Abstract
The origins of sharp melting transitions in DNA-linked nanocomposite systems are discussed. Under typical experimental conditions, the local salt concentration in DNA-linked nanocomposite systems is important, leading to salt-induced condensation both in DNA-linked gold nanoparticle systems and polymer-DNA hybrid systems that leads to cooperative melting. Although this coop-erativity is supported by the experimental results, which have measured the number of cooperative DNA sequences, and molecular dynamics simulations, some recent experiments suggest that the sharp melting does not arise entirely from salt condensation. We point out that this discrepancy can be resolved by considering the contribution of large clusters, which only exist below the melting transition.
Original language | English (US) |
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Pages | 206-213 |
Number of pages | 8 |
State | Published - 2005 |
Event | 2nd Conference on Foundations of Nanoscience: Self-Assembled Architectures and Devices, FNANO 2005 - Snowbird, UT, United States Duration: Apr 24 2005 → Apr 28 2005 |
Other
Other | 2nd Conference on Foundations of Nanoscience: Self-Assembled Architectures and Devices, FNANO 2005 |
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Country/Territory | United States |
City | Snowbird, UT |
Period | 4/24/05 → 4/28/05 |
ASJC Scopus subject areas
- Hardware and Architecture
- Electrical and Electronic Engineering