Abstract:
:The ability to predictably control the coassembly of multiple nanoscale building blocks, especially those with disparate chemical and physical properties such as biomolecules and inorganic nanoparticles, has far-reaching implications in catalysis, sensing, and photonics, but a generalizable strategy for engineering specific contacts between these particles is an outstanding challenge. This is especially true in the case of proteins, where the types of possible interparticle interactions are numerous, diverse, and complex. Herein, we explore the concept of trading protein-protein interactions for DNA-DNA interactions to direct the assembly of two nucleic-acid-functionalized proteins with distinct surface chemistries into six unique lattices composed of catalytically active proteins, or of a combination of proteins and DNA-modified gold nanoparticles. The programmable nature of DNA-DNA interactions used in this strategy allows us to control the lattice symmetries and unit cell constants, as well as the compositions and habit, of the resulting crystals. This study provides a potentially generalizable strategy for constructing a unique class of materials that take advantage of the diverse morphologies, surface chemistries, and functionalities of proteins for assembling functional crystalline materials.
journal_name
Proc Natl Acad Sci U S Aauthors
Brodin JD,Auyeung E,Mirkin CAdoi
10.1073/pnas.1503533112subject
Has Abstractpub_date
2015-04-14 00:00:00pages
4564-9issue
15eissn
0027-8424issn
1091-6490pii
1503533112journal_volume
112pub_type
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