Nanoscale 2012-12-07

SERS substrate for detection of explosives.

Alison Chou, Esa Jaatinen, Ricardas Buividas, Gediminas Seniutinas, Saulius Juodkazis, Emad L Izake, Peter M Fredericks

Index: Nanoscale 4(23) , 7419-24, (2012)

Full Text: HTML

Abstract

A novel gold coated femtosecond laser nanostructured sapphire surface - an "optical nose" - based on surface-enhanced Raman spectroscopy (SERS) for detecting vapours of explosive substances was investigated. Four different nitroaromatic vapours at room temperature were tested. Sensor responses were unambiguous and showed response in the range of 0.05-15 μM at 25 °C. The laser fabricated substrate nanostructures produced up to an eight-fold increase in Raman signal over that observed on the unstructured portions of the substrate. This work demonstrates a simple sensing system that is compatible with commercial manufacturing practices to detect taggants in explosives which can undertake as part of an integrated security or investigative mission.

Related Compounds

  • nitrobenzene
  • 2,4-Dinitrotoluene
  • 4-Nitroaniline

Related Articles:

Macromolecular Systems with MSA-Capped CdTe and CdTe/ZnS Core/Shell Quantum Dots as Superselective and Ultrasensitive Optical Sensors for Picric Acid Explosive.

2015-11-11

[ACS Appl. Mater. Interfaces 7 , 24778-90, (2015)]

Optimizations of packed sorbent and inlet temperature for large volume-direct aqueous injection-gas chromatography to determine high boiling volatile organic compounds in water.

2014-08-22

[J. Chromatogr. A. 1356 , 221-9, (2014)]

Self-assembled cardanol azo derivatives as antifungal agent with chitin-binding ability.

2014-08-01

[Int. J. Biol. Macromol. 69 , 5-11, (2014)]

Application of nonionic surfactant as a new method for the enhancement of electromembrane extraction performance for determination of basic drugs in biological samples.

2015-01-23

[J. Chromatogr. A. 1378 , 1-7, (2015)]

Synergistic role of different soil components in slow sorption kinetics of polar organic contaminants.

2014-01-01

[Environ. Pollut. 184 , 123-30, (2014)]

More Articles...