Cancer is the most devastating disease in the present scenario, killing millions of people
every year. Early detection, accurate diagnosis, and timely treatment are considered to be the most effective
ways to control this disease. Rapid and efficient detection of cancer at their earliest stage is one
of the most significant challenges in cancer detection and cure. Numerous diagnostic modules have
been developed to detect cancer cells early. As nucleic acid equivalent to antibodies, aptamers emerge
as a new class of molecular probes that can identify cancer-related biomarkers or circulating rare cancer/
tumor cells with very high specificity and sensitivity. The amalgamation of aptamers with the biosensing
platforms gave birth to "Aptasensors." The advent of highly sensitive aptasensors has opened
up many new promising point-of-care diagnostics for cancer. This comprehensive review focuses on
the newly developed aptasensors for cancer diagnostics.
Keywords: Aptamers, cancer diagnosis, biomarker, aptasensors, cancer, therapy.
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