1. Department of Materials Science and Engineering, Engineering Research Center of Artificial Organs and Materials, Jinan University, Guangzhou 511486, China
2. Guangzhou Customs District Technology Center, Tower B, No.66 Huacheng Avenue, Zhujiang Xincheng,
Tianhe District, Guangzhou 510623, Guangdong, China
3. Department of Endoscopy, Sun Yat-Sen University Cancer Center, Guangzhou 510060, P. R. China