Journal
NANOSCALE RESEARCH LETTERS
Volume 4, Issue 1, Pages 84-89Publisher
SPRINGEROPEN
DOI: 10.1007/s11671-008-9206-5
Keywords
Nanocables; Gold nanowires; Poly(N-isopropylacrylamide); Surface-initiated atom transfer radical polymerization Thermoresponsive
Funding
- Program for New Century Excellent Talents in University [NCET-050527]
- Natural Science Foundation of China [NSFC-20774082, 50830106]
- National High Technology Research and Development Program of China [2006AA03Z329]
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Thermosensitive nanocables consisting of Au nanowire cores and poly(N-isopropylacrylamide) sheaths (denoted as Au/PNIPAAm) were synthesized by surface-initiated atom transfer radical polymerization (SI-ATRP). The formation of PNIPAAm sheath was verified by Fourier transform infrared (FTIR) and hydrogen nuclear magnetic resonance (H-1 NMR) spectroscopy. Transmission electron microscope (TEM) results confirmed the core/shell structure of nanohybrids. The thickness and density of PNIPAAm sheaths can be adjusted by controlling the amount of cross-linker during the polymerization. Signature temperature response was observed from Au/cross-linked-PNIPAAm nanocables. Such smart nanocables show immense potentials as building blocks for novel thermosensitive nanodevices in future.
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