{"title":"Vibration Characteristics of Single-Walled Carbon Nanotubes Based on Nonlocal Elasticity Theory Using Wave Propagation Approach (WPA) Including Chirality","authors":"M. Hussain, M. Naeem","doi":"10.5772/intechopen.85948","DOIUrl":"https://doi.org/10.5772/intechopen.85948","url":null,"abstract":"This chapter deals with the vibrational properties of single-walled carbon nanotubes (SWCNTs), based on nonlocalized theory of elasticity (NLT). The nanotube pilot control with nonlinear parameters was derived from Euler’s beam theory. The wave propagation (WPA) approach was used to derive the frequency equation describing the natural frequencies of vibration in SWCNTs. Complex exponentials depend on the boundary conditions given at the edges of the carbon nanotubes used. Vibration frequency spectra were obtained and evaluated for different physical parameters such as diameter ratio for single chiral carbon nanotubes and flexural strength for chiral SWCNT. The results show that the natural frequencies are significantly reduced by increasing the nonlocal parameters, but by increasing the ratio of the diameter length (aspect ratio), the natural frequency increases. The frequency of SWCNTs is calculated with the help of MATLAB computer software. These results are compared to previously known numerical simulations.","PeriodicalId":150202,"journal":{"name":"Perspective of Carbon Nanotubes","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126729574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Electron Transport in the Assemblies of Multiwall Carbon Nanotubes","authors":"V. Samuilov, J. Galibert, N. Poklonski","doi":"10.5772/intechopen.89937","DOIUrl":"https://doi.org/10.5772/intechopen.89937","url":null,"abstract":"V.S. is very grateful to the Ministry of Education of France for the fellowship, the National Science Foundation of Switzerland, Award #7BYPJ065694 for support, the Laboratoire National des Champs Magnetiques Intenses de Toulouse, Dr. Jean Galibert and Prof. Laszlo Forro for hospitality. He would like to express his sincere gratitude to Dr. J. Quinn for the help with SEM imaging, Dr. M. Seo for the help with TEM, Dr. Y. Seo and Dr. J. Koo for the help with MWCNT oxidation, and Dr. V. Zaitsev for the help with the organic functionalization of MWCNT. Finally, V.S. acknowledges support of the Sensor CAT and the Research Foundation of SUNY. N.P. acknowledges support of the Belarusian Research Program “Convergence-2020” and the Belarusian Republican Foundation for Fundamental Research (Grant No. F18R-253).","PeriodicalId":150202,"journal":{"name":"Perspective of Carbon Nanotubes","volume":"06 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128927005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis of Carbon Nanotubes by Catalytic Chemical Vapor Deposition","authors":"Xiao-Di Wang, K. Vinodgopal, G. Dai","doi":"10.5772/INTECHOPEN.86995","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.86995","url":null,"abstract":"As a new carbon material in the twenty-first century, carbon nanotubes (CNTs) have excellent optical, electrical, magnetic, thermal, chemical, and mechanical properties. There are many synthesis methods to produce CNTs. Compared with other methods, chemical vapor deposition (CVD) is the most effective method that has broad prospects for large-scale control of CNTs in recent years due to its simple equipment, simple operation, and lower cost. In order to gain a comprehensive understanding of the controlling parameters about the formation of CNTs, this chapter reviews the latest progress in the preparation of CNTs by CVD from three of the most important influencing factors: carbon sources, catalysts, and substrates. Among them, the catalyst is the most influential factor for the morphology, structure, and properties of CNTs. It should be pointed out that many growth factors can control the particle size distribution, composition, and structure of the catalysts, such as catalyst substrate, metal transition components added, calcination temperature, etc.","PeriodicalId":150202,"journal":{"name":"Perspective of Carbon Nanotubes","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123864171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Quality Control and Risk Management of Carbon Nanomaterials","authors":"Khalid Parwez, S. Budihal","doi":"10.5772/intechopen.86005","DOIUrl":"https://doi.org/10.5772/intechopen.86005","url":null,"abstract":"Our atmosphere contains a substantial number of nanoparticles in which some are unintentionally produced, whereas others are intentionally produced engineered nanoparticle. Among all ENPs, the single-walled and multi-walled carbon nanotubes, spherical fullerenes, and dendrimers are attracting attention for biomedical applications, such as biosensor design, drug delivery, tumor therapy, and tissue engineering. Because of the inert nature of pristine carbon nanotubes (CNTs), it needs to be functionalized to make it reactive with other organic and inorganic materials. The functionalization leads to the addition of functional groups, e.g., C ‖ O, C ▬ O, ▬ OH, and ▬ COOH, to CNTs, which make them dispersible in solvents and