JOURNAL ARTICLE

Trace detection of explosives from Langmuir–Blodgett film substrates: A SERS study.

  • Published In: Bulletin of Materials Science, 2026, v. 49, n. 2. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Mitra, Chayan Kumar; Chowdhury, Joydeep 3 of 3

Abstract

This study focused on the fabrication of an efficient noble-metal-based surface-enhanced Raman scattering (SERS)-active hetero-architecture comprising gold-core silver-shell nanoparticles (Ag@Au nanoparticles) embedded in a Langmuir–Blodgett (LB) film matrix of hexagonal boron nitride (h-BN), and the evaluation of its efficacy for the trace detection of explosives picric acid (PA) and 2,4-dinitrotoluene (DNT). The efficiency and reproducibility of the as-prepared substrate as a SERS-active platform were investigated down to ultrasensitive concentrations using Raman probe molecules. Furthermore, the SERS-active scaffold exhibited high sensitivity and selectivity in detecting PA and DNT at trace concentrations in both aqueous media and simulated debris environments. The corresponding limits of detection (LODs) were also estimated. In the present study, the as-prepared substrate demonstrates its precision and efficiency as a SERS sensing platform, which can be utilized in the future for the trace detection of chemical and biochemical compounds, in addition to its potential applications in diagnostics. [ABSTRACT FROM AUTHOR]

Additional Information

  • Source:Bulletin of Materials Science. 2026/06, Vol. 49, Issue 2, p1
  • Document Type:Article
  • Subject Area:History
  • Publication Date:2026
  • ISSN:0250-4707
  • DOI:10.1007/s12034-026-03594-8
  • Accession Number:193389845
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