Transport of Magnetic Polyelectrolyte Capsules in Various Environments

Carmen Stavarache; Mircea Vinatoru; Timothy Mason

doi:10.3390/coatings12020259

Transport of Magnetic Polyelectrolyte Capsules in Various Environments

Carmen Stavarache, Mircea Vinatoru, Timothy Mason

Faculty of Health & Life Sciences

Research output: Contribution to journal › Article › peer-review

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Abstract

Microcapsules consisting of eleven layers of polyelectrolyte and one layer of iron oxide nanoparticles were fabricated. Two types of nanoparticles were inserted as one of the layers within the microcapsule’s walls: Fe2O3, ferric oxide, having a mean diameter (Ø ) of 50 nm and superpara-magnetic Fe3O4 having Ø 15 nm. The microcapsules were suspended in liquid environments at a concentration of 10⁸ caps/mL. The suspensions were pumped through a tube over a permanent mag-net, and the accumulation within a minute was more than 90% of the initial concentration. The design of the capsules, the amount of iron embedded in the microcapsule, and the viscosity of the transportation fluid had a rather small influence on the accumulation capacity. Magnetic microcapsules have broad applications from cancer treatment to molecular communication.

Original language	English
Article number	259
Journal	Coatings
Volume	12
Issue number	2
DOIs	https://doi.org/10.3390/coatings12020259
Publication status	Published - 15 Feb 2022

Bibliographical note

Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).

Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

Drug delivery
Molecular communication
Polyelectrolyte magnetic capsules
Transport

ASJC Scopus subject areas

Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/coatings12020259Licence: CC BY

PublishedFinal published version, 6.88 MBLicence: CC BY

Cite this

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title = "Transport of Magnetic Polyelectrolyte Capsules in Various Environments",

abstract = "Microcapsules consisting of eleven layers of polyelectrolyte and one layer of iron oxide nanoparticles were fabricated. Two types of nanoparticles were inserted as one of the layers within the microcapsule{\textquoteright}s walls: Fe2O3, ferric oxide, having a mean diameter ({\O} ) of 50 nm and superpara-magnetic Fe3O4 having {\O} 15 nm. The microcapsules were suspended in liquid environments at a concentration of 108 caps/mL. The suspensions were pumped through a tube over a permanent mag-net, and the accumulation within a minute was more than 90% of the initial concentration. The design of the capsules, the amount of iron embedded in the microcapsule, and the viscosity of the transportation fluid had a rather small influence on the accumulation capacity. Magnetic microcapsules have broad applications from cancer treatment to molecular communication.",

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AU - Mason, Timothy

N1 - Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

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AB - Microcapsules consisting of eleven layers of polyelectrolyte and one layer of iron oxide nanoparticles were fabricated. Two types of nanoparticles were inserted as one of the layers within the microcapsule’s walls: Fe2O3, ferric oxide, having a mean diameter (Ø ) of 50 nm and superpara-magnetic Fe3O4 having Ø 15 nm. The microcapsules were suspended in liquid environments at a concentration of 108 caps/mL. The suspensions were pumped through a tube over a permanent mag-net, and the accumulation within a minute was more than 90% of the initial concentration. The design of the capsules, the amount of iron embedded in the microcapsule, and the viscosity of the transportation fluid had a rather small influence on the accumulation capacity. Magnetic microcapsules have broad applications from cancer treatment to molecular communication.

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Transport of Magnetic Polyelectrolyte Capsules in Various Environments

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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