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一種基于反相微乳液的數(shù)字PCR微滴的制備方法

Preparation of droplets in digital PCR based on inverse microemulsion

作者: 童石淵  馮繼宏  白樺娟 
單位:北京工業(yè)大學生命科學與生物工程學院(北京100124)
關(guān)鍵詞: 數(shù)字PCR;微滴式dPCR;油包水;微滴生成;電泳;脫氧核糖核酸 
分類號:R318;Q781
出版年·卷·期(頁碼):2017·36·5(517-519)
摘要:

目的 提出一種新型的微滴生成方式——油包水(W/O)包裹技術(shù),為數(shù)字PCR實驗過程中微滴的制備提供一種更便捷的方式。方法 通過配制一定比例的特定油相以及包含模板DNA等反應物的特定水相,在不同條件下形成W/O微滴,并進行PCR反應。結(jié)果 所形成的微滴粒徑大小均勻,并且在進行PCR反應過程中熱力學性能保持不變,微滴不會因溫度升降而破裂,適合于數(shù)字PCR中微滴的制備。結(jié)論 生成的微滴可以有效地使模板DNA進行擴增反應。


Objective A new method for preparation of droplets is presented:wrapping technique for water-in-oil (W/O) ,it provides a more convenient way for the digital PCR experiment.Methods We formulated a certain percentage of particular oil phase with water phase containing the template DNA,maked the mixture to form W/O droplets,then carried out PCR reactions.Results The size of droplets prepared was uniform.Droplets’ thermodynamic properties remained constant during the PCR reactions,and the droplet didn’t rupture with the temperature changes.Conclusions The electrophoresis test results show that we make the amplification reaction of the template DNA successfully.

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