caa a22 4500 44588035X CHVBK 20180317145540.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s00604-011-0649-5 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0649-5 Synthesis of multi-branched gold nanoparticles by reduction of tetrachloroauric acid with Tris base, and their application to SERS and cellular imaging [Elektronische Daten] [Zhihui Luo, Tao Fu, Kun Chen, Heyou Han, Mingqiang Zou] We show that tris base (TB), a widely used buffer substance, can act as a reducing agent to synthesize multi-branched gold nanoparticles (mb-AuNPs) from tetrachloroauric acid in a one-step process. The method is simple, fast, and inexpensive and produces mb-AuNPs that are virtually monodisperse, have a size of about 90nm and typically >6 branches. Their UV-vis absorption peaks can be fine-tuned from the visible to the near-infrared (NIR) region by controlling the concentration of TB. The mb-AuNPs represent an efficient substrate for surface-enhanced Raman scattering (SERS), with an enhancement factor of 1.2 × 105. They were applied as substrates for SERS-based imaging of kidney cells. Figure Multi-branched gold nanoparticles were prepared using tris base as a novel reducing agent that works in the absence of seeds and surfactants. The resulting ss-Au NPs are SERS-active and also were applied to cell imaging. Springer-Verlag, 2011 Multi-branched gold nanoparticles nationallicence Tris base nationallicence Synthesis nationallicence Surface-enhanced Raman scattering nationallicence Cell imaging nationallicence Luo Zhihui State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, 430070, Wuhan, People's Republic of China aut Fu Tao State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, 430070, Wuhan, People's Republic of China aut Chen Kun State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, 430070, Wuhan, People's Republic of China aut Han Heyou State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, 430070, Wuhan, People's Republic of China aut Zou Mingqiang Chinese Academy of Inspection and Quarantine, 100025, Beijing, People's Republic of China aut Microchimica Acta Springer Vienna 175/1-2(2011-10-01), 55-61 0026-3672 175:1-2<55 2011 175 604 https://doi.org/10.1007/s00604-011-0649-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0649-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Luo Zhihui State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, 430070, Wuhan, People's Republic of China aut NATIONALLICENCE 700 1- Fu Tao State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, 430070, Wuhan, People's Republic of China aut NATIONALLICENCE 700 1- Chen Kun State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, 430070, Wuhan, People's Republic of China aut NATIONALLICENCE 700 1- Han Heyou State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, 430070, Wuhan, People's Republic of China aut NATIONALLICENCE 700 1- Zou Mingqiang Chinese Academy of Inspection and Quarantine, 100025, Beijing, People's Republic of China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 175/1-2(2011-10-01), 55-61 0026-3672 175:1-2<55 2011 175 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer