Colloidal lattices of environmentally responsive microgel particles at ionic liquid–water interfaces

Haobo Chen, Elizabeth M. Nofen, Konrad Rykaczewski, Lenore Dai

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This work reports new evidence of the versatility of soft and environmentally responsive micron-sized colloidal gel particles as stabilizers at ionic liquid-water droplet interfaces. These particles display a duality with properties ascribed typically to both polymeric and colloidal systems. The utilization of fluorescently labeled composite microgel particles allows in-situ and facile visualization without the necessity of invasive sample preparation. When the prepared particles form monolayers equilibrated at the ionic liquid-water interface on fully covered droplets, the colloidal lattice re-orders itself depending on the surface charge of these particles. Finally, we demonstrate that the spontaneously formed and densely packed layer of microgel particles can be employed for extraction applications, as the interface remains permeable to small active species.

Original languageEnglish (US)
Pages (from-to)440-447
Number of pages8
JournalJournal of Colloid and Interface Science
Volume504
DOIs
StatePublished - Oct 15 2017

Fingerprint

Ionic Liquids
Ionic liquids
Water
Surface charge
Particles (particulate matter)
Monolayers
Gels
Visualization
Composite materials

Keywords

  • Colloidal lattice
  • Environmentally responsive
  • Ionic liquid
  • Microgel

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

Cite this

Colloidal lattices of environmentally responsive microgel particles at ionic liquid–water interfaces. / Chen, Haobo; Nofen, Elizabeth M.; Rykaczewski, Konrad; Dai, Lenore.

In: Journal of Colloid and Interface Science, Vol. 504, 15.10.2017, p. 440-447.

Research output: Contribution to journalArticle

@article{0deef24326ae43ef83758389bd97e623,
title = "Colloidal lattices of environmentally responsive microgel particles at ionic liquid–water interfaces",
abstract = "This work reports new evidence of the versatility of soft and environmentally responsive micron-sized colloidal gel particles as stabilizers at ionic liquid-water droplet interfaces. These particles display a duality with properties ascribed typically to both polymeric and colloidal systems. The utilization of fluorescently labeled composite microgel particles allows in-situ and facile visualization without the necessity of invasive sample preparation. When the prepared particles form monolayers equilibrated at the ionic liquid-water interface on fully covered droplets, the colloidal lattice re-orders itself depending on the surface charge of these particles. Finally, we demonstrate that the spontaneously formed and densely packed layer of microgel particles can be employed for extraction applications, as the interface remains permeable to small active species.",
keywords = "Colloidal lattice, Environmentally responsive, Ionic liquid, Microgel",
author = "Haobo Chen and Nofen, {Elizabeth M.} and Konrad Rykaczewski and Lenore Dai",
year = "2017",
month = "10",
day = "15",
doi = "10.1016/j.jcis.2017.04.083",
language = "English (US)",
volume = "504",
pages = "440--447",
journal = "Journal of Colloid and Interface Science",
issn = "0021-9797",
publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - Colloidal lattices of environmentally responsive microgel particles at ionic liquid–water interfaces

AU - Chen, Haobo

AU - Nofen, Elizabeth M.

AU - Rykaczewski, Konrad

AU - Dai, Lenore

PY - 2017/10/15

Y1 - 2017/10/15

N2 - This work reports new evidence of the versatility of soft and environmentally responsive micron-sized colloidal gel particles as stabilizers at ionic liquid-water droplet interfaces. These particles display a duality with properties ascribed typically to both polymeric and colloidal systems. The utilization of fluorescently labeled composite microgel particles allows in-situ and facile visualization without the necessity of invasive sample preparation. When the prepared particles form monolayers equilibrated at the ionic liquid-water interface on fully covered droplets, the colloidal lattice re-orders itself depending on the surface charge of these particles. Finally, we demonstrate that the spontaneously formed and densely packed layer of microgel particles can be employed for extraction applications, as the interface remains permeable to small active species.

AB - This work reports new evidence of the versatility of soft and environmentally responsive micron-sized colloidal gel particles as stabilizers at ionic liquid-water droplet interfaces. These particles display a duality with properties ascribed typically to both polymeric and colloidal systems. The utilization of fluorescently labeled composite microgel particles allows in-situ and facile visualization without the necessity of invasive sample preparation. When the prepared particles form monolayers equilibrated at the ionic liquid-water interface on fully covered droplets, the colloidal lattice re-orders itself depending on the surface charge of these particles. Finally, we demonstrate that the spontaneously formed and densely packed layer of microgel particles can be employed for extraction applications, as the interface remains permeable to small active species.

KW - Colloidal lattice

KW - Environmentally responsive

KW - Ionic liquid

KW - Microgel

UR - http://www.scopus.com/inward/record.url?scp=85020278832&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85020278832&partnerID=8YFLogxK

U2 - 10.1016/j.jcis.2017.04.083

DO - 10.1016/j.jcis.2017.04.083

M3 - Article

VL - 504

SP - 440

EP - 447

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

SN - 0021-9797

ER -