Issue 35, 2017, Issue in Progress

Laser-textured surface storing a carbon dots/poly(ethylene glycol)/chitosan gel with slow-release lubrication effect

Abstract

Arthroplasty presents wear problems because body fluid, as the only lubricant, has poor performance. However, normal lubricants become diluted by body fluid and then are absorbed by the human body. To prolong the lubricant's effectiveness, this study prepared a carbon dots/poly(ethylene glycol)/chitosan (CDs/PEG/CS) composite gel, which, stored in laser textures, could slowly release the lubricant. Laser-textured surfaces can simultaneously store CDs/PEG/CS gel and wear debris. In this study, CDs, PEG and chitosan (CS), which have biocompatibility and biodegradability properties, can be used in the human body. CDs/PEG/CS gel was added to the laser textures and had excellent slow-release properties, which became better under pressure. Meanwhile, carbon dots (CDs) associated with poly(ethylene glycol) (PEG) via hydrogen bond formed an excellent lubricant, which led to the good lubrication effect. This study provides a new and green approach to enhance the tribological performance of artificial joints.

Graphical abstract: Laser-textured surface storing a carbon dots/poly(ethylene glycol)/chitosan gel with slow-release lubrication effect

Supplementary files

Article information

Article type
Paper
Submitted
26 Feb 2017
Accepted
05 Apr 2017
First published
18 Apr 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 21600-21606

Laser-textured surface storing a carbon dots/poly(ethylene glycol)/chitosan gel with slow-release lubrication effect

H. Lu, S. Ren, P. Zhang, J. Guo, J. Li and G. Dong, RSC Adv., 2017, 7, 21600 DOI: 10.1039/C7RA02387A

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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