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Article

Microstructural and Tribological Properties of a Dopamine Hydrochloride and Graphene Oxide Coating Applied to Multifilament Surgical Sutures

1
College of Textile & Clothing, Institute of Functional Textiles and Advanced Materials, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center of Marine Biomass Fibers Materials and Textiles of Shandong Province, Qingdao University, Qingdao 266071, China
2
Shandong Jiejing Group, Rizhao 276800, China
3
School of Chemistry and Chemical Engineering, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
*
Authors to whom correspondence should be addressed.
Polymers 2020, 12(8), 1630; https://doi.org/10.3390/polym12081630
Received: 23 June 2020 / Revised: 17 July 2020 / Accepted: 21 July 2020 / Published: 22 July 2020
(This article belongs to the Special Issue Polymer Processing and Surfaces)
With the development of fine surgery and desire for low-injury methods, the frictional properties of surgical sutures are one of the crucial factors that can cause damage to tissue, especially for some fragile and sensitive human tissues such as the eyeball. In this study, dopamine hydrochloride and graphene oxide were used as external application agents to prepare a biological coating for the surface of multifilament surgical sutures. The effects of this biocoating on the surface morphology, chemical properties, mechanical properties, and tribological properties of surgical sutures were studied. The friction force and the coefficient of friction of surgical sutures penetrating through a skin substitute were evaluated using a penetration friction apparatus and a linear elastic model. The tribological mechanism of the coating on the multifilament surgical sutures was investigated according to the results of the tribological test. The results showed that there were uniform dopamine and graphene oxide films on the surface of the surgical sutures, and that the fracture strength and yield stress of the coated sutures both increased. The surface wettability of the surgical sutures was improved after the coating treatment. The friction force and the coefficient of friction of the multifilament surgical sutures with the dopamine hydrochloride and graphene oxide coating changed little compared to those of the untreated multifilament surgical sutures. View Full-Text
Keywords: surface coating; dopamine hydrochloride; graphene oxide; surgical suture; friction surface coating; dopamine hydrochloride; graphene oxide; surgical suture; friction
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MDPI and ACS Style

Zhang, G.; Hu, J.; Ren, T.; Zhu, P. Microstructural and Tribological Properties of a Dopamine Hydrochloride and Graphene Oxide Coating Applied to Multifilament Surgical Sutures. Polymers 2020, 12, 1630. https://doi.org/10.3390/polym12081630

AMA Style

Zhang G, Hu J, Ren T, Zhu P. Microstructural and Tribological Properties of a Dopamine Hydrochloride and Graphene Oxide Coating Applied to Multifilament Surgical Sutures. Polymers. 2020; 12(8):1630. https://doi.org/10.3390/polym12081630

Chicago/Turabian Style

Zhang, Gangqiang, Jiewen Hu, Tianhui Ren, and Ping Zhu. 2020. "Microstructural and Tribological Properties of a Dopamine Hydrochloride and Graphene Oxide Coating Applied to Multifilament Surgical Sutures" Polymers 12, no. 8: 1630. https://doi.org/10.3390/polym12081630

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