IM-UFF

OneAngstrom

Updated: Oct 09, 2025


Latest versions

3.0.4 for SAMSON 2025 R3

3.0.4 for SAMSON 2025 R3

3.0.4 for SAMSON 2025 R3

The reference price is the one in euros.
Non-euro prices are given for information purposes only.
Try
Free 30 days
Try
Monthly
149,00 € / mo
Subscribe
Yearly
1 490,00 € / year
Subscribe
Free forever for academic & nonprofit non-commercial use.
SAMSON and all SAMSON Extensions are free for non-commercial use.
This includes extensions for docking, simulating, animating, scripting, etc.

Most features run locally for free. Some optional calculations run in the cloud,
such as structure prediction and cloud simulations, and require computing credits.


30-day free commercial trial. No credit card required.
Subscribe anytime. Cancel anytime.

IM-UFF

OneAngstrom

Updated: Oct 09, 2025


Latest versions

3.0.4 for SAMSON 2025 R3

3.0.4 for SAMSON 2025 R3

3.0.4 for SAMSON 2025 R3

Simulate molecular systems using this generalized, Interactive-Modeling version of the Universal Force Field capable of automatic bond creation and breaking.

IM-UFF (Interactive Modeling - UFF) is a generalization of the Universal Force Field that that makes it possible to form and break bonds automatically, mimicking chemical reactions to intuitively build molecules while being guided by physics based interatomic forces.

Please refer to the UFF tutorial and the IM-UFF tutorial.

If you use this interaction model, please cite: L. Jaillet, S. Artemova and S. Redon. IM-UFF: Extending the universal force field for interactive molecular modeling. Journal of Molecular Graphics and Modelling. 2017 Oct;77:350-362.
IM-UFF is an extension for SAMSON,
the integrative platform for molecular design.

To use IM-UFF:

1. Create your free account and choose a molecular design plan
2. Download and install SAMSON on your computer
3. Subscribe to an Expert or Enterprise plan, or just this extension


When you restart SAMSON, the extension will be automatically installed
and will be usable directly from within SAMSON.