Thermoresponsive CdS@PNIPAM core–shell nanocomposite
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Design and synthesis of core–shell nanocomposites, with a shell of an organic material coating an inorganic nanocrystal core, have been thoroughly investigated due to their prospective applications in many fields, such as catalysis, photonics, electronics, optics, and biomedicine [1, 2, 3, 4, 5, 6]. In the past decade, tremendous research efforts have been devoted to design nanoparticles with the surface coating layer sensitive to external stimuli, such as ionic strength, light, temperature, and pH value [7, 8, 9, 10]. Poly(N-isopropylacrylamide) (PNIPAM) is a well-known thermo-sensitive polymer, exhibiting a lower critical solution temperature (LCST) at about 32 °C in water, and it is one of the most studied smart polymers to modify nanoparticles [11, 12, 13].
Generally, there are two approaches to covalently attach polymer chains to a solid surface. One is a “grafting to” method in which end-functionalized polymers are adsorbed onto the nanoparticles surface after polymerization. The...
KeywordsLower Critical Solution Temperature Microemulsion System Transmission Electron Microscope Grid Shell Nanostructures Trithiocarbonate
C. Li thanks the Zhengzhou University for start-up funds. This research was supported by the NSFC (20901069) and Henan Province Scientific and Technological Research Program (092102210054).
- 1.Chen W, Yu R, Li LL, Wang AN, Peng Q, Li YD (2010) Angew Chem Int Ed 49:2917Google Scholar