Encapsulation and Growth of Gold Nanoparticles in Thermoresponsive Microgels


  • This work has been funded by the Spanish Ministerio de Educación y Ciencia (Projects NAN2004-09133-C03-03 and MAT2007-62696) and the Xunta de Galicia. Supporting Information is available online from Wiley InterScience or from the authors.


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Gold nanoparticles are encapsulatedwithin thermoresponsive pNIPAMmigrogels through an easy two-stepprotocol. The core/shell structure ofthe composite is characterized by TEM,AFM, PCS, and UV-vis spectroscopy. The restricted environment and thehigh porosity of the microgel shell arestudied through the overgrowth of thegold core.