Assembly of Gold Nanoparticles on Gold Nanorods Using Functionalized Poly(N-isopropylacrylamide) as Polymeric "Glue"

作者：Fan Ziyin; Tebbe Moritz; Fery Andreas; Agarwal Seema; Greiner Andreas^*

来源：Particle & Particle Systems Characterization, 2016, 33(9): 698-702.

DOI：10.1002/ppsc.201600081

• gold
• nanoparticles
• nanorods
• polymer conjugate

A telechelic thermoresponsive polymer, -amino--thiol-poly(N-isopropylacrylamide) (H2N-PNiPAM-SH), is used as the polymeric glue to assemble gold nanoparticles (AuNPs) around gold nanorods (AuNRs) into a satellite structure. Prepared by reversible addition-fragmentation chain transfer polymerization followed by hydrazinolysis, H2N-PNiPAM-SH is able to interlink the two types of the gold building blocks with the thiol-end grafting on AuNRs and the amine-end coordinating on the AuNP surface. The density of the grafted AuNPs on AuNRs can be tuned by adjustingulted satellite-like assembly exhibits unique optical property that was resp the molar ratio between AuNPs and AuNRs in the feed. The resonsive to temperature change.

• 出版日期2016-9