Electrochemical immobilization of a pH sensitive fluorescein derivative: synthesis and characterization of a fluorescein-derivatised polythiophene

Abstract

The electrochemical immobilization of a pH sensitive fluorescein derivative was achieved by preparing a fluorescein-substituted thiophene species, followed by its electropolymerization on a Pt electrode.

References

1. R. Sjoback, J. Nygren and M. Kubista, Spectrochim. Acta: Part A, 1995, 51, L-7 and references cited therein.
2. T. E. Edmonds, Chemical Sensors, Blackie, Glasgow, 1988; S. A. Momin and R. Narayanaswamy, Optical Fibre Chemical Sensors: Current State Reviews, UMIST, 1993; T. E. Edmonds, N. J. Flatters, C. F. Jones and J. N. Miller, Talanta, 1988, 35, 103 and references cited therein.
3. B. D. MacCraith, Sens. Actuators B, 1993, 11, 29; B. D. MacCraith, C. M. McDonagh, G. O'Keeffe, A. K. McEvoy, T. Butler and F. R. Sheridan, Sens. Actuators B, 1995, 29, 51; L. M. Shamansky, M. Yang, M. Olteanu and E. L. Chronister, Mater. Lett., 1997, 26, 113.
4. S. M. Barnard and D. R. Walt, Nature, 1991, 353, 338; K. S. Bronk, K. L. Michael, P. Pantano and D. R. Walt, Anal. Chem., 1995, 67, 2750; W. D. Sloan and M. Uttamlal, Sensors and their Applications VIII, ed. A. T. Augousti and N. M. White, Institute of Physics, Bristol, 1997, 275.
5. W. J. Albery, F. B. Li and A. Mount, J. Electroanal. Chem., 1991, 310, 239; F. B. Li and W. J. Albery, Electrochim. Acta, 1991, 37, 293; F. B. Li and W. J. Albery, Langmuir, 1993, 8, 1645; H. P. Welzel, G. Kossmehl, H. J. Stein, J. Schneider and W. Plieth, Electrochim. Acta, 1995, 40, 577.
6. E. Lee-Ruff and F. J. Ablenas, Can. J. Chem., 1987, 65, 1663.
7. P. N. Bartlett and D. H. Dawson, J. Mat. Chem., 1994, 4, 810.
8. J. C. Eklund, D. N. Waller, T. O. Rebbitt and R. G. Compton, J. Chem. Soc. Perkin-Trans 2, 1995, 1981; R. G. Compton, J. C. Eklund and F. Marken, Electroanalysis, 1997, 9, 509 and references therein.
9. J. E. Jones and R. C. Spooncer, J. Phys. E., 1983, 16, 1124.