One-pot synthesis affords perfectly six-fold symmetrical Au microsnowflakes for excellent electrochemical biosensing and surface-enhanced Raman scattering assays

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 16074-16081
Author(s):  
Yan Zhang ◽  
Yonghai Yue ◽  
Yi Peng ◽  
Chengcheng Huang ◽  
Lidong Li ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
One Pot ◽  
One Pot Synthesis ◽  
Electrochemical Biosensing ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Herein, Au microsnowflakes with six-fold symmetrical branches were successfully synthesized.

One-pot synthesis of gold nanodimers and their use as surface-enhanced Raman scattering tags

2016 ◽  
Vol 40 (9) ◽  
pp. 7299-7302 ◽  
Author(s):  
Noelia Vilar-Vidal ◽  
Sébastien Bonhommeau ◽  
David Talaga ◽  
Serge Ravaine
Keyword(s):  
Raman Scattering ◽  
Hot Spot ◽  
Surface Enhanced Raman Scattering ◽  
One Pot ◽  
One Pot Synthesis ◽  
Surface Enhanced ◽  
Enhancement Factors ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Gold dimers consisting of 40 nm-diameter nanospheres show enhancement factors as high as ∼1.8 × 107at the hot-spot level.

One-Pot Synthesis of Coral-Shaped Gold Nanostructures for Surface-Enhanced Raman Scattering

2011 ◽  
Vol 14 ◽  
pp. 47-55 ◽  
Author(s):  
Jian Hui Yang ◽  
Dhiraj K. Sardar
Keyword(s):  
Raman Scattering ◽  
Ethylenediaminetetraacetic Acid ◽  
Chelating Agent ◽  
Surface Enhanced Raman Scattering ◽  
Gold Nanostructures ◽  
Molar Ratio ◽  
One Pot ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

In this work, a chelating agent, ethylenediaminetetraacetic acid (EDTA) was used for the controllable synthesis of gold nanostructures in aqueous solution. Coral-shaped Au nanostructures were synthesized by reducing HAuCl4 with EDTA. EDTA serves not only as a reducing agent but also as a particle capping agent in the formation of coral-shaped Au nanostructures. It is found that the molar ratio of HAuCl4:EDTA and reacted temperature play significant effects on the formation and growth of these novel nanostructures. These Au nanostructures could serve as highly sensitive and reproductive surface-enhanced Raman scattering (SERS) substrates for chemical and biological detection.

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