O2k-Specifications

                

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O2k-Specifications

Description	O2k versus multiwell respirometer: O2k stands for Oxygraph-2k and high-resolution respirometry, meeting powerful quality criteria securing high output and pioneering state-of-the-art comprehensive OXPHOS analysis of substrate control and coupling control of mitochondrial function. 'High throughput' stands for disposable multiwell systems - expensive, with limited scope and extremely high running costs. In respirometry, high throughput is not equivalent to high output.
Product ID	MiPNet18.10
Type	O2k, Feedback
Link	Bioblast pdf
Image

Oxygraph-2k and O2k-MultiSensor system: specifications for respirometry and comprehensive OXPHOS analysis.

» Open Access-MiPNet18.10.pdf ; Versions

OROBOROS (2014) Mitochondr Physiol Network

Abstract: Gnaiger E, Fasching M (2014) Oxygraph-2k and O2k-MultiSensor system: specifications for respirometry and comprehensive OXPHOS analysis. Mitochondr Physiol Network 18.10(04): 1-8. • Keywords: O2k-Specifications

• O2k-Network Lab: AT Innsbruck OROBOROS

Labels: MiParea: Respiration, Instruments;methods 

Organism: Human 

Preparation: Intact cells, Permeabilized cells, Permeabilized tissue, Homogenate, Isolated Mitochondria"Isolated Mitochondria" is not in the list (Intact organism, Intact organ, Permeabilized cells, Permeabilized tissue, Homogenate, Isolated mitochondria, SMP, Chloroplasts, Enzyme, Oxidase;biochemical oxidation, ...) of allowed values for the "Preparation" property., SMP 

HRR: Oxygraph-2k, TIP2k, Fluorometry"Fluorometry" is not in the list (Oxygraph-2k, TIP2k, O2k-Fluorometer, pH, NO, TPP, Ca, O2k-Spectrophotometer, O2k-Manual, O2k-Protocol, ...) of allowed values for the "Instrument and method" property., pH, NO, TPP, Ca, Theory 

» More details on O2k-Specifications? Consult OROBOROS

Discussion

Scientists who have experience with both instruments are invited to extend the discussion:

» Talk:MiPNet18.10_O2k_versus_multiwell

» XFe for isolated mitochondria - a critical discussion

Selected related links

» Low running costs for the OROBOROS O2k

» Power-O2k

» O2k-Publications: Topics

Conflict of interest

Erich Gnaiger is founder and CEO of OROBOROS INSTRUMENTS, and responsible for the development of the Oxygraph-2k in collaboration with the O2k-Team and our partners. A series of methodological publications is the result of positive feedback between his work as faculty staff of the Medical University of Innsbruck, his company initiatives and numerous international cooperations.

Selected references

• Gnaiger E, Steinlechner-Maran R, Méndez G, Eberl T, Margreiter R (1995) Control of mitochondrial and cellular respiration by oxygen. J Bioenerg Biomembr 27: 583-596.

• Steinlechner-Maran R, Eberl T, Kunc M, Margreiter R, Gnaiger E (1996) Oxygen dependence of respiration in coupled and uncoupled endothelial cells. Am J Physiol Cell Physiol 271: C2053-C2061.

• Gnaiger E, Méndez G, Hand SC (2000) High phosphorylation efficiency and depression of uncoupled respiration in mitochondria under hypoxia. Proc Natl Acad Sci U S A 97: 11080-11085.

• Gnaiger E (2001) Bioenergetics at low oxygen: dependence of respiration and phosphorylation on oxygen and adenosine diphosphate supply. Respir Physiol 128: 277-297.

• Hütter E, Renner K, Pfister G, Stöckl P, Jansen-Dürr P, Gnaiger E (2004) Senescence-associated changes in respiration and oxidative phosphorylation in primary human fibroblasts. Biochem J 380: 919-928.

• Kuznetsov AV, Schneeberger S, Seiler R, Brandacher G, Mark W, Steurer W, Saks V, Usson Y, Margreiter R, Gnaiger E (2004) Mitochondrial defects and heterogeneous cytochrome c release after cardiac cold ischemia and reperfusion. Am J Physiol Heart Circ Physiol 286: H1633–H1641.

• Gnaiger E (2008) Polarographic oxygen sensors, the oxygraph and high-resolution respirometry to assess mitochondrial function. In: Mitochondrial Dysfunction in Drug-Induced Toxicity (Dykens JA, Will Y, eds) John Wiley: 327-352.

• Scandurra FM, Gnaiger E (2010) Cell respiration under hypoxia: Facts and artefacts in mitochondrial oxygen kinetics. Adv Exp Med Biol 662: 7-25.

• Aguirre E, Rodríguez-Juárez F, Bellelli A, Gnaiger E, Cadenas S (2010) Kinetic model of the inhibition of respiration by endogenous nitric oxide in intact cells. Biochim Biophys Acta 1797: 557-565.

• Votion DM, Gnaiger E, Lemieux H, Mouithys-Mickalad A, Serteyn D (2012) Physical fitness and mitochondrial respiratory capacity in horse skeletal muscle. PLoS One 7: e34890.

• Pesta D, Gnaiger E (2012) High-resolution respirometry. OXPHOS protocols for human cells and permeabilized fibres from small biopisies of human muscle. Methods Mol Biol 810: 25-58.

• Gnaiger E (2012) Mitochondrial Pathways and Respiratory Control. An Introduction to OXPHOS Analysis. Mitochondr Physiol Network 17.18. OROBOROS MiPNet Publications, Innsbruck: 64 pp.