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Bio-Design and Manufacturing  2026 Vol.9 No.2 P.292 - 317

http://doi.org/10.1631/bdm.2500199


Strategies for combating central venous catheter-related bacterial infections


Author(s):  Tatiana Padro, Fernando J. Monteiro, Juliana R. Dias, Susana R. Sousa

Affiliation(s):  1. i3SInstituto de Investigao e Inovao em Sade, Universidade do Porto, 4200-135, Porto, Portugal more

Corresponding email(s):   tatiana.padrao@i3s.up.pt, tatiana.padrao@i3s.up.pt

Key Words:  Additive manufacturing, Antimicrobial strategies, Catheter production, Catheter-related infections, Central venous catheters


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Tatiana Padro. Strategies for combating central venous catheter-related bacterial infections[J]. Journal of Zhejiang University Science D, 2026, 9(2): 292 - 317.

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Abstract: 
central venous catheters (CVCs), which play a vital role in medical care and are widely utilized in intensive care units, are highly susceptible to microbial colonization, thus leading to serious catheter-related bloodstream infections and greatly increasing morbidity, mortality, and healthcare costs, accounting for 12%25% of annual mortality in the USA. The corresponding preventive measures include the use of antibiotic and antiseptic coatings, impregnated catheters, and maximally sterile barrier techniques, but they are often ineffective, particularly against biofilm formation and antibiotic-resistant bacteria. This review focuses on strategies for fabricating antimicrobial CVCs, e.g., the use of antifouling materials, antimicrobial nanoparticles (NPs), and surface functionalization, covering both commercially available solutions and those investigated. Additionally, we explore the materials and processing technologies used to fabricate antimicrobial CVCs, emphasizing their advantages and challenges in industrial and clinical applications. Finally, we discuss the potential of inorganic NPs and the origin of their antimicrobial activity, providing insights for future advances in infection prevention that will help improve the patients life quality.

Strategies for combating central venous catheter-related bacterial infections

中心静脉导管(central venous catheters,CVCs)在现代医疗体系中具有重要作用,尤其广泛用于重症监护病房。然而,由于其长期植入及与血液直接接触的特性,CVCs极易发生微生物定植,进而引发严重的导管相关血流感染,显著增加患者发病率、死亡率及医疗负担。据统计,在美国,相关感染约占年度死亡人数的12%~25%。目前的预防措施包括抗生素或抗菌剂涂层导管、药物浸渍导管以及最大化无菌屏障技术等,但在应对生物膜形成和耐药菌感染方面效果有限。因此,开发具有长期稳定抗菌性能的新型CVCs成为研究重点。本综述系统梳理了抗菌型中心静脉导管的构建策略,包括抗污材料应用、抗菌纳米颗粒(nanoparticles,NPs)引入以及导管表面功能化改性等方法,涵盖已商业化产品及仍处于研究阶段的技术方案。同时,本文进一步分析了抗菌CVCs的材料体系与加工工艺,重点讨论其在工业化生产和临床应用中的优势与挑战。此外,本文探讨了无机纳米颗粒的抗菌潜力及其抗菌活性的来源机制,为未来导管相关感染的预防策略提供理论依据和技术参考,有助于提升患者生存质量与临床治疗安全性。
Additive manufacturing; Antimicrobial strategies; Catheter production; Catheter-related infections; Central venous catheters

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