Artificial, switchable K+-gated ion channels based on flow-through titania-nanotube arraysElectronic supplementary information (ESI) available: Additional experimental data. See DOI: 10.1039/b925961a
In the present work, we demonstrated a novel type of artificial K + -gated ion channels based on titania nanotubes loaded with Au nanoparticles and G-rich DNA composite structure. K + promoted conformational change of G-rich DNA from flexible chain to rigid quadruplex, which provided a blocking effe...
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Format | Journal Article |
Language | English |
Published |
17.08.2010
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Abstract | In the present work, we demonstrated a novel type of artificial K
+
-gated ion channels based on titania nanotubes loaded with Au nanoparticles and G-rich DNA composite structure. K
+
promoted conformational change of G-rich DNA from flexible chain to rigid quadruplex, which provided a blocking effect for the transport of anions such as Fe(CN)
6
4−
and other molecules through the channels in TiO
2
nanotubes. This fabricated permselective membrane using K
+
as a trigger may set light to the field of biosensing, drug-release, ion exchange membrane and so on.
K
+
-gated ion channels based on G-rich DNA modified titania nanotube-Au nanoparticle films were demonstrated, which had both controllability and selective permeability. |
---|---|
AbstractList | In the present work, we demonstrated a novel type of artificial K
+
-gated ion channels based on titania nanotubes loaded with Au nanoparticles and G-rich DNA composite structure. K
+
promoted conformational change of G-rich DNA from flexible chain to rigid quadruplex, which provided a blocking effect for the transport of anions such as Fe(CN)
6
4−
and other molecules through the channels in TiO
2
nanotubes. This fabricated permselective membrane using K
+
as a trigger may set light to the field of biosensing, drug-release, ion exchange membrane and so on.
K
+
-gated ion channels based on G-rich DNA modified titania nanotube-Au nanoparticle films were demonstrated, which had both controllability and selective permeability. |
Author | Chen, Qingwei Li, Jianming Zhu, Bin Xu, Dongsheng Li, Jingjian Cao, Rui-Guo |
AuthorAffiliation | State Key Laboratory for Structural Chemistry of Unstable and Stable Species Peking University College of Chemistry and Molecular Engineering |
AuthorAffiliation_xml | – name: State Key Laboratory for Structural Chemistry of Unstable and Stable Species – name: Peking University – name: College of Chemistry and Molecular Engineering |
Author_xml | – sequence: 1 givenname: Bin surname: Zhu fullname: Zhu, Bin – sequence: 2 givenname: Jingjian surname: Li fullname: Li, Jingjian – sequence: 3 givenname: Qingwei surname: Chen fullname: Chen, Qingwei – sequence: 4 givenname: Rui-Guo surname: Cao fullname: Cao, Rui-Guo – sequence: 5 givenname: Jianming surname: Li fullname: Li, Jianming – sequence: 6 givenname: Dongsheng surname: Xu fullname: Xu, Dongsheng |
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ContentType | Journal Article |
DOI | 10.1039/b925961a |
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Snippet | In the present work, we demonstrated a novel type of artificial K
+
-gated ion channels based on titania nanotubes loaded with Au nanoparticles and G-rich DNA... |
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Title | Artificial, switchable K+-gated ion channels based on flow-through titania-nanotube arraysElectronic supplementary information (ESI) available: Additional experimental data. See DOI: 10.1039/b925961a |
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