Fluorescence Quenching of Single-Walled Carbon Nanotubes in SDBS Surfactant Suspension by Metal Ions:  Quenching Efficiency as a Function of Metal and Nanotube Identity†

2007 ◽  
Vol 111 (48) ◽  
pp. 17812-17820 ◽  
Author(s):  
Jonathan J. Brege ◽  
Clayton Gallaway ◽  
Andrew R. Barron
Nanoscale ◽  
2018 ◽  
Vol 10 (41) ◽  
pp. 19628-19637 ◽  
Author(s):  
Pavan M. V. Raja ◽  
Gibran L. Esquenazi ◽  
Kourtney D. Wright ◽  
Cathren E. Gowenlock ◽  
Bruce E. Brinson ◽  
...  

The direction of electromigration of SWCNTs in the absence of surfactant depends on the presence of catalyst residue, surface functional groups and adsorbed metal ions.


2011 ◽  
Vol 47 (25) ◽  
pp. 7167 ◽  
Author(s):  
Zhaosheng Qian ◽  
Chen Wang ◽  
Hui Feng ◽  
Congcong Chen ◽  
Jin Zhou ◽  
...  

2017 ◽  
Vol 22 (3) ◽  
pp. 201 ◽  
Author(s):  
John Castillo ◽  
Herminsul Cano

This paper presents a study of the fluorescence quenching of 1-hydroxypyrene-3,6,8-trisulfonic acid (HPTS) in the presence of single-walled carbon nanotubes (SWCNT) using a fluorescence method. To investigate the quenching mechanism (dynamic or static) of HPTS, Stern-Volmer plots of single walled carbon nanotubes at different temperatures were used. The positive deviation from linearity in Stern-Volmer plots suggests that single walled carbon nanotubes follow a static quenching mechanism evidenced by the formation of a stable ground state complex. The results presented here help us to clarify the quenching mechanism in the interaction of a pyrene derived dye and carbon nanotubes. This study will open new possibilities in the use of the conjugate formed by SWCNTs and HPTS in the fabrication of a<br />biosensor based on intracellular fluorescent probes.


2018 ◽  
Vol 20 (6) ◽  
pp. 4527-4537 ◽  
Author(s):  
Ruma Das ◽  
Gone Rajender ◽  
P. K. Giri

We explore the mechanism of the fluorescence enhancement and fluorescence quenching effect of single walled carbon nanotubes (SWCNTs) on highly fluorescent graphene quantum dots (GQDs) over a wide range of concentrations of SWCNTs.


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