We have recently demonstrated that coated exfoliated Egyptian blue powder is effective for detecting latent fingermarks on a range of highly-patterned non-porous and semi-porous surfaces. In this extension of that work, we present our studies into an alternative approach to prepare exfoliated Egyptian blue coated with cetrimonium bromide and Tween® 20 using a simpler technique. The quality of the latent fingermarks developed with these exfoliated powders and the commercial powder were compared in a comprehensive study. Depletion series of natural fingermarks from a wide range of donors (12 males and females) deposited on non-porous (glass slides) and semi-porous (Australian banknotes) surfaces were used in this study. Enhancement in the performance of the coated exfoliated particles compared to the commercial powder was observed, particularly in the case of aged fingermarks and polymer banknotes as challenging substrates.

中文翻译：

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埃及蓝在甲醇中的剥离和涂层用于检测潜在指纹的研究

我们最近证明，涂层的去角质埃及蓝粉末可有效检测一系列高度图案化的无孔和半孔表面上的潜在指纹。在这项工作的扩展中，我们将我们的研究呈现为使用更简单的技术制备涂有西曲溴铵和 Tween® 20 的去角质埃及蓝的替代方法。在一项综合研究中比较了用这些去角质粉末和商业粉末产生的潜在指纹的质量。本研究使用了沉积在无孔（玻璃载玻片）和半孔（澳大利亚钞票）表面上的来自各种捐赠者（12 名男性和女性）的自然指纹系列。观察到与市售粉末相比，包覆的剥落颗粒的性能增强，