Vancomycin conjugated iron oxide nanoparticles for magnetic targeting and efficient capture of Gram-positive and Gram-negative bacteria

(a) The separation of bacteria by vancomycin conjugated Fe 3 O 4 /DOPA/Van nanoparticles and (b) H-bonding interactions between the vancomycin molecule and the d -alanyl- d -alanine dipeptide of the bacterial surface.