scholarly journals Simple analytic tool for spectral control of dipole plasmon resonance frequency for gold and silver nanoparticles

2013 ◽  
Vol 5 (2) ◽  
Author(s):  
Krystyna Kolwas ◽  
Anastasiya Derkachova
Keyword(s):  
Silver Nanoparticles ◽  
Resonance Frequency ◽  
Plasmon Resonance ◽  
Gold And Silver Nanoparticles ◽  
Analytic Tool ◽  
Spectral Control ◽  
Plasmon Resonance Frequency

Electrically controlled surface plasmon resonance frequency of gold nanorods

2006 ◽  
Vol 89 (10) ◽  
pp. 103107 ◽  
Author(s):  
K. C. Chu ◽  
C. Y. Chao ◽  
Y. F. Chen ◽  
Y. C. Wu ◽  
C. C. Chen
Keyword(s):  
Surface Plasmon Resonance ◽  
Resonance Frequency ◽  
Surface Plasmon ◽  
Gold Nanorods ◽  
Plasmon Resonance ◽  
Plasmon Resonance Frequency

scholarly journals One-Pot Synthesis of Multi-Branch Gold Nanoparticles and Investigation of Their SERS Performance

Biosensors ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 113 ◽  
Author(s):  
Weifeng Lv ◽  
Chenjie Gu ◽  
Shuwen Zeng ◽  
Jiaguang Han ◽  
Tao Jiang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ascorbic Acid ◽  
Surface Plasmon Resonance ◽  
Resonance Frequency ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Localized Surface Plasmon ◽  
One Pot ◽  
Plasmon Resonance Frequency

Gold nanoparticles with multiple branches have attracted intensive studies for their application in sensing of low trace molecules. A large number of the merits found on the gold nanoparticles for the above applications are attributed to the strong localized surface plasmon resonance excited by the incident radiation. However, a facile and flexible way of synthesizing the multi-branch gold nanoparticles with tunable localized surface plasmon resonance frequency is still a challenge for the plasmonic research field. Herein, we report an efficient one-pot synthesis of multi-branch gold nanoparticles method that resembles a seed-medicated approach while using no further chemicals except chloroauric acid, ascorbic acid and 4-(2-Hydroxyethyl)-1-piperazinyl]-ethanesulfonic acid. By controlling the amounts of ascorbic acid volumes in the reaction mixture, the morphology and the localized surface plasmon resonance frequency of the synthesized multi-branch gold nanoparticles can be manipulated conveniently. Moreover, using the 4-Mercaptobenzoic acid as the Raman reporter, the multi-branch gold nanoparticles show superior surface-enhanced Raman spectroscopy characteristics that can be potentially used in chemical and biological sensing.

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