Technical Notes

Improve and optimize your cell culture

If you’ve worked with cell cultures, you’re probably familiar with the term ‘normoxia,’ which refers to the standard 21% oxygen level used in many labs. But did you know that most cells in the human body actually experience much lower oxygen levels, typically between 1 to 8%? This is called ‘physioxia,’ or physiologic oxygen. This video explores why mimicking these conditions can significantly improve your cell culture outcomes.


Learn about the benefits and implementation of physioxic low oxygen conditions in embryo culture to optimize in vitro fertilization (IVF) outcomes.


Explore how autophagy is differentially regulated under varying oxygen levels.



Physiological oxygen is a fundamental factor shaping immune cell metabolism, signaling, activation, and effector functions.

Learn how varying oxygen levels, specifically hypoxia and physioxia, impact cellular metabolism by altering pathways related to energy production, redox balance, biosynthesis, and signaling.


Improve your organoid cultures by understanding how low oxygen better replicates the in vivo microenvironment, enhances stem cell maintenance, and improves the functionality and maturation of organoids.


Watch to uncover the potential of low oxygen in optimizing adoptive cell therapies.



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Explore the differences in neuronal cell behavior under low oxygen (physiological) compared to atmospheric oxygen conditions and gain insights into optimizing neuronal cell culture systems.

Explore the importance of hypoxia in stem cell culture, the molecular pathways involved, and its implications for optimizing stem cell applications.


A quick summary on the latest key points for malaria research and discovery.


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Watch to learn how hypoxia drives epigenetic changes leading to cellular changes.



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Discover how the hypoxic tumor microenvironment fuels cancer growth.


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Learn about the key advancements that have driven our understanding of cellular responses to hypoxia in this infographic timeline.

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Hypoxia can induce mass transcriptomic and proteomic changes across many different cell types, supporting the concept that the status of cells at normoxic conditions are not the same as those at physiologic or low oxygen.



The Modular Incubator Chamber (MIC-101) has a set of unique characteristics that provide distinct advantages over standard continuous flow CO2 incubators.

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Check out our table summarizing data on published physioxic conditions tested for various cell lines and primary cells and the experimental outcomes.

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The answer is: never. Learn more about why.




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Studies clearly show that cells cultured under appropriate physiological conditions express regulator genes in vivo that are silent under normoxic (21% O2) concentration.

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Evaporation of media in multi-well plates, placed in traditional CO2 incubators, can exceed 15 to 25% in outside and corner wells, respectively!

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Learn more about the background and importance of Hypoxia-Inducible Factor 1 (HIF-1) in regulating functions across many cell types.

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