Carbon nanotubes: Functionalization and biological applications

2020 ◽  
Vol 12 (sp2) ◽  
Keyword(s):  
Carbon Nanotubes ◽  
Biological Applications

scholarly journals Development of an accurate method for dispersion and quantification of carbon nanotubes in biological media

2020 ◽  
Vol 12 (46) ◽  
pp. 5642-5647
Author(s):  
Lorena González-Legarreta ◽  
Carlos Renero-Lecuna ◽  
Rafael Valiente ◽  
Mónica L. Fanarraga
Keyword(s):  
Carbon Nanotubes ◽  
Accurate Method ◽  
Biological Applications ◽  
Biological Media

A complete method to disperse, functionalize and accurately quantify carbon nanotubes for biological applications in nanomedicine is developed and described.

scholarly journals Probing astroglia with carbon nanotubes: modulation of form and function

2014 ◽  
Vol 369 (1654) ◽  
pp. 20130598 ◽  
Author(s):  
Manoj K. Gottipati ◽  
Alexei Verkhratsky ◽  
Vladimir Parpura
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Modification ◽  
Functional Properties ◽  
Neural Prostheses ◽  
Biological Applications ◽  
Form And Function ◽  
And Function ◽  
The Brain ◽  
Potential Use ◽  
Insight Into

Carbon nanotubes (CNTs) have shown much promise in neurobiology and biomedicine. Their structural stability and ease of chemical modification make them compatible for biological applications. In this review, we discuss the effects that chemically functionalized CNTs, applied as colloidal solutes or used as strata, have on the morpho-functional properties of astrocytes, the most abundant cells present in the brain, with an insight into the potential use of CNTs in neural prostheses.

scholarly journals Protein Adsorption on Hybrids of Thermoresponsive Polymers and Single-Walled Carbon Nanotubes

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Kazuo Umemura ◽  
Katsuki Izumi ◽  
Yoshikazu Kumashiro ◽  
Shusuke Oura ◽  
Teruo Okano
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Dna Binding Protein ◽  
Biological Applications ◽  
Dna Molecules ◽  
Thermoresponsive Polymers ◽  
Single Walled Carbon ◽  
Fundamental Information ◽  
Significant Difference ◽  
Walled Carbon Nanotubes

Poly(N-isopropylacrylamide) (PNIPAAm) is one of the most popular thermoresponsive polymers. Adsorption of RecA proteins onto hybrids of PNIPAAm and single-walled carbon nanotubes (SWNTs) was observed in the presence and absence of DNA molecules. Although RecA molecules were adsorbed efficiently onto the hybrid surfaces at 37°C, even in the absence of DNA molecules, the adsorption of RecA was inhibited at 4°C. These results suggest that the thermoresponsive functions of PNIPAAm were effective, even on the SWNT surfaces, which supports the possibility of developing nanobiodevices using PNIPAAm-SWNT hybrids. However, although RecA is a DNA binding protein, there was no significant difference in the adsorption of RecA onto PNIPAAm-SWNT surfaces with and without DNA molecules. This study provides fundamental information for potential biological applications of PNIPAAm-SWNT hybrids.

Dispersion of Multi‐walled Carbon Nanotubes in Aqueous Pluronic F127 Solutions for Biological Applications

2008 ◽  
Vol 17 (1) ◽  
pp. 11-25 ◽  
Author(s):  
Gianni Ciofani ◽  
Vittoria Raffa ◽  
Virginia Pensabene ◽  
Arianna Menciassi ◽  
Paolo Dario
Keyword(s):  
Carbon Nanotubes ◽  
Pluronic F127 ◽  
Biological Applications ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

ZnO/Ag NANOPARTICLE-DECORATED SINGLE-WALLED CARBON NANOTUBES (SWCNTs) AND THEIR PROPERTIES

2019 ◽  
Vol 27 (03) ◽  
pp. 1950123 ◽  
Author(s):  
MOHAMMAD R. MOHAMMAD ◽  
DUHA S. AHMED ◽  
MUSTAFA K. A. MOHAMMED
Keyword(s):  
Carbon Nanotubes ◽  
Colloidal Stability ◽  
Single Walled Carbon Nanotubes ◽  
Chemical Precipitation ◽  
Biological Applications ◽  
Ag Nanoparticle ◽  
X Ray Diffraction ◽  
X Ray ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Raw single-walled carbon nanotubes (SWCNTs) were oxidized by using sulfuric acid and nitric acid at 3:1 ratio to produce oxygen functional groups attached to SWCNTs surfaces. Then, the oxidized SWCNTs are coated with zinc oxide and silver nanoparticles by chemical precipitation route to synthesize ZnO/Ag-SWCNTs nanocomposite material. The nanocomposite sample was analyzed via zeta potential analyzer, ultraviolet-visible (UV-Vis) spectrophotometer, field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and Raman spectroscopy to investigate colloidal stability, optical, morphological, and structural properties. The SWCNT properties were found to be changed after the addition of ZnO/Ag nanoparticles. Hence, the new ZnO/Ag-SWCNTs nanocomposite is a good candidate for photocatalyst applications and biological applications.

Fabrication of Novel Hollow Micro Needles for Biological Applications

2011 ◽  
Vol 1346 ◽  
Author(s):  
Z. Sanaee ◽  
S. Mehrvarz ◽  
M. Mehran ◽  
M. Abdolahad ◽  
M. Sohrabi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Drug Delivery ◽  
Reactive Ion Etching ◽  
Three Dimensional ◽  
Silicon Substrates ◽  
Biological Applications ◽  
Ion Etching ◽  
Liquid Transport ◽  
Deep Reactive Ion Etching ◽  
Cylindrical Structure

ABSTRACTMicroneedles have applications in drug delivery and biotechnology. We report a novel needle-like hollow cylindrical structure as a base for the growth of carbon nanotubes (CNT) to form a cage-like structure. The formation of hollow microneedle structures is feasible on Si-membranes using proper patterning of the masking layer and combined by a deep reactive ion etching. The formation of highly featured structures at micro and nanometric scale is reported. By controlling the etching parameter one is able to achieve three-dimensional as well as highly vertical structures on silicon substrates. The growth of carbon nanotubes on such structures allows the realization of cage-like carbon-based features which could be suitable for gas and liquid transport.

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