Thermophysical properties and Optimization of modified palm Oil-Amine reinforced biocomposites for lightweight and insulating applications

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 314, P. 118012 - 118012

Published: Jan. 16, 2025

Language: Английский

Design, synthesis, and characterization of polymer‐hydrogel composite vascular grafts using double‐expanded polytetrafluoroethylene to achieve enhanced mechanical and biological properties

Polymer Engineering and Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Abstract Expanded polytetrafluoroethylene (ePTFE) is commonly used for vascular grafts. However, its application as small‐diameter grafts has been hampered due to problems such thrombosis and restenosis stemming from mismatched mechanical properties lack of endothelialization. As an effort fabricate with akin natural blood vessels, extra expansion step in the fabrication ePTFE was introduced that led a more compliant double‐expanded PTFE (dePTFE). Further, layer P(AAm‐co‐NaAMPS)‐xanthan‐alginate hydrogel synthesized mechanically interlocked onto luminal surface dePTFE In this novel synergistic approach, outer polymer provided support while inner enhanced cytocompatibility, endothelialization, burst pressure resistance. Among four types studied, namely, ePTFE, dePTFE, ePTFE‐P(AAm‐co‐NaAMPS)‐xanthan‐alginate, dePTFE‐P(AAm‐co‐NaAMPS)‐xanthan‐alginate, last graft exhibited most desirable attributes. It had highest longitudinal circumferential tensile strengths “toe region,” leakage pressures, suture retention strength. Additionally, also demonstrated best endothelialization capabilities. Overall, dePTFE‐P(AAm‐co‐NaAMPS)‐xanthan‐alginate found be promising candidate PTFE‐based grafts, showing potential future applications transplantation. Highlights Mechanical interlocking ensures robust bonding Hydrogel‐enhanced dePTFE‐hydrogel showed better capability.

Language: Английский

3D-printed multilayer membranes for photocatalytic degradation of ciprofloxacin

Applied Materials Today, Journal Year: 2025, Volume and Issue: 44, P. 102728 - 102728

Published: April 17, 2025

Language: Английский