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Published on: May 22, 2020
"Smart" nickel oxide based core-shell nanoparticles for combined chemo and photodynamic cancer therapy
Shazia Bano1, Samina Nazir2, Saeeda Munir3
1Department of Physics, The Islamia University of Bahawalpur; Nanosciences and Technology Department, National Centre for Physics, Islamabad; Institute of Biomedical and Genetic Engineering, Islamabad, Pakistan.
Abstract:
We report "smart" nickel oxide nanoparticles (NOPs) as multimodal cancer therapy agent. Water-dispersible and light-sensitive NiO core was synthesized with folic acid (FA) connected bovine serum albumin (BSA) shell on entrapped doxorubicin (DOX). The entrapped drug from NOP-DOX@BSA-FA was released in a sustained way (64 hours, pH=5.5, dark conditions) while a robust release was found under red light exposure (in 1/2 hour under λmax=655 nm, 50 mW/cm(2), at pH=5.5). The cell viability, thiobarbituric acid reactive substances and diphenylisobenzofuran assays conducted under light and dark conditions revealed a high photodynamic therapy potential of our construct. Furthermore, we found that the combined effect of DOX and NOPs from NOP-DOX@BSA-FA resulted in cell death approximately eightfold high compared to free DOX. We propose that NOP-DOX@BSA-FA is a potential photodynamic therapy agent and a collective drug delivery system for the systemic administration of cancer chemotherapeutics resulting in combination therapy.
