CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
A charge-driven molecular water pump
Alternative Titlemannual of IR
Gong, XJ(巩晓晶); Li, JY; Lu, HJ(陆杭军); Wan, RZ; Li, JC; Hu, J(胡钧); Fang, HP(方海平); Fang, HP (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China
AbstractUnderstanding and controlling the transport of water across nanochannels is of great importance for designing novel molecular devices, machines and sensors and has wide applications(1-9), including the desalination of seawater(5). Nanopumps driven by electric or magnetic fields can transport ions(10,11) and magnetic quanta(12), but water is charge- neutral and has no magnetic moment. On the basis of molecular dynamics simulations, we propose a design for a molecular water pump. The design uses a combination of charges positioned adjacent to a nanopore and is inspired by the structure of channels in the cellular membrane that conduct water in and out of the cell (aquaporins). The remarkable pumping ability is attributed to the charge dipole- induced ordering of water confined in the nanochannels(13,14), where water can be easily driven by external fields in a concerted fashion. These findings may provide possibilities for developing water transport devices that function without osmotic pressure or a hydrostatic pressure gradient.
Subject AreaPhysics
Indexed BySCI
Funding Project应物所项目组
WOS IDWOS:000251265500015
Citation statistics
Document Type期刊论文
Corresponding AuthorFang, HP (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Gong, XJ,Li, JY,Lu, HJ,et al. A charge-driven molecular water pump[J]. NATURE NANOTECHNOLOGY,2007,2(11):709.
APA Gong, XJ.,Li, JY.,Lu, HJ.,Wan, RZ.,Li, JC.,...&Fang, HP .(2007).A charge-driven molecular water pump.NATURE NANOTECHNOLOGY,2(11),709.
MLA Gong, XJ,et al."A charge-driven molecular water pump".NATURE NANOTECHNOLOGY 2.11(2007):709.
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