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Oxidation Numbers03:14

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Author Spotlight: Exploring the Antibacterial Effects of Zinc Oxide Nanoparticles in Overcoming Antibiotic Resistance
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Latent fingermark detection using functionalised silicon oxide nanoparticles: Method optimisation and evaluation.

Po Lun Timothy Lee1, Fehmida K Kanodarwala2, Chris Lennard1

  • 1Western Sydney University, School of Science and Health, Richmond, NSW, 2753, Australia.

Forensic Science International
|April 1, 2019
PubMed
Summary
This summary is machine-generated.

Carboxyl-functionalised silicon oxide nanoparticles (SiO2 NPs) offer a promising method for detecting latent fingermarks. Optimized parameters, including lower NP concentration and adjusted temperature/time, significantly improve detection effectiveness and applicability.

Keywords:
Bath temperatureColloidalDetection effectivenessLuminescence techniqueMethod modificationSurface functionalisation

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Area of Science:

  • Forensic Science
  • Materials Science
  • Analytical Chemistry

Background:

  • Nanoparticles have been explored for latent fingermark detection for two decades.
  • Carboxyl-functionalised silicon oxide nanoparticles (SiO2 NPs) doped with ruthenium complex show potential for routine use.

Purpose of the Study:

  • To extensively evaluate functionalised SiO2 NPs for latent fingermark detection.
  • To modify and optimise existing detection parameters for enhanced quality and applicability.

Main Methods:

  • Systematic modification and assessment of various detection parameters.
  • Evaluation of functionalised SiO2 NPs concentration, bath temperature, and immersion time.
  • Comparative analysis of modified parameters against previously published methods on diverse surfaces and fingermark ages.

Main Results:

  • Lower concentrations of functionalised SiO2 NPs in colloidal dispersion improved detection effectiveness.
  • Optimised parameters (increased bath temperature, reduced immersion time) yielded superior results.
  • Modified method demonstrated enhanced performance over the published technique across different substrates and fingermark ages.

Conclusions:

  • Modified detection parameters significantly enhance the effectiveness of functionalised SiO2 NPs for latent fingermark detection.
  • The optimised method offers improved applicability and superior performance compared to previous approaches.