A method for in situ preparation of fluorescent AuNPs@AuNCs core/shell nanoparticles by the template of BSA coated gold nanoparticles was developed. The as-prepared AuNPs@AuNCs core/shell nanoparticles possessed advantages such as uniform size, improved monodispersity and excellent fluorescence. The AuNPs@AuNCs core/shell nanoparticles in powder and suspension form were applied to the detection of latent fingermark due to the above properties. The developed latent fingermarks by AuNPs@AuNCs core/shell powder on various surfaces can exhibit excellent ridge details with good contrast between the fingermarks and the substrate. Moreover, under alternative light sources, the latent fingermarks developed with AuNPs@AuNCs core/shell powder work well.

中文翻译：

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使用 AuNPs@AuNCs 核/壳纳米粒子开发用于可视化的潜在指纹

开发了一种以BSA包覆金纳米粒子为模板原位制备荧光AuNPs@AuNCs核/壳纳米粒子的方法。所制备的AuNPs@AuNCs核/壳纳米粒子具有尺寸均匀、单分散性好、荧光性好等优点。由于上述特性，AuNPs@AuNCs 核/壳纳米颗粒以粉末和悬浮液形式应用于潜指纹的检测。AuNPs@AuNCs核/壳粉末在各种表面上开发的潜在指纹可以表现出优异的脊细节，指纹和基板之间具有良好的对比度。此外，在替代光源下，使用 AuNPs@AuNCs 核/壳粉末开发的潜指纹效果很好。