Nanostructured thermoresponsive quantum dot/PNIPAM assemblies

O. Tagit, D.J. Janczewski, N. Tomczak, Mingyong Han, Jennifer Lynn Herek, Gyula J. Vancso

Research output: Contribution to journalArticleAcademicpeer-review

23 Citations (Scopus)

Abstract

Synthesis, characterization, and applications of novel thermoresponsive polymeric coatings for quantum dots (QDs) are presented. Comb-copolymers featuring hydrophobic alkyl groups, carboxylic groups and poly(N-isopropylacrylamide) (PNIPAM) side chains with molar masses ranging from 1000 g/mol to 25,400 g/mol were obtained. The amphiphilic comb-copolymers were shown to efficiently transfer the QDs to aqueous media. The PNIPAM-coated QD materials display a lower critical solution temperature (LCST). The absorbance, luminescence emission, size of the assemblies, and electrophoretic mobility were followed as a function of temperature and the reversibility of the temperature induced changes is demonstrated by cyclic heating and cooling.
Original languageEnglish
Pages (from-to)1397-1403
Number of pages7
JournalEuropean polymer journal
Volume46
Issue number7
DOIs
Publication statusPublished - 2010

Fingerprint

assemblies
Semiconductor quantum dots
quantum dots
copolymers
Copolymers
Electrophoretic mobility
Molar mass
Temperature
temperature
Luminescence
luminescence
Cooling
cooling
coatings
Heating
Coatings
heating
synthesis
poly-N-isopropylacrylamide

Keywords

  • METIS-269886
  • PNIPAM
  • Stimuli responsive polymer
  • Quantum dots
  • Reversible switching of luminescence
  • IR-80282

Cite this

Tagit, O. ; Janczewski, D.J. ; Tomczak, N. ; Han, Mingyong ; Herek, Jennifer Lynn ; Vancso, Gyula J. / Nanostructured thermoresponsive quantum dot/PNIPAM assemblies. In: European polymer journal. 2010 ; Vol. 46, No. 7. pp. 1397-1403.
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abstract = "Synthesis, characterization, and applications of novel thermoresponsive polymeric coatings for quantum dots (QDs) are presented. Comb-copolymers featuring hydrophobic alkyl groups, carboxylic groups and poly(N-isopropylacrylamide) (PNIPAM) side chains with molar masses ranging from 1000 g/mol to 25,400 g/mol were obtained. The amphiphilic comb-copolymers were shown to efficiently transfer the QDs to aqueous media. The PNIPAM-coated QD materials display a lower critical solution temperature (LCST). The absorbance, luminescence emission, size of the assemblies, and electrophoretic mobility were followed as a function of temperature and the reversibility of the temperature induced changes is demonstrated by cyclic heating and cooling.",
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Nanostructured thermoresponsive quantum dot/PNIPAM assemblies. / Tagit, O.; Janczewski, D.J.; Tomczak, N.; Han, Mingyong; Herek, Jennifer Lynn; Vancso, Gyula J.

In: European polymer journal, Vol. 46, No. 7, 2010, p. 1397-1403.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Nanostructured thermoresponsive quantum dot/PNIPAM assemblies

AU - Tagit, O.

AU - Janczewski, D.J.

AU - Tomczak, N.

AU - Han, Mingyong

AU - Herek, Jennifer Lynn

AU - Vancso, Gyula J.

PY - 2010

Y1 - 2010

N2 - Synthesis, characterization, and applications of novel thermoresponsive polymeric coatings for quantum dots (QDs) are presented. Comb-copolymers featuring hydrophobic alkyl groups, carboxylic groups and poly(N-isopropylacrylamide) (PNIPAM) side chains with molar masses ranging from 1000 g/mol to 25,400 g/mol were obtained. The amphiphilic comb-copolymers were shown to efficiently transfer the QDs to aqueous media. The PNIPAM-coated QD materials display a lower critical solution temperature (LCST). The absorbance, luminescence emission, size of the assemblies, and electrophoretic mobility were followed as a function of temperature and the reversibility of the temperature induced changes is demonstrated by cyclic heating and cooling.

AB - Synthesis, characterization, and applications of novel thermoresponsive polymeric coatings for quantum dots (QDs) are presented. Comb-copolymers featuring hydrophobic alkyl groups, carboxylic groups and poly(N-isopropylacrylamide) (PNIPAM) side chains with molar masses ranging from 1000 g/mol to 25,400 g/mol were obtained. The amphiphilic comb-copolymers were shown to efficiently transfer the QDs to aqueous media. The PNIPAM-coated QD materials display a lower critical solution temperature (LCST). The absorbance, luminescence emission, size of the assemblies, and electrophoretic mobility were followed as a function of temperature and the reversibility of the temperature induced changes is demonstrated by cyclic heating and cooling.

KW - METIS-269886

KW - PNIPAM

KW - Stimuli responsive polymer

KW - Quantum dots

KW - Reversible switching of luminescence

KW - IR-80282

U2 - 10.1016/j.eurpolymj.2010.04.026

DO - 10.1016/j.eurpolymj.2010.04.026

M3 - Article

VL - 46

SP - 1397

EP - 1403

JO - European polymer journal

JF - European polymer journal

SN - 0014-3057

IS - 7

ER -