scholarly journals New hybrid materials with porphyrin-ferrocene and porphyrin-pyrene covalently linked to single-walled carbon nanotubes

RSC Advances ◽  
2013 ◽  
Vol 3 (16) ◽  
pp. 5539 ◽  
Author(s):  
Solon P. Economopoulos ◽  
Angeliki Skondra ◽  
Kalliopi Ladomenou ◽  
Nikolaos Karousis ◽  
Georgios Charalambidis ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hybrid Materials ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Covalently Linked ◽  
Walled Carbon Nanotubes

Covalently-linked Adducts of Single-walled Nanotubes with Biomolecules: Synthesis, Hybridization, and Biologically-Directed Surface Assembly

2002 ◽  
Vol 761 ◽  
Author(s):  
Sarah E. Baker ◽  
Tami L. Lasseter ◽  
Lloyd M. Smith ◽  
Robert J. Hamers
Keyword(s):  
Carbon Nanotubes ◽  
Dna Sequences ◽  
Glass Surface ◽  
High Selectivity ◽  
Single Walled Carbon Nanotubes ◽  
Complementary Dna ◽  
Single Walled Carbon ◽  
Surface Assembly ◽  
Covalently Linked ◽  
Walled Carbon Nanotubes

ABSTRACTCovalently-linked adducts of single-walled carbon nanotubes (SWNTs) with biomolecules have been fabricated. Results are presented here for DNA-SWNT and for biotin-SWNT adducts. DNA-SWNT adducts are shown to be biochemically accessible and to exhibit high selectivity, favoring hybridization with complementary vs. non-complementary DNA sequences. Biotin-SWNT adducts were also prepared and used to direct the assembly of nanotubes onto a biotinylated glass surface.

3D, covalent and noncovalent hybrid materials based on 3-phenylcoumarin derivatives and single walled carbon nanotubes as gas sensing layers

2020 ◽  
Vol 504 ◽  
pp. 144276 ◽  
Author(s):  
Maxim S. Polyakov ◽  
Victoria N. Ivanova ◽  
Tamara V. Basova ◽  
Andrey A. Saraev ◽  
Baybars Köksoy ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hybrid Materials ◽  
Gas Sensing ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Single walled carbon nanotubes functionalized with nickel phthalocyanines: effects of point of substitution and nature of functionalization on the electro-oxidation of 4-chlorophenol

2012 ◽  
Vol 16 (01) ◽  
pp. 130-139 ◽  
Author(s):  
Samson Khene ◽  
Tebello Nyokong
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Current Response ◽  
Single Walled Carbon ◽  
Nickel Phthalocyanine ◽  
Phthalocyanine Complex ◽  
Electro Oxidation ◽  
Covalently Linked ◽  
Walled Carbon Nanotubes ◽  
Hydroxy Groups

In this work we report on electrochemical behavior of nickel phthalocyanine derivatives tetrasubstituted peripherally and non-peripherally with hydroxy and used to modify single walled carbon nanotubes. Nickel phthalocyanine complex octasubstituted at the peripheral positions with hydroxy groups was also used to modify single walled carbon nanotubes. Nickel phthalocyanine complex tetrasubstituted with amino groups at peripheral position was covalently and non-covalently linked to single walled carbon nanotubes. All the conjugates of nickel phthalocyanine derivatives with single walled carbon nanotubes were used for the electro oxidation of 4-chlorophenol. The nickel phthalocyanine octabsubstituted with hydroxy groups at the non-peripheral positions gave the best current response and the best resistance against electrode fouling for the oxidation of 4-chlorophenol.

scholarly journals The Long-Term Fate and Toxicity of PEG-Modified Single-Walled Carbon Nanotube Isoliquiritigenin Delivery Vehicles in Rats

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Bo Han ◽  
Mingming Zhang ◽  
Ting Tang ◽  
Qiusheng Zheng ◽  
Keyu Wang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Weight ◽  
Single Walled Carbon Nanotubes ◽  
Blood Clearance ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Tissue Sections ◽  
Covalently Linked ◽  
Walled Carbon Nanotubes

