Printability and Performance Metrics of New-Generation Multifunctional PMMA/Antibacterial Blend Nanocomposites in MEX Additive Manufacturing

Polymers, Год журнала: 2025, Номер 17(3), С. 410 - 410

Опубликована: Фев. 4, 2025

Poly(methyl methacrylate) (PMMA) is a thermoplastic widely utilized in civilian-, defense-, and medicine-related applications. Therefore, inducing antibacterial properties an additional asset when infection control prioritized. To counter this, PMMA was mixed, for the first time, with agents (antibacterial blend nanopowder, AP) to curb bacterial proliferation therefore reduce chances of infection. The reinforcing efficacy also assessed. Nanocomposites were developed various nanopowder concentrations 3D printing material extrusion (MEX). PMMA/AP nanocomposites evaluated their mechanical rheological properties, thermal stability, morphological, structural, chemical characteristics, resistance (against Staphylococcus aureus Escherichia coli (E. Coli) using well diffusion method). effect on quality metrics, such as geometrical accuracy pores 3D-printed structure examined micro-computed tomography. modified had improved increased tensile (~20% increase at 2 wt.%) flexural strength (~10.8% 4 wt.%), while having strong against mild E. Coli. Such improvements add expanding portfolio biomaterials, use demanding defense sector medical field.

Язык: Английский

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Fucoidan and its derivatives: From extraction to cutting-edge biomedical applications

Carbohydrate Polymers, Год журнала: 2025, Номер 357, С. 123468 - 123468

Опубликована: Март 1, 2025

Язык: Английский

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Digital Light Processing 3D Printing high-fidelity and versatile hydrogel via in-situ phase separation

Journal of Materials Chemistry B, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Recently, digital light processing (DLP) 3D printing has garnered significant interest for fabricating high-fidelity hydrogels. However, the intrinsic weak and loose network of hydrogels, coupled with uncontrollable projection, leads to low resolution restricts their broader applications. Herein, we propose a straightforward DLP strategy utilizing in situ phase separation produce high-fidelity, high-modulus, biocompatible By selecting acrylamide monomers poor compatibility within polyvinyl pyrrolidone (PVP) during polymerization, create phase-separated domains polyacrylamide (PAM) that effectively inhibit ultraviolet (UV) transmission. This regulation UV distribution results anhydrous inks exceptional properties: ultra-high (1.5 μm), modulus (1043 MPa), high strength (70.0 MPa). Upon hydration, hydrogels decrease approximately 4000 times those gels, exhibiting mechano-moisture sensitivity suitable actuator Additionally, 3D-printed featuring micro-scale structures, demonstrate good biocompatibility facilitate nutrient transport cell proliferation. versatile paves way fabrication multifunctional

Язык: Английский

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Natural macromolecule-based bioinks for 3D bioprinting: A systematic review of composition, physicochemical characterization, and biomedical applications

Bioprinting, Год журнала: 2025, Номер unknown, С. e00407 - e00407

Опубликована: Март 1, 2025

Язык: Английский

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