Abstract
A novel, highly sensitive, and cost-effective biosensor for prostate-specific antigen (PSA) detection has been developed using bioengineered nanotechnology. This biosensor integrates a Fe(III)-Gallic acid metal organic framework (Fe-GA MOF) embedded in a carboxymethyl cellulose polymer thin film, coupled with a PSA monoclonal antibody for capture. The resulting sensor demonstrates exceptional performance in detecting PSA levels within a wide concentration range (0.1–170 ng/mL), with a remarkable limit of detection of 0.06 ng/mL. This advanced technology surpasses conventional methods by providing enhanced sensitivity, stability, and reduced interference. The biosensor holds immense potential for early prostate cancer diagnosis, monitoring treatment response, and detecting recurrence. Moreover, its applicability may extend to other cancers characterized by elevated PSA levels, ultimately improving patient outcomes through timely intervention and optimized care.
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