Critical fluctuations of tense fluid membrane tubules.

نویسندگان

  • Jean-Baptiste Fournier
  • Paolo Galatola
چکیده

We show that, contrary to planar membranes under tension, tense membrane tubules exhibit important critical fluctuations originating from unidimensional Goldstone modes. The latter yield unexpected behavior, such as correlations extending over the whole tube length and the increase of the fluctuating area over the projected area with increasing tension.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

P-98: Ultrastructural Study of Basement Membrane of Seminiferous Tubules in Adult Diabetic Rats with Spermatogenic Alterations

Background: The complications of diabetes are the major problems that occur in diabetic patients. It has been reported that, insulin insufficiency and the impairment of regulatory action of this hormone on Leydig and Sertoli cells have an important role in testicular alterations. Testicular disorders and change in normal spermatogenesis is one of the consequences of diabetes. This study was des...

متن کامل

Unsteady-state Computational Fluid Dynamics Modeling of Hydrogen Separation from H2/N2 Mixture

3D modeling of Pd/α-Al2O3 hollow fiber membrane by using computational fluid dynamic for hydrogen separation from H2/N2 mixture was considered in steady and unsteady states by using the concept of characteristic time. Characteristic time concept could help us to design and calculate surface to volume ratio and membrane thickness, and adjust the feed conditions. The contribution of resistance be...

متن کامل

The Effects of Manduca Sexta Diuretic Hormone on Fluid Transport by the Malpighian Tubules and Cryptonephric Complex of Manduca Sexta

1. Manduca sexta diuretic hormone (Mas-DH) stimulates fluid secretion by adult Malpighian tubules of M. sexta, demonstrating its site of diuretic action in M. sexta for the first time. It was not possible to develop a suitable bioassay to measure fluid secretion in larval proximal tubules. 2. Mas-DH has an antidiuretic action on the cryptonephric complex of larval M. sexta because it increases ...

متن کامل

The Effects of Regular Fluid Secretion from the Uterus of Laying Hens on the Longevity and Fertilization Ability of Fowl Sperm in the Oviduct

The aim of this study was to examine whether the secreted fluid from the uterus influences the survival and fertilization capacity of fowl sperm in the hen oviduct. Hens with either regular uterine fluid secretion or irregular uterine fluid secretion were artificially inseminated through the transfer of sperm into the uterus. Twenty-four hours after  artificial insemination, 3 hens with regular...

متن کامل

Ectopic expression of bovine type 5 phosphodiesterase confers a renal phenotype in Drosophila.

cGMP signaling regulates epithelial fluid transport by Drosophila Malpighian (renal) tubules. In order to directly evaluate the importance of cGMP-degrading phosphodiesterases (PDEs) in epithelial transport, bovine PDE5 (a bona fide cGMP-PDE), was ectopically expressed in vivo. Transgenic UAS-PDE5 Drosophila were generated, and PDE5 expression was driven in specified tubule cells in vivo by cel...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Physical review letters

دوره 98 1  شماره 

صفحات  -

تاریخ انتشار 2007