Oxidized single-walled carbon nanotubes (o-SWNTs) was modified by covalently and noncovalently linking PEG to the o-SWNTs. The influence of oxidation time, PEG molecular weight, and type of PEG linkage on the blood clearance time of PEG-modified single-walled carbon nanotubes (SWNTs) was investigated. The toxicity profile of SWNTs covalently linked to PEG (c-PEG-o-SWNTs) in rats has also been determined. The pharmacokinetics of c-PEG-o-SWNTs in rats and their distribution in vital organs were monitored by Raman spectroscopy, and the blood clearance of homogenate isoliquiritigenin (ISL) was determined by HPLC. Photos of tissue and tissue sections were taken to evaluate the toxicity of c-PEG-o-SWNTs. We found that SWNTs which were covalently modified with PEG and have a molecular weight of 3500 had the longest blood clearance half-lives. However, SWNTs were toxic to the kidneys and the hearts. The high renal clearance of long-term fate SWNTs may occur because of impaired kidney filtration function. Therefore, we assume that while researchers study the long-term fate of SWNTs, the toxicity of SWNTs also needs to be taken into account.

scholarly journals Hybrid Materials Based on Poly-3-amine-7-methylamine-2-methylphenazine and Magnetite Nanoparticles Immobilized on Single-Walled Carbon Nanotubes

Polymers ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 544 ◽  
Author(s):  
Sveta Zhiraslanovna Ozkan ◽  
Galina Petrovna Karpacheva ◽  
Petr Aleksandrovich Chernavskii ◽  
Ella Leont’evna Dzidziguri ◽  
Galina Nikolaevna Bondarenko ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hybrid Materials ◽  
Magnetite Nanoparticles ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

scholarly journals Hybrid Materials Based on l,d-Poly(lactic acid) and Single-Walled Carbon Nanotubes as Flexible Substrate for Organic Devices

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1271 ◽  
Author(s):  
Patryk Fryń ◽  
Krzysztof Bogdanowicz ◽  
Natalia Górska ◽  
Jakub Rysz ◽  
Piotr Krysiak ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Lactic Acid ◽  
Hybrid Materials ◽  
Thermal Imaging ◽  
Flexible Substrate ◽  
Single Walled Carbon Nanotubes ◽  
Poly Lactic Acid ◽  
Single Walled Carbon ◽  
Organic Devices ◽  
Walled Carbon Nanotubes

We report on the application of l,d-poly(lactic acid) (l,d-PLA) with dispersed Single-Walled Carbon Nanotubes (SWCN) as a flexible translucent electrode for organic devices. We used commercially available nanotubes in various weight ratios from 0 to 8% dispersed in chloroform polymeric solution by ultrasonication and were drop cast. The created hybrid materials were investigated by differential scanning calorimetry to determine the influence of SWCN content on the thermal behavior, while polarizing optical microscope was used to find the effect of mechanical deformations on the textures. Drop-cast films were studied by optical transmittance, conductivity, dielectric properties and by thermal imaging under applied potential. Thermal imaging provided evidence of visible voltage-activated conduction. Simple mechanical deformation such as bending with stretching at edge to ca. 90 and elongation test were performed. Moreover, interactions between l,d-poly(lactic acid) and SWCN were investigated by FT-IR and NMR spectroscopy. Finally, we can conclude that the thermographic examination of created films permits fast, simple and inexpensive localization of defects on the surface of l,d-PLA:SWCN film, together with the electrical properties of the films.

Assemblies of single-walled carbon nanotubes generated by covalent cross-linking with organic linkers

2015 ◽  
Vol 3 (13) ◽  
pp. 6747-6750 ◽  
Author(s):  
Ram Kumar ◽  
C. N. R. Rao
Keyword(s):  
Carbon Nanotubes ◽  
Gas Adsorption ◽  
Single Walled Carbon Nanotubes ◽  
Adsorption Properties ◽  
Cross Linking ◽  
Single Walled Carbon ◽  
Covalently Linked ◽  
Walled Carbon Nanotubes

Assemblies of covalently linked single-walled carbon nanotubes with superior gas adsorption properties have been prepared and characterized.

Linking Pd(ii) and Ru(ii) phthalocyanines to single-walled carbon nanotubes

2014 ◽  
Vol 43 (20) ◽  
pp. 7473-7479 ◽  
Author(s):  
Primiano d'Ambrosio ◽  
Manuela Carchesio ◽  
Nicola d'Alessandro ◽  
Gema de la Torre ◽  
Tomás Torres
Keyword(s):  
Carbon Nanotubes ◽  
Hybrid Materials ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

The preparation of novel, covalent Pd(ii)-SWCNT and Ru(ii)(bipyridyl)Pc-SWCNT hybrid materials by means of two-step synthetic procedures is described.

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