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- 详细信息
- 文献和实验
- 技术资料
- 库存:
50
- 英文名:
Millipore 0.45 PVDF膜(6.6×8.5cm)
- 供应商:
上海博尔森生物科技有限公司
- 保存条件:
RT
- 规格:
10张/包
- Millipore offers four different Immobilon PVDF membranes, each optimized for different protein blotting applications.
Immobilon PVDF membranes provide many advantages compared to nitrocellulose. They won’t crack or curl, and they can be cut without fracturing. They also have low background, broad solvent compatibility, and superior staining capabilities. In addition, they can be reprobed multiple times.
Immobilon-P Transfer Membrane:
- 45 µm pore size Recommended for most western blotting, especially proteins greater than 20 kDa
- Millipore's Rapid Immunodetection Protocol reduces detection times by up to 2 hours by eliminating membrane blocking and several wash steps with no loss of sensitivity or specificity
Immobilon-E Membrane:
- the only PVDF membrane that wets out in aqueous buffers, eliminating the methanol pre-wet step.
- 45 µm pore size recommended for most western blotting, especially proteins greater than 20 kDa
Blotting Sandwiches:
- When you need to process multiple blots, blotting sandwiches are a convenient, time-saving choice. Our sandwiches include sheets of Immobilon-P membrane interleaved with pre-cut sheets of chromatography-grade blotting filter paper and are compatible with any standard wet transfer device.
Blotting Filter Paper:
- Chromatography-grade blotting filter paper pre-cut to the most popular western blotting sizes.
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文献和实验:millipore PVDF膜 0.45 um 转膜方式(恒压、恒流):湿转,恒流0.3A。 转膜时间:180min 设备:“Bio-Rad ” 建议:电转保持电压在70 V以上,保持低温,如果电压低过70就需要换缓冲液了。 蛋白来源:白血病细胞
类型;硝酸纤维素膜是目前应用最广的一种固相支持物,价格最便宜;PVDF膜介于二者之间。就 结合能力而言:尼龙膜结合DNA和RNA能力可达480-600μg/cm2,可结合短至10bp的核酸片段;硝酸纤维素膜结合DNA和RNA能力可达 80-100μg/cm2,对于200bp的核酸片段结合能力不强;PVDF膜结合DNA和RNA能力可达125-300μg/cm2。就温度适应性而言:尼龙膜经烘烤或紫外线照射后,核酸中的部分嘧啶碱基可与膜上的正电荷结合;硝酸纤维素膜依靠疏水性相互作用结合DNA,结合不牢
不同孔径的NC膜。因为随着膜孔径的不断减小,膜对低分子量蛋白的结合就越牢固。通常用0.45µm和0.2µm两种规格的NC膜。大于20kD的蛋白可用0.45µm的膜,小于20kD的蛋白就要用0.2µm的膜了,如用0.45µm的膜就会发生“Blowthrough”的现象。PVDF膜灵敏度、分辨率和蛋白亲和力比常规的膜要高,非常适合于低分子量蛋白的检测。但PVDF膜在使用之前必需用纯甲醇浸泡饱和1-5秒钟。 蛋白质常用的转移方法主要有两种:槽式湿转和半干转移。前者操作容易,转移效率高;而后者适用
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