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Evaluation of Polyhedral Oligomeric Silsesquioxane Porphyrin Derivatives on Photodynamic Therapy
| Content Provider | MDPI |
|---|---|
| Author | Siano, Paolo Johnston, Alexis Loman-Cortes, Paula Zhin, Zaneta Vivero-Escoto, Juan |
| Copyright Year | 2020 |
| Description | Polyhedral oligomeric silsesquioxane (POSS) is a promising scaffold to be used as delivery system. POSS can modify the properties of photosensitizers to enhance their efficacy toward photodynamic therapy (PDT). In this work, we designed, synthesized and characterized five different POSS porphyrin (POSSPs 1–5) derivatives containing hydrophobic (1–3) and hydrophilic (4 and 5) functional groups. In general, all the POSSPs showed a better singlet oxygen quantum yield than the parent porphyrins due to the steric hindrance from the POSS unique structure. POSSPs 1 and 3 containing isobutyl groups showed better PDT performance in cancer cells at lower concentrations than POSSPs 4 and 5. However; at higher concentrations, the POSSP4 containing hydrophilic groups has an enhanced PDT efficiency as compared with the parent porphyrin. We envision that the chemical tunability of POSSs can be used as a promising option to improve the delivery and performance of photosensitizers. |
| Starting Page | 4965 |
| e-ISSN | 14203049 |
| DOI | 10.3390/molecules25214965 |
| Journal | Molecules |
| Issue Number | 21 |
| Volume Number | 25 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-10-27 |
| Access Restriction | Open |
| Subject Keyword | Molecules Medicinal Chemistry Polyhedral Oligomeric Polysilsesquioxane Nanoparticles Photodynamic Therapy Cancer Porphyrins |
| Content Type | Text |
| Resource Type | Article |
