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Sol‐gel‐derived metal‐dispersed carbon composite amperometric biosensors
Author(s) -
Wang Joseph,
Pamidi Prasad V. A.,
Park Deog Su
Publication year - 1997
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140090112
Subject(s) - amperometry , biosensor , composite number , metal , carbon fibers , materials science , nanotechnology , chemistry , electrode , composite material , electrochemistry , metallurgy
The advantages which accrue from the coupling of sol‐gel enzyme electrode preparation processes with the dispersion of electrocatalytic metal centers are described. In particular, ruthenium‐dispersed sol‐gel carbon thick‐film bioelectrodes couple the low‐temperature curing process with the elimination of contributions from easily oxidizable interfering species. The remarkable selectivity towards the glucose substrate is combined with a greatly enhanced sensitivity. Factors influencing the performance of these sol‐gel‐derived metal‐doped enzyme strips are discussed.