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Selected Works

Francis Starr

2010

Articles 1 - 2 of 2

Full-Text Articles in Physics

Universal Two-Step Crystallization Of Dna-Functionalized Nanoparticles, Wei Dai, Sanat K. Kumar, Francis W. Starr Dec 2009

Universal Two-Step Crystallization Of Dna-Functionalized Nanoparticles, Wei Dai, Sanat K. Kumar, Francis W. Starr

Francis Starr

No abstract provided.


Valency Dependence Of Polymorphism And Polyamorphism In Dna-Functionalized Nanoparticles, Wei Dai, Chia Wei Hsu, Francesco Sciortino, Francis W. Starr Dec 2009

Valency Dependence Of Polymorphism And Polyamorphism In Dna-Functionalized Nanoparticles, Wei Dai, Chia Wei Hsu, Francesco Sciortino, Francis W. Starr

Francis Starr

Nanoparticles (NP) functionalized with single-stranded DNA (ssDNA) offer a route to custom-designed, self- assembled nanomaterials with potentially unusual properties. The bonding selectivity of DNA guarantees one-to-one binding to form double-stranded DNA (dsDNA), and an appropriate base sequence results in head-to-tail binding linking NP into networks. We explore the phase behavior and structure of a model for NP functionalized with between 3 and 6 short ssDNA through simulations of a coarse-grained molecular model, allowing us to examine both the role of the number of attached strands (valency) and their relative orientations. The NP assemble into networks where the number of NP …