Effect of astaxanthin concentration on the wear properties of castor oil and wear rate prediction using non-linear regression by pin-on-disk tests. Superficies y Vacio [Internet]. 2026 Oct. 30 [cited 2026 Nov. 1];39:261001. Available from: https://superficiesyvacio.smctsm.org.mx/index.php/SyV/article/view/2026_syv39_1-261001