NaYF4 Upconversion Nanoparticles Coated with Zinc Bzimpy for High-Resolution Dual-Mode Visualization of Latent Fingerprints DOI

Xiaodan Zhu,

Honghong Li,

Yali Liu

и другие.

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Язык: Английский

Daylight Visualization of Latent Fingerprints Exceeding Level 3 Details through Contradictory Electrostatic and Hydrogen-Bonding Interactions DOI

Q. Huo,

Shengyu Feng, Dengxu Wang

и другие.

ACS Sensors, Год журнала: 2025, Номер unknown

Опубликована: Фев. 12, 2025

Daylight visualization of latent fingerprints (LFPs) is highly desirable due to its convenience and safety for inspectors. However, achieving this with details exceeding level 3 using nontoxic materials presents a significant challenge. Here, we address challenge by utilizing cyclosiloxane-linked fluorescent porous polymers (FPPs) as the developers. These FPPs were synthesized from 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane brominated monomers via Heck reactions. The resulting FPPs, available powders in various colors, exhibit high porosity strong fluorescence. By employing classical powder dusting method LFPs 1–3 become visible on substrates, including copper, iron, aluminum, tinfoil, wood, under daylight. This approach provides resolution contrast resistance background interference colored substrates. efficient attributed contradictory electrostatic hydrogen-bonding interactions between fingerprint secretions, which ensure adhesion exclusively ridges rather than furrows. Furthermore, are noncytotoxic do not impede DNA extraction identification after LFP visualization. study represents first example daylight surpassing developers, thereby mitigating risks associated material toxicity light exposure findings highlight potential developers crime scenes. straightforward broadly applicable protocol may pave way further advancements methods LFPs.

Язык: Английский

Процитировано

0
High-Resolution Visualization of Level 3 Details for Latent Fingerprints with Color-Tunable BODIPY Dyes DOI

Senqiang Zhu,

Haitao Liao, T.C. Guo

и другие.

Sensors and Actuators B Chemical, Год журнала: 2025, Номер 433, С. 137518 - 137518

Опубликована: Фев. 25, 2025

Язык: Английский

Процитировано

0
Two Schiff Bases with ─N═CH─ Fragment at Different Positions of the Pyridine Skeleton on Photophysical Performances and Their Latent Fingerprint Detection DOI
Q. Jiang,

Jiazhuang Tian,

Zhi Peng

и другие.

ChemistrySelect, Год журнала: 2025, Номер 10(17)

Опубликована: Апрель 27, 2025

Abstract To further explore the application of Schiff bases in latent fingerprint detection, two containing ─N═CH─ fragment at different positions on pyridine skeleton, which py‐3‐TPA with 3‐position and that locating 2‐position for py‐2‐TPA , were synthesized. Both displayed solvent‐dependent behaviors organic solvents polarities emission spectra, their solid state luminescent under a UV lamp, both could be well explained by time‐dependent density functional theory calculations, aggregation‐induced properties THF/water mixtures observed. Furthermore, surfaces three substrates visualize using compounds, clearly identify levels fingerprints features details. This work establishes foundation development Schiff‐base fluorescent dyes practical field detection.

Язык: Английский

Процитировано

0
A boronic acid functionalized fully conjugated covalent organic framework for significantly improved affinity and fluorescence detection for sialic acid DOI

Yingfei Hui,

Hao Guo, Mingyue Wang

и другие.

Sensors and Actuators B Chemical, Год журнала: 2025, Номер unknown, С. 137876 - 137876

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
NaYF4 Upconversion Nanoparticles Coated with Zinc Bzimpy for High-Resolution Dual-Mode Visualization of Latent Fingerprints DOI

Xiaodan Zhu,

Honghong Li,

Yali Liu

и другие.

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Язык: Английский

Процитировано

0