Synthesis and photoelectrochemical cell properties of vertically grown α-Fe2O3 nanorod arrays on a gold nanorod substrate

2010 ◽  
Vol 20 (11) ◽  
pp. 2247 ◽  
Author(s):  
Aiming Mao ◽  
Gui Young Han ◽  
Jong Hyeok Park
Keyword(s):  
Gold Nanorod ◽  
Photoelectrochemical Cell ◽  
Nanorod Arrays

Ultrahigh surface sensitivity of deposited gold nanorod arrays for nanoplasmonic biosensing

2021 ◽  
Vol 23 ◽  
pp. 101046
Author(s):  
Abdul Rahim Ferhan ◽  
Youngkyu Hwang ◽  
Mohammed Shahrudin Bin Ibrahim ◽  
Shikhar Anand ◽  
Ahram Kim ◽  
...  
Keyword(s):  
Gold Nanorod ◽  
Nanorod Arrays ◽  
Surface Sensitivity

scholarly journals Silver-Nanoparticle-Decorated Gold Nanorod Arrays via Bioinspired Polydopamine Coating as Surface-Enhanced Raman Spectroscopy (SERS) Platforms

Coatings ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 198 ◽  
Author(s):  
Mehmet Yilmaz
Keyword(s):  
Raman Spectroscopy ◽  
Deposition Time ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanorod ◽  
Nanorod Arrays ◽  
Plasmonic Material ◽  
Relative Standard ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Controlled Deposition

The controlled deposition of nanoparticles onto 3-D nanostructured films is still facing challenges due to the uncontrolled aggregation of colloidal nanoparticles. In the context of this study, a simple yet effective approach is demonstrated to decorate the silver nanoparticles (AgNP) onto the 3-D and anisotropic gold nanorod arrays (GNAs) through a bioinspired polydopamine (PDOP) coating to fabricate surface-enhanced Raman spectroscopy (SERS) platforms. Since the Raman reporter molecules (methylene blue, MB, 10 µM) were not adsorbed directly on the surface of the plasmonic material, a remarkable decrease in SERS signals was detected for the PDOP-coated GNAs (GNA@PDOP) platforms. However, after uniform and well-controlled AgNP decoration on the GNA@PDOP (GNA@PDOP@AgNP), huge enhancement was observed in SERS signals from the resultant platform due to the synergistic action which originated from the interaction of GNAs and AgNPs. I also detected that PDOP deposition time (i.e., PDOP film thickness) is the dominant parameter that determines the SERS activity of the final system and 30 min of PDOP deposition time (i.e., 3 nm of PDOP thickness) is the optimum value to obtain the highest SERS signal. To test the reproducibility of GNA@PDOP@AgNP platforms, relative standard deviation (RSD) values for the characteristic peaks of MB were found to be less than 0.17, demonstrating the acceptable reproducibility all over the proposed platform. This report suggests that GNA@PDOP@AgNP system may be used as a robust platform for practical SERS applications.

Self-Assembly of Vertically Aligned Gold Nanorod Arrays on Patterned Substrates

2012 ◽  
Vol 51 (35) ◽  
pp. 8732-8735 ◽  
Author(s):  
Thibaut Thai ◽  
Yuanhui Zheng ◽  
Soon Hock Ng ◽  
Stephen Mudie ◽  
Matteo Altissimo ◽  
...  
Keyword(s):  
Self Assembly ◽  
Gold Nanorod ◽  
Nanorod Arrays ◽  
Patterned Substrates ◽  
Vertically Aligned

Fabrication of gold nanorod arrays by templating from porous alumina

2005 ◽  
Vol 16 (10) ◽  
pp. 2275-2281 ◽  
Author(s):  
Dusan Losic ◽  
Joe G Shapter ◽  
James G Mitchell ◽  
Nicolas H Voelcker
Keyword(s):  
Porous Alumina ◽  
Gold Nanorod ◽  
Nanorod Arrays

scholarly journals Reversible changes in the orientation of gold nanorod arrays on polymer brushes

2020 ◽  
Vol 2 (9) ◽  
pp. 3798-3803 ◽  
Author(s):  
Yu Sekizawa ◽  
Hideyuki Mitomo ◽  
Mizuki Nihei ◽  
Satoshi Nakamura ◽  
Yusuke Yonamine ◽  
...  
Keyword(s):  
Polymer Brushes ◽  
Electrostatic Interactions ◽  
Gold Nanorod ◽  
Nanorod Arrays ◽  
Solution Ph ◽  
Anionic Polymer

Gold nanorod (GNR) arrays were prepared by GNR attachment on anionic polymer brushes via electrostatic interactions and their orientation reversibly changed by the modulation of interactions between GNRs and polymers via changes in the solution pH.

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