Storage of materials
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United States of America Patent
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-
Jul 30, 2002
Issued Date -
N/A
app pub date -
May 24, 1999
filing date -
Jun 26, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Materials which are not themselves storage-stable at room temperature are made suitable for storage by mixing them with a carrier substance and spray drying the resulting mixture so as to form particles containing both the material and the carrier substance in which the carrier substance is in an amorphous, i.e. glassy or rubbery, state. Formation of such a composition greatly enhances stability. The material stored may be a biological material such as an enzyme, the components of a chemical reaction such as reagents for carrying out an assay, or even viable biological cells.
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