NextGen-O2k Technical developments
The revolutionary all-in-one instrument to conquer mitochondrial disease.
WP1: Technical developments
Contents
- 1 Abstract
- 2 Achievements
- 3 Progress and next steps
- 4 Links and references
- 5 MitoPedia: NextGen-O2k
- 5.1 Coenzyme Q
- 5.2 Mitochondrial pathways, respiratory Complexes, and Q
- 5.3 NextGen-O2k and Q-Module
- 5.4 General
- 5.5 Mitochondrial NADH and respiration
- 5.6 Mitochondrial NADH production
- 5.7 NextGen-O2k
- 5.8 Phosphorylation pathway
- 5.9 Coupling control
- 5.10 Respiratory complexes and coupling
- 5.11 ATP production measurement
- 5.12 PhotoBiology: photosynthesis
- 5.13 Plant physiology: respiration
- 5.14 NextGen-O2k and PB-Module
Abstract
- In this workpackage the Q- and PB-Modules are developed for the NextGen-O2k.
- Development of the Q-Module and PB-Module and integration in the NextGen-O2k
- Testing of the NextGen-O2k in collaboration with the Early testers
- Testing and development of the software for the NextGen-O2k Modules
- Integration of the new protocols in the DatLab software
- In this workpackage the Q- and PB-Modules are developed for the NextGen-O2k.
Achievements
- Project Year 1: In the first year of the NextGen-O2k project, the new Q- and PB-Modules supported by the new architecture of the upgraded DatLab software have been developed and integrated. Additionally, we have successfully partnered with Key Opinion Leaders to begin testing the Q-Module prototypes. Working closely with our subcontractors WGT and H-Tech, key components such as cyclic voltammetry have been integrated into the system.
Progress and next steps
- 2020-10-15: Dispatch of 2 prototypes with integrated PB-Modules for testing at Tomas Morosinotto’s lab in Padua, IT and Yagut Allahverdiyeva-Rinne’s Lab in Turku, FI
- 2020-09-30: Tests on the PB-Sensors and PB-Module after upgrade of the firmware give positive results.
- 2020-09-11: Upgrade of the PB-Module firmware so the light intensity is corrected in real-time by the photodiode of the PB-Sensor tip
- 2020-07-16: Test of the new PB-Sensors give positive results.
- 2020-07-06: Delivery of the new PB-Sensor by WGT. Start of testing them at Oroboros.
- 2020-05-25: Project partner WGT begins designing a new type of sensor tip that protects the LEDs and helps with the maintenance of the PB-Sensors
- 2020-05-20: First tests of the PB-Module in the Q3-003 and Q3-004
- 2020-05-04: Third (Q3-003) and fourth (Q3-004) NextGen-O2k with the PB-Module integrated delivered for in-house testing
- 2020-04-27: First tests of the PB-Module in the Q3-002
- 2020-04-02: Start of the Quality Control tests in the Q3-002
- 2020-03-11: First tests of the PB-Module run in the Q3-001
- 2020-03-05: Second prototype (Q3-002) with integrated PB-Module received for in-house testing
- 2020-02-11: First prototype of NextGen-O2k (Q3-001) with integrated PB-Module received for in-house testing
- 2020-02-14: Dispatch of 2 prototypes for testing at Marten Szibor’s lab in Jena, DE and Carlo Viscomi’s Lab in Padua, IT
- 2020-02-11: Second set of feedback from the Key Opinion Leaders on the NextGen-O2k with the Q-Module received
- 2020-01-10: First feedback from the Key Opinion Leaders on the NextGen-O2k with the Q-Module received
- 2019-12-18: Final type of LEDs and wavelengths to be integrated in the PB-Module are confirmed
- 2019-11-31: New software for the quality control by cyclic voltammetry (Q-Module) sent to KOLs
- 2019-11-06: Dispatch of 1 prototype for testing at Anthony Molina’s Lab in San Diego, US
- 2019-10-29: Dispatch of 1 prototype for testing at Anthony Moore’s Lab in Sussex, UK
- 2019-10-16: Dispatch of 1 prototype for testing at Christos Chinopoulos’ Lab in Budapest, HU
- 2019-10-22: DatLab7.4 released
- 2019-10: Calibration of the light intensity provided by the PB-Sensors prototypes.
