Zhang, L. X., M. Zhu, L. M. Guo, L. . Li, and J. L. Shi. “Bilirubin Adsorption Property of Mesoporous Silica and Amine-Grafted Mesoporous Silica”. Nano-Micro Letters, vol. 1, no. 1, Oct. 2009, pp. 14-18, doi:10.1007/BF03353599.