Luoyang Central Hospital Affiliated to Zhengzhou University;
Luoyang 471009;
China;
School of Pharmaceutical Sciences;
Zhengzhou University;
Zhengzhou 450001;
China;
Tumor Immunity and Biomaterials Advanced Medical Center;
Zhengzhou University;
Luoyang 471009;
China;
Henan Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases;
Zhengzhou 450001;
China;
Key Laboratory of Advanced Drug Preparation Technologies;
Ministry of Education;
Zhengzhou 450001;
China;
Oral drug delivery; Absorption barrier; Cluster bomb; pH-sensitive; PePT1 receptor;