One-step production of highly anisotropic particles via a microfluidic method

Ming Xia, Eun Min Go, Kyu Hwan Choi, Jin Hyun Lim, Bumkyo Park, Taekyung Yu, Sang Hyuk Im, Sang Kyu Kwak, Bum Jun Park

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We introduce a promising protocol that can be used to fabricate polymer particles with a high degree of shape anisotropy; this method can be utilized with a variety of microfluidic generation methods. Low-density microparticles and high-density nanoparticles vertically migrated in a polymer solution confined in emulsion droplets that were produced via a microfluidic method. As the solvent evaporated in individual droplets at ambient conditions, the low-density microparticles migrated upward because their density was lower than that of the polymer solution. The high-density nanoparticles that were initially well-dispersed in the droplet phase became destabilized upon solvent removal, leading to the formation of aggregates and sedimentation in a downward direction. The migration of the particle components during solvent evaporation induced shape deformation/modification of the emulsion droplets; consequently, polymer particles with highly anisotropic shapes were created after drying.

Original languageEnglish
Pages (from-to)328-336
Number of pages9
JournalJournal of Industrial and Engineering Chemistry
Volume64
DOIs
Publication statusPublished - 2018 Aug 25

Fingerprint

Microfluidics
Polymer solutions
Emulsions
Polymers
Nanoparticles
Sedimentation
Drying
Evaporation
Anisotropy

Keywords

  • Anisotropy
  • Interface
  • Microfluidics
  • Nanoparticles
  • Phase separation

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

One-step production of highly anisotropic particles via a microfluidic method. / Xia, Ming; Go, Eun Min; Choi, Kyu Hwan; Lim, Jin Hyun; Park, Bumkyo; Yu, Taekyung; Im, Sang Hyuk; Kwak, Sang Kyu; Park, Bum Jun.

In: Journal of Industrial and Engineering Chemistry, Vol. 64, 25.08.2018, p. 328-336.

Research output: Contribution to journalArticle

Xia, Ming ; Go, Eun Min ; Choi, Kyu Hwan ; Lim, Jin Hyun ; Park, Bumkyo ; Yu, Taekyung ; Im, Sang Hyuk ; Kwak, Sang Kyu ; Park, Bum Jun. / One-step production of highly anisotropic particles via a microfluidic method. In: Journal of Industrial and Engineering Chemistry. 2018 ; Vol. 64. pp. 328-336.
@article{3c8b614a1c09403ebc80db0f84d79b37,
title = "One-step production of highly anisotropic particles via a microfluidic method",
abstract = "We introduce a promising protocol that can be used to fabricate polymer particles with a high degree of shape anisotropy; this method can be utilized with a variety of microfluidic generation methods. Low-density microparticles and high-density nanoparticles vertically migrated in a polymer solution confined in emulsion droplets that were produced via a microfluidic method. As the solvent evaporated in individual droplets at ambient conditions, the low-density microparticles migrated upward because their density was lower than that of the polymer solution. The high-density nanoparticles that were initially well-dispersed in the droplet phase became destabilized upon solvent removal, leading to the formation of aggregates and sedimentation in a downward direction. The migration of the particle components during solvent evaporation induced shape deformation/modification of the emulsion droplets; consequently, polymer particles with highly anisotropic shapes were created after drying.",
keywords = "Anisotropy, Interface, Microfluidics, Nanoparticles, Phase separation",
author = "Ming Xia and Go, {Eun Min} and Choi, {Kyu Hwan} and Lim, {Jin Hyun} and Bumkyo Park and Taekyung Yu and Im, {Sang Hyuk} and Kwak, {Sang Kyu} and Park, {Bum Jun}",
year = "2018",
month = "8",
day = "25",
doi = "10.1016/j.jiec.2018.03.033",
language = "English",
volume = "64",
pages = "328--336",
journal = "Journal of Industrial and Engineering Chemistry",
issn = "1226-086X",
publisher = "Korean Society of Industrial Engineering Chemistry",

}

TY - JOUR

T1 - One-step production of highly anisotropic particles via a microfluidic method

AU - Xia, Ming

AU - Go, Eun Min

AU - Choi, Kyu Hwan

AU - Lim, Jin Hyun

AU - Park, Bumkyo

AU - Yu, Taekyung

AU - Im, Sang Hyuk

AU - Kwak, Sang Kyu

AU - Park, Bum Jun

PY - 2018/8/25

Y1 - 2018/8/25

N2 - We introduce a promising protocol that can be used to fabricate polymer particles with a high degree of shape anisotropy; this method can be utilized with a variety of microfluidic generation methods. Low-density microparticles and high-density nanoparticles vertically migrated in a polymer solution confined in emulsion droplets that were produced via a microfluidic method. As the solvent evaporated in individual droplets at ambient conditions, the low-density microparticles migrated upward because their density was lower than that of the polymer solution. The high-density nanoparticles that were initially well-dispersed in the droplet phase became destabilized upon solvent removal, leading to the formation of aggregates and sedimentation in a downward direction. The migration of the particle components during solvent evaporation induced shape deformation/modification of the emulsion droplets; consequently, polymer particles with highly anisotropic shapes were created after drying.

AB - We introduce a promising protocol that can be used to fabricate polymer particles with a high degree of shape anisotropy; this method can be utilized with a variety of microfluidic generation methods. Low-density microparticles and high-density nanoparticles vertically migrated in a polymer solution confined in emulsion droplets that were produced via a microfluidic method. As the solvent evaporated in individual droplets at ambient conditions, the low-density microparticles migrated upward because their density was lower than that of the polymer solution. The high-density nanoparticles that were initially well-dispersed in the droplet phase became destabilized upon solvent removal, leading to the formation of aggregates and sedimentation in a downward direction. The migration of the particle components during solvent evaporation induced shape deformation/modification of the emulsion droplets; consequently, polymer particles with highly anisotropic shapes were created after drying.

KW - Anisotropy

KW - Interface

KW - Microfluidics

KW - Nanoparticles

KW - Phase separation

UR - http://www.scopus.com/inward/record.url?scp=85044736302&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85044736302&partnerID=8YFLogxK

U2 - 10.1016/j.jiec.2018.03.033

DO - 10.1016/j.jiec.2018.03.033

M3 - Article

AN - SCOPUS:85044736302

VL - 64

SP - 328

EP - 336

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

SN - 1226-086X

ER -