Volume 42, Issue 24 pp. 3337-3342
Concise Report

Elevating Latent Fingerprint Visualization: Sebaceous Fingerprint Residues-Responsive Fluorescent Powders for Colour-Changing Visual Enhancement

Ying Fang

Ying Fang

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050 China

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Jun-Yu Luan

Jun-Yu Luan

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

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Jian-Shu Zhao

Jian-Shu Zhao

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

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Xiu-Rong Kao

Xiu-Rong Kao

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

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Hao-Rui Song

Hao-Rui Song

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

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Yi-Ning Luo

Yi-Ning Luo

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

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Kun-Peng Wang

Corresponding Author

Kun-Peng Wang

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Shaojin Chen

Shaojin Chen

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

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Hai-Yu Hu

Corresponding Author

Hai-Yu Hu

State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Zhi-Qiang Hu

Corresponding Author

Zhi-Qiang Hu

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
First published: 04 September 2024
Citations: 2

Comprehensive Summary

A new fluorescent fingerprint powder (DFF-MMT) was formulated by blending cyclic chalcone dye DFF with montmorillonite (MMT), which can develop latent fingerprints (LFPs) with exceptional resolution and contrast on various surfaces, including ordinary glass, tin foil, marble, LED screens, and materials with distinct colors and fluorescent backgrounds. The fluorescence of DFF-MMT transforms from orange to bright yellow with LFPs, allowing for a flawless visualization of fingerprints on uneven surfaces or materials with static electricity. Impressively, fingerprints developed by DFF-MMT can be stored for over 21 months and conveniently duplicated. The developed LFPs by DFF-MMT still keep high quality under the influence of aquatic condition, illumination and thermal effects. DFF-MMT also exhibits benefits, such as affordability, real-time, high-resolution, high-contrast development and no damage to DNA, making it an ideal choice for sophisticated criminal investigations.

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