Cancer is one of the most dreaded diseases known to mankind. If detected early, some cancers may be cured completely. But detecting cancer early has been difficult till recent time and most cancers were detected when it was too late. Researchers at the University of Kansas Cancer Centre in USA have now come up with an ultrasensitive diagnostic device that could allow doctors to detect cancer quickly from a droplet of blood or plasma, leading to timelier interventions and better outcomes for patients {Nature Biomedical Engineering, 25 February 2019 | DOI: 10.1038/ s41551-019-0356-9). The "lab-on-a-chip" for "liquid biopsy" analysis detects exosomes"tiny parcels of biological information produced by tumour cells to stimulate tumour growth or metastasise.
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