Recent Advances in Nanotechnology-Driven Analytical Approaches for Medical Diagnostics: A Review

Abstract

Nanotechnology has significantly reshaped analytical chemistry by introducing techniques and materials that enhance sensitivity, specificity, and miniaturization of analytical systems. These advances are particularly impactful in medical diagnostics, where early and accurate detection is crucial. As research progresses, further integration of nanomaterials into diagnostic platforms promises continued improvements in assay performance and accessibility, especially in resource-limited settings. It is through nanotechnology and analytical chemistry, that the transformations have occurred in the area of medical diagnostics precipitating from the characteristics of nanoscale materials. Starting from properties such as high surface-to-volume ratio, quantum effects, tunable optical or electrical properties, etc., very sensitive and selective tools for medical diagnostics on ultralow concentrations of biomarkers are being developed. Among them are innovations recently presented here describing gold nanoparticles, quantum dots, carbon nanotubes, graphene, and magnetic nanoparticles-based analytical techniques. The trend biosensors exploited for lateral flow systems in lab-on-a-chip and even wearable sensors cover an application field from early cancer detection to infectious pathogen identification to glucose monitoring with real-time detection up to non-invasive liquid biopsy analysis on circulating tumor biomarkers. Meanwhile, it opens a review window by indicating however nanotechnology integrated together with artificial intelligence and microfluidic systems can result in a laboratory on a chip for personalized healthcare at the patient's bedside. Though issues of reproducibility, cost, and regulatory approval remain, the future convergence of nanotechnology with biomedical diagnostics is extremely promising. This paper further emphasizes the dire need for continued interdisciplinary research and development toward gaining the proposed clinical advantages of nanodiagnostics and making sure about their successful movement from laboratories into real healthcare applications.

Keywords:

nanotechnology, analytical approaches, medical diagnostics

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