- 2019-09: 5 prototypes of the Q-Module ready for testing at our Key Opinion Leader’s labs
- 2019-08-07: Setting up of our lab for algae culturing activities started
- 2019-06-13: Start of testing the PB-Sensors prototypes at Oroboros
- 2019-06: Delivery of the first PB-Sensors prototypes by WGT to test at Oroboros
- 2019-06: Integration of cyclic voltammetry as a quality control step into the Q-Module
- 2019-06: Final version of the specific Q-Stopper (with integrated electronics) confirmed
Links and references
MitoPedia: NextGen-O2k
- » NextGen-O2k«
Term | Abbreviation | Description |
---|---|---|
Hydrogen peroxide | H2O2 | 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 potential | mtMP, 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 Instrument | NextGen-O2k Instrument | |
NextGen-O2k Technical developments | ||
Oxygen kinetics | Oxygen 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-Module | PB-Module | The 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-Sensor | The 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-Module | Q-Module | The 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-Sensor | The 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). |
- Bioblast links: Q - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
Coenzyme Q
- » Coenzyme Q
- » Coenzyme Q2
- » Ubiquinone
- » Semiquinone
- » Quinol, hydroquinone
- » Quinone
- » Q redox state
- » Q-cycle
Mitochondrial pathways, respiratory Complexes, and Q
- » Q-junction
- » Convergent electron flow
- » NS-pathway
- » FNS
- » FNSGp
NextGen-O2k and Q-Module
General
- Bioblast links: NADH - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
Mitochondrial NADH and respiration
Mitochondrial NADH production
NextGen-O2k
- Bioblast links: Hydrogen peroxide - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
- Specific
- General
- MiPNet O2k-Procedures
- Bioblast links: ATP production - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
Phosphorylation pathway
Phosphorylation pathway substrates
- » ADP
- » ATP
- » Inorganic phosphate
Phosphorylation pathway inhibitors
Coupling control
Respiratory complexes and coupling
ATP production measurement
- Bioblast links: pH and protons - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
- pH and protons
- » pH
- » hydrogen ion
- » proton
- » pH buffering capacity
- » proton flux
- » proton pump versus hydrogen ion pump
- » proton leak
- » proton slip
- » protonmotive force
- pH and protons
- O2k-pH
- » O2k-Catalogue: O2k-pH ISE-Module
- » O2k-Manual pH electrode: MiPNet23.15 O2k-pH ISE-Module
- » O2k-SOP: MiPNet08.16 pH calibration
- » File:PH-Calibration-List.xls
- » NextGen-O2k, ratiometric: Carboxy SNARF 1
- » NextGen-O2k, ratiometric: HPTS
- » pH calibration buffers
- O2k-pH
- O2k-Publications
- HRFR - general
- » O2k-Manual: MiPNet22.11 O2k-FluoRespirometer manual
- » O2k signals and output
- » O2k-SOP: MiPNet14.06 Instrumental O2 background
- » MiPNet19.18A O2k-Series G: Start
- » ESD
- » O2k configuration
- » O2k control
- » O2k-FluoRespirometer
- » O2k-Main Unit#O2k-Series
- » Titration-Injection microPump
- » Compare: O2k-TPP+_ISE-Module
- HRFR - general
- Bioblast links: Calcium - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
- Inhibitors
- General
- Bioblast links: PhotoBiology and plant physiology - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
PhotoBiology: photosynthesis
Plant physiology: respiration
NextGen-O2k and PB-Module
- » NextGen-O2k
- » PB-Module
- » PB-Sensor
Labels:
MitoPedia:NextGen-O2k