Measurements of micro bubble nucleation temperatures in DNA solutions
نویسندگان
چکیده
منابع مشابه
Bubble nucleation and cooperativity in DNA melting.
Bubbles in DNA are related to fundamental processes such as duplication and transcription. Using a new ensemble technique to trap intermediate states, we present direct measurements of the average length of the denaturation bubble and the statistical weights of the bubble states in the temperature-driven melting of DNA oligomers. For a bubble flanked by double-stranded regions, we find a nuclea...
متن کاملTheory of Bubble Nucleation and Cooperativity in DNA Melting
Saúl Ares, 2 N. K. Voulgarakis, K. Ø. Rasmussen, and A. R. Bishop Theoretical Division and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA Grupo Interdisciplinar de Sistemas Complejos (GISC) and Departamento de Matemáticas, Universidad Carlos III de Madrid, Avenida de la Universidad 30, 28911 Leganés, Madrid, Spain Department of Physics, Universit...
متن کاملHomogeneous nucleation temperatures in aqueous mixed salt solutions.
This is the first report on the measurement of homogeneous nucleation temperature, TH, in the presence of aqueous mixed salt systems of varying compositions and ionic strengths. The TH,m (TH value in aqueous mixed salt system) data for these systems have been analyzed in terms of a simple empirical equation. The TH,m values in simple aqueous mixed salts like NaCl-KCl can be approximated by line...
متن کاملComment on "bubble nucleation and cooperativity in DNA melting".
The conclusions presented by Ares et al. [1] rely on not converged calculations and should be considered with caution. Zeng et al. investigated the temperature evolution of the length of bubbles close to the melting of short DNA sequences and concluded that the average size of ‘‘bubbles in the middle’’ reaches a plateau equal to the number of AT pairs before the two strands separate [2]. Ares e...
متن کاملElectroweak Bubble Nucleation , Nonperturbatively
We present a lattice method to compute bubble nucleation rates at radiatively induced first order phase transitions, in high temperature, weakly coupled field theories, nonperturbatively. A generalization of Langer’s approach, it makes no recourse to saddle point expansions and includes completely the dynamical prefactor. We test the technique by applying it to the electroweak phase transition ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Micromechanics and Microengineering
سال: 2005
ISSN: 0960-1317,1361-6439
DOI: 10.1088/0960-1317/15/3/018