- ¥1124
- Sigma
- P8920-100ML
- Sigma
- 2025年08月17日
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- 英文名：
Poly-L-lysine solution
- 供应商：
上海研卉生物科技有限公司
- 库存：
2
- 规格：
100ml
Poly-L-lysine solution
多聚L-赖氨酸
0.1 % (w/v) in H2O
Components
Poly-L-lysine is a positively charged amino acid polymer with approximately one HBr per lysine residue. The hydrobromide allows the poly-L-lysine to be in a crystalline form soluble in water. A small amount of product may be found in the beta structure because the HBr interferes with hydrogen bonding between amino and either the carboxyl groups or N or O containing moieties.
Application
Poly-L-lysine polymers can be used in promoting cell adhesion to solid substrates, conjugation to methotrexate for increased drug transport, microencapsulation of islets, cell microencapsulation technology, microarray glass slide coating, and chromosomal preparations. Lower molecular weight poly-L-lysine (30,000-70,000) is less viscuous in solution, but higher molecular weight versions provide more attachment sites per molecule.
Biochem/physiol Actions
Poly-L-lysine is a nonspecific attachment factor for cells useful in promoting cell adhesion to solid substrates by enhancing electrostatic interaction between negatively charged ions of the cell membrane and the culture surface. When it is absorbed to the cell culture surface, poly-L-lysine functions to increase the number of positively charged sites available for cell binding. With cells that can digest poly-L-lysine, poly-D-lysine should be used as the attachment factor.
Preparation Note
This product is supplied as a 0.10% (w/v) solution in water. Coating slides with this solution should be followed with a 5 minute incubation and drying the slides at room temperature. Coated slides will be stable for one year if protected from dust.
| helf life | Expiry date on the label. |
| mol wt | mol wt 150,000-300,000 |
| concentration | 0.1 % (w/v) in H2O |
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文献和实验多聚赖氨酸（Poly-L-Lysine）的配制、保存、使用总结
用多聚赖氨酸涂片培养细胞,不知道多聚赖氨酸涂过的玻片如何灭菌？能否干烤灭菌？答：Sigma的产品说明书上写的很明白的。另外，有本书上是这么写的，供参考：Poly-lysine-coated tissue culture surfacesTo coat coverslips: Prepare a stock solution by dissolving 25 mg/ml polylysine in 4.73 ml water (both poly-L-lysine and poly-D-lysine
多聚赖氨酸溶液（Poly-L-Lysine Solution） Cat.No.: SGP8920 Size: 10ml Conc.: 0.1% w/v, in water Storage: 18-26℃ Thimerosal, 0.01%, added as preservative 多聚赖氨酸溶液是广泛应用的组织切片与玻片黏合剂，该多聚阳离子分子与组织切片上的阴离子相互作用会产生较强的黏合力。 适用组织学，免疫组织化学，冰冻切片，细胞
变性者，建议用滤器（0.22），多聚赖氨酸为氨基酸类，建议用滤器，如果要求程度高，可以两个滤器过滤两次。 七、资料：多聚赖氨酸溶液（Poly-L-Lysine Solution）Conc.: 0.1% w/v, in water Storage: 18-26℃Thimerosal, 0.01%, added as preservative 多聚赖氨酸溶液是广泛应用的组织切片与玻片黏合剂，该多聚阳离子分子与组织切片上的阴离子相互作用会产生较强的黏合力。 适用组织
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