Polyvinylpyrrolidone (PVP) in nanoparticle synthesis

Colloidal synthesis offers a route to nanoparticles (NPs) with controlled composition and structural features. This Perspective describes the use of polyvinylpyrrolidone (PVP) to obtain such nanostructures. PVP can serve as a surface stabilizer, growth modifier, nanoparticle dispersant, and reducing...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2015-01, Vol.44 (41), p.17883-1795
Main Authors: Koczkur, Kallum M, Mourdikoudis, Stefanos, Polavarapu, Lakshminarayana, Skrabalak, Sara E
Format: Article
Language:English
Subjects:
Chemical Sciences
Colloids
Guidelines
Nanostructure
Organic chemistry
Polyvinylpyrrolidone
Raman spectroscopy
Solvents
Stabilization
Synthesis
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Summary:Colloidal synthesis offers a route to nanoparticles (NPs) with controlled composition and structural features. This Perspective describes the use of polyvinylpyrrolidone (PVP) to obtain such nanostructures. PVP can serve as a surface stabilizer, growth modifier, nanoparticle dispersant, and reducing agent. As shown with examples, its role depends on the synthetic conditions. This dependence arises from the amphiphilic nature of PVP along with the molecular weight of the selected PVP. These characteristics can affect nanoparticle growth and morphology by providing solubility in diverse solvents, selective surface stabilization, and even access to kinetically controlled growth conditions. This Perspective includes discussions of the properties of PVP-capped NPs for surface enhanced Raman spectroscopy (SERS), assembly, catalysis, and more. The contribution of PVP to these properties as well as its removal is considered. Ultimately, the NPs accessed through the use of PVP in colloidal syntheses are opening new applications, and the concluding guidelines provided herein should enable new nanostructures to be accessed facilely. The versatile role of PVP in nanoparticle synthesis is discussed in this Perspective article.
ISSN:1477-9226
1477-9234
DOI:10.1039/c5dt02964c