Plasma coloring of Ti via air atmospheric pressure plasma jet for dentistry

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2024-10-30 DOI:10.1016/j.surfcoat.2024.131485

Ching-Fang Hsu , Chun-Yu Ho , Yu-Lin Kuo , Ying-Sui Sun , Yan-Qiao Zhao , Wen-Chien Chen , Hao-Chun Chiu

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Abstract

The aesthetic appeal of titanium dental implants is compromised by unattractive coloration, and extended exposure to bodily fluids can result in the release of ions, potentially causing infection or inflammation. This study introduces a direct method for oxidizing titanium through plasma coloring to enhance biocompatibility. Utilizing a tornado-type atmospheric pressure plasma jet (APPJ) with compressed dry air as the working gas, sub-stoichiometric titanium oxide was produced on sample surfaces. Analysis of reactive oxygen species (ROS) in air plasma via optical emission spectroscopy offers valuable insights into the interaction between plasma and the surface during the oxidation process. Quantification of surface coloration in titanium samples before and after treatment with air-APPJ was conducted using CIE chromaticity diagrams and color temperature analysis. This analytical approach enabled the assessment of thermal and plasma-chemical impacts of plasma coloring on the development of the sub-stoichiometric titanium oxide layer. The resulting oxide layers from the APPJ process exhibited a vibrant golden shade, along with enhanced surface hydrophilicity, improved anticorrosion properties, and enhanced cellular responses.

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通过空气大气压等离子喷射对钛进行等离子着色，用于牙科治疗

钛金属牙科植入物的美观度会因着色不美观而大打折扣，长时间暴露在体液中会导致离子释放，从而可能引起感染或炎症。本研究介绍了一种通过等离子着色氧化钛以提高生物相容性的直接方法。利用以压缩干燥空气为工作气体的龙卷风式大气压力等离子体射流（APPJ），在样品表面生成亚均一氧化钛。通过光学发射光谱分析空气等离子体中的活性氧（ROS），可以深入了解氧化过程中等离子体与表面之间的相互作用。使用 CIE 色度图和色温分析法对钛样品在使用空气-APPJ 处理前后的表面着色情况进行了量化。通过这种分析方法，可以评估等离子着色对亚计量氧化钛层的形成所产生的热影响和等离子化学影响。APPJ 工艺产生的氧化层呈现出鲜艳的金色，同时表面亲水性增强，防腐性能提高，细胞反应增强。

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.