Interactions between DNA nanostars in the high-concentration region
The past decade has seen huge advances in the development of design principles of DNA nanoparticles. For instance metamaterials with unusual phase diagrams can be prepared using DNA as a building block. The diverse structures that DNA can have vastly expand its potential uses in nanotechnology and biotechnology applications. Here we propose to study by SANS the structural properties of newly synthesized branched systems of DNA, nanostars with 4 arms. These systems have unique self-assembling properties. We propose to measure the S(Q) of DNA nano-stars in the high-concentration range, where they form a reversible gel phase. The SANS experimental data will be interpreted by using a theoretical model suggested by some of the proposers, that describes the self-assembly of anisotropic macromolecules. These findings will be crucial to predict the thermal and kinetic stability of self-assembled DNA hydrogels, with relevant implications in the design of commercial complex fluids with tailored properties.
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Alessandro Paciaroni; BOMBOI Francesca; COMEZ Lucia; Javier Fernandez-Castanon; PORCAR Lionel and SCIORTINO Francesco. (2015). Interactions between DNA nanostars in the high-concentration region. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-13-559
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