Gupta, Vinay and Kotnala, Ravinder Kumar Multifunctional Ferromagnetic Carbon-Nanotube Arrays Prepared by Pulse-Injection Chemical Vapor Deposition. Angewandte Chemie International Edition, 51 (12). pp. 2916-2919. ISSN 1433-7851

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Abstract

Multiwalled carbon nanotubes (MWCNTs) have received enormous attention during the past decade owing to their potential in the miniaturization of electronic1 and mechanical2 devices such as field‐effect transistors (FET),3 logic circuits,4 field‐emission displays,5 energy storage systems,6, 7 optoelectronic switch and memory devices.8 Although the idea of using MWCNTs in microelectromechanical systems (MEMS) is proposed,9 building highly magnetic MWCNTs architectures remained a challenge in spite of their various applications in micro/nano magnetomechanical systems (MMMS/NMMS), high‐flux magnetic separations, and controlled drug delivery.10 MWCNTs can be doped with magnetic nanoparticles by chemical vapor deposition (CVD), either on various substrates, such as metals, quartz, and silicon,6, 7 or by template growth inside porous alumina.11, 12 Herein, for the first time, by pulse‐injection CVD process, using ferrocene in toluene, we have grown a highly ferromagnetic three‐dimensional freestanding pillar architecture of MWCNTs encapsulating iron compounds. The magnetic manipulations of mechanical motions of MWCNTs are shown and their biological compatibility, higher delivery efficiency, a prolonged release of cancer drug doxorubicin (Dox), and good targeting capabilities of Dox onto HeLa cells is demonstrated.

Item Type:	Article
Additional Information:	copyright for this article belongs to M/s Wiley
Subjects:	Chemistry
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	19 Aug 2026 11:08
Last Modified:	19 Aug 2026 11:08
URI:	https://npl.csircentral.net/id/eprint/3487

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