The ex vivo and in vivo biological performances of graphene oxide and the impact of surfactant on graphene oxide's biocompatibility  

作　　者：Guangbo Qu Xiaoyan Wang Qian Liu Rui Liu Nuoya Yin Juan Ma Liqun Chen Jiuyang He Sijin Liu Guibin Jiang 

机构地区：[1]State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences [2]Department of Biomedical Engineering,Tufts University,Medford,Massachusetts 02155,USA

出　　处：《Journal of Environmental Sciences》2013年第5期873-881,共9页环境科学学报（英文版）

基　　金：supported by the Knowledge Innovative Program of the Chinese Academy of Sciences (No.KZCX2-EW-404);the National Natural Science Foundation of China (No:21207152,20921063,21177151)

摘　　要：Graphene oxide（GO）displays promising properties for biomedical applications including drug delivery and cancer therapeutics.However,GO exposure also raises safety concerns such as potential side effects on health.Here,the biological effects of GO suspended in phosphate buffered saline（PBS）with or without 1% nonionic surfactant Tween 80 were investigated.Based on the ex vivo experiments,Tween 80 significantly affected the interaction between GO and peripheral blood from mice.GO suspension in PBS tended to provoke the aggregation of diluted blood cells,which could be prevented by the addition of Tween 80.After intravenous administration,GO suspension with or without 1% Tween 80 was quickly eliminated by the mononuclear phagocyte system.Nevertheless,GO suspension without Tween 80 showed greater accumulation in lungs than that containing 1% Tween 80.In contrast,less GO was found in livers for GO suspension compared to Tween 80 assisted GO suspension.Organs including hearts,livers,lungs,spleens,kidneys,brains,and testes did not reveal histological alterations.The indexes of peripheral blood showed no change upon GO exposure.Our results together demonstrated that Tween 80 could greatly alter GO＇s biological performance and determine the pattern of its biodistribution in mice.Graphene oxide（GO）displays promising properties for biomedical applications including drug delivery and cancer therapeutics.However,GO exposure also raises safety concerns such as potential side effects on health.Here,the biological effects of GO suspended in phosphate buffered saline（PBS）with or without 1% nonionic surfactant Tween 80 were investigated.Based on the ex vivo experiments,Tween 80 significantly affected the interaction between GO and peripheral blood from mice.GO suspension in PBS tended to provoke the aggregation of diluted blood cells,which could be prevented by the addition of Tween 80.After intravenous administration,GO suspension with or without 1% Tween 80 was quickly eliminated by the mononuclear phagocyte system.Nevertheless,GO suspension without Tween 80 showed greater accumulation in lungs than that containing 1% Tween 80.In contrast,less GO was found in livers for GO suspension compared to Tween 80 assisted GO suspension.Organs including hearts,livers,lungs,spleens,kidneys,brains,and testes did not reveal histological alterations.The indexes of peripheral blood showed no change upon GO exposure.Our results together demonstrated that Tween 80 could greatly alter GO＇s biological performance and determine the pattern of its biodistribution in mice.

关 键 词：graphene oxide biological performance nonionic surfactant Tween 80 intravenous injection 

分 类 号：O613.71[理学—无机化学] X171.5[理学—化学]