Proposing an Affordable Plasma Device for Polymer Surface Modification and Microbial Inactivation

被引:1
作者
Chiappim, William [1 ]
Kodaira, Felipe Vicente de Paula [1 ]
de Castro, Gisele Fatima Soares [2 ]
da Silva, Diego Morais [2 ,3 ]
Tavares, Thayna Fernandes [1 ]
Almeida, Ana Carla de Paula Leite [1 ]
Leal, Bruno Henrique Silva [1 ]
Quade, Antje [4 ]
Koga-Ito, Cristiane Yumi [2 ,5 ]
Kostov, Konstantin Georgiev [1 ]
机构
[1] Sao Paulo State Univ, Sch Engn & Sci, Dept Phys, Lab Plasmas & Applicat, BR-12516410 Guaratingueta, SP, Brazil
[2] Sao Paulo State Univ UNESP, Sao Jose Dos Campos Inst Sci & Technol, Dept Environm Engn & Sci, Appl Oral Hlth Grad Program, BR-12247016 Sao Jose Dos Campos, SP, Brazil
[3] Univ Orleans, CNRS, Grp Rech Sur Energet Milieux Ionises GREMI, UMR 7344, F-45067 Orleans, France
[4] Leibniz Inst Plasma Sci & Technol INP, D-17489 Greifswald, Germany
[5] Sao Paulo State Univ UNESP, Sao Jose Campos Inst Sci & Technol, Dept Environm Engn, Oral Biopathol Grad Program, BR-12245000 Sao Jose Dos Campos, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
cold atmospheric plasma; dielectric barrier discharge; polyethylene; polymer surface modification; Staphylococcus aureus; Candida albicans; Vero cell; cytotoxicity; antimicrobial effects; affordable cost; BARRIER DISCHARGE DBD; COLD-PLASMA; WATER; JET;
D O I
10.3390/molecules29174270
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
This study proposes an affordable plasma device that utilizes a parallel-plate dielectric barrier discharge geometry with a metallic mesh electrode, featuring a straightforward 3D-printed design. Powered by a high-voltage supply adapted from a cosmetic plasma device, it operates on atmospheric air, eliminating the need for gas flux. Surface modification of polyethylene treated with this device was characterized and showed that the elemental composition after 15 min of plasma treatment decreased the amount of C to similar to 80 at% due to the insertion of O (similar to 15 at%). Tested against Candida albicans and Staphylococcus aureus, the device achieved a reduction of over 99% in microbial load with exposure times ranging from 1 to 10 min. Simultaneously, the Vero cell viability remained consistently high, namely between 91% and 96% across exposure times. These results highlight this device's potential for the surface modification of materials and various infection-related applications, boasting affordability and facilitating effective antimicrobial interventions.
引用
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页数:21
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