Microfluidic-assisted synthesis of uniform polymer-stabilized silver colloids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F21%3A00541189" target="_blank" >RIV/61389013:_____/21:00541189 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0927775721003071?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0927775721003071?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.colsurfa.2021.126438" target="_blank" >10.1016/j.colsurfa.2021.126438</a>

Result language

angličtina

Original language name

Microfluidic-assisted synthesis of uniform polymer-stabilized silver colloids

Original language description

We report the controlled synthesis of polymer-stabilized silver nanoparticles (AgNPs) by using microfluidic devices. The microfluidic-based method enabled the preparation of sub-50 nm AgNPs which are much more homogenous compared to those produced in batch reactors where the control over flow and mixing conditions was not performed. The concentration of the silver precursor (silver nitrate - AgNO3) can be tuned to reach smaller or larger nanoparticles, although within a fairly narrow range. Regardless of the polymeric shell, the reducing agent concentration influences the size and polydispersity of the manufactured silver colloids, and relatively lower amounts allow for the manufacturing of more homogeneous nanoparticles. Notably, the use of the block copolymer PEO-b-P2VP as stabilizing agent leads to larger nanoparticles (23–51 nm) compared to those stabilized by PVP (7–14 nm) as possibly linked to different arrangements of the polymer chains at the interface between the precursor solutions. The produced AgNPs are highly uniform, with size distribution width influenced by the polymer concentration (FWHM < 100 nm were determined at higher concentrations), although this variable does not have a distinguished effect on the final size of the manufactured colloids. Overall, we provide relevant new knowledge within the framework of polymer-stabilized AgNPs since a variety of other polymer chains can be probed, possibly with different outcomes regarding the final particle size. The reported findings can thus guide to significant advances towards the manufacturing of highly homogeneous polymer-coated metallic colloids, particularly when a target size is required.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10404 - Polymer science

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Colloids and Surfaces A-Physicochemical and Engineering Aspects

ISSN

0927-7757

e-ISSN

1873-4359

Volume of the periodical

618

Issue of the periodical within the volume

5 June

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

126438

UT code for WoS article

000642459500005

EID of the result in the Scopus database

2-s2.0-85102436762