Fig. 4From: Nanodiamond enhances immune responses in mice against recombinant HA/H7N9 proteinSynthesis and physical characterization of H7-ND conjugates. The re-suspension of nanodiamond particles before protein coating (ND) and after coating with trimeric H7 protein (H7:ND): a in H2O; b in 1× PBS; c Zeta-potential of H7:ND and NDBack to article page