Development of an antibacterial polypropylene/polyurethane composite membrane for invisible orthodontics application

Feng Yang; Feng Yang; Feng Yang; Chenyi Wu; Yuanzhang Jiang; Yuanzhang Jiang; Lin Tan; Lin Tan; Rui Shu

doi:10.3389/fbioe.2023.1233398

Frontiers in Bioengineering and Biotechnology (Jul 2023)

Development of an antibacterial polypropylene/polyurethane composite membrane for invisible orthodontics application

Feng Yang,
Feng Yang,
Feng Yang,
Chenyi Wu,
Yuanzhang Jiang,
Yuanzhang Jiang,
Lin Tan,
Lin Tan,
Rui Shu

Affiliations

Feng Yang: State Key Laboratory of Oral Diseases, Department of Pediatric Dentistry, West China School of Stomatology, Sichuan University, Chengdu, China
Feng Yang: State Key Laboratory of Polymer Materials Engineering, College of Biomass Science and Engineering, Sichuan University, Chengdu, China
Feng Yang: Research Center for Fiber Science and Engineering Technology, Yibin Institute of Industrial Technology, Sichuan University, Yibin, China
Chenyi Wu: State Key Laboratory of Oral Diseases, Department of Pediatric Dentistry, West China School of Stomatology, Sichuan University, Chengdu, China
Yuanzhang Jiang: State Key Laboratory of Polymer Materials Engineering, College of Biomass Science and Engineering, Sichuan University, Chengdu, China
Yuanzhang Jiang: Research Center for Fiber Science and Engineering Technology, Yibin Institute of Industrial Technology, Sichuan University, Yibin, China
Lin Tan: State Key Laboratory of Polymer Materials Engineering, College of Biomass Science and Engineering, Sichuan University, Chengdu, China
Lin Tan: Research Center for Fiber Science and Engineering Technology, Yibin Institute of Industrial Technology, Sichuan University, Yibin, China
Rui Shu: State Key Laboratory of Oral Diseases, Department of Pediatric Dentistry, West China School of Stomatology, Sichuan University, Chengdu, China

DOI: https://doi.org/10.3389/fbioe.2023.1233398
Journal volume & issue: Vol. 11

Abstract

Read online

In virtue of the advantages, such as aesthetics, designability, convenient removal, and comfortable experience, invisible orthodontics (IO) have been widely recognized and accepted by the public. However, most of the membranes currently used for IO only meet the requirement of shape retention. Other vital functions, like antibacterial and antifouling activities, are neglected. Herein, antibacterial composite membranes (ACMs) containing polypropylene (PP), thermoplastic polyurethane (TPU) and poly (hexamethylene guanidine) hydrochloride-sodium stearate (PHMG-SS) were facilely manufactured through the hot-pressing membrane forming technology. ACMs were conferred with favorable transparency (∼70% in the visible light range) and excellent antibacterial ability. Experiment results demonstrated that bactericidal rates of ACMs against Staphylococcus aureus, Escherichia coli and Streptococcus mutans were larger than 99.99%. Noticeably, the amount of protein adhered on the surface of ACMs was only 28.1 μg/cm2, showing ideal antifouling performance. Collectively, the mutifunctional ACMs in the study are expected to be prominent alternatives for existing IO.

Published in Frontiers in Bioengineering and Biotechnology

ISSN: 2296-4185 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology: Biotechnology
Website: http://www.frontiersin.org/bioengineering_and_biotechnology

About the journal

Abstract

Keywords