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2 Neutron reflection studies of interactions between surfactants and proteins at interfaces

2 Neutron reflection studies of interactions between surfactants and proteins at interfaces Neutron reflection studies of interactions between surfactants and proteins at interfaces Jian R. Lu Department of Physics, UMIST, PO Box 88, Manchester, UK M60 1QD. E-mail: j.lu@umist.ac.uk Introduction Binding of surfactant to protein at interfaces is a molecular process that underpins a diverse range of medical and technological applications.1–4 For example, the interactions between proteins and surfactants at the air/water and oil/water interfaces affect the stability and breakdown of foams and emulsions occurring in the chemical, pharmaceutical, food and cosmetic industries. The phenomenon of binding of surfactants onto protein molecules at the solid/solution interface is an event occurring during the process of cleaning of blood proteins deposited on medical devices. In bio-catalysis, surfactants or lipids are frequently used to tune the bioactivity of the immobilised enzymes. The air/water interface is often used as a model system to gain information about the interfacial events involving surfactants and proteins but even in such idealised situations, changes in surface tension and surface viscoelasticity are usually difficult to interpret in the absence of knowledge about the structure and composition of the mixed surface layers. The lack of progress in this area is largely due to the absence of suitable experimental techniques capable http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Reports Section "C" (Physical Chemistry) Royal Society of Chemistry

2 Neutron reflection studies of interactions between surfactants and proteins at interfaces

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Publisher
Royal Society of Chemistry
Copyright
This journal is © The Royal Society of Chemistry
ISSN
0260-1826
eISSN
1460-4787
DOI
10.1039/b111163a
Publisher site
See Article on Publisher Site

Abstract

Neutron reflection studies of interactions between surfactants and proteins at interfaces Jian R. Lu Department of Physics, UMIST, PO Box 88, Manchester, UK M60 1QD. E-mail: j.lu@umist.ac.uk Introduction Binding of surfactant to protein at interfaces is a molecular process that underpins a diverse range of medical and technological applications.1–4 For example, the interactions between proteins and surfactants at the air/water and oil/water interfaces affect the stability and breakdown of foams and emulsions occurring in the chemical, pharmaceutical, food and cosmetic industries. The phenomenon of binding of surfactants onto protein molecules at the solid/solution interface is an event occurring during the process of cleaning of blood proteins deposited on medical devices. In bio-catalysis, surfactants or lipids are frequently used to tune the bioactivity of the immobilised enzymes. The air/water interface is often used as a model system to gain information about the interfacial events involving surfactants and proteins but even in such idealised situations, changes in surface tension and surface viscoelasticity are usually difficult to interpret in the absence of knowledge about the structure and composition of the mixed surface layers. The lack of progress in this area is largely due to the absence of suitable experimental techniques capable

Journal

Annual Reports Section "C" (Physical Chemistry)Royal Society of Chemistry

Published: Aug 15, 2002

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