Growth of carbon nanotubes and nanowires from amorphous carbon films by plasma-enhanced hot filament chemical vapor deposition

Wang, B.B.; Tang, Xiaolong; Xu, Xiaofeng

doi:10.1016/j.jpcs.2012.11.007

Cited by 3 publications

(1 citation statement)

References 24 publications

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“…Some researchers have applied plasma-enhanced HFCVD (PEHFCVD) as a complementary technique [49]. Wang et al [50] fabricated CNTs from an amorphous carbon film without a metallic catalyst on a Si substrate using PEHFCVD. They generated CNTs with about 5 nm diameter and 300 – 800 nm length.…”

Section: Carbon Nanotubesmentioning

confidence: 99%

Carbon nanotubes part I: preparation of a novel and versatile drug-delivery vehicle

Karimi

Solati

Amiri

et al. 2015

Expert Opinion on Drug Delivery

101

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Introduction It is 23 years since carbon allotrope known as carbon nanotubes (CNT) was discovered by Iijima, who described them as “rolled graphite sheets inserted into each other”. Since then, CNTs have been studied in nanoelectronic devices. However, CNTs also possess the versatility to act as drug- and gene-delivery vehicles. Areas covered This review covers the synthesis, purification and functionalization of CNTs. Arc discharge, laser ablation and chemical vapor deposition are the principle synthesis methods. Non-covalent functionalization relies on attachment of biomolecules by coating the CNT with surfactants, synthetic polymers and biopolymers. Covalent functionalization often involves the initial introduction of carboxylic acids or amine groups, diazonium addition, 1,3-dipolar cycloaddition or reductive alkylation. The aim is to produce functional groups to attach the active cargo. Expert opinion In this review, the feasibility of CNT being used as a drug-delivery vehicle is explored. The molecular composition of CNT is extremely hydrophobic and highly aggregation-prone. Therefore, most of the efforts towards drug delivery has centered on chemical functionalization, which is usually divided in two categories; non-covalent and covalent. The biomedical applications of CNT are growing apace, and new drug-delivery technologies play a major role in these efforts.

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Section: Carbon Nanotubesmentioning

confidence: 99%