Evaluation of gold nanoparticles as the additive in real-time polymerase chain reaction with SYBR Green I dye

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	Evaluation of gold nanoparticles as the additive in real-time polymerase chain reaction with SYBR Green I dye
	Yang, WC ; Mi, LJ（米丽娟） ; Cao, XY ; Zhang, XD ; Fan, CH（樊春海） ; Hu, J（胡钧）
刊名	NANOTECHNOLOGY
	2008
卷号	19 期号:25
ISSN号	0957-4484
通讯作者	Zhang, XD (reprint author), Shanghai Jiao Tong Univ, Coll Life Sci & Biotechnol, Bio X Life Sci Res Ctr, Nanobiol Lab, Shanghai 200240, Peoples R China
英文摘要	Gold nanoparticles (AuNPs) have been proven to be able to improve the specificity or increase the efficiency of a polymerase chain reaction (PCR) when a suitable amount of AuNPs was used. However, there is still a lack of systematic evaluation of AuNPs in real-time PCR. In this study, DNA degradation and the fluorescence quenching effect of AuNPs were first tested in real-time PCR. Then two different kinds of Taq DNA polymerase, native and recombinant Taq polymerase, were employed to evaluate the AuNPs' effect on the threshold cycle (C(T)) values, standard curves and melting curves in real-time PCR. Different ratios of the amount of native Taq DNA polymerase to the amount of AuNPs were also tested. It was found that AuNPs could be applied in real-time PCR with correlation coefficient R(2) > 0.989. The combination of 2.09 nM AuNPs with 3.75 U of native Taq DNA polymerase could make the amplification curves shift to the left and enhance the efficiency of the real-time PCR (0.628 39 without AuNPs compared with 0.717 89 with 2.09 nM AuNPs), thus enabling faster detection in comparison with those of control samples. However, no improvement ability of AuNPs was found in real-time PCR based on recombinant rTaq DNA polymerase. Besides, the results suggest that a complex interaction exists between AuNPs and native Taq DNA polymerase.
学科主题	Physics
收录类别	SCI
语种	英语
WOS记录号	WOS:000256455800001
公开日期	2012-04-18
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/7725]
专题	上海应用物理研究所_中科院上海应用物理研究所2004-2010年
推荐引用方式 GB/T 7714	Yang, WC,Mi, LJ,Cao, XY,et al. Evaluation of gold nanoparticles as the additive in real-time polymerase chain reaction with SYBR Green I dye[J]. NANOTECHNOLOGY,2008,19(25).
APA	Yang, WC,Mi, LJ,Cao, XY,Zhang, XD,Fan, CH,&Hu, J.(2008).Evaluation of gold nanoparticles as the additive in real-time polymerase chain reaction with SYBR Green I dye.NANOTECHNOLOGY,19(25).
MLA	Yang, WC,et al."Evaluation of gold nanoparticles as the additive in real-time polymerase chain reaction with SYBR Green I dye".NANOTECHNOLOGY 19.25(2008).