Mapping Impurity of Single-Walled Carbon Nanotubes in Bulk Samples with Multiplex Coherent Anti-Stokes Raman Microscopy

Nano Letters ◽  
2013 ◽  
Vol 13 (2) ◽  
pp. 697-702 ◽  
Author(s):  
Alex S. Duarte ◽  
Jean Rehbinder ◽  
Ricardo R. B. Correia ◽  
Tiago Buckup ◽  
Marcus Motzkus
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Raman Microscopy ◽  
Single Walled Carbon ◽  
Anti Stokes ◽  
Walled Carbon Nanotubes

Surface-Enhanced and Normal Stokes and Anti-Stokes Raman Spectroscopy of Single-Walled Carbon Nanotubes

2000 ◽  
Vol 84 (15) ◽  
pp. 3470-3473 ◽  
Author(s):  
K. Kneipp ◽  
H. Kneipp ◽  
P. Corio ◽  
S. D. M. Brown ◽  
K. Shafer ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Surface Enhanced ◽  
Anti Stokes ◽  
Walled Carbon Nanotubes

Anti-Stokes Raman spectra of single-walled carbon nanotubes

2000 ◽  
Vol 61 (8) ◽  
pp. R5137-R5140 ◽  
Author(s):  
S. D. M. Brown ◽  
P. Corio ◽  
A. Marucci ◽  
M. S. Dresselhaus ◽  
M. A. Pimenta ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectra ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Anti Stokes ◽  
Walled Carbon Nanotubes

scholarly journals Mapping Single Walled Carbon Nanotubes in Photosynthetic Algae by Single-Cell Confocal Raman Microscopy

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5121
Author(s):  
Silvia Orlanducci ◽  
Gianluca Fulgenzi ◽  
Andrea Margonelli ◽  
Giuseppina Rea ◽  
Taras K. Antal ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Excitation Energy Transfer ◽  
Single Walled Carbon Nanotubes ◽  
Raman Microscopy ◽  
Biological Behavior ◽  
Label Free ◽  
Single Walled Carbon ◽  
Spectroscopic Probes ◽  
Walled Carbon Nanotubes ◽  
The Relationship

Carbon nanotubes (CNTs) are among the most exploited carbon allotropes in the emerging technologies of molecular sensing and bioengineering. However, the advancement of algal nanobiotechnology and nanobionics is hindered by the lack of methods for the straightforward visualization of the CNTs inside the cell. Herein, we present a handy and label-free experimental strategy based on visible Raman microscopy to assess the internalization of single-walled carbon nanotubes (SWCNTs) using the model photosynthetic alga Chlamydomonas reinhardtii as a recipient. The relationship between the properties of SWCNTs and their biological behavior was demonstrated, along with the occurrence of excitation energy transfer from the excited chlorophyll molecules to the SWCNTs. The non-radiative deactivation of the chlorophyll excitation promoted by the SWCNTs enables the recording of Raman signals originating from cellular compounds located near the nanotubes, such as carotenoids, polyphosphates, and starch. Furthermore, the outcome of this study unveils the possibility to exploit SWCNTs as spectroscopic probes in photosynthetic and non-photosynthetic systems where the fluorescence background hinders the acquisition of Raman scattering signals.

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