Can you please suggest a forcefield that can be used to simulate the gold nano particle interactions

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I was trying to simulate the interaction between gold nanoparticles (generated from CHARMM nanomaterials) and lipid bilayer (generated from CHARMM membrane builder). Can you please suggest a suitable forcefield that can be used for the nanomaterial simulation?

…how about CHARMM? ;)

But seriously, CHARMM has everything you need, including the metals, so I don’t see any reason why that would not be an immediate choice.