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Related Experiment Video

Updated: Sep 15, 2025

Cytotoxic Efficacy of Photodynamic Therapy in Osteosarcoma Cells In Vitro
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Selenium-Substituted BOIMPY for Enhanced Photodynamic Therapy.

Sorachat Tharamak1,2, Bongkot Ouengwanarat1, Tunyawat Khrootkaew1

  • 1School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.

ACS Medicinal Chemistry Letters
|July 16, 2025
PubMed
Summary

New seleno-substituted bis-(boron difluoride)-8-imidazo-dipyrro-methene (BOIMPY) derivatives show promise for cancer treatment. These compounds offer improved photophysical properties for imaging-guided photodynamic therapy (PDT) with high efficacy and low toxicity.

Keywords:
AnticancerBOIMPYHeavy atom effectPhotodynamic therapyPhotosensitizers

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Area of Science:

  • Organic Chemistry
  • Photochemistry
  • Biomedical Engineering

Background:

  • Bis-(boron difluoride)-8-imidazo-dipyrro-methene (BOIMPY) derivatives are explored for photodynamic therapy (PDT).
  • Optimizing photophysical properties is crucial for effective PDT agents.

Purpose of the Study:

  • To synthesize and characterize seleno-substituted BOIMPY derivatives.
  • To evaluate their photophysical properties and efficacy in cancer treatment.

Main Methods:

  • Synthesis of novel seleno-substituted BOIMPY compounds.
  • Photophysical characterization including Stokes shifts and relaxation pathways.
  • In vitro evaluation of photodynamic activity against cancer cells using near-infrared light activation.

Main Results:

  • Seleno-substituted BOIMPY derivatives exhibit enhanced photophysical features compared to twisted-BOIMPY.
  • One derivative demonstrated potent Type I and Type II PDT against cancer cells.
  • This compound showed high phototoxicity in the nanomolar range with minimal dark toxicity.

Conclusions:

  • Seleno-substituted BOIMPY derivatives are promising candidates for imaging-guided PDT.
  • The studied compound displays significant potential as a targeted cancer therapeutic agent.