Fluorescent-Labeled Octasilsesquioxane Nanohybrids as Potential Materials for Latent Fingerprinting Detection

Dare, Enock O. and Vendrell-Criado, Victoria and Consuelo Jimenez, M. and Perez-Ruiz, Raul and Diaz Diaz, David (2020) Fluorescent-Labeled Octasilsesquioxane Nanohybrids as Potential Materials for Latent Fingerprinting Detection. CHEMISTRY-A EUROPEAN JOURNAL, 26 (58). pp. 13142-13146. ISSN 0947-6539, 1521-3765

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Abstract

The recent demand for fluorescent-labeled materials (FLMs) in forensic security concepts such as latent fingerprints (LFs) that encode information for anti-counterfeiting and encryption of confidential data makes necessary the development of building new and innovative materials. Here, novel FLMs based on polyhedral oligomeric silsesquioxanes (POSS) functionalized with fluorophores via "click" reactions have been successfully synthesized and fully characterized. A comprehensive study of their photophysical properties has displayed large Stokes's shift together with good photostability in all cases, fulfilling the fundamental requisites for any legible LF detection on various surfaces. The excellent performance of the hetero-bifunctional FLM in the visualization of LF is emphasized by their legibility, selectivity, sensitivity and temporal photostability. In this study, development mechanisms have been proposed and the overall concept constitute a novel approach for vis-a-vis forensic investigations to trace an individual's identity.

Item Type: Article
Uncontrolled Keywords: POLYHEDRAL OLIGOMERIC SILSESQUIOXANES; CLICK CHEMISTRY; NANOPARTICLES; POSS; NANOCRYSTALS; DESIGN; PYRENE; PROBE; click chemistry; fingerprint identification; fluorophores; photostability; silsesquioxanes
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Organische Chemie
Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. David Díaz Díaz
Depositing User: Dr. Gernot Deinzer
Date Deposited: 11 Mar 2021 12:05
Last Modified: 11 Mar 2021 12:05
URI: https://pred.uni-regensburg.de/id/eprint/43785

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