Nanofibrillar Peptide hydrogels for the immobilization of biocatalysts for chemical transformations.
Enzymes are attractive, "green" alternatives to chemical catalysts within the industrial sector, but their robustness to environmental conditions needs optimizing. Here, an enzyme is tagged chemically and recombinantly with a self-assembling peptide that allows the conjugate to spontaneously assemble with pure peptide to form β-sheet-rich nanofibers decorated with tethered enzyme. Above a critical concentration, these fibers entangle and form a 3D hydrogel. The immobilized enzyme catalyzes chemical transformations and critically its stability is increased significantly where it retains activity after exposure to high temperatures (90 °C) and long storage times (up to 12 months).
['Hickling|Christopher|C|', 'Toogood|Helen S|HS|', 'Saiani|Alberto|A|', 'Scrutton|Nigel S|NS|', 'Miller|Aline F|AF|']
D055162:Biocatalysis D001711:Biotransformation D004800:Enzymes, Immobilized D020100:Hydrogels D057139:Nanofibers D010455:Peptides D012212:Rheology
peptide hydrogel chemical transformation self-assembly biocatalysis