Investigation into the binding of gold nanoparticles to fingermarks using scanning electron microscopy
- Publication Type:
- Journal Article
- Journal of Forensic Identification, 2006, 56 (1), pp. 24 - 32
- Issue Date:
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For the first time, scanning electron microscopy has been used to investigate the binding of gold nanoparticles to fingermarks placed on nonporous surfaces. The results show that gold nanoparticles, under standard MMDII conditions, bind preferentially to latent fingermark ridges on nonporous surfaces. Variation in surfactant concentration influences background development but does not affect the binding of gold nanoparticles to the ridges, while pH variation influences the binding to ridges but leaves valley regions unaffected.
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