Thermosensitive Au-PNIPA yolk-shell nanoparticles with tunable selectivity for catalysis.

State-Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, China.
Angewandte Chemie International Edition (Impact Factor: 11.34). 02/2012; 51(9):2229-33. DOI: 10.1002/anie.201106515
Source: PubMed

ABSTRACT Selectivity in nanoreactors: A hybrid yolk-shell nanostructure that contains gold nanoparticles in the core and thermosensitive microgel poly(N-isopropylacrylamide) (PNIPA) as shell is presented. The catalytic selectivity of Au-PNIPA nanoparticles for the reduction of hydrophilic 4-nitrophenol and more hydrophobic nitrobenzene with NaBH(4) can be tuned through the volume transition of PNIPA shell.

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