Extended Data Fig. 1: Hexapod synthesis and heterostructure protein modifications.
From: Multimodal probing of T-cell recognition with hexapod heterostructures
a, The synthesis and modification of hexapods: i) hematite cores are dispersed in PVP pentanol solution. The viscous solution prevents particle precipitation and hematite aggregation. Water forms emulsion droplets on hematite surface, while PVP and citrate help the oil/water phase separation. TEOS is the silica precursor, NH4OH is the catalyst for TEOS condensation, and the addition of C2H5OH forms a homogeneous solution in the droplets. Silica branches grow via tetraethoxysilane (TEOS) condensation, forming one branch on each facet of the cubic hematite core. ii) Schematic showing individual surface modification steps. b, 3D reconstructed fluorescent image of CD19-hexapods labeled with AF488-anti-CD19 fluorescent dye.
