彩色可调体脂染料潜在指纹3级细节的高分辨率可视化

IF 3.7 1区化学 Q1 CHEMISTRY, ANALYTICAL

Sensors and Actuators B: Chemical Pub Date : 2025-02-25 DOI:10.1016/j.snb.2025.137518

Senqiang Zhu, Haitao Liao, Tianyi Guo, Wenjie Jiang, Rui Liu, Hongjun Zhu

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引用次数: 0

摘要

潜在指纹检测在刑事侦查中起着至关重要的作用，尤其是对犯罪嫌疑人的识别。本研究设计并合成了4种硼-二吡咯甲烷（BODIPY）染料（BDP-G、BDP-Y、BDP-O、BDP-R），具有50%以上的绝对荧光量子产率和良好的亲脂性，有利于高效检测lfp。在低浓度条件下（10 μM），该检测溶液可以在10 s内采用喷涂方法对各种基材（锡纸、硬币、玻璃、纸板、桌面、钢材）上的lfp进行高效、便捷的检测。检测解决方案具有优异的稳定性，允许存储长达30天。通过Knoevenagel缩合反应加入各种给电子基团，实现了从绿色到红色的颜色调制。这种调制有效地解决了复杂的背景颜色，确保了对不同颜色背景的lfp的最佳检测。这些进步大大提高了调查人员的效率，并大大提高了案件解决的成功率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

High-resolution visualization of level 3 details for latent fingerprints with color-tunable BODIPY dyes

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High-resolution visualization of level 3 details for latent fingerprints with color-tunable BODIPY dyes

Latent fingerprints (LFPs) detection plays a crucial role in criminal investigations, particularly for suspect identification. In this study, we designed and synthesized four Boron-dipyrromethene (BODIPY) dyes (BDP-G, BDP-Y, BDP-O, BDP-R), which demonstrate over 50 % absolute fluorescence quantum yield and good lipophilicity, facilitating efficient detection of LFPs. Under low-concentration conditions (10 μM), the detection solution can efficiently and conveniently detect LFPs on various substrates (tinfoil, coins, glass, cardboard, desktops, steel) within 10 s using the spraying method. The detection solution exhibits excellent stability, allowing storage for up to 30 days. Color modulation from green to red was achieved through the incorporation of various electron-donating groups via Knoevenagel condensation reactions. This modulation effectively addresses complex background colors, ensuring optimal detection of LFPs against diverse color backgrounds. These advancements significantly enhance investigators' efficiency and substantially improve the success rate of case resolutions.

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来源期刊

Sensors and Actuators B: Chemical 工程技术-电化学

CiteScore

14.60

自引率

11.90%

发文量

1776

审稿时长

3.2 months

期刊介绍： Sensors & Actuators, B: Chemical is an international journal focused on the research and development of chemical transducers. It covers chemical sensors and biosensors, chemical actuators, and analytical microsystems. The journal is interdisciplinary, aiming to publish original works showcasing substantial advancements beyond the current state of the art in these fields, with practical applicability to solving meaningful analytical problems. Review articles are accepted by invitation from an Editor of the journal.