Small angle neutron scattering study of the structural modifications induced by the entrapped glucose oxidase in polyacrylamide microgels

E. López Cabarcos, B.J. Rubio Retama, B. López Ruiz, M. Heinrich and A. Fernandez Barbero

Physica A: Statistical Mechanics and its Applications, 2004, vol. 344, issue 3, 417-423

Abstract: We have investigated, using small angle neutron scattering (SANS), polyacrylamide microgels with 0.25% and 1.5% (w/w) cross-linking percentages. The SANS patterns consist of solution-like concentration fluctuations given by two Lorentz functions and a contribution at low q of the type I(q)∼q−β (q being the scattering vector). Glucose Oxidase was entrapped into microgels with 1.5% cross-linking with the aim to prepare a glucose biosensor. The structural changes induced in the polymer network by the entrapped enzyme are reported.

Keywords: Microgels; Enzyme immobilization; Small angle neutron scattering; Glucose oxidase (search for similar items in EconPapers)
Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:344:y:2004:i:3:p:417-423

DOI: 10.1016/j.physa.2004.06.009

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