%0 Journal Article
%A Vijayaraghavan, Priya
%A Liu, Cheng-Hong
%A Hwang, Kuo Chu
%D 2016
%T Synthesis
of Multibranched Gold Nanoechinus Using a Gemini Cationic Surfactant
and Its Application for Surface Enhanced Raman Scattering
%U https://acs.figshare.com/articles/journal_contribution/Synthesis_of_Multibranched_Gold_Nanoechinus_Using_a_Gemini_Cationic_Surfactant_and_Its_Application_for_Surface_Enhanced_Raman_Scattering/3798957
%R 10.1021/acsami.6b07218.s001
%2 https://ndownloader.figshare.com/files/5914578
%K multibranched
%K nanoechinu
%K NIR
%K C 14 C 2 C 14 Br 2 surfactant
%K XRD
%K Systematic time-dependent TEM
%K nanorod
%K UV
%K SERS enhancement ability
%K LSPR
%K Surface Enhanced Raman Scattering
%K NE
%K Multibranched Gold Nanoechinus
%K Gemini Cationic Surfactant
%K seed-mediated surfactant-directed approach
%K surface plasmon resonance
%K AgNO 3
%K analysis
%X High-yield
multibranched Au nanoechinus possessing lengthy and dense branched
nanorods on the surface were synthesized using a seed-mediated surfactant-directed
approach in the presence of gemini cationic surfactant N,N,N′N′-tetramethyl-N,N′-ditetradecylethane-1,2-diaminium
bromide (C14C2C14Br2),
HAuCl4, AgNO3, and ascorbic acid. C14C2C14Br2 surfactant provides a versatile
template in designing the unique morphology of Au nanoechinus with
the assistance of AgNO3. UV–vis spectroscopic analysis
proves that Au nanoechinus possess a unique intense broad localized
surface plasmon resonance (LSPR) peak, which extends from 400 to 1700
nm in the NIR region making a highly potential platform for biomedical
applications. Systematic time-dependent TEM, UV–vis–NIR,
and XRD analysis were performed to monitor the morphological evolution
of multibranched Au nanoechinus. It was found that the surface of
branched nanorods of Au NE preferentially grew along (111) crystal
planes. Furthermore, as-synthesized Au nanoechinus shows excellent
SERS enhancement ability for dopamine inside HeLa cells.
%I ACS Publications