منابع مشابه
Bubble dynamics in DNA
The formation of local denaturation zones (bubbles) in double-stranded DNA is an important example for conformational changes of biological macromolecules. We study the dynamics of bubble formation in terms of a Fokker-Planck equation for the probability density to find a bubble of size n base pairs at time t, on the basis of the free energy in the Poland-Scheraga model. Characteristic bubble c...
متن کاملCavitation bubble dynamics.
The dynamics of cavitation bubbles on water is investigated for bubbles produced optically and acoustically. Single bubble dynamics is studied with laser produced bubbles and high speed photography with framing rates up to 20.8 million frames per second. Examples for jet formation and shock wave emission are given. Acoustic cavitation is produced in water in the interior of piezoelectric cylind...
متن کاملBubble dynamics in double-stranded DNA.
We report the first measurement of the dynamics of bubble formation in double-stranded DNA. Fluctuations of fluorescence of a synthetic DNA construct, internally tagged with a fluorophore and a quencher, are monitored by fluorescence correlation spectroscopy. The relaxation dynamics follow a multistate relaxation kinetics, with a characteristic time scale of 50 microseconds. A simple model of b...
متن کاملBubble cluster dynamics in an acoustic field.
A mathematical model describing dynamics of the cluster of gas bubbles in an acoustic field is presented. According to this model a cluster is considered as a large drop with microbubbles inside. The proposed model is used as a basis (1) for an analytical study of small bubble oscillations in mono- and polydisperse clusters and (2) for numerical investigations of nonlinear bubble oscillations a...
متن کاملDynamics of DNA Bubble in Viscous Medium
Theoretical High Energy Physics and Instrumentation (THEPI), Department of Physics, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia. Badan Pengkajian dan Penerapan Teknologi (BPPT) ,Jl. MH. Tahmrin 8 Jakarta , Indonesia Theoretical Physics Division, Department of Physics, Bogor Agricultural University , Kampus Darmaga, Bogor, Indonesia Indonesia Center for Theoretical and M...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1972
ISSN: 0001-4966
DOI: 10.1121/1.1981942