NDLI: Investigations on geometrical features in induced ordering of collagen by small molecules

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Investigations on geometrical features in induced ordering of collagen by small molecules

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Journal of Chemical Sciences : Volume 115, Issue 4, August 2003

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Investigations on geometrical features in induced ordering of collagen by small molecules

Content Provider	Springer Nature Link
Author	Madhan, B. Dhathathreyan, Aruna Subramanian, V. Ramasami, T.
Copyright Year	2003
Abstract	Binding energies of the interaction of collagen like triple helical peptides with a series of polyphenols, viz. gallic acid, catechin, epigallocatechingallate and pentagalloylglucose have been computed using molecular modelling approaches. A correlation of calculated binding energies with the interfacial molecular volumes involved in the interaction is observed. Calculated interface surface areas for the binding of polyphenols with collagen-like triple helical peptides vary in the range of 60–210 Å$^{2}$ and hydrogen bond lengths vary in the range of 2.7–3.4 Å. Interfacial molecular volumes can be calculated from the solvent inaccessible surface areas and hydrogen bond lengths involved in the binding of polyphenols to collagen. Molecular aggregation of collagen in the presence of some polyphenols and chromium (III) salts has been probed experimentally in monolayer systems. The monolayer arrangement of collagen seems to be influenced by the presence of small molecules like formaldehyde, gluteraldehyde, tannic acid and chromium (III) salts. A fractal structure is observed on account of two-dimensional aggregation of collagen induced by tanning species. Atomic force microscopy has been employed to probe the topographic images of two-dimensional aggregation of collagen induced by chromium (III) salts. A case is made that long-range ordering of collagen by molecular species involved in its stabilisation is influenced by molecular geometries involved in its interaction with small molecules.
Starting Page	751
Ending Page	766
Page Count	16
File Format	PDF
ISSN	02534134
Journal	Journal of Chemical Sciences
Volume Number	115
Issue Number	5-6
e-ISSN	09737103
Language	English
Publisher	Springer India
Publisher Date	2003-01-01
Publisher Institution	Indian Academy of Sciences
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Collagen polyphenols tanning assemblies Chemistry/Food Science
Content Type	Text
Resource Type	Article
Subject	Chemistry

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