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US 10,368,541 B2Granted
Urine preservative reagent for microfiltration
AssigneeCreatv MicroTech, Inc.
InventorsPeixuan Zhu, Daniel Adams, Cha-Mei Tang
Life of this patent
Estimating the term…
Abstract
A preservative reagent for urine is disclosed that increases the stability of cells, such as tumor cells, in urine for a period of several weeks. The preservative reagent comprises polyethylene glycol (PEG), ethanol, paraformaldehyde (PFA), and ethylenediaminetetraacetic acid (EDTA), and optionally pH stabilizing reagents.
Claims8
A preservative reagent comprising a mixture of 2% (wt/vol) polyethylene glycol 1450 (PEG-1450), 50% (vol/vol) ethanol, 0.4% (wt/vol) paraformaldehyde (PFA), and 20 mM ethylenediaminetetraacetic acid (EDTA).
Dependencies are inferred from the claim text.