LUMS School of Science & Engineering (SSE), D.H.A., Lahore Cantt, 54792, Pakistan.
Nanoscale. 2010 Dec;2(12):2575-8. doi: 10.1039/c0nr00593b. Epub 2010 Oct 20.
Latent fingerprints are made visible in a single step by in situ growth of gold nanoparticles on ridge patterns. The chemicals, among the essential components of human sweat, found responsible for the formation and assembly of gold nanoparticles are screened and used as ink to write invisible patterns, using common ball pen and inkjet printer, which are then developed by selectively growing gold nanoparticles by soaking them in gold salt solution.
潜伏指纹通过在脊纹图案上原位生长金纳米粒子一步即可显现。作为人汗水中的重要成分，负责金纳米粒子形成和组装的化学物质被筛选出来，并用作墨水，使用普通的圆珠笔和喷墨打印机，以看不见的图案书写，然后通过将其浸泡在金盐溶液中选择性地生长金纳米粒子来进行显影。
