Место издания:Military Publishing Ltd Sofia, Bulgaria
Первая страница:82
Последняя страница:87
Аннотация:A special design of thick fi lm sensors and electrochemical detector for
cholinesterases assay and their inhibitors in aqueous samples has been developed. For
this assay, thiol sensitive sensors based on screen printed graphite electrode modifi ed
with nanoparticles of manganese dioxide were used. High sensitivity of manganese
dioxide modifi ed thick fi lm sensors towards thiocholine and therefore low detection
limit of butyrylcholinesterase (1 pM) enabled their use for subnanomolar detection
of an organophosphate pesticide diazinon, and other irreversible inhibitors of BChE.
These developed electrochemical thick fi lm sensors may be well suited for the analysis
of choline esterases in biological fl uids.