Large-Area Au-Nanoparticle-Functionalized Si Nanorod Arrays for Spatially Uniform Surface-Enhanced Raman Spectroscopy

ACS Nano ◽  
2017 ◽  
Vol 11 (2) ◽  
pp. 1478-1487 ◽  
Author(s):  
Dongdong Lin ◽  
Zilong Wu ◽  
Shujie Li ◽  
Wenqi Zhao ◽  
Chongjun Ma ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Au Nanoparticle ◽  
Nanorod Arrays ◽  
Large Area ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Combining vancomycin-modified gold nanorod arrays and colloidal nanoparticles as the sandwich model for discrimination of gram-positive bacteria and their detection via surface-enhanced Raman spectroscopy (SERS)

The Analyst ◽  
2021 ◽  
Author(s):  
Araz Norouz Dizaji ◽  
Nihal Simsek Ozek ◽  
Ferhunde Aysin ◽  
Ayfer Calis ◽  
Asli Yilmaz ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Colloidal Nanoparticles ◽  
Nanorod Arrays ◽  
Gram Positive ◽  
Gram Positive Bacteria ◽  
Sensor Platform ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

This study reports the development of a highly sensitive antibiotic-based discrimination and sensor platform for the detection of gram-positive bacteria through surface-enhanced Raman spectroscopy (SERS). Herein, the combination of gold...

Physically Self-assembled Au Nanorod Arrays for SERS

2006 ◽  
Vol 951 ◽  
Author(s):  
Motofumi Suzuki ◽  
Kaoru Nakajima ◽  
Kenji Kimura ◽  
Takao Fukuoka ◽  
Yasushige Mori
Keyword(s):  
Raman Spectroscopy ◽  
Low Cost ◽  
Major Axis ◽  
Surface Enhanced Raman Spectroscopy ◽  
Nanorod Arrays ◽  
Au Nanorods ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Oblique Deposition ◽  
Selection Of

ABSTRACTWe have demonstrated surface-enhanced Raman spectroscopy on arrays of Au nanorods aligned in line by a dynamic oblique deposition technique. For the light polarized along the major axis of the nanorods, the plasma resonance of the Au nanorods has been tuned to a wavelength suitable for Raman spectroscopy. The Raman scattering on the discrete nanorods is enhanced significantly compared with that on semi continuous Au films. Since the preparation process is physically bottom-up, it is robust in its selection of the materials and is useful in providing the SERS sensors at low cost.

Large-Area Hybrid Plasmonic Optical Cavity (HPOC) Substrates for Surface-Enhanced Raman Spectroscopy

2018 ◽  
Vol 28 (43) ◽  
pp. 1802263 ◽  
Author(s):  
Bowen Liu ◽  
Xu Yao ◽  
Shu Chen ◽  
Haixin Lin ◽  
Zhilin Yang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Optical Cavity ◽  
Surface Enhanced Raman Spectroscopy ◽  
Large Area ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

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.

scholarly journals Surface-Enhanced Raman Spectroscopy Based Quantitative Bioassay on Aptamer-Functionalized Nanopillars Using Large-Area Raman Mapping

ACS Nano ◽  
2013 ◽  
Vol 7 (6) ◽  
pp. 5350-5359 ◽  
Author(s):  
Jaeyoung Yang ◽  
Mirko Palla ◽  
Filippo Giacomo Bosco ◽  
Tomas Rindzevicius ◽  
Tommy Sonne Alstrøm ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Raman Mapping ◽  
Large Area ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Quantitative Bioassay
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