Surface-enhanced Raman spectroscopy and correlated scanning electron microscopy of individual carbon nanotubes

2007 ◽  
Vol 91 (22) ◽  
pp. 223105 ◽  
Author(s):  
Rajay Kumar ◽  
Hao Zhou ◽  
Stephen B. Cronin
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Scanning Electron Microscopy ◽  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Scanning Electron

Scanning Electron Microscopy and Surface Enhanced Raman Spectroscopy Correlation Studies of Functionalized Composite Organic-Inorganic SERS Nanoparticles on Cancer Cells

2011 ◽  
Vol 1316 ◽  
Author(s):  
Ai Leen Koh ◽  
Robert Sinclair
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Raman Spectroscopy ◽  
Cancer Cells ◽  
Surface Enhanced Raman Spectroscopy ◽  
Excitation Light ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Intensity ◽  
Scanning Electron

ABSTRACTComposite Organic-Inorganic Nanoparticles (COINs) are a novel type of surface-enhanced Raman (SER) scattering nanoparticle formed by aggregating inorganic silver particles in the presence of a chosen organic molecule with a distinct Raman fingerprint. Binding between antibody-functionalized COINs and cells is detected primarily using Raman spectroscopy, which measures spectral shifts of the excitation light due to inelastic scattering. It has been suggested that the amount of antibody-conjugated COINs binding on cells will vary according to the antigen-expression levels in cells and will lead to changes in measured SERS intensities. COINs functionalized with antibodies CD54 and CD8 were conjugated to U937 and SupT1 cancer cells and investigated in this study. SERS intensity measurements were obtained from each of the four sample variants and normalized against control samples comprising non-antibody-functionalized COINs with cells. The amount of COINs binding on cells was determined using scanning electron microscopy (SEM) and correlated with the SER spectroscopy intensity. Although we found a positive correlation between the number of COINs binding to cells and their respective SERS intensity, this relationship is not one-to-one, nor does it appear to be linear. We demonstrated that SEM imaging and SER spectroscopy can complement each other to provide information about COINs binding onto cancer cells.

Surface-enhanced Raman scattering (SERS) by Ag nanoparticles on anodized TiO2−X nanotubes

2019 ◽  
Vol 34 (01n03) ◽  
pp. 2040009
Author(s):  
Ting Zhang ◽  
Junzhi Ye ◽  
Rakesh Arul ◽  
Tingxuan Yang ◽  
Yixuan Wang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Raman Spectroscopy ◽  
Magnetron Sputtering ◽  
Ag Nanoparticles ◽  
Raman Enhancement ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Scanning Electron

In this work, Ag nanoparticles were deposited in the TiO[Formula: see text] nanotube films through magnetron sputtering to form Ag-TiO[Formula: see text] nanocomposite. Scanning electron microscopy (SEM) was used to study microstructure and surface morphology. Rhodamine B (RhB) was deposited on the surface of Ag-TiO[Formula: see text] substrate for Raman spectroscopy test. The size of Ag nanoparticles can be controlled by changing the magnetron sputtering time. The result indicated that sputtering for 30 s obtained the highest Raman enhancement.

Surface-enhanced Raman spectroscopy characterisation of functionalised multi-walled carbon nanotubes

2015 ◽  
Vol 17 (33) ◽  
pp. 21373-21380 ◽  
Author(s):  
Sabina Botti ◽  
Susanna Laurenzi ◽  
Luca Mezi ◽  
Alessandro Rufoloni ◽  
M. Gabriella Santonicola
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Spectral Features ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

By applying SERS, we recorded spectral features from functional molecules bound to the nanotube surface, which are otherwise very difficult to see.

Self-assembly of ultrathin gold nanowires and single walled carbon nanotubes as a highly sensitive substrate for surface enhanced Raman spectroscopy

2016 ◽  
Vol 40 (9) ◽  
pp. 7286-7289 ◽  
Author(s):  
Yuanchao Zhang ◽  
Jingquan Liu ◽  
Da Li ◽  
Fuhua Yan ◽  
Xin Wang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Self Assembly ◽  
Single Walled Carbon Nanotubes ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanowires ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Walled Carbon Nanotubes

Self-assembly of ultrathin gold nanowires and single-walled carbon nanotubes as highly sensitive substrates for surface enhanced Raman spectroscopy.

Surface-enhanced Raman spectroscopy using gold-coated horizontally aligned carbon nanotubes

2012 ◽  
Vol 23 (20) ◽  
pp. 205702 ◽  
Author(s):  
X N He ◽  
Y Gao ◽  
M Mahjouri-Samani ◽  
P N Black ◽  
J Allen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Aligned Carbon Nanotubes ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals Surface-Enhanced Raman Spectroscopy of Carbon Nanotubes in Aqueous Solution

2012 ◽  
Vol 70 (14) ◽  
pp. 1533 ◽  
Author(s):  
Yang Niu ◽  
Qinghai Liu ◽  
Juan Yang ◽  
Dongliang Gao ◽  
Xiaojun Qin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solution ◽  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals Polarized surface-enhanced Raman spectroscopy of suspended carbon nanotubes by Pt-Re nanoantennas

2017 ◽  
Vol 96 (3) ◽  
Author(s):  
Christian Bäuml ◽  
Tobias Korn ◽  
Christoph Lange ◽  
Christian Schüller ◽  
Christoph Strunk ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Polarized Surface
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