288342
Poly-L-lysine Hydrobromide, MW 52kD
Size
£288.00
- SKU:
- 288342
- Molecular Weight:
- 52
- Purity:
- Purified by dialysis, sterile-filtered on 0.2um, lyophilized, and stored under Ar.
- Storage Conditions:
- -20°C
- Supplier:
- United States Biological
- CAS Number:
- 25988-63-0
- Format:
- White to off-white solid
- Extra Details:
- Poly-L-lysine hydrobromide is a positively charged synthetic polyamino acid having one HBr per lysine unit. It is a crystalline solid soluble in water. Applications for poly-L-lysine hydrobromide include the promotion of cell adhesion to solid substrates for culture dishes or slides, the conjugation to active molecules for improved activities, the layer-by-layer deposition techniques, and the complexation with nucleic acids for gene expression. For cell culture applications, poly-L-lysine hydrobromide with a molecular weight greater than 30,000 Da is recommended. The poly-L-lysine hydrobromide (MW=52,000 Da) is easier to use because it is less viscous in solution; however, the poly-L-lysine hydrobromide with an higher molecular weight (MW=84,000 Da) has more attachement sites per polymer chain available to the cells. Poly-L-lysine hydrobromide has been purified by dialysis, sterile-filtered on 0.2um, lyophilized, and stored under Ar. Molecular Weight: 52kD Appearance: White to off-white solid Identity (NMR): Conforms to structure PDI (GPC): 1.0-1.2 MN (NMR, DLS, Viscosity): 47,000-57,500 DPn (NMR, DLS, Viscosity): 225-275 Solubility: 50mg/ml Water, clear solution Storage and Stability: Store by flushing with argon and protecting from light, and below -20°C.
- Shipping Conditions:
- Blue Ice