Optical and electrical characterization of natural and synthetic melanin

R. D. Glickman, D. K. Sardar, F. S. Salinas, M. C. Hobbs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The optical properties of natural and synthetic melanin have been characterized for a number of laser wavelengths in the visible region. Natural melanin was prepared from hydrolyzed melanosomes isolated from normal, bovine retinal pigment epithelium. The inverse adding doubling method based on the diffusion approximation and radiative transport theory was employed to determine the absorption scattering, and scattering anisotropy coefficients of melanin from the measurements of diffuse transmission, diffuse reflection and collimated transmission using double integrating spheres. The results obtained by the use of the inverse adding doubling method were compared to the Monte Carlo simulation technique. Characterization of melanin is now being extended to include electrical photoconductivity of melanin thin films on a semiconductor substrate.

Original languageEnglish (US)
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Pages2253-2254
Number of pages2
Volume3
StatePublished - 2002
EventProceedings of the 2002 IEEE Engineering in Medicine and Biology 24th Annual Conference and the 2002 Fall Meeting of the Biomedical Engineering Society (BMES / EMBS) - Houston, TX, United States
Duration: Oct 23 2002Oct 26 2002

Other

OtherProceedings of the 2002 IEEE Engineering in Medicine and Biology 24th Annual Conference and the 2002 Fall Meeting of the Biomedical Engineering Society (BMES / EMBS)
CountryUnited States
CityHouston, TX
Period10/23/0210/26/02

Keywords

  • Electrical
  • Lasers
  • Melanin
  • Optical properties
  • Photoconductivity
  • Radiative transport

ASJC Scopus subject areas

  • Bioengineering

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  • Cite this

    Glickman, R. D., Sardar, D. K., Salinas, F. S., & Hobbs, M. C. (2002). Optical and electrical characterization of natural and synthetic melanin. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 3, pp. 2253-2254)