Struct BiodegradationKinetics 

pub struct BiodegradationKinetics {
    pub rate_constant: f64,
    pub mw_initial: f64,
    pub mw_critical: f64,
    pub d_water: f64,
    pub half_thickness: f64,
}

Polymer biodegradation model (first-order hydrolytic degradation).

Fields

rate_constant: f64

Degradation rate constant k (1/s).

mw_initial: f64

Initial molecular weight (g/mol).

mw_critical: f64

Minimum molecular weight for loss of mechanical function (g/mol).

d_water: f64

Diffusion coefficient of water in polymer (m²/s).

half_thickness: f64

Sample half-thickness (m).

Implementations

impl BiodegradationKinetics

pub fn pla_scaffold() -> Self

PLA (polylactic acid) scaffold defaults.

pub fn molecular_weight(&self, t: f64) -> f64

Molecular weight at time t (s) assuming first-order chain scission.

pub fn time_to_failure(&self) -> f64

Time to reach critical molecular weight (s).

pub fn mass_loss_fraction(&self, t: f64) -> f64

Mass loss fraction at time t (dimensionless 0..1).

Uses Weibull degradation model.

pub fn diffusion_time(&self) -> f64

Diffusion-limited degradation: characteristic time t_d = L^2 / D.

pub fn is_bulk_degradation(&self) -> bool

Assess degradation regime: true = bulk, false = surface.

Surface degradation occurs when diffusion time >> reaction time.

pub fn plga_mass_loss(&self, t: f64, autocatalysis_factor: f64) -> f64

PLGA copolymer degradation with autocatalysis (Gopferich model approximation).

Trait Implementations

impl Clone for BiodegradationKinetics

fn clone(&self) -> BiodegradationKinetics

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BiodegradationKinetics

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.