Cited Article: Hummer, G. Water conduction through the hydrophobic channel of a carbon nanotube
Alert Expires: 22 OCT 2009
Number of Citing Articles: 2 new records this week (2 in this e-mail)
Organization ID: 3b97d1bbc1878baed0ab183d8b03130b
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Title:
Molecular-dynamics studies of competitive replacement in peptide-nanotube assembly for control of drug release
Authors:
Cheng, Y; Pei, QX; Gao, HJ
Author Full Names:
Cheng, Yuan; Pei, Qing Xiang; Gao, Huajian
Source:
NANOTECHNOLOGY 20 (14): Art. No. 145101 APR 8 2009
Language:
English
Document Type:
Article
KeyWords Plus:
WALLED CARBON NANOTUBES; WATER; PROTEINS; DNA; CONDUCTION; INSERTION
Abstract:
We report molecular-dynamics simulation of carbon-nanotube-based drug delivery and release systems. We show that a peptide encapsulated inside or attached to the outer surface of a carbon nanotube can be released by another nanotube through a competitive replacement process. Energy analysis reveals that the van der Waals interaction plays the key role in this process, and the potential well between two nanotubes drives the competitive replacement. We further show that competitive replacement is a basic principle which may be generally explored for drug release. For example, one type of peptide can be used to replace/release another type of peptide, depending on the difference in their affinity for the nanotube. The effects of the peptide sequence and the nanotube size on the drug release process are also studied in this paper.
Reprint Address:
Gao, HJ, Brown Univ, Div Engn, Providence, RI 02912 USA.
Research Institution addresses:
[Gao, Huajian] Brown Univ, Div Engn, Providence, RI 02912 USA; [Cheng, Yuan; Pei, Qing Xiang] Inst High Performance Comp, Singapore 138632, Singapore
E-mail Address:
Huajian_Gao@brown.edu
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Cited Reference Count:
29
Times Cited:
0
Publisher:
IOP PUBLISHING LTD; DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Subject Category:
Engineering, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied
ISSN:
0957-4484
DOI:
10.1088/0957-4484/20/14/145101
IDS Number:
424BC
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Title:
In Situ Assembly of Multi-Sheeted Buckybooks from Single-Walled Carbon Nanotubes
Authors:
Liu, QF; Ren, WC; Wang, DW; Chen, ZG; Pei, SF; Liu, BL; Li, F; Cong, HT; Liu, C; Cheng, HM
Author Full Names:
Liu, Qingfeng; Ren, Wencai; Wang, Da-Wei; Chen, Zhi-Gang; Pei, Songfeng; Liu, Bilu; Li, Feng; Cong, Hongtao; Liu, Chang; Cheng, Hui-Ming
Source:
ACS NANO 3 (3): 707-713 MAR 2009
Language:
English
Document Type:
Article
Author Keywords:
carbon nanotubes; assembly; macrostructure; floating catalyst; filtration
KeyWords Plus:
LARGE-SCALE; FILMS; TRANSPARENT; MEMBRANES; NETWORKS; PYROLYSIS; TRANSPORT; REMOVAL; FIBERS
Abstract:
We report a simple approach for the direct and nondestructive assembly of multi-sheeted single-walled carbon nanotube book-like macrostructures (buckybooks) with good control of the nanotube diameter, the sheet packing density, and the book thickness during the floating catalytic growth process. The promise of such buckybooks is highlighted by demonstrating their high capacitance and high-efficiency molecular separation by directly using them as a binder-free electrode and as a filter, respectively. Our approach also provides a flexible and reliable way to easily assemble various other types of nanotubes into book-like or even more sophisticated sandwich-like hybrid macrostructures, realizing the shape-engineering of one-dimensional nanostructures to macroscopic well-defined architectures for various applications.
Reprint Address:
Cheng, HM, Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.
Research Institution addresses:
[Liu, Qingfeng; Ren, Wencai; Wang, Da-Wei; Chen, Zhi-Gang; Pei, Songfeng; Liu, Bilu; Li, Feng; Cong, Hongtao; Liu, Chang; Cheng, Hui-Ming] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
E-mail Address:
cheng@imr.ac.cn
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Cited Reference Count:
43
Times Cited:
0
Publisher:
AMER CHEMICAL SOC; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Subject Category:
Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
ISSN:
1936-0851
DOI:
10.1021/nn800852n
IDS Number:
423ZL
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