Rational Design and Application of a Redox-Active, Photoresponsive, Discrete Metallogelator
A photoresponsive discrete metallogelator was rationally designed by incorporating a photochromic azobenzene subunit in the structure of a redox‐active ferrocene–peptide conjugate. The target molecule was purposefully equipped with a dipeptide unit capable of self‐assembly in response to sonication....
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Published in | Chemistry : a European journal Vol. 21; no. 21; pp. 7695 - 7700 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
18.05.2015
WILEY‐VCH Verlag Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | A photoresponsive discrete metallogelator was rationally designed by incorporating a photochromic azobenzene subunit in the structure of a redox‐active ferrocene–peptide conjugate. The target molecule was purposefully equipped with a dipeptide unit capable of self‐assembly in response to sonication. The designed molecule was shown to undergo supramolecular self‐assembly and achieve organogelation in response to ultrasound, light, heat, and redox signals. The sol–gel phase transition of the designed gelator was found to be sensitive to a plethora of input stimuli, allowing the application of the sol–gel transition behavior in basic logic gate operations. A gel‐based NOT logic gate operation was realized when the redox‐active property of the organogel was examined by using different oxidizing agents. The smart response of the gelator was further exploited in designing XOR operations under oxidizing or non‐oxidizing conditions.
A creature of fine sensations: Like Frankenstein's monster, which was pieced together from multiple parts, a photoresponsive discrete metallogelator has been created by incorporating a photochromic azobenzene subunit in the structure of a redox‐active ferrocene–peptide conjugate bearing a sound‐responsive dipeptide. The sol–gel transition of the gelator was found to be sensitive to different input stimuli and exhibited basic gel‐based logic gate operations. |
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Bibliography: | NSERC Department of Chemistry at the University of Toronto Western University Canada istex:87CED2F946EFF8C508147B3E6EC7D196F6D93319 ark:/67375/WNG-01G2FRWP-V ArticleID:CHEM201500704 University of Toronto ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0947-6539 1521-3765 |
DOI: | 10.1002/chem.201500704 |