pH-responsive supramolecular nanovalves based on cucurbit[6]uril pseudorotaxanes

Sarah Angelos; Ying Wei Yang; Kaushik Patel; J. Fraser Stoddart; Jeffrey I. Zink

doi:10.1002/anie.200705211

pH-responsive supramolecular nanovalves based on cucurbit[6]uril pseudorotaxanes

Sarah Angelos^*, Ying Wei Yang, Kaushik Patel, J. Fraser Stoddart, Jeffrey I. Zink

^*Corresponding author for this work

Chemistry

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

410 Scopus citations

Abstract

An open and closed case: pH-controllable nanovalves that operate in water have been produced by attaching [2]pseudorotaxanes to the surface of mesoporous silica nanoparticles. The nanovalves are able to contain guest molecules (rhodamine B, red circles) within the nanopores at acidic and neutral pH values but release them on command when the pH value is raised (see picture). (Graph Presented).

Original language	English (US)
Pages (from-to)	2222-2226
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	47
Issue number	12
DOIs	https://doi.org/10.1002/anie.200705211
State	Published - Mar 7 2008

Keywords

Heterogeneous catalysis
Host-guest systems
Mesoporous materials
Molecular devices
Surface chemistry

ASJC Scopus subject areas

Chemistry(all)
Catalysis

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10.1002/anie.200705211

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abstract = "An open and closed case: pH-controllable nanovalves that operate in water have been produced by attaching [2]pseudorotaxanes to the surface of mesoporous silica nanoparticles. The nanovalves are able to contain guest molecules (rhodamine B, red circles) within the nanopores at acidic and neutral pH values but release them on command when the pH value is raised (see picture). (Graph Presented).",

keywords = "Heterogeneous catalysis, Host-guest systems, Mesoporous materials, Molecular devices, Surface chemistry",

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AU - Stoddart, J. Fraser

AU - Zink, Jeffrey I.

PY - 2008/3/7

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AB - An open and closed case: pH-controllable nanovalves that operate in water have been produced by attaching [2]pseudorotaxanes to the surface of mesoporous silica nanoparticles. The nanovalves are able to contain guest molecules (rhodamine B, red circles) within the nanopores at acidic and neutral pH values but release them on command when the pH value is raised (see picture). (Graph Presented).

KW - Heterogeneous catalysis

KW - Host-guest systems

KW - Mesoporous materials

KW - Molecular devices

KW - Surface chemistry

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pH-responsive supramolecular nanovalves based on cucurbit[6]uril pseudorotaxanes

Abstract

Keywords

ASJC Scopus subject areas

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