Interfacing supramolecular gels and quantum dots with ultrasound: smart photoluminescent dipeptide gels

From National Research Council Canada

DOIResolve DOI: http://doi.org/10.1002/adma.200801812
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Name affiliation
  1. National Research Council Canada. NRC Steacie Institute for Molecular Sciences
  2. National Research Council Canada. NRC Institute for Research in Construction
  3. National Research Council Canada. NRC Institute for Chemical Process and Environmental Technology
  4. National Research Council Canada. NRC Institute for Microstructural Sciences
TypeArticle
Journal titleAdvanced Materials
ISSN0935-9648
1521-4095
Volume20
Issue23
Pages4517–4520; # of pages: 4
Abstract
Our recent discovery of a new dipeptide gelator that can be activated by ultrasound in alkanes and polar solvents[8] allows one to envision several unusual and unexpected applications. A striking feature of this dipeptide is the readily ultrasound-induced gelation in hexane containing CdSe/ZnS core/shell QDs. In this case, ultrasound allows a blurring of the frontier between ‘‘soft’’ multi-responsive supramolecular gels and ‘‘hard’’ light-emitting semiconductor NPs, affording new materials displaying properties from each component. Here, we describe the preparation of QD-dipeptide nanocomposite gels which show bright luminescence under UV light and which can be switched from liquid to solid by ultrasound and back to liquid when heated. Applications using the gel and the dry material (xerogel) are also demonstrated regarding chemical sensing.
Publication date
PublisherWiley
LanguageEnglish
Peer reviewedYes
NPARC number21276873
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Record identifierf6dc0373-db98-4c94-af53-1fd324b13411
Record created2015-10-28
Record modified2017-07-05
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