نتایج جستجو برای: channel junction

تعداد نتایج: 272816  

Journal: :Nano letters 2006
D Djukic J M van Ruitenbeek

We report measurements of shot noise in the current through a single D2 molecule. The molecular junctions were formed by means of the mechanically controllable break junction technique. The configuration of the D2 molecule bridging the gap between two Pt tips is verified by use of point contact spectroscopy. Maintaining the same junction shot noise measurements were performed and the observed q...

2013
A. Mahjoob

A hybrid numerical scheme has been presented in this paper for channel flow simulation by coupling one-dimensional and two-dimensional models. Both 1D and 2D differential equations have been discretized by applying the finite volume cell-centered method in a collocated grid system and solved along channel axis for all sections and elements. Due to truncation, dissipation and round off errors, u...

2016
Debarshi Banerjee

Gap junctions are cell-to-cell junctions that are located in the basolateral surface of two adjoining cells. A gap junction channel is composed of a family of proteins called connexins. Gap junction channels maintain intercellular communication between two cells through the exchange of ions, small metabolites, and electrical signals. Gap junction channels or connexins are widespread in terms of...

2014
Carola Meier Katja Rosenkranz

Pathological conditions of the brain such as ischemia cause major sensorimotor and cognitive impairments. In novel therapeutic approaches to brain injury, stem cells have been applied to ameliorate the pathological outcome. In several experimental models, including hypoxia-ischemia and trauma, transplantation of stem cells correlated with an improved functional and structural outcome. At the ce...

2009
Fuhe Li Scott Anderson

As seen from the International Technology Roadmap for Semiconductors (ITRS) [1], the source/drain junction depth is being reduced each year in order to continue MOS transistor scaling. This year, leading-edge foundries and integrated device manufacturers (IDMs) are scheduled to move 65nm processes into pre-production, while simultaneously developing 45nm processes in R&D. In designing and manuf...

Journal: :The Biochemical journal 2009
Joell L Solan Paul D Lampe

Vertebrate gap junctions, composed of proteins from the connexin gene family, play critical roles in embryonic development, co-ordinated contraction of excitable cells, tissue homoeostasis, normal cell growth and differentiation. Phosphorylation of connexin43, the most abundant and ubiquitously expressed connexin, has been implicated in the regulation of gap junctional communication at several ...

2016
Cheryl L. Bell Sandra A. Murray

Adrenal cortical steroidogenesis and proliferation are thought to be modulated by gap junction-mediated direct cell-cell communication of regulatory molecules between cells. Such communication is regulated by the number of gap junction channels between contacting cells, the rate at which information flows between these channels, and the rate of channel turnover. Knowledge of the factors regulat...

Journal: :Journal of structural biology 2009
Oliver Gassmann Mohamed Kreir Cinzia Ambrosi Jennifer Pranskevich Atsunori Oshima Christian Röling Gina Sosinsky Niels Fertig Claudia Steinem

Connexin26 (Cx26) is a member of the connexin family, the building blocks for gap junction intercellular channels. These dodecameric assemblies are involved in gap junction-mediated cell-cell communication allowing the passage of ions and small molecules between two neighboring cells. Mutations in Cx26 lead to the disruption of gap junction-mediated intercellular communication with consequences...

Journal: :The Journal of biological chemistry 2003
Niklas Rye Jørgensen Stefan Cuoni Teilmann Zanne Henriksen Roberto Civitelli Ole Helmer Sørensen Thomas H Steinberg

The propagation of mechanically induced intercellular calcium waves (ICW) among osteoblastic cells occurs both by activation of P2Y (purinergic) receptors by extracellular nucleotides, resulting in "fast" ICW, and by gap junctional communication in cells that express connexin43 (Cx43), resulting in "slow" ICW. Human osteoblastic cells transmit intercellular calcium signals by both of these mech...

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