Crop Protection Chemicals Division and AcSIR-Indian Institute of Chemical Technology, Uppal Road Tarnaka, Hyderabad 500007, India.
Methods Appl Fluoresc. 2018 Apr 25;6(3):035004. doi: 10.1088/2050-6120/aabe02.
Present work is conducted to demonstrate the use of pyrene for the development of latent fingermarks. Pyrene formulation with binders can be efficiently used for developing latent fingermarks on porous, non-porous and semi-porous surfaces. The effectiveness of pyrene formulation for the detection of latent fingermarks present on a large variety of objects was systematically and comparatively carried out. To optimize the working formulation, studies were carried out using different pyrene concentrations followed by various substrate study, time dependent study, temperature study, depleted fingermark development and the stability of the proposed formulation. When illuminated at 366 nm, the developed fingermarks showed clear, high contrast primary, secondary and tertiary level ridge details. This work reveals that the fluorescent molecules having high quantum yield are a versatile fluorescent label and can find their applications in forensic latent fingermark development.
本工作旨在展示芘在潜在指印显现中的应用。与粘合剂配合使用的芘制剂可有效地在多孔、非多孔和半多孔表面上显现潜在指印。系统地和比较地进行了芘制剂对存在于各种不同物体上的潜在指印的检测效果的研究。为了优化工作制剂，进行了不同芘浓度的研究，随后进行了各种基底研究、时间依赖性研究、温度研究、耗尽指印显现和所提出制剂的稳定性研究。当用 366nm 光照射时，显现出的指印显示出清晰、高对比度的一级、二级和三级水平脊纹细节。这项工作表明，具有高量子产率的荧光分子是一种通用的荧光标记物，可以在法医潜在指印显现中找到应用。
