Stephen M. Hewitt, Potomac, MD (US); Joon-Yong Chung, Rockville, MD (US); Candice D. Perry, Gaithersburg, MD (US); and Robert A. Star, Bethesda, MD (US)
Assigned to The United States of America, as represented by the Secretary, Department of Health and Human Services, Bethesda (MD)
Filed by The United States of America, as represented by the Secretary, Dept. of Health and Human Services, Bethesda, MD (US)
Filed on Apr. 8, 2022, as Appl. No. 17/716,606.
Application 17/716,606 is a continuation of application No. 15/774,480, granted, now 11,313,772, previously published as PCT/US2016/061642, filed on Nov. 11, 2016.
Claims priority of provisional application 62/255,030, filed on Nov. 13, 2015.
Prior Publication US 2022/0291094 A1, Sep. 15, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 1/30 (2006.01)
CPC G01N 1/30 (2013.01) [G01N 2001/307 (2013.01)]
19 Claims
1. A fixative comprising 70% ethanol, 0.5× phosphate-buffered saline, and at least one guanidinium salt.