Aptamers are single-stranded DNA or RNA molecules that may precisely bind to target molecules by forming three-dimensional structures. They range in length from 20 to 100 nucleotides. The biomedical industry is becoming more and more interested in these novel targeted compounds. Aptamers have a number of benefits over conventional protein antibodies, including small size, high binding affinity, specificity, good biocompatibility, high stability, and low immunogenicity, all of which lead to their widespread use in the biomedical industry.