A redox responsive, fluorescent supramolecular metallohydrogel consists of nanofibers with single-molecule width

Ye Zhang; Bei Zhang; Yi Kuang; Yuan Gao; Junfeng Shi; Xixiang Zhang; Bing Xu

doi:10.1021/ja402490j

A redox responsive, fluorescent supramolecular metallohydrogel consists of nanofibers with single-molecule width

Ye Zhang, Bei Zhang, Yi Kuang, Yuan Gao, Junfeng Shi, Xixiang Zhang, Bing Xu

Research output: Contribution to journal › Article › peer-review

142 Scopus citations

Abstract

The integration of a tripeptide derivative, which is a versatile self-assembly motif, with a ruthenium(II)tris(bipyridine) complex affords the first supramolecular metallo-hydrogelator that not only self assembles in water to form a hydrogel but also exhibits gel-sol transition upon oxidation of the metal center. Surprisingly, the incorporation of the metal complex in the hydrogelator results in the nanofibers, formed by the self-assembly of the hydrogelator in water, to have the width of a single molecule of the hydrogelator. These results illustrate that metal complexes, besides being able to impart rich optical, electronic, redox, or magnetic properties to supramolecular hydrogels, also offer a unique geometrical control to prearrange the self-assembly motif prior to self-assembling. The use of metal complexes to modulate the dimensionality of intermolecular interactions may also help elucidate the interactions of the molecular nanofibers with other molecules, thus facilitating the development of supramolecular hydrogel materials for a wide range of applications. © 2013 American Chemical Society.

Original language	English (US)
Pages (from-to)	5008-5011
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	135
Issue number	13
DOIs	https://doi.org/10.1021/ja402490j
State	Published - Mar 25 2013

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was partially supported by a grant from the Army Research Office (ARO 56735-MS), a National Science Foundation MRSEC Grant (DMR-0820492), NIH (R01 CA142746), and start-up funds from Brandeis University. The TEM images were taken at the EM facility of Brandeis University.

ASJC Scopus subject areas

Biochemistry
Colloid and Surface Chemistry
General Chemistry
Catalysis

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10.1021/ja402490j

https://repository.kaust.edu.sa/bitstream/10754/562716/1/Articlefile1.pdf

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title = "A redox responsive, fluorescent supramolecular metallohydrogel consists of nanofibers with single-molecule width",

abstract = "The integration of a tripeptide derivative, which is a versatile self-assembly motif, with a ruthenium(II)tris(bipyridine) complex affords the first supramolecular metallo-hydrogelator that not only self assembles in water to form a hydrogel but also exhibits gel-sol transition upon oxidation of the metal center. Surprisingly, the incorporation of the metal complex in the hydrogelator results in the nanofibers, formed by the self-assembly of the hydrogelator in water, to have the width of a single molecule of the hydrogelator. These results illustrate that metal complexes, besides being able to impart rich optical, electronic, redox, or magnetic properties to supramolecular hydrogels, also offer a unique geometrical control to prearrange the self-assembly motif prior to self-assembling. The use of metal complexes to modulate the dimensionality of intermolecular interactions may also help elucidate the interactions of the molecular nanofibers with other molecules, thus facilitating the development of supramolecular hydrogel materials for a wide range of applications. {\textcopyright} 2013 American Chemical Society.",

author = "Ye Zhang and Bei Zhang and Yi Kuang and Yuan Gao and Junfeng Shi and Xixiang Zhang and Bing Xu",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was partially supported by a grant from the Army Research Office (ARO 56735-MS), a National Science Foundation MRSEC Grant (DMR-0820492), NIH (R01 CA142746), and start-up funds from Brandeis University. The TEM images were taken at the EM facility of Brandeis University.",

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T1 - A redox responsive, fluorescent supramolecular metallohydrogel consists of nanofibers with single-molecule width

AU - Zhang, Ye

AU - Zhang, Bei

AU - Kuang, Yi

AU - Gao, Yuan

AU - Shi, Junfeng

AU - Zhang, Xixiang

AU - Xu, Bing

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was partially supported by a grant from the Army Research Office (ARO 56735-MS), a National Science Foundation MRSEC Grant (DMR-0820492), NIH (R01 CA142746), and start-up funds from Brandeis University. The TEM images were taken at the EM facility of Brandeis University.

PY - 2013/3/25

Y1 - 2013/3/25

N2 - The integration of a tripeptide derivative, which is a versatile self-assembly motif, with a ruthenium(II)tris(bipyridine) complex affords the first supramolecular metallo-hydrogelator that not only self assembles in water to form a hydrogel but also exhibits gel-sol transition upon oxidation of the metal center. Surprisingly, the incorporation of the metal complex in the hydrogelator results in the nanofibers, formed by the self-assembly of the hydrogelator in water, to have the width of a single molecule of the hydrogelator. These results illustrate that metal complexes, besides being able to impart rich optical, electronic, redox, or magnetic properties to supramolecular hydrogels, also offer a unique geometrical control to prearrange the self-assembly motif prior to self-assembling. The use of metal complexes to modulate the dimensionality of intermolecular interactions may also help elucidate the interactions of the molecular nanofibers with other molecules, thus facilitating the development of supramolecular hydrogel materials for a wide range of applications. © 2013 American Chemical Society.

AB - The integration of a tripeptide derivative, which is a versatile self-assembly motif, with a ruthenium(II)tris(bipyridine) complex affords the first supramolecular metallo-hydrogelator that not only self assembles in water to form a hydrogel but also exhibits gel-sol transition upon oxidation of the metal center. Surprisingly, the incorporation of the metal complex in the hydrogelator results in the nanofibers, formed by the self-assembly of the hydrogelator in water, to have the width of a single molecule of the hydrogelator. These results illustrate that metal complexes, besides being able to impart rich optical, electronic, redox, or magnetic properties to supramolecular hydrogels, also offer a unique geometrical control to prearrange the self-assembly motif prior to self-assembling. The use of metal complexes to modulate the dimensionality of intermolecular interactions may also help elucidate the interactions of the molecular nanofibers with other molecules, thus facilitating the development of supramolecular hydrogel materials for a wide range of applications. © 2013 American Chemical Society.

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A redox responsive, fluorescent supramolecular metallohydrogel consists of nanofibers with single-molecule width

Abstract

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