By Xu Hou
In this thesis, the writer introduces a number of bio-inspired shrewdpermanent nanochannel platforms. a method for layout and coaching of novel synthetic responsive symmetric/asymmetric unmarried nanochannel platforms lower than numerous symmetric/asymmetric stimuli is gifted for the 1st time. The author’s examine paintings makes use of ion music etching polymer nanochannels with diversified shapes as examples to illustrate the feasibility of the layout process for construction novel man made useful nanochannels utilizing a variety of symmetric/asymmetric physicochemical changes. the advance of those nanochannels and their capability purposes is a burgeoning new quarter of analysis, and a couple of fascinating breakthroughs might be expected within the close to destiny from the ideas and effects pronounced during this thesis. study into man made practical nanochannels keeps to force new advancements of assorted real-world functions, akin to biosensors, strength conversion platforms and nanofluidic units. The paintings during this thesis has ended in greater than 15 guides in high-profile journals.
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Additional info for Bio-inspired Asymmetric Design and Building of Biomimetic Smart Single Nanochannels
Asymmetric Chemical Modification by Functional Molecules in Solution Asymmetric chemical modification by functional molecules in solution is based on the minimum concentration requirements of the chemical modification reaction, and the different reagent concentration distribution inside the symmetric/asymmetric confined space of the nanochannels. 2 Design Philosophy of Biomimetic Smart Nanopores/Nanochannels 17 Fig. 14 a A biomimetic asymmetric pH/Temperature responsive single nanochannel produced by asymmetric plasma modification.
Copyright 2008 American Chemical Society. d I–V curves of the amphoteric (lysine) nanochannel at pH 2 (left), pH 5 (center), and pH 11 (right). Reprinted with the permission from Ref. . Copyright 2009 American Chemical Society partially decreases the effective diameter of the nanochannel (Fig. 20c, down). In high-pH solution, the motor DNA relaxes to a loosely packed single-stranded and more negatively charged structure that enhances the total ion conductivity inside the nanochannel (Fig. 20c, up).
The second one is to prepare various symmetric and asymmetric shaped nanopores/nanochannels for different chemical modification approaches to functionalize diverse specific local areas precisely with different functional molecules. Some examples are mentioned in the following sections. 1 pH and Temperature Dual Responsive Single Nanopore/Nanochannel According to above first strategy, Ulbricht et al. developed symmetric multiple nanochannels responding to pH and temperature stimuli via modifying dual responsive copolymer brushes [134, 135].