scholarly journals Ultrasound-assisted synthesis of PbS quantum dots stabilized by 1,2-benzenedimethanethiol and attachment to single-walled carbon nanotubes

2014 ◽  
Vol 21 (2) ◽  
pp. 892-900 ◽  
Author(s):  
Anirban Das ◽  
Chien M. Wai
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Ultrasound Assisted ◽  
Walled Carbon Nanotubes ◽  
Pbs Quantum Dots

scholarly journals Noncovalent Attachment of PbS Quantum Dots to Single- and Multiwalled Carbon Nanotubes

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Anirban Das ◽  
Eric Hall ◽  
Chien M. Wai
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Oleic Acid ◽  
Multiwalled Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Stacking Interactions ◽  
Multiwalled Carbon ◽  
Nir Fluorescence ◽  
Walled Carbon Nanotubes ◽  
Pbs Quantum Dots

Attachment of PbS quantum dots (QD) to single-walled carbon nanotubes (SWNT) and multiwalled carbon nanotubes (MWCNT) is described; wherein commercially obtained PbS-QD of size 2.7 nm, stabilized by oleic acid, are added to a suspension of single- or multiwalled carbon nanotubes (CNT) prefunctionalized noncovalently with 1,2-benzenedimethanethiol (1,2-BDMT) in ethanol. The aromatic part of 1,2-BDMT attaches to the CNT byπ-πstacking interactions, noncovalently functionalizing the CNT. The thiol part of the 1,2-BDMT on the functionalized CNT replaces oleic acid on the surface of the QD facilitating the noncovalent attachment of the QD to the CNT. The composites were characterized by TEM and FTIR spectroscopy. Quenching of NIR fluorescence of the PbS-QD on attachment to the carbon nanotubes (CNT) was observed, indicating FRET from the QD to the CNT.

CHARACTERIZATION OF QUANTUM DOTS, SINGLE WALLED CARBON NANOTUBES AND NICKEL OCTADECYLPHTHALOCYANINE CONJUGATES

2012 ◽  
Vol 11 (02) ◽  
pp. 1250022 ◽  
Author(s):  
SAMSON KHENE ◽  
TEBELLO NYOKONG
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Ultra Violet ◽  
Single Walled Carbon Nanotubes ◽  
X Ray ◽  
Single Walled Carbon ◽  
Test Molecule ◽  
Electro Oxidation ◽  
Walled Carbon Nanotubes

In this work nickel octadecylphthalocyanine (NiPc(C10H21)8) and cadmium telluride quantum dots (QDs) capped with thioglycolic acid (TGA) are adsorbed on single walled carbon nanotubes (SWCNT) to form NiPc(C10H21)8 -SWCNT-QDs conjugate. X-ray photoelectron, ultra violet/visible and Raman spectroscopies are used to characterize the conjugate. SWCNT, poly- Ni(O)Pc(C10H21)8 , NiPc(C10H21)8 -SWCNT and NiPc(C10H21)8 -SWCNT-QDs complexes are used to modify glassy carbon electrode (GCE) and used for the electro-oxidation of pentachlorophenol as a test molecule. NiPc(C10H21)8 -SWCNT-QDs electrode gave the best detection current for pentachlorophenol.

Efficient electrochemical biosensors for ethynylestradiol based on the laccase enzyme supported on single walled carbon nanotubes decorated with nanocrystalline carbon quantum dots

2016 ◽  
Vol 8 (39) ◽  
pp. 7254-7259 ◽  
Author(s):  
T. C. Canevari ◽  
F. H. Cincotto ◽  
M. Nakamura ◽  
S. A. S. Machado ◽  
H. E. Toma
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Single Walled Carbon Nanotubes ◽  
Carbon Quantum Dots ◽  
Electrochemical Biosensors ◽  
Hybrid Nanomaterial ◽  
Single Walled Carbon ◽  
Laccase Enzyme ◽  
Walled Carbon Nanotubes

A new hybrid nanomaterial based on single-walled carbon nanotubes incorporating nanocrystalline carbon quantum dots (SWCNT/C-dots) was developed.

Full-Length Single-Walled Carbon Nanotubes Decorated with Streptavidin-Conjugated Quantum Dots as Multivalent Intracellular Fluorescent Nanoprobes

2006 ◽  
Vol 7 (8) ◽  
pp. 2259-2263 ◽  
Author(s):  
Massimo Bottini ◽  
Fabio Cerignoli ◽  
Marcia I. Dawson ◽  
Andrea Magrini ◽  
Nicola Rosato ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Single Walled Carbon Nanotubes ◽  
Full Length ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes
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