Localised surface plasmon resonance spectroscopy: naked nanoparticle sensing

Autor:	Spear, J. L., Pliatsikas, N., Kalfagiannis, N., Patsalas, P., Koutsogeorgis, D. C.
Rok vydání:	2017
Předmět:	Physics - Instrumentation and Detectors Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
Popis:	We present a simplified yet sophisticated variation to localised surface plasmon resonance spectroscopy, which makes use of naked or non-functionalised, nanoparticle templates. These nanoparticle templates, produced with a rapid and scalable process, namely laser annealing, were used as a highly sensitive surface sensor to monitor the adsorption of both metallic lead and a lead salt from aqueous solutions, showing a measurable optical response due to a surface abundance of lead as low as 100 ppm from 0.3 ml of Pb2SO4 solutions, with concentrations less than 20 ppm. This proposed method enables the end user to rapidly assess the surface abundance of lead from a simple optical reflectance measurement and could serve as a platform for in situ analysis within water filtration and cleaning systems. Comment: 3 pages & 3 figures, research letter
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1702.00004 Zobrazit plný text záznamu View this record from Arxiv