SERS substrate for detection of explosives
Alison Chou,Esa Jaatinen,Ričardas Buividas,Gediminas Seniutinas,Saulius Juodkazis,Saulius Juodkazis,Emad L. Izake,Peter M. Fredericks +7 more
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TLDR
In this paper, a gold-coated femtosecond laser nanostructured sapphire surface was used to detect taggants in explosives, which can undertake as part of an integrated security or investigative mission.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.read more
Citations
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Journal ArticleDOI
Review of SERS Substrates for Chemical Sensing.
TL;DR: A review of the most common metallic SERS substrates for chemical detection only is discussed, as well as SERS paradigms that are commercially available that have been addressed.
Journal ArticleDOI
Explosive and chemical threat detection by surface-enhanced Raman scattering: A review
TL;DR: The prospects of SERS becoming a major tool for convenient in-situ threat identification and existing SERS detection methods and substrates are discussed, with particular focus on ultra-sensitive real-time detection.
Journal ArticleDOI
Review of Surface Enhanced Raman Scattering Applications in Forensic Science.
Journal ArticleDOI
Recent progress in surface enhanced Raman spectroscopy for the detection of environmental pollutants
TL;DR: The surface enhanced Raman spectroscopy (SERS) has emerged as one of the most promising analytical tools in recent years as mentioned in this paper. But its performance has not yet reached the state-of-the-art.
Journal ArticleDOI
Detection of heavy metal ions in contaminated water by surface plasmon resonance based optical fibre sensor using conducting polymer and chitosan
Roli Verma,Banshi D. Gupta +1 more
TL;DR: The cadmium ions bind strongly to the sensing surface than other ions and due to this the sensor is highly sensitive for Cd(2+) ions.
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