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A self-assembled cyclodextrin nanocarrier for photoreactive squaraine
Ulrike Kauscher1, Bart Jan Ravoo1
1Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany.
Beilstein Journal of Organic Chemistry
|February 2, 2017
Summary
Photoreactive squaraine molecules were anchored to cyclodextrin nanocarriers to boost their effectiveness in photodynamic therapy. This supramolecular approach enhances the photochemical activity of squaraines for potential cancer treatment applications.
Area of Science:
- Supramolecular Chemistry
- Photochemistry
- Nanotechnology
Background:
- Photoreactive squaraines generate cytotoxic oxygen species upon irradiation, showing promise for photodynamic therapy.
- Challenges exist in optimizing squaraine delivery and photochemical activity for therapeutic applications.
Purpose of the Study:
- To immobilize squaraines onto a self-assembled nanocarrier system composed of amphiphilic cyclodextrins.
- To enhance the photochemical activity of squaraines through supramolecular immobilization.
Main Methods:
- Synthesized squaraines functionalized with adamantane moieties for anchoring.
- Utilized amphiphilic cyclodextrins to form self-assembled nanocarriers.
- Employed fluorescence spectroscopy and microscopy to confirm supramolecular immobilization.
- Investigated squaraine photochemistry using absorption spectroscopy.
Main Results:
- Successfully immobilized functionalized squaraines onto cyclodextrin nanocarriers.
- Demonstrated enhanced photochemical activity of the immobilized squaraines.
- Confirmed the supramolecular assembly and anchoring mechanism.
Conclusions:
- Supramolecular immobilization of squaraines on cyclodextrin nanocarriers is an effective strategy to enhance their photochemical activity.
- This approach holds significant potential for advancing photodynamic therapy applications.
