TY  - JOUR
A1  - Henning, Ricky
A1  - Liebig, Ferenc
A1  - Prietzel, Claudia Christina
A1  - Klemke, Bastian
A1  - Koetz, Joachim
T1  - Gold nanotriangles with magnetite satellites
JF  - Colloids and surfaces : an international journal devoted to the principles and applications of colloid and interface science ; A, Physicochemical and engineering aspects
N2  - This work describes the synthesis of hybrid particles of gold nanotriangles (AuNTs) with magnetite nanoparticles (MNPs) by using 1-mercaptopropyl-3-trimethoxysilan (MPTMS) and L-cysteine as linker molecules. Due to the combination of superparamagnetic properties of MNPs with optical properties of the AuNTs, nanoplatelet-satellite hybrid nanostructures with combined features become available. By using MPTMS with silan groups as linker molecule a magnetic "cloud" with embedded AuNTs can be separated. In presence of L-cysteine as linker molecule at pH > pH(iso) a more unordered aggregate structure of MNPs is obtained due to the dimerization of the L-cysteine. At pH < pH(iso) water soluble positively charged AuNTs with satellite MNPs can be synthesized. The time-dependent loading with MNP satellites under release of the extinction and magnetization offer a hybrid material, which is of special relevance for biomedical applications and plasmonic catalysis.
KW  - nanotriangles
KW  - Superparamagnetic magnetite
KW  - Satellite hybrid
KW  - nanostructures
KW  - L-Cysteine
KW  - UV-Vis-NIR
KW  - HRTEM
Y1  - 2020
U6  - https://doi.org/10.1016/j.colsurfa.2020.124913
SN  - 0927-7757
SN  - 1873-4359
VL  - 600
PB  - Elsevier
CY  - Amsterdam
ER  -