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单词 denature
释义
denature

Physics
  • To add another isotope to a fissile material to make it unsuitable for use in a nuclear weapon.


Chemistry
  • 1. To add a poisonous or unpleasant substance to ethanol to make it unsuitable for human consumption (see methylated spirits).

    2. To produce a structural change in a protein or nucleic acid that results in the reduction or loss of its biological properties. Denaturation is caused by heat, chemicals, and extremes of pH. The differences between raw and boiled eggs are largely a result of denaturation.

    3. To add another isotope to a fissile material to make it unsuitable for use in a nuclear weapon.


Chemical Engineering
  • 1. To produce an irreversible structural change in a protein or nucleic acid that results in the total or partial biological inactivation. Denaturation can be caused by certain chemicals, high temperature, very low and high pH, ionizing radiation, and UV light.

    2. To add a poisonous or unpleasant smelling substance to ethanol to make it unsuitable for human consumption.


Biology
  • To produce a structural change in a protein or nucleic acid that results in the reduction or loss of its biological properties. Denaturation involves unfolding of the polypeptide chains of proteins and of the double helix of nucleic acids, with loss of secondary and tertiary structure; it is caused by heat (thermal denaturation), chemicals, and extremes of pH. The differences between raw and boiled eggs are largely a result of denaturation. Compare renaturation.


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