Dynamically self-assembling carriers enable guiding of diamagnetic particles by weak magnets

Olga Chovnik, Renata Balgley, Joel R. Goldman, Rafal Klajn

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

We show that diamagnetic particles can be remotely manipulated by a magnet by the reversible adsorption of dual-responsive, light-switchable/ superparamagnetic nanoparticles down to their surface. Adsorption occurs upon exposure to UV light, and can be reversed thermally or by ambient light. The dynamic self-assembly of thin films of the dual-responsive nanoparticles induces attractive interactions between diamagnetic particles. We demonstrate that catalytic amounts of the dual-responsive nanoparticles are sufficient to magnetically guide and deliver the diamagnetic particles to desired locations, where they can then be released by disassembling the dynamic layers of superparamagnetic nanoparticles with visible light.

Original languageEnglish
Pages (from-to)19564-19567
Number of pages4
JournalJournal of the American Chemical Society
Volume134
Issue number48
DOIs
Publication statusPublished - Dec 5 2012

Fingerprint

Magnets
Nanoparticles
Light
Adsorption
Ultraviolet Rays
Ultraviolet radiation
Self assembly
Thin films

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Dynamically self-assembling carriers enable guiding of diamagnetic particles by weak magnets. / Chovnik, Olga; Balgley, Renata; Goldman, Joel R.; Klajn, Rafal.

In: Journal of the American Chemical Society, Vol. 134, No. 48, 05.12.2012, p. 19564-19567.

Research output: Contribution to journalArticle

Chovnik, Olga ; Balgley, Renata ; Goldman, Joel R. ; Klajn, Rafal. / Dynamically self-assembling carriers enable guiding of diamagnetic particles by weak magnets. In: Journal of the American Chemical Society. 2012 ; Vol. 134, No. 48. pp. 19564-19567.
@article{9c25748f572241bcb85490701e4308bc,
title = "Dynamically self-assembling carriers enable guiding of diamagnetic particles by weak magnets",
abstract = "We show that diamagnetic particles can be remotely manipulated by a magnet by the reversible adsorption of dual-responsive, light-switchable/ superparamagnetic nanoparticles down to their surface. Adsorption occurs upon exposure to UV light, and can be reversed thermally or by ambient light. The dynamic self-assembly of thin films of the dual-responsive nanoparticles induces attractive interactions between diamagnetic particles. We demonstrate that catalytic amounts of the dual-responsive nanoparticles are sufficient to magnetically guide and deliver the diamagnetic particles to desired locations, where they can then be released by disassembling the dynamic layers of superparamagnetic nanoparticles with visible light.",
author = "Olga Chovnik and Renata Balgley and Goldman, {Joel R.} and Rafal Klajn",
year = "2012",
month = "12",
day = "5",
doi = "10.1021/ja309633v",
language = "English",
volume = "134",
pages = "19564--19567",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "48",

}

TY - JOUR

T1 - Dynamically self-assembling carriers enable guiding of diamagnetic particles by weak magnets

AU - Chovnik, Olga

AU - Balgley, Renata

AU - Goldman, Joel R.

AU - Klajn, Rafal

PY - 2012/12/5

Y1 - 2012/12/5

N2 - We show that diamagnetic particles can be remotely manipulated by a magnet by the reversible adsorption of dual-responsive, light-switchable/ superparamagnetic nanoparticles down to their surface. Adsorption occurs upon exposure to UV light, and can be reversed thermally or by ambient light. The dynamic self-assembly of thin films of the dual-responsive nanoparticles induces attractive interactions between diamagnetic particles. We demonstrate that catalytic amounts of the dual-responsive nanoparticles are sufficient to magnetically guide and deliver the diamagnetic particles to desired locations, where they can then be released by disassembling the dynamic layers of superparamagnetic nanoparticles with visible light.

AB - We show that diamagnetic particles can be remotely manipulated by a magnet by the reversible adsorption of dual-responsive, light-switchable/ superparamagnetic nanoparticles down to their surface. Adsorption occurs upon exposure to UV light, and can be reversed thermally or by ambient light. The dynamic self-assembly of thin films of the dual-responsive nanoparticles induces attractive interactions between diamagnetic particles. We demonstrate that catalytic amounts of the dual-responsive nanoparticles are sufficient to magnetically guide and deliver the diamagnetic particles to desired locations, where they can then be released by disassembling the dynamic layers of superparamagnetic nanoparticles with visible light.

UR - http://www.scopus.com/inward/record.url?scp=84870667093&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870667093&partnerID=8YFLogxK

U2 - 10.1021/ja309633v

DO - 10.1021/ja309633v

M3 - Article

VL - 134

SP - 19564

EP - 19567

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 48

ER -