Modify formulation based on concentrations

Description

This node receives a cell full of solvent and at least one additional component node to substitute solvent molecules by the new component(s). This system operation function can be useful to simulate a dynamic environment in which the concentration of some component must vary.

Latest version

Allowed number of parents: 2 or more

  1. Cell full of solvent

  2. Component to insert

Parameter Description Value type Value restrictions Default value Units

Concentration

Target concentration of the inserted component(s)

float

>=0

0

% w/w

Solvent name

Name of the solvent

selector

component names

empty

N/A

Insertion ordering

The ordering of insertion of the copies of the molecules

selector

according to hierarchy of parents, random, according to molecular weight of parents (heaviest first), evenly distributed

according to molecular weight of parents (heaviest first)

N/A

Orientation

The orientation of the components to be inserted

selector

random, regular

random

N/A

Position

The position within the cell where the components shall be inserted

selector

random, spacefilling

random

N/A

Minimal distance between atoms

Minimal distance between two inserted components.

float

>0

2.0

Angstrom

Periodic boundary conditions

Indicates whether we have periodic boundary conditions in x, y and z

boolean

True, False

[True, True,True]

N/A

Seed for random generation

The seed used in the random generator, -1 can be selected for a random seed

int

>-1

123

N/A

Enable minimization

Indicates if a GROMACS energy minimization should be performed to increase the insertion success rate

boolean

True, False

False

N/A