de la Hunty Mackenzie, Spindler Xanthe, Chadwick Scott, Lennard Chris, Roux Claude
Centre for Forensic Science, University of Technology, Sydney, PO Box 123, Broadway, NSW 2007, Australia.
School of Science and Health, University of Western Sydney, Richmond, NSW 2753, Australia.
Forensic Sci Int. 2014 Nov;244:e48-55. doi: 10.1016/j.forsciint.2014.08.028. Epub 2014 Sep 4.
An oil-in-water microemulsion containing a luminescent dye, nile red, has been synthesised using a solvent-diffusion method. This has been demonstrated to be effective in developing fresh latent fingermarks on porous surfaces. The working solution is made using a binary surfactant solution to create a lactescent dual organic-aqueous phase intermediate, which subsequently results in a transparent microemulsion after the organic solvent has evaporated. The solution is non-toxic and performs comparatively with a previously published methanolic formulation but at a much lower cost and with an extended shelf life. The microemulsion outperforms a previously reported aqueous nile blue formulation for the development of both charged and natural fresh fingermarks, and requires lower exposure times for image recording.
采用溶剂扩散法合成了一种含有发光染料尼罗红的水包油型微乳液。已证明该微乳液在多孔表面上显现新鲜潜在指纹方面有效。工作溶液是用二元表面活性剂溶液制成的，以形成乳状的双有机 - 水相中间体，在有机溶剂蒸发后，该中间体随后会形成透明的微乳液。该溶液无毒，与先前发表的甲醇制剂相比性能相当，但成本低得多且保质期更长。对于带电荷和天然新鲜指纹的显现，该微乳液优于先前报道的尼罗蓝水性制剂，并且图像记录所需的曝光时间更短。
