One-Step Synthesis of Ultrasmall Nanoparticles in Glycerol as a Promising Green Solvent at Room Temperature Using Omega-Shaped Microfluidic Micromixers

Despite innovations in the synthesis protocol of nanoparticles (NPs), the size distribution and uniformity of particles still remain as crucial attributes. Homogeneous and rapid nucleation is a critical phenomenon to obtain monodisperse nanoparticles. Herein, we have carried out the synthesis of met...

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Bibliographic Details
Published in:Analytical chemistry (Washington) 2023-11, Vol.95 (47), p.17177-17186
Main Authors: Jahangir, Robab, Munir, Iqra, Yesiloz, Gurkan
Format: Article
Language:English
Subjects:
Fluorescent dyes
Fluorescent indicators
Glycerol
Light scattering
Metal concentrations
Microfluidics
Nanoparticles
Nucleation
Particle size
Photon correlation spectroscopy
Polyvinylpyrrolidone
Reducing agents
Room temperature
Size distribution
Solvents
Spectroscopy
Synthesis
Transmission electron microscopy
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Summary:Despite innovations in the synthesis protocol of nanoparticles (NPs), the size distribution and uniformity of particles still remain as crucial attributes. Homogeneous and rapid nucleation is a critical phenomenon to obtain monodisperse nanoparticles. Herein, we have carried out the synthesis of metal nanoparticles in a customized microfluidic (MF) chip, with 18 omega-shaped micromixers, by using glycerol as a promising green solvent and reducing agent at various concentrations (10–80%), and simultaneous comparison of the results from batch synthesis. Initially, mixing characterization for 10–80% glycerol was obtained by adjusting the Peclet (Pe) number. Further, the effect of the Pe number, time, and concentrations of polyvinylpyrrolidone, metal source, and glycerol on the NP size was investigated. Interestingly, the experimental findings depicted that by varying different parameters, the spherical nanoparticles with an average ultrasmall particle diameter of
ISSN:0003-2700
1520-6882
DOI:10.1021/acs.analchem.3c01697