Less fuzzy lipids

lipid phase diagrams

A recent study by Carpenter, Lopez and coworkers nicely characterized the phase behavior of Martini DPPC/DOPC/cholesterol ternary mixtures. General Martini parameters correctly captured a large fraction of the phase diagram, but parameters optimized against CHARMM DOPC and DPPC simulations could better capture some of the details, especially close to the critical point.

The new lipid parameters specifically tuned to CHARMM DOPC and DPPC can be found here and in the Martini lipid parameter list: DPPC and DOPC.

For details see JCTC 2018, DOI:10.1021/acs.jctc.8b00496.