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TTF‐TCNQ complex based printed biosensor for long‐term operation
Author(s) -
Khan Golam Faruque
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.1140090413
Subject(s) - biosensor , term (time) , materials science , nanotechnology , optoelectronics , combinatorial chemistry , chemistry , computer science , physics , quantum mechanics
A printed amperometric glucose sensor based on glucose oxidase adsorbed on crystals of tetrathiafulvalene‐tetracyanoquinodimethane (TTF‐TCNQ) is described. The sensitivity and the stability of the sensor are affected by the binder and solvent used for the preparation of the GOD.TTF‐TCNQ paste. The sensors are continuously used in a flow injection analysis (FIA) system under continuous polarization at 0.15 V (vs Ag/AgCl) at 37°C. The developed sensors exhibit a large response current, an extended linear range and oxygen independence. The sensors can be used for more than 3 months. The GOD.TTF‐TCNQ paste is suitable for the preparation of planar sensor by screen printing method.