Biophysics & Medical Physics
8 terms
Bio-optics
Biophysics & Medical Physics
Scattering Coefficient μ_s (cm⁻¹) & Absorption μ_a (cm⁻¹)
The study of light interaction with biological tissues and the development of optical diagnostic and therapeutic instruments.
Radiative Transport Equation (RTE) in Turbid Tissues
Bioenergetics
Biophysics & Medical Physics
kJ/mol (Gibbs Free Energy)
The branch of biophysics and biochemistry studying energy transformation, transfer, and coupling mechanisms in living organisms.
ΔG = ΔH - T ΔS, ΔG'° = -R T ln K_eq
Bioimpedance
Biophysics & Medical Physics
Ω (Ohms)
The measure of a biological tissue's opposition to the flow of electric alternating current.
Z = R + i X_c = √(R² + X_c²)
Biological Transducers
Biophysics & Medical Physics
mV / pA (Receptor Signal Output)
Specialized sensory receptor cells that convert external physical or chemical stimuli into graded bioelectrical signals.
Transduction: Physical Stimulus Energy → Receptor Potential (mV)
Bioluminescence
Biophysics & Medical Physics
Photons/s (Bioluminescent Flux)
The enzymatic production and emission of light by living organisms through chemical reactions converting ATP into photon energy.
Luciferin + O₂ + ATP → Oxyluciferin + AMP + PPi + h ν (Light)
Biomechanics of Gait
Biophysics & Medical Physics
m/s (Walking Speed) & Ground Reaction Force (N)
The quantitative analysis of human locomotion mechanics, muscle force coordination, and ground reaction forces during walking or running.
Center of Mass Inverted Pendulum Energy Exchange (T ↔ V)
Bone Mechanics
Biophysics & Medical Physics
MPa / GPa (Tensile & Compressive Strength)
The study of mechanical structural behavior, anisotropy, and remodeling of bone tissue under physical loads.
Stress σ = F / A, Young's Modulus E_cortical ≈ 18 GPa
Brachytherapy
Biophysics & Medical Physics
Gy/h (High or Low Dose Rate)
An internal radiation therapy technique where sealed radioactive sources are placed directly inside or adjacent to a tumor.
Inverse Square Dose Falloff: D(r) ∝ 1 / r²