Investigating the tribological and biological performance of covalently grafted chitosan coatings on Co–Cr–Mo alloy

Liguo Qin; Xinan Feng; Mahshid Hafezi; Yali Zhang; Junde Guo; Guangneng Dong; Yuanbin Qin

doi:10.1016/j.triboint.2018.06.018

Investigating the tribological and biological performance of covalently grafted chitosan coatings on Co–Cr–Mo alloy

Liguo Qin
, Xinan Feng
, Mahshid Hafezi
, Yali Zhang
, Junde Guo
, Guangneng Dong
, Yuanbin Qin

School of Mechanical Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

A layer-by-layer deposition technique with grafting chitosan on the Co-Cr-Mo alloy was developed. The performance of tribology and biocompatibility were investigated under simulated conditions. Wettability of coating surface was super hydrophilic and the surface was in positive charge under the neutral solution, which was favored in water-based lubricating and adhesion of cells. By pin-on-disk tests, the chitosan coating surface exhibited lower friction coefficient under various sliding speed as compared with the uncoated substratum. A wear rate of 1.1 × 10⁻⁷mm³/Nm was detected, which was only one seventh of uncoated surfaces. Hypothetically illuminating the mechanism of antifriction is able to lead for better wear resistance. Co-culturing with osteoblast cells showed that coating had good benefits in the proliferation of osteoblast cells.

Original language	English
Pages (from-to)	302-312
Number of pages	11
Journal	Tribology International
Volume	127
DOIs	https://doi.org/10.1016/j.triboint.2018.06.018
State	Published - Nov 2018

Keywords

Bioactive
Chitosan coatings
Co–Cr–Mo alloy
Tribology

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10.1016/j.triboint.2018.06.018

Cite this

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title = "Investigating the tribological and biological performance of covalently grafted chitosan coatings on Co–Cr–Mo alloy",

abstract = "A layer-by-layer deposition technique with grafting chitosan on the Co-Cr-Mo alloy was developed. The performance of tribology and biocompatibility were investigated under simulated conditions. Wettability of coating surface was super hydrophilic and the surface was in positive charge under the neutral solution, which was favored in water-based lubricating and adhesion of cells. By pin-on-disk tests, the chitosan coating surface exhibited lower friction coefficient under various sliding speed as compared with the uncoated substratum. A wear rate of 1.1 × 10−7mm3/Nm was detected, which was only one seventh of uncoated surfaces. Hypothetically illuminating the mechanism of antifriction is able to lead for better wear resistance. Co-culturing with osteoblast cells showed that coating had good benefits in the proliferation of osteoblast cells.",

keywords = "Bioactive, Chitosan coatings, Co–Cr–Mo alloy, Tribology",

author = "Liguo Qin and Xinan Feng and Mahshid Hafezi and Yali Zhang and Junde Guo and Guangneng Dong and Yuanbin Qin",

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year = "2018",

month = nov,

doi = "10.1016/j.triboint.2018.06.018",

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T1 - Investigating the tribological and biological performance of covalently grafted chitosan coatings on Co–Cr–Mo alloy

AU - Qin, Liguo

AU - Feng, Xinan

AU - Hafezi, Mahshid

AU - Zhang, Yali

AU - Guo, Junde

AU - Dong, Guangneng

AU - Qin, Yuanbin

PY - 2018/11

Y1 - 2018/11

N2 - A layer-by-layer deposition technique with grafting chitosan on the Co-Cr-Mo alloy was developed. The performance of tribology and biocompatibility were investigated under simulated conditions. Wettability of coating surface was super hydrophilic and the surface was in positive charge under the neutral solution, which was favored in water-based lubricating and adhesion of cells. By pin-on-disk tests, the chitosan coating surface exhibited lower friction coefficient under various sliding speed as compared with the uncoated substratum. A wear rate of 1.1 × 10−7mm3/Nm was detected, which was only one seventh of uncoated surfaces. Hypothetically illuminating the mechanism of antifriction is able to lead for better wear resistance. Co-culturing with osteoblast cells showed that coating had good benefits in the proliferation of osteoblast cells.

AB - A layer-by-layer deposition technique with grafting chitosan on the Co-Cr-Mo alloy was developed. The performance of tribology and biocompatibility were investigated under simulated conditions. Wettability of coating surface was super hydrophilic and the surface was in positive charge under the neutral solution, which was favored in water-based lubricating and adhesion of cells. By pin-on-disk tests, the chitosan coating surface exhibited lower friction coefficient under various sliding speed as compared with the uncoated substratum. A wear rate of 1.1 × 10−7mm3/Nm was detected, which was only one seventh of uncoated surfaces. Hypothetically illuminating the mechanism of antifriction is able to lead for better wear resistance. Co-culturing with osteoblast cells showed that coating had good benefits in the proliferation of osteoblast cells.

KW - Bioactive

KW - Chitosan coatings

KW - Co–Cr–Mo alloy

KW - Tribology

UR - https://www.scopus.com/pages/publications/85048878431

U2 - 10.1016/j.triboint.2018.06.018

DO - 10.1016/j.triboint.2018.06.018

M3 - 文章

AN - SCOPUS:85048878431

SN - 0301-679X

VL - 127

SP - 302

EP - 312

JO - Tribology International

JF - Tribology International

ER -

Investigating the tribological and biological performance of covalently grafted chitosan coatings on Co–Cr–Mo alloy

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Keywords

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