Fig. 2From: Advances in the development paradigm of biosample‐based biosensors for early ultrasensitive detection of alzheimer’s diseaseBody fluids and AD biomarkers sensing technique: a Sources of different biosamples from human body. Reprinted with permission from ref. [19], and b Multiplex detection of Aβ42 peptide and t-Tau protein using graphene-based field effect transistor (gFET) biosensor. Reprinted with permission from ref. [67]Back to article page