article · Photodiagnosis and Photodynamic Therapy
This study focuses on the synthesis of sugar decorated porphyrins and their gold nanoparticle conjugates as photosensitizers for photodynamic therapy (PDT). Linking the sugar to the porphyrins imparted water solubility to the latter. The conjugation to sugar molecules enhanced the singlet oxygen quantum yield and improved the cellular uptake and therefore, their phototoxicity in some cases. The porphyrins (with or without the sugar) were linked to the Au nanoparticles (AuNPs). The activity of the synthesized complexes and conjugates with AuNPs were tested against the MDA-MB-231 breast cancer cells using the resazurin assay to monitor the cell viability. The conjugate of In porphyrin with AuNPs showed the highest PDT activity.
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DOI: 10.1016/j.pdpdt.2025.104658
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