Abstract
Fe3O4@PNIPAM@Au nanocomposites were synthesized via a sequence of reactions including thermal decomposition for iron-oxide synthesis, surface modification by dopamine and a chain transfer agent S-1-dodecyl-S′-(α, α′-dimethyl-α″-acetic acid)trithiocarbonate, surface-initiated Reversible Addition-Fragmentation Chain Transfer (RAFT) polymerization of N-isopropylacrylamide (NIPAM), reduction of RAFT reagent, and S–Au interaction. Superparamagnetism and surface plasmon resonance (SPR) phenomenon of the nanocomposites were investigated by vibrating sample magnetometry (VSM) and UV–vis spectra. The UV–vis spectra at different ambient temperatures implied the thermo-responsivity of the nanocomposites. The surface of Au can be further functionalized when needed. Such nanocomposites inherit superparamagnetism of Fe3O4, thermo-responsivity of PNIPAM, and SPR of Au nanoparticles, and could have potential applications in biomedical, optical, analytical, and catalytic fields.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
