NDLI: Exploiting enzymatic (reversed) hydrolysis in directed self-assembly of peptide nanostructures.

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Year: 2008 Volume: 4 Issue: 1

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Year: 2006 Volume: 2

Exploiting enzymatic (reversed) hydrolysis in directed self-assembly of peptide nanostructures.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Das, Apurba K. Collins, Richard Ulijn, Rein V.
Description	Country affiliation: United kingdom Author Affiliation: Das AK ( School of Materials & Manchester Interdisciplinary Biocentre (MIB), The University of Manchester, Grosvenor Street, Manchester, M1 7HS, UK.)
Abstract	Enzyme-catalyzed reactions can be exploited to control molecular self-assembly under physiological conditions by converting nonassembling precursors into self-assembly building blocks. Two complementary approaches based on aromatic short-peptide derivatives that form molecular hydrogels are demonstrated. Firstly, it is shown that esterase-directed self assembly via hydrolysis of hydrophobic N-(fluorenyl-9-methoxycarbonyl) (Fmoc)-peptide methyl esters give rise to formation of transparent hydrogels composed of defined peptide nanotubes. The internal and external diameters of these tubes are highly tunable, depending on the amino acid composition and chain length of the building blocks. Secondly, protease-directed self-assembly of Fmoc-peptide esters is achieved via amide-bond formation (reversed hydrolysis) for combinations of Fmoc-threonine and leucine/phenylalanine methyl esters, producing fibrous hydrogels. Upon treatment with an esterase, these systems revert back to solution, thus providing a two-stage solution-gel-solution transition.
File Format	HTM / HTML
ISSN	16136810
Issue Number	2
Volume Number	4
e-ISSN	16136829
Journal	Small
Language	English
Publisher	Wiley-VCH
Publisher Date	2008-02-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Nanotechnology Nanostructures Chemistry Peptides Amino Acids Cryoelectron Microscopy Esterases Fluorenes Hydrogels Hydrolysis Microscopy, Electron, Scanning Microscopy, Electron, Transmission Multiprotein Complexes Ultrastructure Nanotechnology Peptide Hydrolases Solutions Spectrometry, Fluorescence Spectroscopy, Fourier Transform Infrared Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Medicine Biomaterials Engineering Biotechnology

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