Introduction of SELEX and Important SELEX Variants / Yiyang Dong, Zhuo Wang, Sai Wang, Yehui Wu, Yufan Ma, Jiahui Liu -- In Chemico Modification of Nucleotides for Better Recognition / Przemyslaw Jurek, Marta Matusiewicz, Maciej Mazurek, Filip Jelen -- Immobilization of Aptamers on Substrates / Annalisa De Girolamo, Maureen McKeague, Michelangelo Pascale, Marina Cortese, Maria C DeRosa -- Characterization of Aptamer-Ligand Complexes / Rebeca Miranda-Castro, Noemí de-los-Santos-Álvarez, María J Lobo-Castañón -- Utilization of Aptamers for Sample Preparation in Analytical Methods / Zhiyong Yan, Yang Liu -- Development of Aptamer-Based Colorimetric Analytical Methods / Subash CB Gopinath, Thangavel Lakshmipriya, MK Md Arshad, Chun Hong Voon -- Enzyme-Linked Aptamer Assay (ELAA) / Yiyang Dong, Sai Wang -- Development of Aptamer-Based Fluorescence Sensors / Seyed M Taghdisi, Rezvan Yazdian-Robati, Mona Alibolandi, Mohammad Ramezani, Khalil Abnous -- Development of Aptamer-Based Electrochemical Methods / Jian-guo Xu, Li Yao, Lin Cheng, Chao Yan, Wei Chen -- Development of Aptamer-Based Lateral Flow AssayMethods / Miriam Jauset-Rubio, Mohammad S El-Shahawi, Abdulaziz S Bashammakh, Abdulrahman O Alyoubi, Ciara K O'Sullivan -- Development of Aptamer-Based Non-labeling Methods / Huajie Gu, Liling Hao, Zhouping Wang -- Challenges of SELEX and Demerits of Aptamer-Based Methods / Haiyun Liu, Jinghua Yu -- State of the Art and Emerging Applications / Lin-Chi Chen, Jui-Hong Weng, Pei-Wei Lee.