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Related Experiment Video

Updated: Jun 27, 2026

Diffuse Reflectance Infrared Spectroscopic Identification of Dispersant/Particle Bonding Mechanisms in Functional Inks
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Fingerprint and inkjet-trace imaging using disulfur dinitride.

Paul F Kelly1, Roberto S P King, Roger J Mortimer

  • 1Department of Chemistry, Loughborough University, Leics, UK LE11 3TU. P.F.Kelly@lboro.ac.uk

Chemical Communications (Cambridge, England)
|December 17, 2008
PubMed
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New research reveals sulfur-nitrogen (S-N) polymer imaging for latent fingerprints on diverse surfaces. This method utilizes S(2)N(2) vapor to visualize prints by forming (SN)(x) polymers, even from trace ink interactions.

Area of Science:

  • Forensic Science
  • Materials Science
  • Chemistry

Background:

  • Latent fingerprint visualization is crucial for forensic investigations.
  • Developing new methods for detecting fingerprints on various media remains a challenge.
  • Existing techniques may require specific substrates or complex chemical treatments.

Purpose of the Study:

  • To investigate the potential of sulfur-nitrogen (S(2)N(2)) vapor for latent fingerprint imaging.
  • To explore the formation of polymeric (SN)(x) for visualizing fingerprints on a wide range of materials.
  • To determine if S(2)N(2) can interact with trace ink residues to enhance fingerprint detection.

Main Methods:

  • Exposure of latent fingerprints to S(2)N(2) vapor.
  • Analysis of polymer formation on different surfaces.

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Published on: December 9, 2011

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Last Updated: Jun 27, 2026

Diffuse Reflectance Infrared Spectroscopic Identification of Dispersant/Particle Bonding Mechanisms in Functional Inks
10:31

Diffuse Reflectance Infrared Spectroscopic Identification of Dispersant/Particle Bonding Mechanisms in Functional Inks

Published on: May 8, 2015

Atomically Traceable Nanostructure Fabrication
12:35

Atomically Traceable Nanostructure Fabrication

Published on: July 17, 2015

Planar and Three-Dimensional Printing of Conductive Inks
10:49

Planar and Three-Dimensional Printing of Conductive Inks

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  • Investigation of interactions between S(2)N(2) and inkjet ink residues.

    • Main Results:

    • Successful visual imaging of fingerprints using polymeric (SN)(x) on an unprecedented range of media.
    • Demonstration that the polymer forms in response to S(2)N(2) interaction with trace inkjet inks.
    • Effective visualization of fingerprints from minute ink traces, such as those found on envelopes from printed paper.

    Conclusions:

    • S(2)N(2) vapor provides a novel and versatile method for latent fingerprint visualization.
    • The formation of (SN)(x) polymer offers a new pathway for developing latent prints across diverse substrates.
    • This technique shows promise for forensic applications, particularly in detecting prints from trace ink evidence.