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Observation of Single Nanoparticle Collisions with Green Synthesized Pt, Au, and Ag Nanoparticles Using Electrocatalytic Signal Amplification Method

Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
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Nanomaterials 2019, 9(12), 1695; https://doi.org/10.3390/nano9121695
Received: 7 October 2019 / Revised: 18 November 2019 / Accepted: 19 November 2019 / Published: 27 November 2019
This work describes the tailored design, green synthesis and characterization of noble metal (Pt, Ag and Au) nanoparticles (NPs) using Sapinduss Mukkorossi fruit extract (SMFE) and its signal NP collision signal response, based on the principle of the electrocatatlytic amplication (EA) method. Here, the SMFE can act as both the reducing and the capping agent for the fabrication of noble nanometals. The SMFE-capped NPs was available for the observation of a single NP collision signal. Two general types of current response were observed: a staircase current response for the Pt or Au NPs, and a blip/spike current response for Ag NPs. These results demonstrated that the eco-friendly synthesized SMFE-capped NPs maintained their electrocatalytic activity, therefore they can be used for the single NP experiments and place an arena for future biosensing applications.
Keywords: biosynthesis; single nanoparticle; collision; Pt nanoparticle; Au nanoparticle; Ag nanoparticle biosynthesis; single nanoparticle; collision; Pt nanoparticle; Au nanoparticle; Ag nanoparticle
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MDPI and ACS Style

Sundar, S.; Kim, K.J.; Kwon, S.J. Observation of Single Nanoparticle Collisions with Green Synthesized Pt, Au, and Ag Nanoparticles Using Electrocatalytic Signal Amplification Method. Nanomaterials 2019, 9, 1695.

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