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Updated: Mar 23, 2026

Conducting Multiple Imaging Modes with One Fluorescence Microscope
Published on: October 28, 2018
NIR-NIR fluorescence: A new genre of fingermark visualisation techniques
Roberto S P King1, Peter M Hallett1, Doug Foster1
1Foster+Freeman Ltd, Vale Park, Evesham, Worcestershire WR11 1TD, UK.
Abstract:
A preliminary study reveals that finely divided cuprorivaite powder may be used to efficiently develop and subsequently image latent fingermarks across a range of highly patterned, coloured non-porous and semi-porous substrates using near infrared illumination and imaging. Problematic multi-coloured backgrounds provide very little interference under the illumination conditions used, and invoked fluorescence observed, when using this material. This is the first reported example of a NIR-NIR fluorophore for use within latent fingermark visualisation and offers the potential for application at the scene and in the laboratory.
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