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Molecules 2008, 13(12), 3057-3068; doi:10.3390/molecules13123057
Article

An Emulsion System Based on a Chip Polymerase Chain Reaction

1
, 1
, 2
 and 1,2,*
1 Key Laboratory of Child Development and Learning Science, Ministry of Education, Southeast University, Nanjing, 210096, P.R. China 2 State Key Laboratory of Bioelectronics, Southeast University, Nanjing, 210096, P.R. China
* Author to whom correspondence should be addressed.
Received: 12 November 2008 / Revised: 30 November 2008 / Accepted: 2 December 2008 / Published: 9 December 2008
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Abstract

In this paper we describe a novel method for detecting many DNA fragments through efficient amplification by using an emulsion system based on “on-chip” PCR instead of conventional multiplex polymerase chain reaction (PCR). During the preparation of on-chip PCR, a set of primers were immobilized on a slide and other sets were in an emulsion system. Different emulsion phase primers and other related PCR components were dispersed in different droplets of the emulsion system, and then, due to the thermal instability of emulsion droplets, they would be released onto the surface of the slide after preheating in the first PCR step. To test the above method, we used plasma DNAs from pregnant women who was carrying a male fetus for gender identification. Four different Y chromosome DNA fragments were selected. Results showed that different DNA fragments could be simultaneously amplified with satisfactory results. It is suggested that a simple, convenient and inexpensive on-chip PCR method has been developed.
Keywords: PCR amplification; Emulsion; Immobilized primers PCR amplification; Emulsion; Immobilized primers
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Ge, Q.; Yu, P.; Bai, Y.; Lu, Z. An Emulsion System Based on a Chip Polymerase Chain Reaction. Molecules 2008, 13, 3057-3068.

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