title: Green and Mild Oxidation: An Efficient Strategy toward Water-Dispersible Graphene.
abstract: Scalable fabrication of water-dispersible graphene (W-Gr) is highly desirable yet technically challenging for most practical applications of graphene. Herein, a green and mild oxidation strategy to prepare bulk W-Gr (dispersion, slurry, and powder) with high yield was proposed by fully exploiting structure defects of thermally reduced graphene oxide (TRGO) and oxidizing radicals generated from hydrogen peroxide (H2O2). Owing to the increased carboxyl group from the mild oxidation process, the obtained W-Gr can be redispersed in low-boiling solvents with a reasonable concentration. Benefiting from the modified surface chemistry, macroscopic samples processed from the W-Gr show good hydrophilicity (water contact angle of 55.7°) and excellent biocompatibility, which is expected to be an alternative biomaterial for bone, vessel, and skin regeneration. In addition, the green and mild oxidation strategy is also proven to be effective for dispersing other carbon nanomaterials in a water system.
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences , 865 Changning Road, Shanghai 200050, People's Republic of China.|University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China.
authors.forename: Xiaofei
authors.initials: X
authors.lastname: You
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences , 865 Changning Road, Shanghai 200050, People's Republic of China.|University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China.
authors.forename: Siwei
authors.initials: S
authors.lastname: Yang
authors.affiliation: Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine , Shanghai 200011, People's Republic of China.
authors.forename: Jipeng
authors.initials: J
authors.lastname: Li
authors.affiliation: Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine , Shanghai 200011, People's Republic of China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Deng
authors.affiliation: Zhejiang CHINT Cable Company, Ltd. , Zhejiang 314006, People's Republic of China.
authors.forename: Lianqi
authors.initials: L
authors.lastname: Dai
authors.affiliation: Zhejiang CHINT Cable Company, Ltd. , Zhejiang 314006, People's Republic of China.
authors.forename: Xiong
authors.initials: X
authors.lastname: Peng
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences , 865 Changning Road, Shanghai 200050, People's Republic of China.|University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China.
authors.forename: Haoguang
authors.initials: H
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences , 865 Changning Road, Shanghai 200050, People's Republic of China.
authors.forename: Jing
authors.initials: J
authors.lastname: Sun
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences , 865 Changning Road, Shanghai 200050, People's Republic of China.
authors.forename: Gang
authors.initials: G
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences , 865 Changning Road, Shanghai 200050, People's Republic of China.|University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China.
authors.forename: Peng
authors.initials: P
authors.lastname: He
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences , 865 Changning Road, Shanghai 200050, People's Republic of China.|University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China.
authors.forename: Guqiao
authors.identifier: http://orcid.org/0000-0001-7138-5372
authors.initials: G
authors.lastname: Ding
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences , 865 Changning Road, Shanghai 200050, People's Republic of China.|University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China.
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Xie
keywords: biomaterial; dispersibility; graphene; hydroxyl radical; reduced graphene oxide