Project TitleNon-toxic Probe for Cell Staining Studies
Track Code2014-010
Short Description

Novel non-toxic reagent for specifically detecting a cell membrane component

#biomedical #materials #researchtool #reagent 


Northwestern University researchers have developed a new reagent for specifically staining phosphatidylethanolamine (PE) in cell membranes. PE is a major phospholipid found in cellular membranes, but it is difficult to study due to a dearth of molecular probes for its detection. There are only two specific PE binding molecules, and these exhibit toxicity when used in cell biology studies. This novel reagent modifies one of these PE-binding molecules such that its toxicity is drastically lowered. Furthermore, the staining process is simplified as this novel probe is rendered fluorescent by conjugation of GFP. This innovative staining reagent may enable many cell biology studies as it can be used in conjunction with flow cytometry and fluorescense microscopy for cell and tissue staining. 

Tagsbiomedical, materials, research tool: reagent
Posted DateMar 3, 2015 6:04 PM


Ming Zhao*

Songwang Hou


  • Live cell staining
  • Microinjection studies
  • Tissue and vesicular staining
  • Flow cytometry and fluorescence microscopy


  • Nontoxic
  • Simple, single step staining
  • Specific for PE
  • Intense fluorescent signal


IP Status

Provisional patent application has been filed.

Contact Information

Gwendolyn Humphreys, PhD

Invention Associate

(p) 847.467.0308