A Synthetic Amino Acid Residue Containing A New Oligopeptide-Based Photosensitive Fluorescent Organogel

Authors

  • Dibakar Kumar Maiti,

    1. Department of Biological Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032 (India), Fax: (+91) 33-2473-2805
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  • Prof. Arindam Banerjee

    Corresponding author
    1. Department of Biological Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032 (India), Fax: (+91) 33-2473-2805
    • Department of Biological Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032 (India), Fax: (+91) 33-2473-2805

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Abstract

A synthetic amino acid (with a stilbene residue in the main chain) containing a tripeptide-based organogelator has been discovered. This peptide-based synthetic molecule 1 self-assembles in various organic solvents to form an organogel. The gel has been thoroughly characterized by using various microscopic techniques including field-emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), X-ray diffraction (XRD), UV-visible and fluorescence spectroscopy, and rheology. Morphological investigations using FESEM and AFM show a nanofibrillar network structure. Interestingly, the organogel is photoresponsive and a gel–sol transition occurred by irradiating the gel with UV light of 365 nm for 2 h as shown by the UV and fluorescence study. This photoresponsive fluorescent gel holds promise for new peptide-based soft materials with interesting applications.

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