青岛科技大学  English 
李东祥
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教师拼音名称:lidongxiang

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学历:博士研究生

学位:理学博士

毕业院校:山东大学

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A Photoinduced Reversible Phase Transition in a Dipeptide Supramolecular Assembly

关键字:dipeptides; phase transition; photoacid generators; photoswitches; supermolecular assembly

摘要:Tunable supramolecular assembly has found various applications in biomedicine, molecular catalysis, optoelectronics, and nanofabrication. Unlike traditional covalent conjugation, non-covalent introduction of a photoswitchable moiety enables reversible photomodulation of non-photosensitive dipeptide supramolecular assembly. Under light illumination, a long-lived photoacid generator releases a proton and mediates the dissociation of dipeptide-based organogel, thereby resulting in sol formation. Under darkness, the photoswitchable moiety entraps a proton, resulting in gel regeneration. Furthermore, accompanying the isothermal recycled gel-sol transition in a spatially controlled manner, renewable patterns are spontaneously fabricated. This new concept of light-controlled phase transition of amino acid-based supramolecular assemblies will open up the possibility of wide applications.

卷号:57

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