ToolHub

Biophysics Calculator

Perform advanced biophysics calculations including molecular diffusion, protein-ligand binding, and ion channel currents. Analyze biological systems with accurate equations, unit conversions, and interactive visualizations.

Perform advanced biophysics calculations including molecular diffusion, protein-ligand binding, and ion channel currents. Analyze biological systems with accurate equations, unit conversions, and interactive visualizations.

Calculation Modes

  • Molecular Diffusion: Calculates diffusion coefficient and displacement using particle size and viscosity
  • Protein-Ligand Binding: Computes binding affinity, free energy, and fraction bound
  • Ion Channel Current: Determines membrane potential effects and ionic current flow

Key Formulas

  • D = kBT / (6πηr)
  • ΔG = −RT ln(1 / Kd)
  • θ = [L] / ([L] + Kd)
  • V = (RT/F) ln(...)

Use Cases

  • • Studying molecular diffusion in biological systems
  • • Analyzing protein-ligand interactions
  • • Understanding ion transport across membranes
  • • Research and academic biophysics calculations

By combining multiple models in a single interface, this tool helps researchers and students explore complex biological systems with ease and precision.

Molecular Diffusion Inputs