Please use this identifier to cite or link to this item: https://doi.org/26/265701
Title: Influence of the length and grafting density of PNIPAM chains on the colloidal and optical properties of quantum dot/PNIPAM assemblies
Authors: Tagit, O.
Tomczak, N.
Jafarpour, A.
Jańczewski, D.
Han, M.Y. 
Vancso, G.J.
Herek, J.L.
Issue Date: 1-Jul-2011
Source: Tagit, O.,Tomczak, N.,Jafarpour, A.,Jańczewski, D.,Han, M.Y.,Vancso, G.J.,Herek, J.L. (2011-07-01). Influence of the length and grafting density of PNIPAM chains on the colloidal and optical properties of quantum dot/PNIPAM assemblies. Nanotechnology 22 (26) : -. ScholarBank@NUS Repository. https://doi.org/26/265701
Abstract: Structural and optical characterization of water soluble, thermo-responsive quantum dot/poly(N-isopropyl acrylamide) (QD/PNIPAM) hybrid particles using fluorescence correlation spectroscopy (FCS) and time-correlated single photon counting (TCSPC) measurements performed at temperatures below and above the lower critical solution temperature (LCST) of PNIPAM is reported. By increasing the temperature above the LCST, the signature of the PNIPAM chain collapse covering the QDs is revealed by FCS measurements. Despite the significant structural change, the TCSPC measurements show that the fluorescence lifetimes remain of the same order of magnitude at T > LCST. Such QD/PNIPAM hybrid particles with water solubility and robust thermo-responsive behavior at physiologically relevant temperatures are potentially useful for (bio)molecular sensing and separation applications. © 2011 IOP Publishing Ltd.
Source Title: Nanotechnology
URI: http://scholarbank.nus.edu.sg/handle/10635/67116
ISSN: 09574484
DOI: 26/265701
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

37
checked on Dec 14, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.