Related Experiment Video
Updated: Mar 17, 2026
Attaching Biological Probes to Silica Optical Biosensors Using Silane Coupling Agents
Published on: May 1, 2012
Rapid Imaging of Latent Fingerprints Using Biocompatible Fluorescent Silica Nanoparticles
Young-Jae Kim1, Hak-Sung Jung2, Joohyun Lim3
1Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University , Seoul 08826, South Korea.
Abstract:
Fluorescent silica nanoparticles (FSNPs) are synthesized through the Stöber method by incorporating silane-modified organic dye molecules. The modified fluorescent organic dye molecule is able to be prepared by allylation and hydrosilylation reactions. The optical properties of as-prepared FSNPs are shown the similar optical properties of PR254A (allylated Pigment Red 254) and have outstanding photostability. The polyvinylpyrrolidone (PVP) is introduced onto the surface of FSNP to enhance the binding affinity of PVP-coated FSNP for latent fingerprints (LFPs) detection. The simple preparation and easy control of surface properties of FSNPs show potential as a fluorescent labeling material for enhanced latent fingerprint detection on hydrophilic and hydrophobic substrates in forensic science for individual identification.
