Post by Oscar on Feb 9, 2022 14:49:17 GMT
Hello!
I'm trying to get a better understanding of how collision reactions are initiated. I understand that molecules/particles are represented as points and the collisions can trigger a reaction:
"Detection of collisions. Ray-tracing algorithms detect collisions between
the diffusing particles and other particles or surfaces as it diffuses. As
a particle moves along a straight-line trajectory, any particle within a
specified collision radius is checked to determine if the pair undergoes a
reaction."
- MCell documentation, Spatial Stochastic Modeling with MCell and CellBlender (PDF)
I'm modelling receptors on a surface that need to be within a relatively small surface area. Visually, they overlap but I guess their centers never overlap. However, I am curious to how this affects their reaction initiations.
Firstly, would like the collision radius of each receptor to be more like it's actual radius.
Secondly, I would like the receptors to be placed with the condition that is cannot be inside the radius of another receptor. Is that possible?
Image of receptors within a circular surface area.
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Thank you in advance,
Oscar
I'm trying to get a better understanding of how collision reactions are initiated. I understand that molecules/particles are represented as points and the collisions can trigger a reaction:
"Detection of collisions. Ray-tracing algorithms detect collisions between
the diffusing particles and other particles or surfaces as it diffuses. As
a particle moves along a straight-line trajectory, any particle within a
specified collision radius is checked to determine if the pair undergoes a
reaction."
- MCell documentation, Spatial Stochastic Modeling with MCell and CellBlender (PDF)
- What is the default "collision radius" of a particle?
- Is it possible to change it?
I'm modelling receptors on a surface that need to be within a relatively small surface area. Visually, they overlap but I guess their centers never overlap. However, I am curious to how this affects their reaction initiations.
Firstly, would like the collision radius of each receptor to be more like it's actual radius.
Secondly, I would like the receptors to be placed with the condition that is cannot be inside the radius of another receptor. Is that possible?
Image of receptors within a circular surface area.
Thank you in advance,
Oscar