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Robust polymer nanofilms with bioengineering and environmental applications via facile and highly efficient covalent
Jun Huang1, Xiaoyong Qiu, Bin Yan
1Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada. hongbo.zeng@ualberta.ca.
Journal of Materials Chemistry. B
|April 8, 2020
Summary
This study introduces robust, multifunctional polymer nanofilms using spin-assisted layer-by-layer assembly. These versatile films offer tunable properties for diverse engineering and bioengineering applications.
Area of Science:
- Materials Science
- Polymer Chemistry
- Nanotechnology
Background:
- Developing advanced polymer nanofilms is crucial for applications requiring tailored surface properties.
- Existing methods often face challenges in achieving robustness, scalability, and multifunctionality.
Purpose of the Study:
- To report novel, robust, and multifunctional covalent-bonded polymer nanofilms.
- To demonstrate their fabrication via spin-assisted layer-by-layer assembly.
- To explore their potential in engineering and bioengineering.
Main Methods:
- Utilized spin-assisted layer-by-layer assembly with polypentafluorophenylacrylate-block-polystyrene (PPFPA-b-PS) and branched polyethyleneimine (PEI).
- Investigated film properties including switchable hydrophobicity, thickness control, and mechanical stability.
- Demonstrated fabrication of freestanding, centimeter-scale nanofilms without sacrifice layers.
- Explored post-fabrication functionalization and tested applications such as H+ sensing and tunable cell attachment.
Main Results:
- Achieved robust, multifunctional polymer nanofilms with switchable hydrophobicity and controllable thickness.
- Demonstrated excellent film stability and mechanical integrity.
- Successfully fabricated large-scale, freestanding, flexible, and transparent nanofilms.
- Showcased tunable cell attachment and H+ sensing capabilities through functionalization.
Conclusions:
- Spin-assisted LbL assembly provides an efficient route to robust, multifunctional polymer nanofilms.
- These nanofilms exhibit tunable properties and are suitable for diverse engineering and bioengineering applications.
- The developed nanofilms hold significant promise for sensor technology and regenerative medicine.
