Related Experiment Video
Updated: Dec 30, 2025

Multimodal Analysis of Microplastics in Drinking Water using a Silicon Nanomembrane Analysis Pipeline
Published on: June 13, 2025
Nanostructured Silicon-Based Fingerprint Dusting Powders for Enhanced Visualization and Detection by Mass
Taryn M Guinan1, Hilton Kobus2, Yiqing Lu3
1ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
Abstract:
Porous silicon microparticles (pSi MPs) functionalized with fluorescent dyes (lissamine and carboxy-5-fluorescein) and intrinsically luminescent pSi MPs were explored as novel fingerprint dusting powders. The versatility of luminescent pSi MPs is demonstrated through time-gated imaging of their long-lived (lifetime>28 μs) near-IR emission, and mass spectrometry analysis of fingerprints dusted with luminescent pSi MPs to provide further information on exogenous small molecules present in latent fingerprints.

