Copper (I) has some very good results as an antimicrobial and I am wondering if there is a way to bond the copper to a ligand while still maintaining its ability to kill pathogens. I know that generally, copper prefers an SP3 hybridization and so this may be a difficult problem to solve but I am curious if anyone has had any experience with or has any ideas for this issue. I am looking into creating a spray that could kill pathogens that land on a coated surface rather than trying to create a disinfectant spray. The surface would be disinfected and cleaned before the copper would be applied.