The degree of crystallinity and the interspatial properties of various lengths of DNA-on gold nanoparticles is studied as a function of temperature, along with the effects the addition of a thermally responsive copolymer plays on the rate of assembly, the degree of ordering and interparticle separation of the DNA-mediated assemblies. Small-angle x-ray scattering was used to aid in determining the crystallinity and interspatial properties of the assemblies. The addition of polymer was found to disrupt long-range ordering and extend interparticle separation, while temperature tended to disrupt base stacking interactions, expanding pure DNA spacer regions, and compression the DNA upon the addition of polymer due to the thermal response of the polymer and entanglement with the spacer.<br/>

Investigating the interparticle spatial properties and phase behavior of DNA-mediated nanoparticle assemblies with incorporated temperature sensitive co-polymers

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.