Fig. 1
From: 2D transition metal dichalcogenides with glucan multivalency for antibody-free pathogen recognition
Simultaneous exfoliation and functionalization of TMDs with dextran. a Schematic illustration of the exfoliation and functionalization of TMDs via multivalent hydrogen bonding in an aqueous solution. Photographs of the solution of TMDs exfoliated b without dextran, c with dextran, d with glucose, and e with PEG. TEM images of f dex-WS2, g dex-WSe2, and h dex-MoSe2 (scale bar, 50 nm). Height and lateral size profiles of i dex-WS2, j dex-WSe2, and k dex-MoSe2 obtained using AFM
