Related Experiment Video
Updated: Mar 6, 2026
13:57
Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
Published on: December 24, 2014
14.4K
Clickable Antifouling Polymer Brushes for Polymer Pen Lithography.
Uwe Bog, Andres de Los Santos Pereira1, Summer L Mueller2
1Department of Chemistry and Physics of Surfaces and Biointerfaces, Institute of Macromolecular Chemistry ASCR , v.v.i., Prague, Czech Republic.
ACS Applied Materials & Interfaces
|March 16, 2017
Summary
We developed protein-repellent polymer brushes that enable highly specific protein binding using click chemistry. This approach significantly reduces nonspecific protein adsorption, improving biofouling resistance for biomedical applications.
Area of Science:
- Biomaterials Science
- Surface Chemistry
- Nanotechnology
Background:
- Nonspecific protein adsorption compromises bioactive surfaces and assay results.
- Localized specific binding requires linkers for functional agents.
- Existing blocking methods like bovine serum albumin (BSA) can be insufficient.
Purpose of the Study:
- To develop protein-repellent polymer brushes for highly specific covalent immobilization of biorecognition elements.
- To enable selective protein adhesion using click chemistry.
- To create surfaces resistant to nonspecific protein adsorption and biofouling.
Main Methods:
- Utilized strain-promoted alkyne-azide cycloaddition click chemistry for surface immobilization.
- Employed polymer pen lithography (PPL) to create localized binding sites (low micrometer range).
- Demonstrated selective binding of streptavidin and resistance to nonspecific adsorption.
Main Results:
- Achieved highly specific covalent surface immobilization of biorecognition elements.
- Demonstrated selective streptavidin binding on PPL-patterned sites.
- Showcased significant reduction in nonspecific protein adsorption, even in complex biological fluids, outperforming BSA blocking.
Conclusions:
- The developed protein-repellent polymer brushes offer superior fouling resistance.
- This technology enables precise control over protein adhesion, reducing biofouling.
- Potential to enhance multiplexing capabilities of protein probes for biomedical research and applications.
