Abstract
Nowadays, fast and sensitive methods for biomarkers detection exist, but the performance of most of them still rely centralized laboratory testing. The development of small, fast and simple to use medical devices that can help in making diagnosis accurate and with low-invasiveness is now a major challenge for nanotechnology. Nanomaterialsbased systems have significant advantages over current conventional approaches in terms of simplicity, sensitivity, specificity, and rapidity. In this review, we describe the most interesting nanotechnological devices/approaches proposed for circulating biomarkers detection in oncology. In particular, new applicable nanobiosensors for nucleic acids and proteins identification are discussed and classified into four most interesting nanotechnologies: bio-barcodes, quantum dots, metal nanoparticles and carbon-based nanosensors. Their versatility has been demonstrated in different applications aiming to detect and quantify cancer biomarkers in real biological samples, in order to show how these methods can lead, in the future, to the development of devices for routine clinical application.
Keywords: Nanotechnology, cancer, circulating biomarkers, serum, plasma, blood.
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