scholarly journals Synthesis of octagon-containing molecular nanocarbons

2022 ◽  
Author(s):  
Kenichiro Itami ◽  
Greco González Miera ◽  
Satoshi Matsubara ◽  
Hideya Kono ◽  
Kei Murakami
Keyword(s):  
Carbon Nanotubes ◽  
Scientific Community ◽  
Synthetic Reactions

Nanocarbons, such as fullerenes, carbon nanotubes, and graphenes, have long inspired the scientific community. In order to synthesize nanocarbon molecules in an atomically precise fashion, many synthetic reactions have been...

scholarly journals Carbon Nanotubes Properties and Applications

2018 ◽  
Vol 1 (1) ◽  
Keyword(s):  
Carbon Nanotubes ◽  
Composite Materials ◽  
Scientific Community ◽  
Nano Composite ◽  
The World

Nanotubes have never ceased to make object of research around the world. The scientific community has high hopes on these nanomaterials seen their exceptional properties and their various applications. They are so successful is because they have properties unsurpassed in many areas. They have excellent properties which can be used in many applications extending from macroscopic to nano composite materials. Here we present an overview of the different properties of these nanomaterials and their applications.

scholarly journals Carbon-Based Polymer Nanocomposites for High-Performance Applications

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 872 ◽  
Author(s):  
Ana Maria Díez-Pascual
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Polymer Nanocomposites ◽  
Scientific Community ◽  
High Performance ◽  
Large Specific Surface Area ◽  
Carbon Allotropes ◽  
Carbon Based Nanomaterials ◽  
Carbon Based

Carbon-based nanomaterials such as carbon nanotubes, graphene and its derivatives, nanodiamond, fullerenes, and other nanosized carbon allotropes have recently attracted a lot of attention among the scientific community due to their enormous potential for a wide number of applications arising from their large specific surface area, high electrical and thermal conductivity, and good mechanical properties [...]

scholarly journals Applications and Nanotoxicity of Carbon Nanotubes and Graphene in Biomedicine

2012 ◽  
Vol 2012 ◽  
pp. 1-19 ◽  
Author(s):  
Caitlin Fisher ◽  
Amanda E. Rider ◽  
Zhao Jun Han ◽  
Shailesh Kumar ◽  
Igor Levchenko ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanostructures ◽  
Biomedical Applications ◽  
Scientific Community ◽  
Research Progress ◽  
Great Promise ◽  
Carbon Structures ◽  
Safety And Toxicity ◽  
Therapeutic Tools ◽  
Biomedical Fields

Owing to their unique mechanical, electrical, optical, and thermal properties, carbon nanostructures including carbon nanotubes and graphenes show great promise for advancing the fields of biology and medicine. Many reports have demonstrated the promise of these carbon nanostructures and their hybrid structures (composites with polymers, ceramics, and metal nanoparticles, etc.) for a variety of biomedical areas ranging from biosensing, drug delivery, and diagnostics, to cancer treatment, tissue engineering, and bioterrorism prevention. However, the issue of the safety and toxicity of these carbon nanostructures, which is vital to their use as diagnostic and therapeutic tools in biomedical fields, has not been completely resolved. This paper aims to provide a summary of the features of carbon nanotube and graphene-based materials and current research progress in biomedical applications. We also highlight the current opinions within the scientific community on the toxicity and safety of these carbon structures.

Principles of Raman Scattering in Carbon Nanotubes

2014 ◽  
pp. 131-145
Author(s):  
K. A. Shah ◽  
M. A. Shah
Keyword(s):  
Carbon Nanotubes ◽  
Raman Scattering ◽  
Scientific Community ◽  
Single Walled Carbon Nanotubes ◽  
Raman Spectroscopic ◽  
Single Walled Carbon ◽  
Modes Of Vibration ◽  
Raman Modes ◽  
Walled Carbon Nanotubes ◽  
Structure Of Carbon Nanotubes

Carbon nanotubes have attracted the scientific community throughout the world, and in the past decade, a lot of work has been reported related with synthesis, characterization, and applications of carbon nanotubes. This chapter is written for readers who are not familiar with the basic principles of Raman spectroscopy in carbon nanotubes. The structure of carbon nanotubes, types of the carbon nanotubes, Brillouin zone of carbon nanotubes, and band structure of carbon nanotubes are discussed at length, which will serve as foundation for the study of Raman scattering in carbon nanotubes. The Density of States (DOS) of single walled carbon nanotubes are illustrated by an example which will encourage readers to calculate the DOS of any type of carbon nanotube. The Raman modes of vibration are discussed, and Raman spectroscopic analysis is presented by considering the typical spectra of single-walled carbon nanotubes.

scholarly journals Carbon Nanotubes (CNTs): A Potential Nanomaterial for Water Purification

2020 ◽  
Vol 4 (3) ◽  
pp. 135
Author(s):  
Bharti Arora ◽  
Pankaj Attri
Keyword(s):  
Carbon Nanotubes ◽  
Reverse Osmosis ◽  
Organic Compounds ◽  
Water Purification ◽  
Scientific Community ◽  
High Flow ◽  
Water Crisis ◽  
The Future ◽  
Uf Membranes

Nanomaterials such as carbon nanotubes (CNTs) have been used as an excellent material for catalysis, separation, adsorption and disinfection processes. CNTs have grabbed the attention of the scientific community and they have the potential to adsorb most of the organic compounds from water. Unlike, reverse osmosis (RO), nanofiltration (NF) and ultrafiltration (UF) membranes aligned CNT membranes can act as high-flow desalination membranes. CNTs provide a relatively safer electrode solution for biosensors. The article is of the utmost importance for the scientists and technologists working in water purification technologies to eliminate the water crisis in the future. This review summarizes about the application of CNTs in water purification.

Structural phenomena in the growth of carbon nanotubes

1993 ◽  
Vol 51 ◽  
pp. 750-751
Author(s):  
Jun Jiao
Keyword(s):  
Carbon Nanotubes ◽  
Growth Mechanism ◽  
Carbonaceous Material ◽  
Cluster Growth ◽  
Structural Elements ◽  
Rich Variety ◽  
Different Shapes ◽  
Point To Point

HREM studies of the carbonaceous material deposited on the cathode of a Huffman-Krätschmer arc reactor have shown a rich variety of multiple-walled nano-clusters of different shapes and forms. The preparation of the samples, as well as the variety of cluster shapes, including triangular, rhombohedral and pentagonal projections, are described elsewhere.The close registry imposed on the nanotubes, focuses attention on the cluster growth mechanism. The strict parallelism in the graphitic separation of the tube walls is maintained through changes of form and size, often leading to 180° turns, and accommodating neighboring clusters and defects. Iijima et. al. have proposed a growth scheme in terms of pentagonal and heptagonal defects and their combinations in a hexagonal graphitic matrix, the first bending the surface inward, and the second outward. We report here HREM observations that support Iijima’s suggestions, and add some new features that refine the interpretation of the growth mechanism. The structural elements of our observations are briefly summarized in the following four micrographs, taken in a Hitachi H-8100 TEM operating at an accelerating voltage of 200 kV and with a point-to-point resolution of 0.20 nm.

Bringing Psychoanalysis Into the Scientific Community

1983 ◽  
Vol 28 (4) ◽  
pp. 285-285
Author(s):  
Seymour Fisher
Keyword(s):  
Scientific Community
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