Two-stage kinetics of field-induced aggregation of medium-sized magnetic nanoparticles / Ezzaier H.,Marins J. Alves,Razvin I.,Abbas M.,Amara A. Ben Haj,Zubarev A.,Kuzhir P. // JOURNAL OF CHEMICAL PHYSICS. - 2017. - V. 146, l. 11.

ISSN/EISSN:

0021-9606 / 1089-7690

Type:

Article

Abstract:

The present paper is focused on the theoretical and experimental study of the kinetics of field-induced aggregation of magnetic nanoparticles of a size range of 20-100 nm. Our results demonstrate that (a) in polydisperse suspensions, the largest particles could play a role of the centers of nucleation for smaller particles during the earliest heterogeneous nucleation stage; (b) an intermediate stage of the aggregate growth (due to diffusion and migration of individual nanoparticles towards the aggregates) is weakly influenced by the magnetic field strength, at least at high supersaturation; (c) the stage of direct coalescence of drop-like aggregates (occurring under magnetic attraction between them) plays a dominant role at the intermediate and late stages of the phase separation, with the time scale decreasing as a square of the aggregate magnetization. Published by AIP Publishing.

Author keywords:

IRON-OXIDE NANOPARTICLES; PHASE-SEPARATION; MAGNETORHEOLOGICAL FLUID; DRUG-DELIVERY; PARTICLES; SUSPENSION; MAGNETOPHORESIS; FERROCOLLOIDS; NANOCLUSTERS; PURIFICATION

DOI:

10.1063/1.4977993

Web of Science ID:

ISI:000397313600031

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAR 21
Publisher	AMER INST PHYSICS
Address	1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
Language	English
Article-Number	114902
EISSN	1089-7690
Keywords-Plus	IRON-OXIDE NANOPARTICLES; PHASE-SEPARATION; MAGNETORHEOLOGICAL FLUID; DRUG-DELIVERY; PARTICLES; SUSPENSION; MAGNETOPHORESIS; FERROCOLLOIDS; NANOCLUSTERS; PURIFICATION
Research-Areas	Chemistry; Physics
Web-of-Science-Categories	Chemistry, Physical; Physics, Atomic, Molecular \& Chemical
Author-Email	kuzhir@unice.fr
ORCID-Numbers	Kuzhir, Pavel/0000-0001-7089-6197
Funding-Acknowledgement	French CNRS-INSIS (PEPS program); UCA Jeudi Idex (Academy 2 ``MagFilter{''} project); FSB; CNPq {[}203100/2014-0]; Program of Ministry of Science and Education of Russian Federation {[}3.1438.2017/PCh]; Russian Foundation for Fundamental Investigations {[}16-58-12003]
Funding-Text	The authors acknowledge the financial support of the French CNRS-INSIS (PEPS program) and of UCA Jeudi Idex (Academy 2 ``MagFilter{''} project). One of the authors (H.E.) acknowledges FSB through its Ph.D. collaboration fellowship. J.A.M. acknowledges CNPq through its postdoctoral fellowship (Ref. No. 203100/2014-0). A.Z. is grateful to the Program of Ministry of Science and Education of Russian Federation, Project No. 3.1438.2017/PCh and to the Russian Foundation for Fundamental Investigations (grant No. 16-58-12003).
Number-of-Cited-References	77
Usage-Count-Last-180-days	7
Usage-Count-Since-2013	12
Journal-ISO	J. Chem. Phys.
Doc-Delivery-Number	EP3WY