pH‐induced reorientation of microperoxidase‐11 in mesoporous molecular sieves | Zendy

Zhang B. Paul | Zendy; Donohoe Robert J. | Zendy; Bailey James A. | Zendy

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pH‐induced reorientation of microperoxidase‐11 in mesoporous molecular sieves

Author(s) -

Zhang B. Paul,

Donohoe Robert J.,

Bailey James A.

Publication year - 2007

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.1661

Subject(s) - protonation , raman spectroscopy , molecular sieve , mesoporous material , substrate (aquarium) , chemistry , mesoporous silica , resonance (particle physics) , organic chemistry , catalysis , physics , atomic physics , optics , geology , adsorption , ion , oceanography

The resonance Raman spectra of microperoxidase‐11 loaded into the siliceous materials MCM‐41 and SBA‐15 demonstrate a pH dependence indicative of a protonation event on the substrate. An unusual change in relative Raman intensities without a shift in wavenumbers is observed upon lowering the system pH. Protonation of the silica surface is suggested to induce a reorientation of the MP‐11 fragments within the silica framework. Copyright © 2006 John Wiley & Sons, Ltd.

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