Cardoso-Daodu, Ibilola M., et al. “Preparation and Purification of Calcein Loaded Temperature-Sensitive Liposomes: Http: www.doi.org 10.26538 Tjnpr V6i9.6”. Tropical Journal of Natural Product Research (TJNPR), vol. 6, no. 9, Sept. 2022, pp. 1385-90, https://tjnpr.org/index.php/home/article/view/1254.