Calcium oxalate crystallization process

Calcium oxalate crystallization is the physicochemical process by which calcium ions (Ca²⁺) and oxalate ions (C₂O₄²⁻) combine to form insoluble calcium oxalate crystals, which can occur in biological and synthetic systems[6]. In humans, aberrant crystallization leads to kidney stone (urolithiasis) formation, with critical steps involving nucleation, crystal growth, aggregation, and retention. The process is influenced by urine concentration, pH, supersaturation, presence of macromolecular and small molecule inhibitors (such as citrate and certain proteins), and other factors. It is a major topic in biomineralization research and pathological mineral deposition[3][4][1][2].

Other names

Calcium oxalate crystallizationCaOx crystallizationCalcium oxalate formation

Inhibition of crystal nucleation (by citrate, polyphosphates, phosphonates); Surface binding/blocking of crystal faces to inhibit growth; Chelation of ions (magnesium, citrate).