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Journal of Biomedical Optics

Illicit drug detection with laser 1: investigation of optimal parameters in stomach tissue
Author(s): Ayşen Gürkan Özer; Haşim Özgür Tabakoğlu; Salih Cengiz
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Paper Abstract

The main purpose of this study is to establish radiation-safe scanning of passersby at high security areas, such as airports and customs. The stomach was selected as the organ to be analyzed. In order to determine whether a substance found inside a human body as wrapped in a plastic bag is filled narcotics or not, many substances in white powder form including morphine-HCL were inspected. Inspection was carried out with on-ionizing radiation by irradiating stomach tissue with laser light. Optical transmittance of lamb stomach tissue was analyzed at different wavelengths. We showed that detection by 650-nm diode laser irradiation would be suitable for such a radiation-safe scan. Different materials were also investigated for absorptive properties, and closed system Raman studies were performed. The spectrum of a molecule found inside white powder placed behind the lamb stomach tissue was detected as a fingerprint. This allowed the detection of target substances without any physical contact or damage to the biological tissue.

Paper Details

Date Published: 9 May 2014
PDF: 6 pages
J. Biomed. Opt. 19(5) 057006 doi: 10.1117/1.JBO.19.5.057006
Published in: Journal of Biomedical Optics Volume 19, Issue 5
Show Author Affiliations
Ayşen Gürkan Özer, Istanbul Univ. (Turkey)
Istanbul Technical Univ. (Turkey)
Haşim Özgür Tabakoğlu, Fatih Üniv. (Turkey)
Salih Cengiz, Istanbul Univ. (Turkey)

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