Time-domain terahertz spectroscopy of artificial skin

Peter M. Corridon, Ricardo Ascázubi, Courtney Krest, Ingrid Wilke

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

19 Scopus citations

Abstract

Time-domain Terahertz (THz) spectroscopy and imaging is currently evaluated as a novel tool for medical imaging and diagnostics. The application of THz-pulse imaging of human skin tissues and related cancers has been demonstrated recently in-vitro and in-vivo. With this in mind, we present a time-domain THz-transmission study of artificial skin. The skin samples consist of a monolayer of porous matrix of fibers of cross-linked bovine tendon collagen and a glycosaminoglycan (chondroitin-6-sulfate) that is manufactured with a controlled porosity and defined degradation rate. Another set of samples consists of the collagen monolayer covered with a silicone layer. We have measured the THz-transmission and determined the index of refraction and absorption of our samples between 0.1 and 3 THz for various states of hydration in distilled water and saline solutions. The transmission of the THz-radiation through the artificial skin samples is modeled by electromagnetic wave theory. Moreover, the THz-optical properties of the artificial skin layers are compared to the THz-optical properties of freshly excised human skin samples. Based on this comparison the potential use of artificial skin samples as photo-medical phantoms for human skin is discussed.

Original languageBritish English
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
DOIs
StatePublished - 2006
EventAdvanced Biomedical and Clinical Diagnostic Systems IV - San Jose, CA, United States
Duration: 22 Jan 200624 Jan 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6080
ISSN (Print)0277-786X

Conference

ConferenceAdvanced Biomedical and Clinical Diagnostic Systems IV
Country/TerritoryUnited States
CitySan Jose, CA
Period22/01/0624/01/06

Keywords

  • Artificial skin
  • Collagen
  • Medical diagnostics
  • Medical phantoms
  • Terahertz transmission specrroscopy

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