title: Encapsulation of palladium porphyrin photosensitizer in layered metal oxide nanoparticles for photodynamic therapy against skin melanoma.
abstract: We designed a biodegradable nanocarrier of layered double hydroxide (LDH) for photodynamic therapy (PDT) based on the intercalation of a palladium porphyrin photosensitizer (PdTCPP) in the gallery of LDH for melanoma theragnosis. Physical and chemical characterizations have demonstrated the photosensitizer was stable in the layered structures. In addition, the synthesized nanocomposites rendered extremely efficacious therapy in the B16F10 melanoma cell line by improving the solubility of the hydrophobic PdTCPP photosensitizer. The detection of singlet oxygen generation under irradiation at the excitation wavelength of a 532 nm laser was indeed impressive. Furthermore, thein vivoresults using a tumour xenograft model in mice indicated the apparent absence of body weight loss and relative organ weight variation to the liver and kidney demonstrated that the nanocomposites were biosafe with a significant reduction in tumour volume for the anti-cancer efficacy of PDT. This drug delivery system using the nanoparticle-photosensitizer hybrid has great potential in melanoma theragnosis.
authors.affiliation: Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 974, Taiwan.
authors.forename: Zih-An
authors.initials: ZA
authors.lastname: Chen
authors.affiliation: Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 974, Taiwan.
authors.forename: Yaswanth
authors.initials: Y
authors.lastname: Kuthati
authors.affiliation: Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 974, Taiwan.
authors.forename: Ranjith Kumar
authors.initials: RK
authors.lastname: Kankala
authors.affiliation: Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 974, Taiwan.
authors.forename: Yu-Chuan
authors.initials: YC
authors.lastname: Chang
authors.affiliation: Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 974, Taiwan.
authors.forename: Chen-Lun
authors.initials: CL
authors.lastname: Liu
authors.affiliation: Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 974, Taiwan.
authors.forename: Ching-Feng
authors.initials: CF
authors.lastname: Weng
authors.affiliation: Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
authors.forename: Chung-Yuan
authors.initials: CY
authors.lastname: Mou
authors.affiliation: Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 974, Taiwan.
authors.forename: Chia-Hung
authors.initials: CH
authors.lastname: Lee
keywords: layered double hydroxide; nanoparticles; photodynamic therapy