Study of the bactericidal properties of polylactic acid-based 3D filament

IF 3.6 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2025-03-21 DOI:10.1002/vnl.22216

Anyul López-Camacho, María José Grande, Daniel Carazo-Álvarez, M. Dolores La Rubia

{"title":"Study of the bactericidal properties of polylactic acid-based 3D filament","authors":"Anyul López-Camacho, María José Grande, Daniel Carazo-Álvarez, M. Dolores La Rubia","doi":"10.1002/vnl.22216","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>The spread of microorganisms is a global challenge for health, the environment, and the economy. Incorporating antibacterial agents into polymeric materials, such as polylactic acid (PLA), is an effective strategy. This study compared the incorporation of metallic (silver) and photocatalytic (titanium dioxide) fillers in 3D printed objects, evaluating their thermal stability, dispersion, crystalline structure, and antibacterial effectiveness. Various characterization techniques were used, including X-ray microfluorescence (μFRX), thermal stability, scanning electron microscopy (SEM), transmission electron microscopy (TEM), FT-IR spectroscopy, X-Ray diffraction (XRD), UV spectroscopy, X-ray photoelectron spectroscopy (XPS), and agent migration tests, along with antibacterial efficacy. The UV-activated photocatalytic materials showed a durable 99.99% efficacy against <i>S. aureus</i> and <i>E. coli</i>, emerging as a promising material for applications in medical, food, textile, electronic, and transportation sectors, enhancing hygiene through additive manufacturing.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n \n <ul>\n \n \n <li>Composite materials were made for additive manufacturing in an industrial setting.</li>\n \n \n <li>Antibacterial activity was tested on surfaces against <i>E. coli</i> and <i>S. aureus</i>.</li>\n \n \n <li>A comparison of the antibacterial efficacy of metallic and photocatalytic loads is done.</li>\n \n \n <li>Photocatalytic TiO<sub>2</sub> loads with UV activation offer microbial benefits for manufacturing.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"31 5","pages":"1151-1171"},"PeriodicalIF":3.6000,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://4spepublications.onlinelibrary.wiley.com/doi/epdf/10.1002/vnl.22216","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Vinyl & Additive Technology","FirstCategoryId":"88","ListUrlMain":"https://4spepublications.onlinelibrary.wiley.com/doi/10.1002/vnl.22216","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

The spread of microorganisms is a global challenge for health, the environment, and the economy. Incorporating antibacterial agents into polymeric materials, such as polylactic acid (PLA), is an effective strategy. This study compared the incorporation of metallic (silver) and photocatalytic (titanium dioxide) fillers in 3D printed objects, evaluating their thermal stability, dispersion, crystalline structure, and antibacterial effectiveness. Various characterization techniques were used, including X-ray microfluorescence (μFRX), thermal stability, scanning electron microscopy (SEM), transmission electron microscopy (TEM), FT-IR spectroscopy, X-Ray diffraction (XRD), UV spectroscopy, X-ray photoelectron spectroscopy (XPS), and agent migration tests, along with antibacterial efficacy. The UV-activated photocatalytic materials showed a durable 99.99% efficacy against S. aureus and E. coli, emerging as a promising material for applications in medical, food, textile, electronic, and transportation sectors, enhancing hygiene through additive manufacturing.

Highlights

Composite materials were made for additive manufacturing in an industrial setting.
Antibacterial activity was tested on surfaces against E. coli and S. aureus.
A comparison of the antibacterial efficacy of metallic and photocatalytic loads is done.
Photocatalytic TiO₂ loads with UV activation offer microbial benefits for manufacturing.

Abstract Image

查看原文本刊更多论文

聚乳酸基三维长丝的杀菌性能研究

微生物的传播是对健康、环境和经济的全球性挑战。在聚乳酸（PLA）等高分子材料中加入抗菌剂是一种有效的策略。这项研究比较了金属（银）和光催化（二氧化钛）填料在3D打印物体中的掺入，评估了它们的热稳定性、分散性、晶体结构和抗菌效果。采用了多种表征技术，包括x射线微荧光（μFRX）、热稳定性、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、傅里叶红外光谱（FT-IR）、x射线衍射（XRD）、紫外光谱（UV）、x射线光电子能谱（XPS）、药物迁移测试以及抗菌效果。紫外光活化光催化材料对金黄色葡萄球菌和大肠杆菌具有99.99%的持久活性，在医疗、食品、纺织、电子和交通运输等领域具有广阔的应用前景，通过增材制造提高卫生水平。在工业环境中为增材制造制造复合材料。测定了其表面对大肠杆菌和金黄色葡萄球菌的抑菌活性。比较了金属负载和光催化负载的抗菌效果。具有紫外线活化的光催化TiO2负载为制造提供了微生物效益。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Vinyl & Additive Technology 工程技术-材料科学：纺织

CiteScore

5.40

自引率

14.80%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.