Journal
BIOCONJUGATE CHEMISTRY
Volume 30, Issue 7, Pages 1864-1869Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.bioconjchem.9b00271
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Funding
- National Cancer Institute of the National Institutes of Health (NIH) [P30CA016086]
- National Science Foundation (NSF) as part of the National Nanotechnology Coordinated Infrastructure (NNCI) [ECCS-1542015]
- Department of Applied Physical Sciences at UNC-Chapel Hill
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Creating soft materials with the tunable hierarchical structures observed in nature remains an enormous challenge. Synthetic hierarchical systems have been reported, yet strategies to reversibly modulate their structure and function are scarce. We report on the programmable self-assembly of peptide-DNA brush copolymers into supramolecular architectures that can be tuned with changes in temperature, pH, or addition of a soluble trigger. A fiber to bundle transition occurs upon mixing peptides bearing complementary oligonucleotides. These hierarchical structures can be reversed using the programmable nature of DNA-DNA interactions. The ability to encode the final assemblies in the composition of both amino acid and DNA building blocks provides a strategy for constructing a unique class of reconfigurable supramolecular materials.
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