. The gel correspondingly also reacts to changes in pH. It only fluoresces in the basic range; in a lightly acidic medium, the gel no longer fluoresces. Raising the temperature also elicits a response from the gel. The protein denatures at about 70 C, which quenches the fluorescence and causes the gel to shrink.


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Contact: Matthew B. Francis
francis@cchem.berkeley.edu
510-643-9915
Wiley-Blackwell
Source:Eurekalert

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