Pressure-temperature phase diagram for shapes of vesicles: A coarse-grained molecular dynamics study

Ping Liu; Ju Li; Yong-Wei Zhang
October 2009
Applied Physics Letters;10/5/2009, Vol. 95 Issue 14, p143104
Academic Journal
Coarse-grained molecular dynamics simulations are performed to obtain the phase diagram for shapes of a vesicle with a variation in temperature and pressure difference across the membrane. Various interesting vesicle shapes are found, in particular, a series of shape transformations are observed for a vesicle with an initial spherical shape, which changes to a prolate shape, then an oblate shape, and then a stomatocyte shape, with either increasing temperature or decreasing pressure difference across the membrane.


Related Articles

  • Homogenization of a boundary value problem in a thick cascade junction. Mel�nik, T.; Chechkin, G. // Journal of Mathematical Sciences;Oct2008, Vol. 154 Issue 1, p50 

    We consider a homogenization problem in a singularly perturbed two-dimensional domain of a new type that consists of a junction body and many alternating thin rods of two classes. One of the classes consists of rods of finite length, whereas the other contains rods of small length, and...

  • A theory of vibrational energy relaxation in liquids. Egorov, S. A.; Skinner, J. L. // Journal of Chemical Physics;10/22/1996, Vol. 105 Issue 16, p7047 

    A microscopic statistical mechanical theory of the vibrational energy relaxation of a diatomic solute in an atomic solvent is presented. The diatomic is treated as a breathing Lennard-Jones sphere. The relaxation rate is obtained from the Fourier transform of the force–force...

  • Perturbation in the Fractional Fourier Span due to Erroneous Transform Order and Window Function. Shankar, Sukrit; Patsa, Chetana Shanta; Sharma, Jaydev // Proceedings of World Academy of Science: Engineering & Technolog;Feb2008, Vol. 39, p329 

    Fractional Fourier Transform is a generalization of the classical Fourier Transform. The Fractional Fourier span in general depends on the amplitude and phase functions of the signal and varies with the transform order. However, with the development of the Fractional Fourier filter banks, it is...

  • Further analysis of the dynamically averaged vibrational spectrum for the “magic” protonated 21-water cluster. Iyengar, Srinivasan S. // Journal of Chemical Physics;6/7/2007, Vol. 126 Issue 21, p216101 

    A temperature dependent analysis of the vibrational spectrum of the protonated 21-water cluster is provided using the ab initio molecular dynamics method called atom-centered density matrix propagation. It is found that even at low temperatures, finite temperature dynamical averaging greatly...

  • Analyzing solution-phase time-resolved x-ray diffraction data by isolated-solute models. Jae Hyuk Lee; Kyoung Hwan Kim; Tae Kyu Kim; Youhong Lee; Hyotcherl Ihee // Journal of Chemical Physics;11/7/2006, Vol. 125 Issue 17, p174504 

    Extracting transient structural information of a solute from time-resolved x-ray diffraction (TRXD) data is not trivial because the signal from a solution contains not only the solute-only term as in the gas phase, but also solvent-related terms. To obtain structural insights, the diffraction...

  • Vibrational spectra of penta-atomic silicon–carbon clusters. II. Linear Si2C3. Presilla-Márquez, J. D.; Graham, W. R. M. // Journal of Chemical Physics;1/1/1994, Vol. 100 Issue 1, p181 

    Fourier transform infrared matrix measurements carried out in conjunction with ab initio calculations reported in a companion paper by Rittby have resulted in the first identification of two fundamental vibrations, the C=C stretching mode ν3(σu)=1955.2 cm-1, and the Si–C stretching...

  • Optical control of two-photon excitation efficiency of α-perylene crystal by pulse shaping. Okada, T.; Otake, I.; R. Mizoguchi; Onda, K.; Kano, S. S.; Wada, A. // Journal of Chemical Physics;10/1/2004, Vol. 121 Issue 13, p6386 

    Optimized pulse shaping experiments were carried out on the control of two-photon excitation efficiency of an a-perylene crystal in the temperature region from 30 to 290 K. It was Ibund that a pulse train with a pulse interval of 90 fs and an alternately reversing phase relation increased the...

  • Infrared characterization of hafnium oxide grown by atomic layer deposition using ozone as the oxygen precursor. Wang, Y.; Dai, M.; Ho, M.-T.; Wielunski, L. S.; Chabal, Y. J. // Applied Physics Letters;1/8/2007, Vol. 90 Issue 2, p022906 

    HfO2 growth on H-terminated Si surfaces by atomic layer deposition (ALD) is studied with in situ Fourier transform infrared spectroscopy and ex situ Rutherford backscattering, using tetrakis-(ethyl-methyl-amino) hafnium and ozone as the hafnium and oxygen precursors, and compared to...

  • Vibration-torsion-rotation analysis of the v[sub 12] band of CH[sub 3]CD[sub 3]. Moazzen-Ahmadi, N.; Ozier, I. // Journal of Chemical Physics;1/15/1998, Vol. 108 Issue 3, p838 

    Presents the vibration-torsion-rotation analysis of the v[sub 12] band of CH[sub 3]CD[sub 3] by measuring the Fourier transform spectrum. Determination of coupling parameters; Use of the electric-resonance molecular-beam technique in splitting measurement; Impact of internal rotation on...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics