Linear Assemblies of Monodisperse Silver Nanoparticles on Micro/Nanofibrillar Cellulose

Autor:	Yu. A. Shchipunov, Sergei Sarin, A. V. Skatova
Rok vydání:	2020
Předmět:	Materials science 010304 chemical physics Dispersity Substrate (chemistry) Nanoparticle 02 engineering and technology Surfaces and Interfaces 021001 nanoscience & nanotechnology 01 natural sciences Silver nanoparticle Rhodamine 6G chemistry.chemical_compound Silver chloride Colloid and Surface Chemistry chemistry Chemical engineering 0103 physical sciences Physical and Theoretical Chemistry Cellulose 0210 nano-technology Ethylene glycol
Zdroj:	Colloid Journal. 82:324-332
ISSN:	1608-3067 1061-933X
DOI:	10.1134/s1061933x20030126
Popis:	Uniform silver nanoparticles with diameters smaller than 10 nm have been synthesized by the hydrothermal method on micro/nanofibrils of cellulose, which is used as a substrate, in a solution consisting of a water/ethylene glycol (reductant) mixture, a silver salt, poly(vinylpyrrolidone), and silver chloride used as a seed. Cellulose plays the role of an additional mild reductant, which prevents the formed nanoparticles from coalescence and provides the formation of their linear assemblies, in which the density of the nanoparticles and the gaps between them are regulated by varying silver salt concentration in the reaction mixture. Experiments performed with rhodamine 6G dye have shown that the synthesized assemblies of silver nanoparticles exhibit surface-enhanced Raman scattering. The proposed synthesis method may be used for the production of inexpensive sensor elements for surface-enhanced Raman scattering spectroscopy analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::85b453bb1ac4bbd57459ec0630e740cd https://doi.org/10.1134/s1061933x20030126 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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