suitable for numerous applications. Functionalized CNTs and their composite need to be tested for biocompatibility before real-time applications. Various toxicity mechanisms have been suggested for CNTs, including interference of transmembrane electron transfer, interruption/penetration of the cell envelope, oxidation of cell elements, and formu-lation of secondary products such as dissolved heavy metal ions or reactive oxygen species (ROS). Numerous studies have insinuated that well-functionalized CNTs are innoxious to animal cells, while raw CNTs or CNTs without functionalization mani-fest toxicity to cells at even modest dosage. Further of of","PeriodicalId":150202,"journal":{"name":"Perspective of Carbon Nanotubes","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132788551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cytotoxicity Evaluation of Carbon Nanotubes for Biomedical and Tissue Engineering Applications","authors":"Narsimha Mamidi","doi":"10.5772/intechopen.85899","DOIUrl":"https://doi.org/10.5772/intechopen.85899","url":null,"abstract":"Carbon nanotubes (CNTs) are one of the most studied allotropes of carbon nanomaterials. The exceptional chemical and physical properties of CNTs make them potential candidates for several applications such as electrical, gene therapy, biosensors, and drug delivery applications. However, the toxicity of CNTs has been a major concern for their use in tissue engineering and biomedical applications. In this chapter, we present an overview of carbon nanotubes in biomedical and tissue engineering applications. We discussed various factors including impurities, length, agglomeration, and size of CNTs that cause toxicity of CNTs. Further, other toxic methods are also examined, and possible ways to overcome these challenges have been discussed. nanotubes and defunctionalization derivatization reactions, (5) 1,3","PeriodicalId":150202,"journal":{"name":"Perspective of Carbon Nanotubes","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121839800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arti Dinkarrao Rushi, Kunal Prasanta Datta, Prasanta Sudarshan Ghosh, A. Mulchandani, Mahendra D. Shirsat
{"title":"Functionalized Carbon Nanotubes for Detection of Volatile Organic Pollutant","authors":"Arti Dinkarrao Rushi, Kunal Prasanta Datta, Prasanta Sudarshan Ghosh, A. Mulchandani, Mahendra D. Shirsat","doi":"10.5772/INTECHOPEN.85045","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.85045","url":null,"abstract":"Ever since carbon nanotubes were discovered, it has attracted researchers from all corners due to the fascinating characteristics they offer. Detection of environmental pollutants is one of the prominent sectors where carbon nanotubes have been extensively applied. Pristine carbon nanotubes attracted sincere attention at the initial phase; however, the inherent shortcomings as a chemical sensor were immediately recognized. Thereafter, improvement of selective and sensitive behavior of carbon nanotubes toward varied class of analytes has remained a core area of carbon nanotube-based research. Tailoring/covering sidewalls of carbon nanotubes with different functionalizing entities has shown remarkable outcomes in improving behavior of nanotube sensors in various domains. Organic conducting polymers, macrocyclic compounds, metal organic frameworks, metal nanoparticles, etc. have been extensively reported to functionalize carbon nanotube surface. This chapter discusses porphyrin-functionalized single-walled carbon nanotubes that are found to be selective toward volatile organic compounds, and most importantly, good selectivity and sensitivity have been observed for selected group of analytes.","PeriodicalId":150202,"journal":{"name":"Perspective of Carbon Nanotubes","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130469910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Behavior of X-Ray Analysis of Carbon Nanotubes","authors":"F. H. Abdulrazzak, Ayad Fadel Alkiam, F. Hussein","doi":"10.5772/INTECHOPEN.85156","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.85156","url":null,"abstract":"Carbon nanotubes with a variety of types occupied an amazing position compared to other nanomaterials due to rarer and specific physical and chemical properties. The behavior of graphite or graphite nanotubes theoretically and experimentally encourages their use in huge applications such as industries, fields of energy, and the environment. Many attempts are being made to get more of these benefits by a better understanding of the nature of carbon nanotubes. One of the ways to achieve this aim is by enhancing the acquaintance of characterization such as spectroscopy analysis and image microscopy. In this chapter, we are concerned with using X-ray as a source to produce clear imaginations for a tubular structure. Thus, the common ways that use X-ray as a source to interact with carbon nanotubes will be reviewed with details of characterization such as XRD, XRF, XPS, and EDX techniques.","PeriodicalId":150202,"journal":{"name":"Perspective of Carbon Nanotubes","volume":"278 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132555978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Srinivasan, Angulakshmi Sathyamoorthi Venkatasamy, M. Subramanian
