Hostname: page-component-77c89778f8-9q27g Total loading time: 0 Render date: 2024-07-17T18:52:10.047Z Has data issue: false hasContentIssue false
  • English
  • Français

Fiber-Optic Microsensors Using Porous, Dye-Doped Silica Gel Microspheres

Published online by Cambridge University Press:  15 February 2011

Edward J. A. Pope
Edward J. A. Pope*
Affiliation:
MATECH, 31304 Via Colinas, Suite 102, Westlake Village, CA 91362
Get access

Abstract

Dye-doped porous silica microspheres can be prepared from liquid solution at temperatures near ambient. Microsphere diameter can be controlled between approximately 5.0 microns to in excess of a millimeter. The resulting microspheres can be attached to the distal end of an optical fiber in which the proximal end is attached to a spectrophotometer. Depending upon the organic species doped into the microsphere, a wide variety of sensing functions are possible. In this paper, the use of microsensors for measuring pH, temperature, and solvent content of aqueous solutions is demonstrated. Potential utility of this type of sensor to heavy metals detection and biomedical diagnostics is also discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 372: Symposium W1 – Hollow and Solid Spheres and Microspheres--Science and Technology , 1994 , 253
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Pope, E. J. A., in Chemical Processing of Ceramics, edited by Lee, B. I. and Pope, E. J. A. (Marcel-Dekker, New York, 1994) pp. 287–309.Google Scholar
2. Avnir, D., Levy, D., and Reisfeld, R., J. Phys. Chem.,88, 5956 (1984).Google Scholar
3. MacCraith, B. D., et al., J. Sol-Gel Sci. Tech.,2, 661 (1994).Google Scholar
4. MacCraith, B. D., in Sol-Gel Optics III, edited by J. D. Mackenzie (SPIE Proceedings vol.2288, Bellingham, WA, in press).Google Scholar
5. Pope, E. J. A., in Sol-Gel Optics II, edited by Mackenzie, J. D. (SPIE Proceedings vol.1758, Bellingham, WA, 1992) pp. 360–371.Google Scholar
6. Pope, E. J. A., Materials Technology, 9, 8 (1994).Google Scholar
7. Pope, E. J. A., in Flat-Panel Display Materials, edited byBatey, J., et al., (Mater. Res. Soc. Proc. 345, Pittsburgh, PA, 1994) in press.Google Scholar
8. Pope, E. J. A., in Sol-Gel Optics III, edited by J. D. Mackenzie (SPIE Proceedings vol.2288, Bellingham, WA, in press).Google Scholar
9. Lucan, P., et al., in Sol-Gel Optics II, edited by Mackenzie, J. D. (SPIE Proceedings vol.1758, Bellingham, WA, 1992) pp. 464–475.Google Scholar
10. L'Esperance, D., et al., in Better Ceramics Through Chemistry VI, edited by Cheetham, A. K., Brinker, C. J., Mecartney, M. L., and Sanchez, C. (Mater. Res. Soc. Proc. 346, Pittsburgh, PA, 1994) pp. 579–584.Google Scholar
11. Dunn, B., et al, in Better Ceramics Through Chemistry III, edited by Brinker, C. J., Clark, D. E., and Ulrich, D. R. (Mater. Res. Soc. Proc. 121, Pittsburgh, PA, 1988) pp. 331–342.Google Scholar
12. Pouxviel, J. C., Dunn, B., and Zink, J. I., J. Phys. Chem.,93, 2134(1989).Google Scholar
13. Pope, E. J. A., J. Sol-Gel Sci. and Tech., accepted.Google Scholar
14. Pope, E. J. A., in Sol-Gel Science and Technology, edited by E. J. A. Pope, S. Sakka, and L. C. Klein (Ceramic Transactions, Westerville, OH, in press).Google Scholar
15. Dye Laser Principles, edited by Duarte, F. J. and Hillman, L. W. (Academic Press, New York, 1990).Google Scholar
16. Dewar, M. J. S., et al., Organometallics, 4, 1973 (1985).Google Scholar
17. Oka, K. S. and Mackenzie, J. D., in Better Ceramics Through Chemistry VI, edited by Cheetham, A. K., Brinker, C. J., Mecartney, M. L., and Sanchez, C. (Mater. Res. Soc. Proc. 346, Pittsburgh, PA, 1994) pp. 323–328.Google Scholar
18. Wong, P. W. and Mackenzie, J. D.,in Better Ceramics Through Chemistry VI, edited by Cheetham, A. K., Brinker, C. J., Mecartney, M. L., and Sanchez, C. (Mater. Res. Soc. Proc. 346, Pittsburgh, PA, 1994) pp. 329–333.Google Scholar
19. Ogino, H. and Shimura, M., in Advances in Inorganic and Bioinorganic Mechanisms IV, (Academic Press, Inc., London, 1986) 107.Google Scholar
20. Braun, S., et al., Mater. Lett., 10, 1 (1990).Google Scholar
21. Ellerby, L. M., et al., Science, 255, 1113 (1992).Google Scholar
22. Starodub, N. F., et al., Optical Engineering, 33,[9] 2958 (1994).Google Scholar
23. Pope, E. J. A., in Advances in Fluorescence Sensing Technology II, edited by J. R. Lakowicz (SPIE Proceedings, in press).Google Scholar