Aptasensing Technology and Its Potential Applications: Where Do We Stand?

Aptamers, valued for their stability, target affinity, and modifiability, have advanced biosensing, yet key challenges hinder their translation into practical sensing platforms. This work explores the future potential of aptasensing technologies across various fields, such as clinical chemistry, quality control, protein analysis, wastewater treatment, nanomaterial characterization, forensic evidence analysis, animal health monitoring, heavy metal detection, security, machine learning, and AI in aptamer design. This review also provides a detailed discussion of their underlying molecular mechanisms, highlighting their applications and effectiveness. Herein, numerous challenges in the field and potential solutions have been proposed, which could expedite the selection of the aptasensing paradigm for future usage and aid in diversifying aptasensors. This review aims to update researchers in biomedical engineering, materials science, clinical microbiology, and food science, advancing aptasensors toward clinical application.