Recent Progress on the Synthesis and Applications of Carbon Based Nanostructures

Abstract

This article reviews the latest developments in the synthesis of Graphene, Carbon nanotubes and graphene/CNT based devices based on patents, patent applications and articles published in the last two years. A brief introduction about CNT and Graphene is presented, followed by the latest techniques and advanced processing for the large scale synthesis of Graphene and CNTs. Furthermore, a brief account of emerging devices based on applications of CNTs and graphene not limited to sensors, high speed electronics, energy harvesting and storage applications are presented.

CHEMICAL ANALYSIS OF NEW RECORDED SPECIES Acalypha australis L. AT IRAQ

“…Moreover kaempferol has antioxidant and anticancer roles represent as preserving viability of normal cell and preventing the growth of cancer cell as reported in Chen & Chen study (6). Trihydroxyanthraquinones Phytosteroles screening for Acalypha australis extract showed the presence of β-sitosterol and daucosterol (Fig: 8,9) which are reported for the species previously by (8,40), and for other species of Acalypha by others (5,17), βsitosterol consider as an important bioactive compound has a role in anti-inflammatory, ant-cancer, anti-oxidant activities and improvement of immunological and nervous systems (30), while both of sitosterol and daucosterol have a distinctive effect in lung cancer in human as recorded (29). Other phytochemical compound detected from Acalypha australis extract is loliolide which belong to terpenoids compound (Fig: 10) with biological important as anti-cancer, antibacterial, anti-fungle, and antioxidant (14), as well as some organic acids as butanedioic acid (Fig12) with an importance's as antimicrobial active compounds (18) and niacin (Fig 11) which is reported to improved cardiovascular health (36) So, chemical study can significantly contributed to taxonomy study.…”

Enhanced vacuum sensing performance of multiwalled carbon nanotubes: role of defects and carboxyl functionalization

“…1,2 CNTs have created a great impact on their potential applications such as eld emission displays, sensory arrays, electronics, energy storage devices and biological applications. [3][4][5] For large scale utilization of CNTs, the ability to produce mass product with high structural quality at low cost with consistent reproducibility is required. So far, many approaches such as electric arc discharge, laser ablation, hot lament chemical vapour deposition (CVD) and plasma-enhanced CVD are used for controlling the production of SWCNTs, MWCNTs and doped CNTs.…”

Green synthesis of reduced graphene oxide by a GRAS strain Bacillus subtilis 168 with high biocompatibility to zebrafish embryos

“…Differing from other applications, low toxicity and high biocompatibility are essential characteristics for biomedical applications, especially in vivo. 17 As the most promising method for large scale production of graphene, the process of chemical synthesizing graphene rst oxidized the graphite to graphene oxide (GO) [18][19][20] and then reduced the GO to graphene, using strong chemical reducing agents in organic solvents, 2,21 such as hydrazine and sodium borohydride. Unfortunately, these strong chemical reducing agents and solvents usually are highly corrosive and toxic.…”