Orthokeratology lens care: Surface treatment by an atmospheric pulsed microwave air plasma jet

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2024-11-14 DOI:10.1016/j.apsusc.2024.161806

Sile Chen, Xinrui Chen, Jiexin Hu, Chao Wang, Zhaoquan Chen, Ping Li

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Abstract

Orthokeratology lens (OK lens) is one of the effective tools for myopia correction in adolescents. Currently, the OK lens is maintained by surface treatment of the atmospheric argon plasma jet for wearing comfort, sterilization and cleaning. In order to increase the concentration of reactive species and the convenience of plasma device, an atmospheric pulsed microwave air plasma jet is developed and used to treat the OK lens. The electrical and optical characteristics of the microwave air plasma jet are evaluated by the discharge images, optical emission spectrum (OES), gas temperature and electron density, while the surface physical and chemical characteristics of OK lens are studied by the surface wettability, scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). The results indicate that the surface wettability of OK lens increases after plasma treatment, while no significant changes in surface morphology are observed. The increase of oxygen-containing groups, decrease of fluorine-containing groups and formation of silicates on the lens surface are the main reasons for the enhancement of hydrophilicity. Surface treatment by pulsed microwave air plasma jet is a promising method for OK lens care, which provids a technical approach for portable lens care devices.

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角膜塑形镜护理：用大气脉冲微波空气等离子喷射器进行表面处理

角膜塑形镜（OK镜）是矫正青少年近视的有效工具之一。目前，为了佩戴舒适、杀菌和清洁，OK 镜都是通过大气氩等离子喷射器进行表面处理。为了提高反应物的浓度和等离子装置的便利性，开发了大气脉冲微波空气等离子射流，并用于处理 OK 镜片。通过放电图像、光学发射光谱（OES）、气体温度和电子密度评估了微波空气等离子体射流的电学和光学特性，并通过表面润湿性、扫描电子显微镜（SEM）、X 射线光电子能谱（XPS）和傅立叶变换红外光谱（FTIR）研究了 OK 镜片的表面物理和化学特性。结果表明，经等离子处理后，OK镜片的表面润湿性增加，但表面形貌未发生显著变化。镜片表面含氧基团的增加、含氟基团的减少和硅酸盐的形成是亲水性增强的主要原因。利用脉冲微波空气等离子体喷射进行表面处理是一种很有前途的 OK 镜片护理方法，它为便携式镜片护理设备提供了一种技术途径。

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.