ISSN:
1573-4846
Keywords:
biomaterials
;
sensors
;
enzyme
;
biosensors
;
spectroscopy in gels
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The enzymes oxalate oxidase and peroxidase are encapsulated in stable, optically transparent, porous silica glass matrices synthesized under mild conditions using novel sol-gel synthetic techniques. The large enzymes are immobilized, but smaller molecules such as oxalate ions pass readily through the porous glass. Upon exposure to oxalate solutions, a colored glass is formed whose absorption spectrum and changes of absorbance with time are measured. The sensitivity of the response and the time-dependence of the response are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00486359