. 2020 Dec 15;120(2):217–231. doi: 10.1016/j.bpj.2020.12.003

Table 2.

Interactions Involved in the Adhesion of a Bacterial Envelope to a Nanopattern

Interaction	Contact Surface		Type	Constraint Method	Contact Properties
Interaction	Master	Slave	Type	Constraint Method	Normal	Tangential
Surface adhesion	pillar	outer leaflet	surface-to-surface contact	penalty and finite sliding	hard (no separation)	rough (μ = ∞)
Hydrophobic effect	outer leaflet	inner leaflet	surface-to-surface contact	penalty and finite sliding	hard (no separation)	frictionless (μ = 0)
Lipoprotein linkage	inner leaflet	cell wall	tie constraint	surface-to-surface discretization	no relative motion