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Related Experiment Videos

Thermoelectrically cooled temperature-gradient apparatus for comparative cell and virus temperature studies.

H F Clark, F Kaminski, D T Karzon

    Applied Microbiology
    |May 1, 1970
    PubMed
    Summary

    Researchers developed a simplified temperature gradient incubator using thermoelectric cooling and electric heating. This new device allows for precise temperature control, aiding in the study of biological systems across various temperature ranges.

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    Virology·2000

    Area of Science:

    • Biotechnology
    • Incubation Technology
    • Cell Biology

    Background:

    • Traditional temperature gradient incubators are often complex and require mechanical refrigeration.
    • A need exists for simplified, efficient systems to study biological responses across temperature ranges.

    Purpose of the Study:

    • To describe a simplified temperature gradient incubator utilizing thermoelectric module cooling and electric heating.
    • To demonstrate the incubator's capability in establishing and controlling near-linear temperature gradients.
    • To highlight its applicability in biological research requiring precise temperature control.

    Main Methods:

    • A conducting body (metal bar) with heat applied to one terminus and removed from the other.
    • Integration of thermoelectric module cooling with electric heating for gradient generation.

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  • Monitoring of 20 stations along the gradient using an electronic thermometer for temperature recording.
  • Adjustment of temperature gradients via two potentiometer controls.

    • Main Results:

    • A simplified temperature gradient incubator was successfully established.
    • Reproducible temperature gradients between 0 and 50°C were achievable.
    • Minor deviations from theoretical gradients were measurable and reproducible.

    Conclusions:

    • The simplified gradient incubator is particularly applicable for studying biological activity across a range of temperatures.
    • It enables precise determination of upper and lower temperature limits for biological systems.
    • Preliminary experiments confirmed its utility in characterizing temperature limits for reptilian cell growth and amphibian virus plating efficiency.