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Photoinduced Release of Guest Molecules by Supramolecular Transformation of Self-Assembled Aggregates Derived from Dendrons

Authors

  • Chiyoung Park,

    1. Department of Polymer Science and Engineering, Hyperstructured Organic Materials Research Center, Inha University, Incheon 402-751, South Korea, Fax: (+82) 32-865-5178
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  • Jino Lim,

    1. Department of Polymer Science and Engineering, Hyperstructured Organic Materials Research Center, Inha University, Incheon 402-751, South Korea, Fax: (+82) 32-865-5178
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  • Mikyoung Yun,

    1. Department of Polymer Science and Engineering, Hyperstructured Organic Materials Research Center, Inha University, Incheon 402-751, South Korea, Fax: (+82) 32-865-5178
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  • Chulhee Kim Prof. Dr.

    1. Department of Polymer Science and Engineering, Hyperstructured Organic Materials Research Center, Inha University, Incheon 402-751, South Korea, Fax: (+82) 32-865-5178
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  • This work was supported by the Korea Research Foundation (KRF-2007-313-D00205). C.K. also thanks the Korea Health 21 R&D Project (A062254) and the National R&D Program for Cancer Control (0620340-1) for financial support.

Abstract

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The missing link: Supramolecular transformation from a vesicle to a fibrous nanostructure has been achieved by photolytic cleavage and supramolecular reorganization of a dendritic building block containing a 2-nitrobenzyl group (see picture). Furthermore, supramolecular aggregates of an amide dendron with a photoisomerizable azobenzene unit exhibit controlled release of encapsulated molecules upon photoirradiation in the aqueous phase.

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