title: Synthesis of multifunctional composite microgels via in situ Ni growth on pNIPAM-coated Au nanoparticles.
abstract: Novel colloidal composites have been designed to incorporate multiple functionalities that allow optical detection, magnetic manipulation, molecular trapping, and thermal response. Such particles are made of gold nanoparticle cores covered by a thin layer of metallic nickel and a poly(N-isopropylacrylamide) (pNIPAM) shell. While the gold cores provide efficient optical response through localized surface plasmon resonances, nickel allows external magnetic manipulation and the pNIPAM shell can be swollen or collapsed as a function of temperature, thus allowing capture and release of various types of molecules.
authors.affiliation: Departamento de Química Física and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo, Spain.
authors.forename: Ana
authors.initials: A
authors.lastname: Sánchez-Iglesias
authors.forename: Marek
authors.initials: M
authors.lastname: Grzelczak
authors.forename: Benito
authors.initials: B
authors.lastname: Rodríguez-González
authors.forename: Pablo
authors.initials: P
authors.lastname: Guardia-Girós
authors.forename: Isabel
authors.initials: I
authors.lastname: Pastoriza-Santos
authors.forename: Jorge
authors.initials: J
authors.lastname: Pérez-Juste
authors.forename: Maurizio
authors.initials: M
authors.lastname: Prato
authors.forename: Luis M
authors.initials: LM
authors.lastname: Liz-Marzán
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D005782:Gels; D006046:Gold / Q000737:chemistry*; D008280:Magnetics; D053768:Metal Nanoparticles / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D055616:Microtechnology / Q000379:methods*; D009532:Nickel / Q000737:chemistry*; D055620:Optical Phenomena; D013052:Spectrometry, X-Ray Emission; D013696:Temperature
chemical_list: D000180:Acrylic Resins; D005782:Gels; C052970:poly-N-isopropylacrylamide; D006046:Gold; D009532:Nickel