Electrochemistry nanoparticles

Keywords Aptamer Biosensor Electrochemistry Nanoparticle Nanoscale... 

Haram SK, Quinn BM, Bard AJ (2001) Electrochemistry of CdS nanoparticles A correlation between optical and electrochemical band gaps. J Am Chem Soc 123 8860-8861... 

Durand R, Faure R, Gloaguen F, Aherdam D. 1996. Oxygen reduction reaction on platinum in acidic medium From bulk material to nanoparticles. In Adzic RR, Anson EC, Kinoshita K. editors. Proceedings of the Symposium on Oxygen Electrochemistry. Pennington, NJ The Electrochemical Society. 

Mayrhofer KJJ, Arenz M, Bhzanac BB, Stamenkovic VR, Ross PN, Markovic NM. 2005a. CO surface electrochemistry on Pt-nanoparticles A selective review. Electrochim Acta 50 5144-5154. 

Reisee et al. [52] first described a pulsed electrodeposition and pulsed out-of-phase ultrasound to prepare copper nanopowders. Such an electrochemical method has since then employed to synthesize a variety of nanoparticles. Mancier et al. [53] have prepared Cu20 nanopowders (8 nm) with very high specific surface area of 2,000 m2/g by pulsed ultrasound assisted-electrochemistry. 

Y. Zhang, P.L. He, and N.F. Hu, Horseradish peroxidase immobilized in Ti02 nanoparticle films on pyrolytic graphite electrodes direct electrochemistry and bioelectrocatalysis. Electrochim. Acta 49, 1981-1988 (2004). 

J.J. Feng, G. Zhao, J.J. Xu, and H.Y. Chen, Direct electrochemistry and electrocatalysis of heme proteins immobilized on gold nanoparticles stabilized by chitosan. Anal. Biochem. 342, 280-286 (2005). 

Z. Li and N.F. Hu, Direct electrochemistry of heme proteins in their layer-by-layer films with clay nanoparticles. J. Electroanal. Chem. 558, 155—165 (2003). 

Lee, C.-L., et al., Preparation of Pt nanoparticles on carbon nanotubes and graphite nanofibers via self-regulated reduction of surfactants and their application as electrochemical catalyst. Electrochemistry Communications, 2005. 7(4) p. 453-458. 

Wang, L., et al., A novel hydrogen peroxide sensor based on Ag nanoparticles etectrodeposited on chitosan-graphene oxide/cysteamine-modified gold electrode. Journal of Solid State Electrochemistry, 2012.16(4) p. 1693-1700. 

The lure of new physical phenomena and new patterns of chemical reactivity has driven a tremendous surge in the study of nanoscale materials. This activity spans many areas of chemistry. In the specific field of electrochemistry, much of the activity has focused on several areas (a) electrocatalysis with nanoparticles (NPs) of metals supported on various substrates, for example, fuel-cell catalysts comprising Pt or Ag NPs supported on carbon [1,2], (b) the fundamental electrochemical behavior of NPs of noble metals, for example, quantized double-layer charging of thiol-capped Au NPs [3-5], (c) the electrochemical and photoelectrochemical behavior of semiconductor NPs [4, 6-8], and (d) biosensor applications of nanoparticles [9, 10]. These topics have received much attention, and relatively recent reviews of these areas are cited. Considerably less has been reported on the fundamental electrochemical behavior of electroactive NPs that do not fall within these categories. In particular, work is only beginning in the area of the electrochemistry of discrete, electroactive NPs. That is the topic of this review, which discusses the synthesis, interfacial immobilization and electrochemical behavior of electroactive NPs. The review is not intended to be an exhaustive treatment of the area, but rather to give a flavor of the types of systems that have been examined and the types of phenomena that can influence the electrochemical behavior of electroactive NPs. 

The work described above constitutes the beginning of a new area in which the faradaic electrochemistry of discrete, electroactive nanoparticles is explored, both from a... 

Nurmi JT, Tratnyek PG, Sarathy V, Baer DR, Amonette JE, Pecher K, Wang CM, Linehan JC, Matson DW, Penn RL, Driessen MD (2005) Characterization and properties of metaUic iron nanoparticles Spectroscopy, electrochemistry, and kinetics. Environ Sci Technol 39 1221-1230... 

---