title: NH2+ implantations induced superior hemocompatibility of carbon nanotubes.
abstract: NH2+ implantation was performed on multiwalled carbon nanotubes (MWCNTs) prepared by chemical vapor deposition. The hemocompatibility of MWCNTs and NH2+-implanted MWCNTs was evaluated based on in vitro hemolysis, platelet adhesion, and kinetic-clotting tests. Compared with MWCNTs, NH2+-implanted MWCNTs displayed more perfect platelets and red blood cells in morphology, lower platelet adhesion rate, lower hemolytic rate, and longer kinetic blood-clotting time. NH2+-implanted MWCNTs with higher fluency of 1 × 1016 ions/cm2 led to the best thromboresistance, hence desired hemocompatibility. Fourier transfer infrared and X-ray photoelectron spectroscopy analyses showed that NH2+ implantation caused the cleavage of some pendants and the formation of some new N-containing functional groups. These results were responsible for the enhanced hemocompatibility of NH2+-implanted MWCNTs.
authors: College of Physics and Electronic Information Science, Tianjin Normal University, Tianjin, 300387, China. dejunli@mail.tjnu.edu.cn.
authors: Meixian
authors: M
authors: Guo
authors: Dejun
authors: D
authors: Li
authors: Mengli
authors: M
authors: Zhao
authors: Yiteng
authors: Y
authors: Zhang
authors: Xiangyun
authors: X
authors: Deng
authors: Dongsheng
authors: D
authors: Geng
authors: Ruying
authors: R
authors: Li
authors: Xueliang
authors: X
authors: Sun
authors: Hanqing
authors: H
authors: Gu
authors: Rongxin
authors: R
authors: Wan
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