Luminescence detection of latent fingermarks on non-porous surfaces with heavy-metal-free quantum dots

Loading...
Thumbnail Image
File version

Accepted Manuscript (AM)

Author(s)
Shahbazi, S
Boseley, R
Grant, B
Chen, D
Becker, T
Adegoke, O
Nic Daéid, N
Jia, G
Lewis, SW
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
2020
Size
File type(s)
Location
Abstract

Current and proposed nanoparticle-based techniques for development of latent fingermarks suffer a number of drawbacks such as complicated, multi-step and time-consuming procedures, batch-to-batch variability, expensive reagents, large background noise and toxicity. Here, we introduce a promising green development technique based on heavy-metal-free quantum dots for the detection of latent fingermarks on non-porous surfaces. Red-near infrared luminescent CuInS2/ZnS core/shell quantum dots in aqueous solution were produced in large scales using a simple, fast, water-based method with N-acetylcysteine as a biocompatible surfactant to coat the particles. The coated quantum dots were applied to the successful development of latent fingermarks deposited on a variety of surfaces, including highly patterned polymer banknotes and the sticky side of adhesive tape.

Journal Title

Forensic Chemistry

Conference Title
Book Title
Edition
Volume

18

Issue
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement

© 2020 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.

Item Access Status
Note
Access the data
Related item(s)
Subject

Chemical sciences

Other chemical sciences

Persistent link to this record
Citation

Shahbazi, S; Boseley, R; Grant, B; Chen, D; Becker, T; Adegoke, O; Nic Daéid, N; Jia, G; Lewis, SW, Luminescence detection of latent fingermarks on non-porous surfaces with heavy-metal-free quantum dots, Forensic Chemistry, 2020, 18, pp. 100222

Collections