Journal of Integrative Natural Science (통합자연과학논문집)

The Basic Science Institute Chosun University (조선대학교 기초과학연구원)
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Fabrication and Characterization of Silole and Biotin-functionalized Rugate Porous Silicon

  • Received : 2010.02.22
  • Accepted : 2010.03.20
  • Published : 2010.03.31
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Abstract

Multi-functionalized rugate porous silicon (PSi) for biosensor was developed by hydrosilylation with silole and its further reaction with biotin groups. PSi was generated by an electrochemical etching of silicon wafer in aqueous ethanolic HF solution PSi prepared by using etching conditions showed that many sharp spectral lines can be obtained in the optical reflectivity spectrum. 1,1-hydrovinyl-2,3,4,5-tetraphenylsilole was obtained from the reaction of 1,1-dilithio-2,3,4,5-tetraphenyl-1,3-butadiene with dichlorovinylsilane. Multi-functionalized PSi with silole and biotin groups was characterized by UV-vis absorption spectroscopy, Ocean optics 2000 spectrometer, and fluorescence spectroscopy. Optical characteristics such as reflectivity and photoluminescence (PL) were observed. An increase of the reflection wavelength in the reflectivity spectrum by 20 nm was observed, indicative of a change in refractive indices induced by hydrosilylation of the silole and biotin groups to the rugate PSi. This red-shift was attributed to the replacement of some of the Si-H group of fresh rugate PSi with silole and biotin group.

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References

  1. L. T. Canham, "Silicon quantum array fabrication by electrochemical and chemical dissolution os wafers" Appl. Phys. Lett. Vol. 57, pp. 1046, 1990. https://doi.org/10.1063/1.103561
  2. H. Sohn, S. Ltant, M. J. Sailor and W. C. Trogler, "Detection of fluoro phosphonate chemical warfare agents by catalytic hydrolysis with a porous silicon interferometer" J. Am. Chem. Soc. Vol. 122, pp. 5399, 2000. https://doi.org/10.1021/ja0006200
  3. S. Chan, S. R. Horner, B. L. Miller and P. M. Fauchet, "Identification of gram negative bacteria using nanoscale silicon microcavities" J. Am. Chem. Soc. Vol. 123, pp. 11797, 2001. https://doi.org/10.1021/ja016555r
  4. V. Lehmann, R. Stengl, H. Reisinger, R. Detemple and W. Theiss, "Optical shortpass filters based on macroporous silicon" Appl. Phys. Lett. Vol. 78, pp. 589, 2001. https://doi.org/10.1063/1.1334943
  5. L. T. Canham, M. P. Stewart, J. M. Buriak, C. L. Reeves, M. Anderson, E. K. Squire, P. Allcock and P. A. Snow, "Derivatized porous silicon mirrors: implantable optical components with slow resorbability" Phys. Stat. Sol. Vol. 182, pp. 521, 2000. https://doi.org/10.1002/1521-396X(200011)182:1<521::AID-PSSA521>3.0.CO;2-7
  6. Y. Y. Li, F. Cunin, J. R. Link, T. Gao, R. E. Betts, S. H. Reiver, V. C. Sangeeta N and M. J. Sailor, "Polymer replicas of photonic porous silicon for sensing and drug delivery applications." Science Vol. 299, pp. 2045-2047, 2003. https://doi.org/10.1126/science.1081298
  7. F. Cunin, T. A. Schmedake, J. R. Link, Y. Y. Li, J. Koh, S. N. Bhatia and M. J. Sailor, "Biomolecular screening with encoded porous-silicon photonic crystals" Nature Materials Vol. 1, pp. 39, 2002. https://doi.org/10.1038/nmat702
  8. E. H. Braye and W. Hubel, Chem. Ind. pp. 1250, 1959.