All Photos(5)



Poly-L-ornithine hydrobromide

mol wt 30,000-70,000

CAS Number:
MDL number:



Quality Level

mol wt



cell culture | mammalian: suitable


white to off-white

storage temp.


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Poly-L-ornithine hydrobromide has been used to coat coverslips in culture vessels for culturing neural progenitor cells. It has also been used to coat culture plates for culturing cerebral cells of mice.


10, 50, 100, 500 mg in poly bottle
1 g in poly bottle

Biochem/physiol Actions

Poly-L-ornithine is a specialized coating that acts as a charge modifier. It is a polycationic synthetic amino acid polymer. It boosts nasal absorption of hydrophilic macromolecular drugs.

Analysis Note

Molecular weight based on viscosity. Also assayed by MALLS.

Other Notes

For additional technical information on polyamino acids please visit the Polyamino acid FAQ resource.

Storage Class Code

11 - Combustible Solids

WGK Germany


Flash Point F

Not applicable

Flash Point C

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Preparation and Evaluation of PEGylated Poly-L-ornithine Complex as a Novel Absorption Enhancer
Yusuke Kamiya
Biologicals : Journal of the International Association of Biological Standardization (2017)
Isolation, characterization, and differentiation of multipotent neural
progenitor cells from human cerebrospinal fluid in fetal
cystic myelomeningocele
Mario Marotta
Stem Cell Research (2017)
FGF2 and Insulin Signaling Converge to Regulate Cyclin D Expression in Multipotent Neural Stem Cells
Adedamola Adepoju
Stem Cell Research (2013)
A R Boccaccini et al.
Journal of the Royal Society, Interface, 7 Suppl 5, S581-S613 (2010-05-28)
Electrophoretic deposition (EPD) is attracting increasing attention as an effective technique for the processing of biomaterials, specifically bioactive coatings and biomedical nanostructures. The well-known advantages of EPD for the production of a wide range of microstructures and nanostructures as well...
S K Tam et al.
Acta biomaterialia, 7(4), 1683-1692 (2010-12-15)
There is a need for better understanding of the biocompatibility of alginate-polycation microcapsules based on their physicochemical characteristics. Microcapsules composed of alginate with 44% (IntG) or 71% (HiG) guluronate, gelled with calcium (Ca) or barium (Ba) and coated with poly-L-lysine...


Poly(Amino Acid) Block Copolymers for Drug Delivery and other Biomedical Applications

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