2018
DOI: 10.1002/anie.201803222
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Smart DNA Hydrogel Integrated Nanochannels with High Ion Flux and Adjustable Selective Ionic Transport

Abstract: Nanochannels based on smart DNA hydrogels as stimulus-responsive architecture are presented for the first time. In contrast to other responsive molecules existing in the nanochannel in monolayer configurations, the DNA hydrogels are three-dimensional networks with space negative charges, the ion flux and rectification ratio are significantly enhanced. Upon cyclic treatment with K ions and crown ether, the DNA hydrogel states could be reversibly switched between less stiff and stiff networks, providing the gati… Show more

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Cited by 106 publications
(83 citation statements)
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“…Wu et al constructed the 3D smart DNA hydrogels integrated in the tip side of conical and cigar‐sharp nanochannels. In the asymmetric nanochannels, the 3D DNA hydrogels brought several advantages: high rectification ratio, high ion fluxes, and controllable ionic transport direction . In one word, the signal amplification with DNA superstructures in nanochannels/nanopores relies on the programmable base pairing, which is the characteristic of DNA or the analogs.…”
Section: Featuresmentioning
confidence: 99%
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“…Wu et al constructed the 3D smart DNA hydrogels integrated in the tip side of conical and cigar‐sharp nanochannels. In the asymmetric nanochannels, the 3D DNA hydrogels brought several advantages: high rectification ratio, high ion fluxes, and controllable ionic transport direction . In one word, the signal amplification with DNA superstructures in nanochannels/nanopores relies on the programmable base pairing, which is the characteristic of DNA or the analogs.…”
Section: Featuresmentioning
confidence: 99%
“…Thereby, it is facile to immobilize the biomolecules with sulfur‐containing groups onto the nanochannels/nanopores surface and inner wall covered by Au plating. Generally, the Au plating is deposited by sputtering or electrochemical method . As shown in Figure a,b, the Au plating was depositing on the inner wall of the conical PET nanochannels and the AAO nanochannels.…”
Section: Functionalization Techniques Of Solid‐state Ion Nanochannelsmentioning
confidence: 99%
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