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  2. Protein precipitation - Wikipedia

    en.wikipedia.org/wiki/Protein_Precipitation

    Protein precipitation is widely used in downstream processing of biological products in order to concentrate proteins and purify them from various contaminants. For example, in the biotechnology industry protein precipitation is used to eliminate contaminants commonly contained in blood. [ 1 ]

  3. Ammonium sulfate precipitation - Wikipedia

    en.wikipedia.org/wiki/Ammonium_sulfate_precipitation

    Ammonium sulfate precipitation is a useful technique as an initial step in protein purification because it enables quick, bulk precipitation of cellular proteins. [4] It is also often employed during the later stages of purification to concentrate protein from dilute solution following procedures such as gel filtration .

  4. Salting out - Wikipedia

    en.wikipedia.org/wiki/Salting_out

    Unwanted proteins can be removed from a protein solution mixture by salting out as long as the solubility of the protein in various concentrations of salt solution is known. After removing the precipitate by filtration or centrifugation , the desired protein can be precipitated by altering the salt concentration to the level at which the ...

  5. Hofmeister series - Wikipedia

    en.wikipedia.org/wiki/Hofmeister_series

    The denaturing of proteins by an aqueous solution containing many types of ions is more complicated as all the ions can act, according to their Hofmeister activity, i.e., a fractional number specifying the position of the ion in the series (given previously) in terms of its relative efficiency in denaturing a reference protein.

  6. Lists of death tolls - Wikipedia

    en.wikipedia.org/wiki/Lists_of_death_tolls

    List of disasters in Canada by death toll; List of disasters in Croatia by death toll; List of disasters in Estonia by death toll; List of disasters in Great Britain and Ireland by death toll; List of disasters in Japan by death toll; List of disasters in Malta by death toll; List of disasters in New Zealand by death toll

  7. Immunoprecipitation - Wikipedia

    en.wikipedia.org/wiki/Immunoprecipitation

    Immunoprecipitation of intact protein complexes (i.e. antigen along with any proteins or ligands that are bound to it) is known as co-immunoprecipitation (Co-IP). Co-IP works by selecting an antibody that targets a known protein that is believed to be a member of a larger complex of proteins.

  8. List of accidents and disasters by death toll - Wikipedia

    en.wikipedia.org/wiki/List_of_accidents_and...

    This is a list of accidents and disasters by death toll. It shows the number of fatalities associated with various explosions , structural fires , flood disasters , coal mine disasters , and other notable accidents caused by negligence connected to improper architecture , planning , construction , design , and more.

  9. Heller's test - Wikipedia

    en.wikipedia.org/wiki/Heller's_test

    Concentrated nitric acid is added to a protein solution from the side of the test tube to form two layers. A white ring appears between the two layers if the test is positive. [1] Heller's test is commonly used to test for the presence of proteins in urine. [2] This test was discovered by the Austrian Chemist, Johann Florian Heller (1813-1871).