2002/09/13 by Ling Miao, Liyan Miao, Michael A. Lomholt +1 · 2 citations
Biochemistry, Genetics and Molecular Biology · Chemistry · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Chemistry #Classical mechanics #Computer science #Dynamics (music) #Interpretation (philosophy) #Lipid Membrane Structure and Behavior #Lipid bilayer #Membrane #Physics #Quantum mechanics #Relaxation (psychology) #Spectroscopy and Quantum Chemical Studies #Statistical physics #Theoretical physics #Vesicle #Work (physics) #cond-mat.soft
paper · pdf · doi:10.1140/epje/i2002-10068-2
published as Eur. Phys. J. E 9, 143 (2002) · 18 pages, 4 figures
arxiv created 2002/09/13 · openalex publication_date 2002/10/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this paper, the dynamics of spontaneous shape fluctuations of a single, giant quasi-spherical vesicle formed of a single lipid species is revisited theoretically. A coherent physical theory for the dynamics is developed based on a number of fundamental principles and considerations and a systematic formulation of the theory is also established. From the systematic theoretical formulation, an analytical description of the dynamics of shape fluctuations of quasi-spherical vesicles is derived. In particular, in developing the theory we have made a new interpretation of some of the phenomenological constants in a canonical continuum description of fluid lipid-bilayer membranes and shown the consequences of this new interpretation in terms of the characteristics of the dynamics of vesicle shape fluctuations. Moreover, we have used the systematic formulation of our theory as a framework against which we have discussed the previously existing theories and their discrepancies. Finally, we have made a systematic prediction about the system-dependent characteristics of the relaxation dynamics of shape fluctuations of quasi-spherical vesicles with a view of experimental studies of the phenomenon and also discussed, based on our theory, a recently published experimental work on the topic.