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Singlet oxygen generation from porphyrin-functionalized hexahedral polysilicon microparticles

Bruce, Gordon; Samperi, Mario; Amabilino, David B.; Duch, Marta; Plaza, Jos� A.; P�rez-Garc�a, Llu�sa

Authors

Gordon Bruce

Mario Samperi

David B. Amabilino

Marta Duch

Jos� A. Plaza

Llu�sa P�rez-Garc�a



Abstract

© 2019 World Scientific Publishing Company. The generation of singlet oxygen (SO), primarily by using a combination of light and photosensitizers in the presence of a dissolved gas, finds applications in both chemistry and medicine. The efficiency of its formation can be enhanced by immobilization of the photosensitizers. In this work, we have explored the covalent functionalization in suspension of hexahedral slab-like polysilicon microparticles (μP, with a largest dimension of three microns) with a model photosensitizer, 5-(4-isothiocyanatophenyl)-10,15,20-(triphenyl)porphyrin (ITC-P), and evaluated the singlet oxygen generation of this photosensitizer in solution and after immobilization (ITC-P-μP) in suspension. The SO-detection experiment on the functionalized microparticles was performed using a hydrogel as the matrix supporting the microparticles (to avoid their settling), and revealed that ITC-P-μPin suspension is capable of generating SO more efficiently than free ITC-P in solution.

Citation

Bruce, G., Samperi, M., Amabilino, D. B., Duch, M., Plaza, J. A., & Pérez-García, L. (2019). Singlet oxygen generation from porphyrin-functionalized hexahedral polysilicon microparticles. Journal of Porphyrins and Phthalocyanines, 23(01n02), 223-233. https://doi.org/10.1142/s1088424619500226

Journal Article Type Article
Acceptance Date Feb 1, 2019
Online Publication Date Mar 6, 2019
Publication Date Mar 6, 2019
Deposit Date Apr 29, 2019
Publicly Available Date Mar 29, 2024
Journal Journal of Porphyrins and Phthalocyanines
Print ISSN 1088-4246
Electronic ISSN 1099-1409
Publisher World Scientific
Peer Reviewed Peer Reviewed
Volume 23
Issue 01n02
Pages 223-233
DOI https://doi.org/10.1142/s1088424619500226
Keywords General Chemistry
Public URL https://nottingham-repository.worktribe.com/output/1853276
Publisher URL https://www.worldscientific.com/doi/abs/10.1142/S1088424619500226

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