Fig. 5From: Quantitative assessment of AD markers using naked eyes: point-of-care testing with paper-based lateral flow immunoassayCharacterization of antibody-modified NHS-magnetic nanoparticles (MNPs). a Schematic illustration of the working steps for the use of antibody-modified MNPs for the enrichment of Aβ42Os and/or Aβ42Ms. b A 12% reduced SDS-PAGE gel analysis of 1F12-MNPs. 1F12 and NMNs were used as controls. ELISA (c) and IP-Western blotting (d) analysis for the bioactivity of 1F12-MNPs. Data are presented as means ± SD, n = 3 in cBack to article page