Incorporating hydrogels into fingermark development: indicative viscosities for preserving ridge detail on paper surfaces
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Hopkins, Scarlet L
Gee, William J
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Abstract
Water-based fingermark development treatments for paper have long been held back by loss of ridge detail due to diffusion. Viscous hydrogels (≥2224 cP) show promise as a green method of delivering chemical developers that inhibits diffusion, thereby preserving fingermark ridge detail. This is demonstrated here with starch and xanthan gum hydrogels applied to iodine-fumed fingermarks.
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Analytical Methods
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14
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44
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© 2022 Royal Society of Chemistry. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
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Analytical chemistry
Forensic chemistry
Science & Technology
Physical Sciences
Life Sciences & Biomedicine
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Chemistry, Analytical
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Clarke, KT; Hopkins, SL; Gee, WJ, Incorporating hydrogels into fingermark development: indicative viscosities for preserving ridge detail on paper surfaces, Analytical Methods, 2022, 14 (44), pp. 4460-4465