TY - JOUR
T1 - High-resolution visualization of level 3 details for latent fingerprints with color-tunable BODIPY dyes
AU - Zhu, Senqiang
AU - Liao, Haitao
AU - Guo, Tianyi
AU - Jiang, Wenjie
AU - Liu, Rui
AU - Zhu, Hongjun
N1 - Publisher Copyright:
© 2025 Elsevier B.V.
PY - 2025/6/15
Y1 - 2025/6/15
N2 - 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.
AB - 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.
KW - BODIPY dyes
KW - Color-tunable
KW - High-efficiency
KW - Latent fingerprints detection
KW - Spray method
UR - http://www.scopus.com/inward/record.url?scp=85219042238&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2025.137518
DO - 10.1016/j.snb.2025.137518
M3 - 文章
AN - SCOPUS:85219042238
SN - 0925-4005
VL - 433
JO - Sensors and Actuators B: Chemical
JF - Sensors and Actuators B: Chemical
M1 - 137518
ER -