{"title":"Carbon Nanotube from Unconventional Precursor-Optimization of Synthesis Parameters","authors":"K. Srinivasan, Angulakshmi Sathyamoorthi Venkatasamy, M. Subramanian","doi":"10.5772/INTECHOPEN.84860","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.84860","url":null,"abstract":"Carbon is a versatile element of distinctive properties and has been described as the key element of living substance. Carbon nanostructures have attracted lots of interest, due their prominent properties. Spray pyrolysis method is adopted for synthesis of carbon nanotubes (CNTs). Contrast to any petroleum product, there is no fear of its ultimate shortage as it is a renewable source and can be obtained easily by cultivating as much quantity as required. Synthesize well crystalline multiwalled carbon nanotubes (MWNTs) from unconventional precursor of methyl ester of Helianthus annuus oil by optimize the parameters such as reaction temperature, catalyst composition and feed rate of carbon precursor in order to obtain good yield with desirable morphology.","PeriodicalId":150202,"journal":{"name":"Perspective of Carbon Nanotubes","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121939892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Advantages and Limitations of CNT-Polymer Composites in Medicine and Dentistry","authors":"N. Turagam, D. Mudrakola","doi":"10.5772/INTECHOPEN.86183","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.86183","url":null,"abstract":"The past two decades have seen great technological advancements in the fields of optics, biochemistry, and physics allowing the fundamentals of our own human biology to be understood and controlled. At the forefront of this great understanding lies a tiny structure made of carbon called nanotube. Many studies have demonstrated that peptides, medicinal molecules, and nucleic acids, when bonded to carbon nanotubes, are delivered considerably more safely and effectively into cells than by traditional methods. Two types of carbon nanotubes have been researched for use in biomedical applications. The first is SWNT, single walled and second MWNT, multi-walled nanotube. Shell structures can be used for delivering anticancer drugs to tumors in various parts of the human body. In dentistry, the carbon nanotubes along with polymers prevent shrinkage and dimensional changes in resin and help in better fit at bone implant interface as well as in delivering well-fitting dentures. Evolution of gene therapy, cancer treatments, and innovative new answers for life-threatening diseases on the horizon, the science of nanomedicine has become an ever growing field that has an incredible ability to bypass barriers previously thought unavoidable.","PeriodicalId":150202,"journal":{"name":"Perspective of Carbon Nanotubes","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126552771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Introductory Chapter: Carbon Nanotubes","authors":"H. M. Saleh, M. Koller","doi":"10.5772/INTECHOPEN.85387","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.85387","url":null,"abstract":"As a family of rather new nanomaterials, carbon nanotubes (CNTs) are emerging since about two decades. However, their origin dates back almost 70 years ago, when they were observed and described in 1952 for the first time by Radushkevich and Lukyanovich; in 1976, Oberlin and colleagues described the microscopic observation of singleor double-walled carbon nanotubes. In 1991, Iijima demonstrated for the first time a process for preparation of multi-walled carbon nanotubes (MWNTs); this discovery occurred rather fortuitously during testing a new method for arc evaporation to fabricate C60 carbon molecules. Soon later, two seminal studies by the groups of Iijima and Bethune provided mechanistic descriptions of the growth process involved in the formation of single-walled carbon nanotubes [1]. Structurally, such single-walled carbon nanotubes (SWNT) can be conceived as one atom-thick sheets of graphite (“graphene”), which are rolled up (wrapped) to form tubes, as illustrated in Figure 1. Since their discovery in 1991, CNTs have experienced considerable investigative efforts, especially regarding potential smart applications. Those structures first reported in 1991 were MWNTs with a broad range of dimensions. These were basically distant relatives of highly defective carbon nanofibers grown via catalytic chemical vapor deposition. Real molecular nanotubes sensu stricto only came up when they were by chance detected while a catalyst (Fe and Co) material was inserted in the anode during electric-arc discharge synthesis. For the first time, it became possible to synthesize molecular fibers exclusively based on carbon; one can imagine that the excitement was tremendous, since many physical properties of such a fiber had already been theoretically predicted [6].","PeriodicalId":150202,"journal":{"name":"Perspective of Carbon Nanotubes","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116425734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}