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

✍ Scribed by E. López Cabarcos; B.J. Rubio Retama; B. López Ruiz; M. Heinrich; A. Fernandez Barbero

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 232 KB
• Volume: 344
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/j.physa.2004.06.009

✦ Synopsis

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 uctuations given by two Lorentz functions and a contribution at low q of the type I (q) ∼ q -ÿ (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.