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Proceedings 2017, 1(4), 427; doi:10.3390/proceedings1040427

Interaction of Colloidal Silver Nanoparticles with Ni2+: Sensing Application

1
Department of Industrial Engineering and INSTM, University of Rome, Tor Vergata, via del Politecnico 1, 00133 Rome, Italy
2
Center for Regenerative Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy
3
Department of Chemistry, University of Rome Sapienza, Rome, P.le A. Moro 5, 00187 Rome, Italy
4
Department of Science, Roma Tre University of Rome Via della Vasca Navale 79, 00146 Rome, Italy
5
INAIL, Monte Porzio Catone Via di Fontana Candida 1, 00078 Rome, Italy
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 18 August 2017
(This article belongs to the Proceedings of Eurosensors 2017)
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Abstract

We report on synthesis of silver nanoparticles (AgNPs) capped with specific thiol suitable to detect heavy metal ions in water. The sensing mechanism is based on a change of an optical properties of the silver colloids, namely the surface plasmon resonance (SPR) when small amounts of contaminants are present in solution. We detected a specific sensitivity to nickel ions and we investigated the interaction of the AgNPs with Ni2+ in the concentration range of 0.5–2.0 ppm.
Keywords: silver nanoparticles; surface plasmon resonance; heavy metal ions; optical sensors; optical absorption silver nanoparticles; surface plasmon resonance; heavy metal ions; optical sensors; optical absorption
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Mochi, F.; Venditti, I.; Fratoddi, I.; Battocchio, C.; Carlini, L.; Iucci, G.; Casalboni, M.; Matteis, F.D.; Casciardi, S.; Prosposito, P. Interaction of Colloidal Silver Nanoparticles with Ni2+: Sensing Application. Proceedings 2017, 1, 427.

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