Research Papers: Sensing

Illicit drug detection with laser 1: investigation of optimal parameters in stomach tissue

[+] Author Affiliations
Ayşen Gürkan Özer

İstanbul University, Fen Bilimleri ABD, Faculty of Forensic Sciences, Istanbul, Turkey

Istanbul Technical University, Department of Mathematics, Faculty of Sciences and Letters, Istanbul, Turkey

Haşim Özgür Tabakoğlu

Fatih University, Biomedical Engineering Institute, Istanbul, Turkey

Salih Cengiz

İstanbul University, Fen Bilimleri ABD, Faculty of Forensic Sciences, Istanbul, Turkey

J. Biomed. Opt. 19(5), 057006 (May 09, 2014). doi:10.1117/1.JBO.19.5.057006
History: Received September 13, 2013; Revised March 27, 2014; Accepted April 17, 2014
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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.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Ayşen Gürkan Özer ; Haşim Özgür Tabakoğlu and Salih Cengiz
"Illicit drug detection with laser 1: investigation of optimal parameters in stomach tissue", J. Biomed. Opt. 19(5), 057006 (May 09, 2014). ; http://dx.doi.org/10.1117/1.JBO.19.5.057006


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