Journal ArticleDOI
Electrowetting of aligned carbon nanotube films.
TLDR
The results demonstrate that electrowetting can greatly reduce the hydrophobicity of the aligned CNTs and may be invoked to controllably reduce the interfacial tension between carbon nanotubes (CNTs) and polymer precursors when infiltrating the monomers into the prealigned nanotube films.Abstract:
Electrowetting is one approach to reducing the interfacial tension between a solid and a liquid. In this method, an electrical potential is applied across the solid/liquid interface which modifies the wetting properties of the liquid on the solid without changing the composition of the solid and liquid phases. Electrowetting of aligned carbon nanotube (CNT) films is investigated by the sessile drop method by dispensing deionized (DI) water or 0.03 M NaCl droplets (contacted by Au wire) onto aligned CNT films assembled on a copper substrate. The results demonstrate that electrowetting can greatly reduce the hydrophobicity of the aligned CNTs; the contact angle saturation for DI water and 0.03 M NaCl droplets occurs at 98 and 50°, respectively. The combined effects of the geometrical roughness and the electrical potential on the contact angle are briefly discussed and modeled. Such a strategy may be invoked to controllably reduce the interfacial tension between carbon nanotubes (CNTs) and polymer precursors...read more
Citations
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Journal ArticleDOI
Reversibly switchable wettability
Bingwei Xin,Jingcheng Hao +1 more
TL;DR: This critical review outlines the current state-of-the-art research on the reversibly switchable wettability of surface brought about by external stimuli and the exchange of counterions and briefly introduces ionic liquids (ILs) as on-off systems to obtain reversiblySwitchableWettability.
Journal ArticleDOI
Carbon nanotubes as functional excipients for nanomedicines: II. Drug delivery and biocompatibility issues
TL;DR: Some toxicological and biocompatibility issues related to the use of CNTs as pharmaceutical excipients are examined and attributes that affect toxicity are discussed, such as structure, length and aspect ratio, surface area, degree of aggregation, extent of oxidation, surface topology, bound functional group(s), and method of manufacturing.
Journal ArticleDOI
Photo-induced water–oil separation based on switchable superhydrophobicity–superhydrophilicity and underwater superoleophobicity of the aligned ZnO nanorod array-coated mesh films
TL;DR: Wang et al. as discussed by the authors reported photo-induced water-oil separation based on the switchable superhydrophobicity and underwater superoleophobicity of aligned ZnO nanorod array-coated mesh films.
Journal ArticleDOI
Patterning of controllable surface wettability for printing techniques
TL;DR: This review summarizes the recent research on and applications of patterning of controllable surface wettability for printing techniques, with a focus on the design and fabrication of the precise surfaceWettability patterning by enhancing the contrast of hydrophilicity and hydrophobicity, such as superhydrophilic and superhydrophic patterning.
Journal ArticleDOI
Superhydrophobic Surfaces: Insights from Theory and Experiment.
TL;DR: This review revisits various classical models of superhydrophobicity and recent theoretical advances achieved related to the wetting phenomena, and focuses on various precursors and advance fabrication strategies adopted to fabricate superHydrophobic surfaces.
References
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Journal ArticleDOI
Carbon Nanotubes--the Route Toward Applications
TL;DR: Many potential applications have been proposed for carbon nanotubes, including conductive and high-strength composites; energy storage and energy conversion devices; sensors; field emission displays and radiation sources; hydrogen storage media; and nanometer-sized semiconductor devices, probes, and interconnects.
Journal ArticleDOI
Chemistry of Carbon Nanotubes
TL;DR: Department of Materials Science, University of Patras, Greece, Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, and Dipartimento di Scienze Farmaceutiche, Universita di Trieste, Piazzale Europa 1, 34127 Triesteadays.
Journal ArticleDOI
Carbon Nanotubes: Synthesis, Integration, and Properties
TL;DR: In this paper, the van der Waals self-assembly forces and applied electric fields are used to control the growth direction of carbon nanotubes in a patterned growth approach.