Skip to main content

Accumulation of Explosives in Hair—Part 3: Binding Site Study*

Buy Article:

$51.00 plus tax (Refund Policy)


Abstract:  This study extends previous work on the sorption of explosives to the hair matrix. Specifically, we have studied the interaction of 2,4,6‐trinitrotoluene (TNT) and triacetone triperoxide (TATP) as a function of chemical pretreatment with acetonitrile, neutral and alkaline hydrogen peroxide, methanolic KOH and potassium permanganate, and the morphological changes that accompany these treatments. While differences in vapor pressure can account for quantitative differences between TNT and TATP sorption, both are markedly affected by the chemical rinses. Examination of the hair surface shows different degrees of smoothening following rinsing, suggesting that the attachment to hair is largely a surface phenomenon involving the 18‐methyleicosanoic acid lipid layer. Density functional theory calculations were employed to explore possible nucleation sites of TATP microcrystals on the hair. We conclude that some of the sites on melanin granular surfaces may support nucleation of TATP microcrystals. Moreover, the calculations support the experimental finding that dark hair adsorbs explosives better than light hair.

Document Type: Research Article


Affiliations: 1: Department of Chemistry, University of Rhode Island, Kingston, RI 02881. 2: Department of Organic Chemistry, Weizmann Institute of Science, 76100 Rehovot, Israel. 3: Department of Biomedical Engineering, Ben Gurion University, Beer Sheva 84105, Israel.

Publication date: May 1, 2012

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more