Loading...
  • Biophysics
  • There he focused on problems in membrane biophysics and cell signaling using a wide range of advanced fluorescence microscopy methods including two-photon imaging, patterned photoactivation, single molecule imaging, photoactivated localization microscopy (PALM), and pulsed interleaved excitation fluorescence cross-correlation spectroscopy (PIE-FCCS). (upenn.edu)
  • proton exch
  • Changes that carbon-supported platinum electrocatalysts undergo in a proton exchange membrane fuel cell environment were simulated by ex situ heat treatment of catalyst powder samples at 150 C and 100% relative humidity. (unt.edu)
  • phospholipids
  • Some studies developed at the Regional Center for Biotechnology at Haryana (India) have revealed that free hydroxyl groups on specific bile phospholipids increase solvent dipole penetration within the membrane. (wikipedia.org)
  • Dietary sources involved in the construction of lipid raft, n-3 PUFA from oil fish as well as polyphenols, affect the molecular and structural shape of the phospholipids in the membrane. (wikipedia.org)
  • protein-protein inte
  • ProLIF requires no specific instrumentation, apart from a standard flow cytometer and can be applied to measure a broad range of membrane-dependent protein-protein interactions with the potential for high-throughput/multiplex analyses. (kent.ac.uk)
  • Transmembrane
  • Here we describe a technique called ProLIF (Protein-Liposome Interactions by Flow cytometry) to reconstitute recombinant integrin transmembrane domain (TMD) and cytoplasmic tail (CT) fragments on liposomes as individual α or β subunits or as αβ heterodimers and, using flow cytometry, to rapidly and quantitatively measure protein interactions with these membrane-embedded integrins. (kent.ac.uk)
  • Transmembrane ion concentration gradients (membrane potential) are required for living organisms. (wikipedia.org)
  • neurons
  • In bistability hypotheses, activity results from the intrinsic membrane properties of specialized neurons, which generate prolonged responses to brief excitation. (jneurosci.org)
  • Our aim was to find these neurons and determine directly whether they make the mutual excitatory connections expected from reverberation hypotheses ( Dale and Roberts, 1985 ) or whether their persistent activity depends on cellular properties such as membrane bistability. (jneurosci.org)
  • fluidity
  • One of its most important characteristics is its sensitivity to membrane phase transitions as well as other alterations to membrane fluidity such as the penetration of water. (wikipedia.org)
  • Generalized polarization values vary from 1 (no solvent effect) to -1 (complete exposure to bulk water): Laurdan anisotropy detects changes in plasma membrane fluidity caused by the interaction of determinate surroundings by calculating the generalized polarization and monitoring the reconstitution of lipid microdomains. (wikipedia.org)
  • receptor
  • Membrane protein dimerization, for example, is a key regulator of many receptor pathways, but its role in others is still controversial or completely unknown. (upenn.edu)
  • configurations
  • Computations with mobile membranes can be defined over specific configurations (like process calculi), while they represent also a rule-based formalism (like P systems). (wikipedia.org)
  • In terms of computation, the work is performed using membrane configurations. (wikipedia.org)
  • M} If M {\displaystyle M} and N {\displaystyle N} are two membrane configurations, M {\displaystyle M} reduces to N {\displaystyle N} (denoted by M → N {\displaystyle M\rightarrow N} ) if there exists a rule in the set of rules R {\displaystyle R} applicable to the configuration M {\displaystyle M} such that the new configuration N {\displaystyle N} is obtained. (wikipedia.org)
  • flux
  • Alan Hodgkin realized that, to understand ion flux across the membrane, it was necessary to eliminate differences in membrane potential. (wikipedia.org)
  • The energy demand of the submerged system can be up to 2 orders of magnitude lower than that of the sidestream systems and submerged systems operate at a lower flux, demanding more membrane area. (wikipedia.org)
  • plasma
  • The use of Laurdan as a fluorescent maker is to visualize and quantify the insolubility of the plasma membrane, analysing its remodelling activity. (wikipedia.org)
  • Studies using mice have been of particular importance in sensing other biomolecules which influence glycerol and acyl chain regions of the plasma membrane. (wikipedia.org)
  • Expression
  • P i = D i K i {\displaystyle P_{i}=D_{i}K_{i}} The flow of a second species, j, can be defined as: J = P j ( p j ′ − p j ″ ) l {\displaystyle J={\frac {P_{j}(p_{j}'-p_{j}'')}{l}}} With the expression above, a membrane system for a binary mixture can be sufficiently defined. (wikipedia.org)
  • displaystyle
  • Mobile membranes represents a formalism which describes the movement of membranes inside a spatial structure by applying rules from a given set of rules R {\displaystyle R} . The mobility is provided by consumption and rewriting of objects. (wikipedia.org)
  • qquad \qquad {\it {(Struc)}}\ {\frac {\displaystyle M\equiv _{mem}M'\quad M'\rightarrow N'\quad \ N'\equiv _{mem}N}{\displaystyle M\rightarrow N}}} When describing a computation of a systems of mobile membranes, an initial configuration M 0 {\displaystyle M_{0}} and a set of rules R {\displaystyle R} are given. (wikipedia.org)
  • permeant
  • In a typical membrane system the incoming feed stream is separated into two components: permeant and retentate. (wikipedia.org)
  • Permeant is the gas that travels across the membrane and the retentate is what is left of the feed. (wikipedia.org)
  • potential
  • A basic voltage clamp will iteratively measure the membrane potential, and then change the membrane potential (voltage) to a desired value by adding the necessary current. (wikipedia.org)
  • This amplifier also gets an input from the signal generator that determines the command potential, and it subtracts the membrane potential from the command potential (Vcommand - Vm), magnifies any difference, and sends an output to the current electrode. (wikipedia.org)
  • The microelectrodes compare the membrane potential against a command voltage, giving an accurate reproduction of the currents flowing across the membrane. (wikipedia.org)
  • Although the idea of replacing the settling tank of the conventional activated sludge process was attractive, it was difficult to justify the use of such a process because of the high cost of membranes, low economic value of the product (tertiary effluent) and the potential rapid loss of performance due to membrane fouling. (wikipedia.org)
  • computational
  • More recent computational systems abstracted from natural processes include swarm intelligence, artificial immune systems, membrane computing, and amorphous computing. (wikipedia.org)
  • reduction
  • Recent technical innovation and significant membrane cost reduction have enabled MBRs to become an established process option to treat wastewaters. (wikipedia.org)
  • A specific feature of the mobile membranes is that this new rule-based model is appropriate to prove computability results in terms of Turing machines rather by reduction to the lambda calculus as in the case of process calculi with mobility. (wikipedia.org)
  • ionic
  • The voltage clamp allows the membrane voltage to be manipulated independently of the ionic currents, allowing the current-voltage relationships of membrane channels to be studied. (wikipedia.org)
  • The detection principle is based on monitoring the ionic current passing through the nanopore as a voltage is applied across the membrane. (wikipedia.org)
  • researchers
  • Studying mechanisms at such tiny dimensions presents researchers with enormous challenges - for example, when they want to find out how an important component of the membrane - cholesterol - behaves and is distributed. (innovations-report.com)