Me,Polyscience,Inc,Headquartered at Warrington,PA,Call vial 1(800)523-2575
Me,Polyscience,Inc,Manufacturing hundreds of specialty chemicals and reagents for laboratory research, Histology, Light Microscopy and Anatomic Pathology as well as other clinical and life science applications.
Me,Polyscience,Inc,Stocking a wide portfolio of monomers and polymers for research applications.
Me,Polyscience,Inc,Developed to be the primary source for organic, inorganic, biodegradable, magnetic, fluorescent, dyed and specific antibody and general protein coated particles in diameters spanning the range of 40nm to 10mm.
Me,Polyscience,Inc,Offering innovative polymer products to meet the high performance requirements of a variety of industries including alternative energy, automotive electronics, defense & aerospace electronics, portable communications& computing, medical device assembly, and more.
Soluble In:hot water, cold water at low pH, methanol, and ethanol.
Insoluble In: benzene, ethyl ether and acetone
Appearance
White to yellow solid
订购信息:【原装正品,现货供应,产品有特价,欢迎咨询】
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品牌
货号
名称
规格
报价(元)
Polyscience
23966-1
线性聚乙烯亚胺(MW 25,000)
1g
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另,提供更高转化效率的PEI Max 40,000,自由基形式分子量相当于PEI 25,000,研究证实其体外质粒DNA转染效率提高达21倍。
Polyscience
24765-1
线性聚乙烯亚胺盐酸盐Max,(MW 40,000)
(Equivalent to Mw 25,000 in Free Base Form)
1g
咨询
使用方法【来源于:CSH protocols,仅作交流学习】:
1. Pour ~450 mL of Milli-Q H2O into a 500-mL glass beaker.
2. Add 500 mg of PEI to the beaker with stirring.
3. Add concentrated HCl drop-wise to the solution to pH< 2.0.
4. Stir until the PEI is dissolved (~2-3 h). Maintain the pH< 2.0 throughout.
Approximately 800 μL of 12 M HCl will be required for full PEI dissolution. There may still be some small fiber particles that will not dissolve.
5. Add concentrated NaOH drop-wise to the solution to pH 7.0.
Approximately 500 μL of 10 M NaOH will be required to neutralize the PEI solution.
6. Pour the solution into a 500-mL glass cylinder. Adjust the final volume to 500 mL with Milli-Q H2O.
7. Filter-sterilize the solution through a 0.22-μm membrane.
8. Store aliquots of the desired volume at -20°C.
应用文献【基因转染用途】:
Zhong Z, Feijen J, Lok MC, Hennink WE, Christensen LV, Yockman JW, Kim YH, Kim SW. (2005). Low molecular weight linear polyethylenimine-b-poly(ethylene glycol)-b-polyethylenimine triblock copolymers: synthesis, characterization, and in vitro gene transfer properties.Biomacromolecules. 6(6):3440-8.
Sharon E. Reed, Elizabeth M. Staley, John P. Mayginnes, David J. Pintel(2006). Transfection of mammalian cells using linear polyethylenimine is a simple and effective means of producing recombinant adeno-associated virus vectors.Journal of Virological Methods.138(1–2): 85–98.
Patti A. Longo, Jennifer M. Kavran, Min-Sung Kim, and Daniel J. Leahy(2013)Transient Mammalian Cell Transfection with Polyethylenimine (PEI).Methods Enzymol. 529: 227–240.
Thomas M,et al(2005)研究数据表明,去乙酰化的PEI 40,000(Polyethylenimine MAX 40,000)体外质粒DNA转染效率提高21倍,小鼠体内靶向效率达到10,000倍,随之肺部特异疗效显示增强1500倍。
化学性质:
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CAS NO.
9002-98-6, 26913-06-4
Molecular Weight
40,000(~22,000 free base)
Solubility
Soluble In:Cold and room temperature water
Insoluble In: Common organic solvents (ethanol, acetone, tetrahydrofuran)
Appearance
White to off-white free flowing solid
订购信息:【原装进口,现货供应,产品有特价,欢迎咨询】
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品牌
货号
名称
规格
报 价(元)
Polyscience
24765-2
线性聚乙烯亚胺盐酸盐Max,(MW 40,000)
(Equivalent to Mw 25,000 in Free Base Form)
2g
咨询
另,提供基本型PEI 25,000。
Polyscience
23966-2
线性聚乙烯亚胺(MW 25,000)
2g
咨询
应用文献【基因转染用途】:
Mann JF, McKay PF, Arokiasamy S, Patel RK, Klein K, Shattock RJ. (2013). Pulmonary delivery of DNA vaccine constructs using deacylated PEI elicits immune responses and protects against viral challenge infection. J Control Release. 170(3):452-9.
Thomas M, Lu JJ, Ge Q, Zhang C, Chen J, Klibanov AM. (2005). Full deacylation of polyethylenimine dramatically boosts its gene delivery efficiency and specificity to mouse lung. Proc Natl Acad Sci U S A. 102(16):5679-84.