A confocal laser scanning microscopic study on thermoresponsive binary microgel dispersions incorporated with CdTe quantum dots |
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| Authors: | J Brijitta B V R Tata K Saravanan B K Panigrahi and T Kaliyappan |
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| Institution: | (1) Department of Chemical Engineering, South China University of Technology, 510640 Guangzhou, China;(2) Department of Bioengineering, University of Washington Seattle, 98195 Seattle, WA, USA; |
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| Abstract: | Monodisperse poly(N-isopropylacrylamide) (PNIPAM) particles loaded with cadmium telluride (CdTe) quantum dots (QDs) of two different sizes (4.7
nm and 5.6 nm) were synthesized in aqueous medium by bonding the capping agent on the quantum dots to the amide groups of
PNIPAM and incubating the samples at 45°C. A huge increase in the photoluminescence (PL) intensity (green and red regions)
is observed for the PNIPAM-CdTe QDs composites compared to the parent CdTe QDs. We report here for the first time the imaging
of binary dispersion of green and red luminescent PNIPAM-CdTe QDs composites using a fluorescence confocal laser scanning
microscope. These composites have potential applications both in material science and biology. |
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