Coupling Cells

Readily releasable β cells with tight Ca2+-exocytosis coupling …

Although glucose up to 18.2 mM fully mobilized RRβs to release insulin synchronously (first phase), even higher glucose concentrations enhanced the sustained secretion from these cells (second phase). Release-incompetent β cells show similarities to RRβs in glucose-evoked Ca 2+ transients but exhibit Ca 2+-exocytosis coupling deficiency. A ...

The Basics of Electrical Coupling

Cells are said to be electrically coupled when ionic current injected into one cell passes to the cell''s neighbour. Fig. 1 a illustrates the electrical circuit in the simplest case, when only two cells are present. ... In the absence of true electrical coupling, the membranes are still close enough to one another to be capacitively coupled ...

Coupling in Biological Systems: Definitions, Mechanisms, and …

In biological literature, ''coupling'' is a common descriptor for a presumed mechanistic link between correlated quantities. The exact nature of such links is often left …

Coupling in Biological Systems: Definitions, Mechanisms, and ...

In biological literature, ''coupling'' is a common descriptor for a presumed mechanistic link between correlated quantities. The exact nature of such links is often left undefined or unknown, while the term is used in a wide variety of contexts. In single-cell biology, coupling can involve a physical contact between molecular components and/or ligand. At …

Coupling cell proliferation and development in plants

Coupling cell proliferation and development in plants. Crisanto Gutierrez. Nature Cell Biology 7, 535–541 (2005) Cite this article. 1560 Accesses. 111 Citations. 2...

Angewandte Chemie International Edition

Dimeric Giant Molecule Acceptors Featuring N-type Linker: Enhancing Intramolecular Coupling for High-Performance Polymer Solar Cells. Hongyuan Fu, Hongyuan Fu. State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical …

Coupling cell movement to multicellular development …

The collision of travelling waves of cells in an area of high-cell density creates stationary aggregates of cells, which can become motile and fuse with adjacent aggregates by an...

Enhanced optoelectronic coupling for perovskite/silicon tandem solar cells

Enhanced optoelectronic coupling for perovskite/silicon ...

21.4 The ATP cycle – College Biology I

This depends on a strategy that scientists call energy coupling. Cells couple the exergonic reaction of ATP hydrolysis to whatever work needs to be done. One example of energy coupling using ATP is the sodium …

Enhancing cofactor recycling in the bioconversion of racemic …

To enhance the cofactor recycling in this reaction, we report a new concept of coupling whole-cells with the cell-free system to enable separated intracellular and extracellular cofactor regeneration and recycling. This was demonstrated by the respective biotransformation of racemic 4-phenyl-2-butanol 1a and 1-phenyl-2-propanol 1b to (R)-4 ...

Coupling Cell Size Regulation and Proliferation Dynamics of

Single cells actively coordinate growth and division to regulate their size, yet how this size homeostasis at the single-cell level propagates over multiple generations to impact clonal expansion remains fundamentally unexplored. ... Coupling Cell Size Regulation and Proliferation Dynamics of C. glutamicum Reveals Cell Division Based on …

Mechanochemical Coupling and Junctional Forces during …

Coordinated migration generally requires cells to be in physical contact and coupled mechanically via cell-cell junctions. Cell-cell junction forces in turn can regulate key …

Coupling cell proliferation and development in plants

A frequently overlooked feature of plants is their ability to regenerate. Cells of certain organs can de-differentiate, revert to a totipotent stem cell fate, and originate a so-called somatic ...

Electrical coupling among Bergmann glial cells and its ...

We studied the characteristics of electrical coupling between Bergmann glial cells in mouse cerebellar slices using Lucifer Yellow injection, patch-clamping cell pairs, and ultrastructural inspection. While early postnatal cells (days 5-7) were not coupled, coupling was abundant at postnatal days 20 …

Cellular coupling in the heart | Science

Cocultures of fibroblasts and myocytes have demonstrated that coupling between the two cell types can alter myocyte excitability, repolarization, and conduction, …

Khan Academy

ATP cycle and reaction coupling | Energy (article)

Root System Architecture from Coupling Cell Shape to Auxin …

It takes into account diffusion within cells and cell wall at a rate of 300 μm 2 /s, as well as permeability across a cell membrane: influx permeability is by default set to 20 μm/s, but is 4-fold increased when AUX1 overexpression is taken into account; efflux permeability is set to 1 μm/s in the absence of visible PINs, and to 5 μm/s or ...

6.4: ATP: Adenosine Triphosphate

6.4: ATP: Adenosine Triphosphate

Mitochondrial Ca2+ uptake 1 (MICU1) and mitochondrial ca2 ...

In pancreatic β-cells, uptake of Ca(2+) into mitochondria facilitates metabolism-secretion coupling by activation of various matrix enzymes, thus facilitating ATP generation by oxidative phosphorylation and, in turn, augmenting insulin release. We employed an siRNA-based approach to evaluate the ind …

Graphene as Cellular Interface: Electromechanical Coupling with Cells

Interfacing cells with nanomaterials such as graphene, nanowires, and carbon nanotubes is useful for the integration of cellular physiology with electrical read outs. Here we show the interfacing of graphene sheets on the surface of yeast cells, leading to electromechanical coupling between the sheets and the cells. The cells are viable after …

Coupling cell proliferation and development in plants

In addition to the temporal and spatial regulation of cell-cycle progression in individual cells, multicellularity has imposed extra layers of complexity that impinge on the balance of cell …

r‐NG ‐Regulated Electron‐Phonon Coupling to Enhance …

r-NG -Regulated Electron-Phonon Coupling to Enhance Hot-Hole Injection for Inverted Perovskite Solar Cells. Can Wang, Can Wang. CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter, Chinese Academy …

Long-range mechanical coupling of cells in 3D fibrin gels

Moreover, computational modeling demonstrated that the direction of cell-induced force triggering band formation can be applied in a wide range of angles relative to a neighboring cell. Our findings indicate that long-range mechanical coupling between cells is an important mechanism in regulating multicellular processes in reconstituted fibrin ...

Mastering Biology Chapter 5 Flashcards

Study with Quizlet and memorize flashcards containing terms like Drag the labels onto the chart to match each process with its description., There are three main types of cellular work: chemical, transport, and movement. Most of this work is powered by the transfer of a phosphate group from one molecule to another in a process known as, Through energy …

A model to explain specific cellular communications and cellular …

In an organism, there may be only a low number of original Couplet Cells (e.g. Totipotent stem cells), more progenitor Couplet Cells (e.g. pluripotent stem cells), …

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