Glycopolymer Microarrays with Sub‐Femtomolar Avidity for Glycan Binding Proteins Prepared by Grafted‐To/Grafted‐From Photopolymerizations
Abstract
We report a novel glycan array architecture that binds the mannose‐specific glycan binding protein, concanavalin A (ConA), with sub‐femtomolar avidity. A new radical photopolymerization developed specifically for this application combines the grafted‐from thiol–(meth)acrylate polymerization with thiol–ene chemistry to graft glycans to the growing polymer brushes. The propagation of the brushes was studied by carrying out this grafted‐to/grafted‐from radical photopolymerization (GTGFRP) at >400 different conditions using hypersurface photolithography, a printing strategy that substantially accelerates reaction discovery and optimization on surfaces. The effect of brush height and the grafting density of mannosides on the binding of ConA to the brushes was studied systematically, and we found that multivalent and cooperative binding account for the unprecedented sensitivity of the GTGFRP brushes. This study further demonstrates the ease with which new chemistry can be tailored for an application as a result of the advantages of hypersurface photolithography.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 11, 2021
- Source ID
- 10.1002/anie.202105729
Entities
People
- Adam B Braunschweig
- Daniel J. Valles
- David R Mootoo
- Joanna Korpanty
- Nathan C. Gianneschi
- Samiha Uddin
- Yasir Naeem
- Yerzhan S. Zholdassov
Organizations
- Air Force Office of Scientific Research
- CUNY Graduate School and University Center
- City University of New York
- Hunter College
- National Science Foundation
- National Science Foundation Directorate for Biological Sciences
- National Science Foundation Directorate for Engineering
- National Science Foundation Directorate for Mathematical & Physical Sciences
- Northwestern University
- United States Army Research Laboratory
- United States Department of Defense