Influence of channel height on mixing efficiency and synthesis of iron oxide nanoparticles using droplet-based microfluidics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F20%3A43920681" target="_blank" >RIV/60461373:22340/20:43920681 - isvavai.cz</a>

Result on the web

<a href="https://pubs.rsc.org/en/content/articlepdf/2020/ra/d0ra02470h" target="_blank" >https://pubs.rsc.org/en/content/articlepdf/2020/ra/d0ra02470h</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d0ra02470h" target="_blank" >10.1039/d0ra02470h</a>

Result language

angličtina

Original language name

Influence of channel height on mixing efficiency and synthesis of iron oxide nanoparticles using droplet-based microfluidics

Original language description

Microfluidic devices, allowing superior control over the spatial and temporal distribution of chemical substances and high process reproducibility, are nowadays essential in various research areas and industrial fields where the traditional &quot;macroscopic&quot; approach was no longer able to keep up with the increasing demands of high-end applications. In the present work, internal mixing of droplets formed by a flow-focusing X-junction at constant flow rates of both phases for three different channel heights (i.e. 20, 40 and 60 μm) was investigated and characterised. Both experimental methods and 3D CFD simulations were employed in order to resolve governing factors having an impact on internal mixing and homogenization time of model tracers inside of droplet reactors. Additionally, the influence of channel height on internal mixing was experimentally studied for continuous preparation of iron oxide nanoparticles by co-precipitation reaction. Since the initial nucleation phase is strongly affected by mixing and spatial distribution of all reactants, the final particle size and particle size distribution (PSD) can be used as direct indicators of mixing performance. It has been demonstrated that the smallest 20 μm channels provided narrower PSD and smaller particle mean size compared to higher channels. This journal is © 2020 The Royal Society of Chemistry.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

20402 - Chemical process engineering

Project

<a href="/en/project/GJ17-11851Y" target="_blank" >GJ17-11851Y: Synthesis of biomimetic nanoparticulate materials using a microfluidic platform and investigation of their interaction with cells</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

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

Name of the periodical

RSC Advances

ISSN

2046-2069

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

26

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

15179-15189

UT code for WoS article

000530037900020

EID of the result in the Scopus database

2-s2.0-85084112664