A literature review of biosensors for multiple sclerosis: Towards personalized medicine and point-of-care testing

•There is a need for robust biomarkers for MS diagnosis and prognosis.•Point-of-care testing (POCT) provides quick results via handheld or bench-top devices.•Biosensors are important tools that can be adapted to POCT of patients with MS.•There are examples of biosensors developed to detect certain biomarkers of MS.•Nanomaterials and artificial intelligence add to the improvement of biosensors.