Institute of Biomedical Engineering;
School of Ophthalmology&Optometry and Eye Hospital;
Wenzhou Medical University;
Wenzhou 325027;
China;
Department of Neurosurgery;
First Affiliated Hospital of Wenzhou Medical University;
Wenzhou 325000;
China;
Fluorescence resonance energy transfer; pH response; Self-assembled nanoparticle; Au nanorod; Block copolymer;