Failure of calcium gluconate internal gelation for prolonging drug release from alginate–chitosanbased ocular insert of atenolol. Journal of Pharmaceutical Negative Results, [S. l.], v. 1, n. 2, p. 35–39, 2010. Disponível em: https://pnrjournal.com/index.php/home/article/view/13.. Acesso em: 19 jun. 2026.