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Journal : Multidisciplinary Innovations and Research in Applied Engineering

Antimicrobial Urinary Catheters: Fabrication Strategies and Their Role in Preventing Catheter-Associated Urinary Tract Infections - A Narrative Review Priwintoko, Baharudin; Anggiri, Refonda Rias; Hastuti, Siwi
Multidisciplinary Innovations and Research in Applied Engineering Vol. 2 No. 2 (2025)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/rmfgdt72

Abstract

Catheter-associated urinary tract infections (CAUTIs) are among the most frequent healthcare-associated infections, primarily caused by biofilm formation on catheter surfaces. This narrative review summarizes recent progress in antimicrobial urinary catheter development, focusing on substrate materials, functional agents, and fabrication strategies. Common substrates such as silicone, polyurethane, and thermoplastic elastomers provide biocompatibility and durability but require modification to achieve antimicrobial performance. Strategies including surface coatings (e.g., dip- and spray-coating, sol–gel, and layer-by-layer deposition), impregnation, composite blending, and hybrid designs have been investigated to deliver sustained antimicrobial release, antifouling resistance, and improved patient comfort. Coating-based methods enable localized control of active agents, while bulk modifications ensure durability despite surface wear. Emerging approaches highlight multifunctional systems that integrate antimicrobial, antifouling, and lubricious properties, supported by precision techniques such as nanostructured coatings and bioinspired surface engineering. By linking material selection with fabrication design, this review underscores the need for scalable and cost-effective strategies that combine long-term antimicrobial protection, mechanical integrity, and regulatory compliance. Future research directions include hybrid fabrication methods, sustainable manufacturing, and clinical translation to reduce the global burden of CAUTIs.
Static and Dynamic Performance Evaluation of Three-Wheeled Vehicle Frames Based on Aluminum and High-Grade Steel Using Finite Element Simulation Yuzif, Rahman; Andiyanto, Andiyanto; priwintoko, baharudin
Multidisciplinary Innovations and Research in Applied Engineering Vol. 2 No. 2 (2025)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/rfvn0v81

Abstract

The increasing demand for energy efficiency and lightweight transportation has encouraged the development of three-wheeled vehicles with optimized structural frames. This study evaluates the static and dynamic performance of three-wheeled vehicle frames using three high-performance materials Aluminium 7075-T6, S690 steel, and ASTM A572 HSLA 60 steel. Finite Element Analysis (FEA) was conducted with Altair HyperWorks to analyze stress distribution, deformation, safety factor, and natural frequency response. Static analysis results indicate that all materials are structurally safe, with S690 steel showing the highest stiffness and safety factor, while Aluminium 7075-T6 provides the greatest strength-to-weight efficiency despite higher deformation. ASTM A572 HSLA 60 offers moderate performance as a cost-effective alternative. Modal analysis reveals similar natural frequency ranges (1.5–3.2 Hz) across all materials, indicating that dynamic behavior is more influenced by geometry than material properties. The findings highlight the trade-off between strength, stiffness, and weight, suggesting Aluminium 7075-T6 as the optimal choice for lightweight and energy-efficient applications, while S690 steel is preferable for heavy-duty requirements. Overall, this research emphasizes a holistic approach in material selection for three-wheeled vehicle frames to balance mechanical strength, vibration characteristics, and energy efficiency.