...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7371534 | Sensitive intracellular calcium assay A sensitive intracellular calcium assay is disclosed comprising conveniently a reagent comprised of a dye precursor capable of entering cells and being hydrolyzed to a dye, whereby the dye complexes with calcium in the cells and provides a luminescent signal, an ant... | 05/13/2008 |
| 7202043 | Detecting cell membrane protein endocytosis Methods and reagents are provided for determining endocytosis, using a cell expressing an externally polypeptide labeled cell membrane receptor, and as a reagent an antibody to said label conjugated to a fragment of an enzyme fragment complementation pair. Compounds... | 04/10/2007 |