O2k-Catalogue: O2k-Modules

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O2k-Catalogue: O2k-Modules


Description 4#### O2k-Catalogue: O2k-Modules. O2k-Modules can be obtained with the O2k or added later, and can be simply installed by the user.
Product ID 4####
Type O2k, MultiSensor
Image 4####

O2k-Core to FluoRespirometer


O2k-Modules are add-on modules supported by the O2k. When one (or more) analytical parameters are monitored simultaneously with oxygen concentration and oxygen flux in the O2k, this is an O2k-MultiSensor application. The O2k fully supports the O2k-Modules.

High-resolution respirometry is extended by O2k-MultiSensor modules allowing the simultaneous measurement of oxygen consumption and one additional parameter. Fluorometric methods are available for a wide range of analytical parameters of major interest in mitochochondrial physiology: H2O2 production, mitochondrial membrane potential, intracellular pH, Ca2+, Mg2+, and NADH levels.

Advantages of the simultaneous measurement of additional parameters in a single respirometric chamber:

  1. Quality control of preparations by respirometric performance.
  2. Objective exclusion criteria for protocol related problems, e.g. overtitration of uncouplers, side effects of TPP+ or fluorophores.
  3. Elimination of artifacts of normalization for a mitochondrial marker when combining two methods in a single chamber.
  4. Additional information is acquired for a limited amount of sample.
  5. Oxygen dependence of parameters can be studied.

O2k-Catalogue: O2k-Modules

O2k-MultiSensor Manual

ChapterSectionLast update
MiPNet15.03 O2k-MultiSensor-ISE
O2k-MultiSensor system with ion selective electrodes (ISE).
MiPNet15.05 NO-manual
O2k-MultiSensor system with amperometric sensors: NO, H2S, H2O2.
MiPNet17.05 O2k-Fluo LED2-Module
O2k-Fluo LED2-Module.
MiPNet23.15 O2k-pH ISE-Module
Measurement of proton flux with the O2k-pH ISE-Module.
»O2k-Publications: O2k-Fluorometry


  • Makrecka-Kuka M, Krumschnabel G, Gnaiger E (2015) High-resolution respirometry for simultaneous measurement of oxygen and hydrogen peroxide fluxes in permeabilized cells, tissue homogenate and isolated mitochondria. Biomolecules 5:1319-38. - »Bioblast link«
  • Krumschnabel G, Fontana-Ayoub M, Sumbalova Z, Heidler J, Gauper K, Fasching M, Gnaiger E (2015) Simultaneous high-resolution measurement of mitochondrial respiration and hydrogen peroxide production. Methods Mol Biol 1264:245-61. - »Bioblast link«