+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Gold mesostructures with tailored surface topography and their self-assembly arrays for surface-enhanced Raman spectroscopy

Gold mesostructures with tailored surface topography and their self-assembly arrays for surface-enhanced Raman spectroscopy

Nano Letters 10(12): 5006-5013

We report a facile particle mediated aggregation protocol to synthesize "sea urchin"-like gold mesoparticles with tailored surface topography via a secondary nucleation and growth process. Surprisingly, these multitip Au mesoparticles are capable of self-assembling into monolayer or multiple layer arrays on Si substrates with a convincing reproducibility and homogeneity over large areas. Raman measurements show that these individual sea urchin-like multitipped gold mesoparticles exhibit a high enhancement of surface-enhanced Raman scattering (SERS). In addition, the sea urchin-like mesoparticle arrays display a further enhancement of SERS by 1 or 2 orders of magnitude over the individual mesoparticle due to the formation of additional hot spots between the particles. The current protocol stands out as a potentially interesting approach for the fabrication of technologically important SERS-based sensors.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 053431950

Download citation: RISBibTeXText

PMID: 21090587

DOI: 10.1021/nl103161q

Related references

Au nanorod arrays tailored for surface-enhanced Raman spectroscopy. Analytical Sciences 23(7): 829-833, 2007

Gold-decorated titania nanotube arrays as dual-functional platform for surface-enhanced Raman spectroscopy and surface-assisted laser desorption/ionization mass spectrometry. Acs Applied Materials and Interfaces 6(11): 8387-8395, 2014

Self-Assembly of Large Gold Nanoparticles for Surface-Enhanced Raman Spectroscopy. Acs Applied Materials and Interfaces 9(15): 13457-13470, 2017

Gold-coated nanorod arrays as highly sensitive substrates for surface-enhanced raman spectroscopy. Langmuir 24(24): 14172-5, 2008

Self-assembled quasi-hexagonal arrays of gold nanoparticles with small gaps for surface-enhanced Raman spectroscopy. Beilstein Journal of Nanotechnology 9: 1977-1985, 2018

Gold mesoflower arrays with sub-10 nm intraparticle gaps for highly sensitive and repeatable surface enhanced Raman spectroscopy. Nanotechnology 23(16): 165604, 2012

Surface-enhanced Raman spectroscopy of gastric cancer serum with gold nanoparticles/silicon nanowire arrays. Optik - International Journal for Light and Electron Optics 127(19): 7902-7907, 2016

Surface-enhanced Raman spectroscopic and surface plasmon resonance in situ study of self-assembly of 4-mercaptobenzoic acid on gold surface. Journal of Molecular Structure 976(1-3): 297-300, 2010

Polymer nanopillar-gold arrays as surface-enhanced Raman spectroscopy substrate for the simultaneous detection of multiple genes. Acs Nano 8(10): 10496-10506, 2014

Ordered gold nanoparticle arrays as surface-enhanced Raman spectroscopy substrates for label-free detection of nitroexplosives. Talanta 83(3): 1023-1029, 2011

Combination of periodic hybrid nanopillar arrays and gold nanorods for improving detection performance of surface-enhanced Raman spectroscopy. Sensors and Actuators B: Chemical 258: 18-24, 2018

Surface enhanced resonance raman scattering spectroscopy as a surface topography probe in plant photosynthetic membranes. Photochemistry & Photobiology 56(2): 263-270, 1992

Using Standing Gold Nanorod Arrays as Surface-Enhanced Raman Spectroscopy (SERS) Substrates for Detection of Carbaryl Residues in Fruit Juice and Milk. Journal of Agricultural and Food Chemistry 65(3): 666-674, 2017

Long-range surface plasmon resonance and surface-enhanced Raman scattering on X-shaped gold plasmonic nanohole arrays. Physical Chemistry Chemical Physics 19(35): 24126-24134, 2017

Gold nanoisland arrays by repeated deposition and post-deposition annealing for surface-enhanced Raman spectroscopy. Nanotechnology 24(35): 355706, 2013