Fig. 4: Simulation indicating different interactions between ofloxacin enantiomers and chiral gold surfaces.

a Comparison of the atomic arrangement of {321}R and {321}S gold surfaces. b Density of state (DOS) results show the variety of structures or chiral crystalline faces. c, d Optimized adsorption modules of (S)/(R)-ofloxacin molecules on the chiral crystalline faces. e Adsorption energies of (S)/(R)-ofloxacin molecules interacting with various chiral {321}R and {321}S gold crystal surfaces. b Source data are provided as a Source Data file.