Category:NextGen-O2k

From Bioblast
Jump to: navigation, search


NextGen-O2k         K-Regio MitoFit         O2k-Innovation         Houska-Award 2012         K-Regio MitoCom         Bioblast 2012


Category:NextGen-O2k

The revolutionary all-in-one instrument to conquer mitochondrial disease

NextGen-O2k

MitoPedia: NextGen-O2k

» NextGen-O2k«
TermAbbreviationDescription
Hydrogen peroxideH2O2
Hydrogen peroxide
Hydrogen peroxide, H2O2 or dihydrogen dioxide, is one of several reactive oxygen intermediates generally referred to as reactive oxygen species (ROS). It is formed in various enzyme-catalyzed reactions (e.g., superoxide dismutase) with the potential to damage cellular molecules and structures. H2O2 is dismutated by catalase to water and oxygen. H2O2 is produced as a signaling molecule in aerobic metabolism and passes membranes more easily compared to other ROS.
Mitochondrial membrane potentialmtMP, Δψ [V]The mitochondrial membrane potential, mtMP, is the electric part of the protonmotive force, ΔpH+.

Δψ = ΔpH+ - ΔµH+ / F

mtMP or Δψ is the potential difference across the inner mitochondrial (mt) membrane, expressed in the electric unit of volt [V]. Electric force of the mitochondrial membrane potential is the electric energy change per ‘motive’ electron or per electron moved across the transmembrane potential difference, with the number of ‘motive’ electrons expressed in the unit coulomb [C].
NextGen-O2k
NextGen-O2k InstrumentNextGen-O2k Instrument
NextGen-O2k Technical developments
Oxygen kineticsOxygen kinetics describes the dependence of respiration of isolated mitochondria or cells on oxygen partial pressure. Frequently, a strictly hyperbolic kinetics is observed, with two parameters, the oxygen pressure at half-maximum flux, p50, and maximum flux, Jmax. The p50 is in the range of 0.2 to 0.8 kPa for cytochrome c oxidase, isolated mitochondria and small cells, strongly dependent on Jmax and coupling state.
PB-ModulePB-ModuleThe PB-Module has been developed for conducting measurements of PhotoBiology, including photosynthesis. It consists of the PB-Sensor and electronic components which are an integral part of the NextGen-O2k. Measurements are recorded and evaluated with the DatLab 8 software.
PB-SensorThe PB-Sensor has been designed as a part of the PB-Module to provide with an external source of light, in the range of the blue (451 nm) or red (634 nm) wavelengths. This enables experiments for evaluating the production/consumption of O2 in the presence of light. The PB-Sensor consists on one LED and one photodiode mounted on the sensor tip behind a plastic cover. The LED emits with blue or red light on the sample and its intensity can be regulated from 0 to 5000 µEinsteins*m-2*s-1. The photodiode provides real-time measurement of the light intensity allowing for continuous adjustment to the desired value, which can also help compensate for the temperature rise due to the operation of the LED.
Q-ModuleQ-ModuleThe Q-Module, developed both for measuring the Q redox state and for cyclic voltammetry measurements, is an integral part of the NextGen-O2k and consists of the Q-Sensor, integrated electronic components in the O2k, and the DatLab software.
Q-SensorThe Q-Sensor has been designed as a part of the Q-Module for measurements with cyclic voltammetry and voltammetry, allowing for analysis of the Q redox state. The Q-Stopper with the reference electrode is called Q-Sensor, which is plugged in the NextGen-O2k. A three-electrode system is used to detect the Q redox state. Two of the three electrodes (glassy carbon and platinum electrode) are built into the Q-Stopper, while the reference electrode is removable (Reference-Electrode\2.4 mm).
Template NextGen-O2k.jpg


Questions.jpg


Click to expand or collaps



Questions.jpg


Click to expand or collaps
Bioblast links: NADH - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>

Mitochondrial NADH and respiration

» Nicotinamide adenine dinucleotide
» NADH electron transfer-pathway state
» N-junction
» Complex I
» Rotenone
» Amytal
» Piericidin

Mitochondrial NADH production

» Tricarboxylic acid cycle
» Fatty acid oxidation

NextGen-O2k

» NextGen-O2k




Questions.jpg


Click to expand or collaps
Bioblast links: Hydrogen peroxide - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>



Questions.jpg


Click to expand or collaps
Bioblast links: ATP production - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>

Phosphorylation pathway

» Phosphorylation pathway
» ATP synthase
» Adenine nucleotide translocase
» Phosphate carrier

Phosphorylation pathway substrates

» ADP
» ATP
» Inorganic phosphate

Phosphorylation pathway inhibitors

» Oligomycin
» Carboxyatractyloside
» Atractyloside
» Bongkrekik acid

Coupling control

» Oxidative phosphorylation
» OXPHOS capacity
» P-L control efficiency
» ROUTINE respiration
» R-L control efficiency

Respiratory complexes and coupling

» Complex I
» Complex III
» Complex IV
» Proton pump
» Electron-transfer-pathway state

ATP production measurement

» Magnesium Green



Questions.jpg


Click to expand or collaps



Questions.jpg


Click to expand or collaps
Bioblast links: Calcium - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>



Questions.jpg


Click to expand or collaps
Bioblast links: PhotoBiology and plant physiology - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>

PhotoBiology: photosynthesis

» PhotoBiology
» Photosynthesis

Plant physiology: respiration

» Photorespiration
» Chlororespiration

NextGen-O2k and PB-Module

» NextGen-O2k
» PB-Module
» PB-Sensor


Subcategories

This category has only the following subcategory.

Pages in category "NextGen-O2k"

The following 200 pages are in this category, out of 286 total.

(previous page) (next page)
(previous page) (next page)