Search research articles

Search research articles

Related Experiment Videos

Low permeability biomedical polyurethane nanocomposites.

Ruijian Xu¹, Evangelos Manias, Alan J Snyder

¹Department of Materials Science and Engineering, and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

Journal of Biomedical Materials Research. Part A

|December 17, 2002

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Revealing the Immune and Inflammatory Mechanisms of Electroacupuncture in Male IBS Rats Through Multi-Omics Analysis.

Neurogastroenterology and motility·2025

Same author

1-Year Results From a Multicenter Trial of a Polymer Surgical Mitral Valve: Insights Into New Technology.

Journal of the American College of Cardiology·2025

Same author

Polymerized Ionic Liquids: Correlation of Ionic Conductivity with Nanoscale Morphology and Counterion Volume.

ACS macro letters·2022

Same author

Charge Transport of Polyester Ether Ionomers in Unidirectional Silica Nanopores.

ACS macro letters·2022

Same author

Sulfonation of dialdehyde cellulose extracted from sugarcane bagasse for synergistically enhanced water solubility.

Carbohydrate polymers·2019

Same author

Environmental stress cracking performance of polyether and PDMS-based polyurethanes in an in vitro oxidation model.

Journal of biomedical materials research. Part B, Applied biomaterials·2016

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

This study introduces a novel nanocomposite membrane for biomedical applications. The new poly(urethane urea) (PUU) nanocomposite significantly reduces gas permeability, enhancing membrane performance.

Area of Science:

Materials Science
Biomedical Engineering

Background:

Biomedical polyurethane membranes often face challenges with gas permeability.
Improving membrane performance is crucial for advanced biomedical applications.

Purpose of the Study:

To develop a novel nanocomposite approach for reducing gas permeability in biomedical polyurethane membranes.
To investigate the structural and mechanical properties of these nanocomposites.

Main Methods:

Preparation of nanocomposites using poly(urethane urea) (PUU) and organically modified layered silicates (OLS).
Characterization using Wide-angle X-ray diffraction (WXRD) to confirm intercalated structures.
Mechanical testing to evaluate modulus, strength, and ductility.
Measurement of water vapor permeability.

Related Experiment Videos

Main Results:

WXRD confirmed the formation of intercalated PUU/OLS structures, indicated by increased silicate layer spacing.
Nanocomposite modulus increased with higher OLS content, while strength and ductility were maintained.
Water vapor permeability was reduced approximately fivefold at the highest OLS concentrations.

Conclusions:

The novel PUU/OLS nanocomposite approach effectively reduces gas permeability in biomedical membranes.
These materials offer enhanced mechanical properties suitable for biomedical applications.
The intercalated nanocomposite structure is key to improved membrane performance.