pH/GSH dual responsive nanosystem for nitric oxide generation enhanced type I photodynamic therapy.

"Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper."

"The authors acknowledge the financial support from the 10.13039/501100001352National University of Singapore (NUHSRO/2020/133/Startup/08, NUHSRO/2023/008/NUSMed/TCE/LOA, NUHSRO/2021/034/TRP/09/Nanomedicine), 10.13039/501100001349National Medical Research Council (MOH-001388-00, MOH-001041, CG21APR1005), Singapore Ministry of Education (MOE-000387-00), 10.13039/501100001321National Research Foundation (NRF-000352-00) and the Open Fund Young Individual Research Grant of Singapore (MOH-001127-01). Jianhua Zou: Writing – original draft, Investigation, Conceptualization. Zheng Li: Investigation. Yang Zhu: Investigation. Yucen Tao: Investigation. Qing You: Investigation. Fangfang Cao: Investigation. Qinghe Wu: Investigation. Min Wu: Investigation. Junjie Cheng: Investigation. Jianwei Zhu: Investigation. Xiaoyuan Chen: Writing – review & editing, Supervision, Funding acquisition, Conceptualization."