Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 13, Issue 3, Pages 4711-4722Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c19396
Keywords
catecholamine polymerization; click reaction; surface patterning; antibacterial; cell adhesion; tissue engineering
Funding
- NIH/NIBIB Trailblazer Award [R21 EB029548]
- New Jersey Health Foundation Research Grant Program [PC 88-20]
- Rutgers University
Ask authors/readers for more resources
This study presents a new chemical approach for simple and site-specific surface functionalization, enabling drop-coating and grafting of solid surfaces in a single operation using small volumes. The method shows general applicability for immobilizing molecules of diverse structure and biological activities, with demonstrated biological applications in anti-biofouling, cellular adhesion, scaffold seeding, and tissue regeneration, advancing surface chemistry by integrating simplicity and precision with multipurpose surface functionalization.
Realization of robust and facile surface functionalization processes is critical to biomaterials and biotechnology yet remains a challenge. Here, we report a new chemical approach that enables operationally simple and site-specific surface functionalization. The mechanism involves a catechol-copper redox chemistry, where the oxidative polymerization of an alkynyl catecholamine reduces Cu(II) to Cu(I), which in situ catalyzes a click reaction with azide-containing molecules of interest (MOIs). This process enables drop-coating and grafting of two- and three-dimensional solid surfaces in a single operation using as small as sub-microliter volumes. Generalizability of the method is shown for immobilizing MOIs of diverse structure and chemical or biological activity. Biological applications in anti-biofouling, cellular adhesion, scaffold seeding, and tissue regeneration are demonstrated, in which the activities or fates of cells are site-specifically manipulated. This work advances surface chemistry by integrating simplicity and precision with multipurpose surface functionalization.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available