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外泌体提取试剂(沉淀法)

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江苏乐赛生物科技有限公司
13501696667 00000000
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Last Updated 2025-08-12 15:15

外泌体提取试剂(沉淀法)

原理
多元醇在较长时间低温条件下羟基可结合蛋白,在样本去除细胞碎片和其余不溶蛋白的前提下,多元醇可将可溶蛋白和外泌体一同离心沉淀。同创正业在原有多元醇沉淀剂的基础之上,优化了试剂配方使原来需要4℃沉淀过夜提高到只需4℃沉淀1-2小时即可达到外泌体沉淀完全。

产品特点
►快速提取:全过程缩短至3小时以内
►操作便捷:仅需离心→混合→4℃放置→离心等简单离心操作
►全样本覆盖:人血清、血浆,尿液、细胞培养上清通用

鉴定
检测外泌体经典方法为电镜、NTA和Western Blot,但由于样本材料的不同,沉淀法提取外泌体会有不同的可溶蛋白共沉淀,所以以上三种方法不适合反映沉淀法提取外泌体的质量。我们引入了外泌体中MicroRNA(MiR)定量检测来判定沉淀法提取外泌体的多少。

MiR qPCR试剂盒:
miRcute增强型miRNA cDNA第一链合成试剂盒 KR211 (天根生物)
miRcute增强型miRNA荧光定量检测试剂盒(SYBR Green)FP411(天根生物)
荧光定量PCR仪: ABI7500
MiR 靶标: let-7a


逆转录产物Let-7a倍比稀释(100-106 拷贝/微升)qPCR结果

竞争产品
ExoQuick ULTRA Solution SBI

竞争优势
优化了多元醇试剂配方使原来需要4℃沉淀过夜提高到只需4℃沉淀1-2小时即可达到外泌体完全沉淀。

Company Name 江苏乐赛生物科技有限公司
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