A thermally baffled device for highly stabilized convective PCR

被引:69
作者
Chang, Hsiao-Fen Grace [3 ]
Tsai, Yun-Long [3 ]
Tsai, Chuan-Fu [3 ]
Lin, Ching-Ko [3 ]
Lee, Pei-Yu [4 ]
Teng, Ping-Hua [3 ]
Su, Chen [3 ]
Jeng, Chien-Chung [1 ,2 ]
机构
[1] Natl Chung Hsing Univ, Inst Nanosci, Taichung 407, Taiwan
[2] Natl Chung Hsing Univ, Dept Phys, Taichung 407, Taiwan
[3] GeneReach Biotechnol Corp, Dept Res & Dev, Taichung, Taiwan
[4] Cent Taiwan Univ Sci & Technol, Inst Med Biotechnol, Taichung, Taiwan
关键词
Methods; Rayleigh-Benard convective PCR; Thermally baffled PCR instrument; Yellow head virus; DIAGNOSIS; AMPLIFICATION; PATHOGENS; CELL;
D O I
10.1002/biot.201100453
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Rayleigh-Benard convective PCR is a simple and effective design for amplification of DNA. Convective PCR is, however, extremely sensitive to environmental temperature fluctuations, especially when using small- diameter test tubes. Therefore, this method is inherently unstable with limited applications. Here, we present a convective PCR device that has been modified by adding thermal baffles. With this thermally baffled device the influence from fluctuations in environmental temperature were significantly reduced, even in a wind tunnel (1 m/s). The thermally baffled PCR instrument described here has the potential to be used as a low-cost, point-of-care device for PCR-based molecular diagnostics in the field.
引用
收藏
页码:662 / 666
页数:5
相关论文
共 12 条
[1]   Avian influenza - Diagnosis [J].
Alexander, D. J. .
ZOONOSES AND PUBLIC HEALTH, 2008, 55 (01) :16-23
[2]   Integrated approaches for detection of plant pathogenic bacteria and diagnosis of bacterial diseases [J].
Alvarez, AM .
ANNUAL REVIEW OF PHYTOPATHOLOGY, 2004, 42 :339-366
[3]   Exponential DNA replication by laminar convection [J].
Braun, D ;
Goddard, NL ;
Libchaber, A .
PHYSICAL REVIEW LETTERS, 2003, 91 (15)
[4]   Diagnostic system for rapid and sensitive differential detection of pathogens [J].
Briese, T ;
Palacios, G ;
Kokoris, M ;
Jabado, O ;
Liu, ZQ ;
Renwick, N ;
Kapoor, V ;
Casas, I ;
Pozo, F ;
Limberger, R ;
Perez-Brena, P ;
Ju, JY ;
Lipkin, WI .
EMERGING INFECTIOUS DISEASES, 2005, 11 (02) :310-313
[5]   Rapid DNA amplification in a capillary tube by natural convection with a single isothermal heater [J].
Chou, Wen Pin ;
Chen, Ping Hei ;
Miao, Ming, Jr. ;
Kuo, Long Sheng ;
Yeh, Shiou Hwei ;
Chen, Pei Jer .
BIOTECHNIQUES, 2011, 50 (01) :52-57
[6]   Detection of pathogens in foods: the current state-of-the-art and future directions [J].
Dwivedi, Hari P. ;
Jaykus, Lee-Ann .
CRITICAL REVIEWS IN MICROBIOLOGY, 2011, 37 (01) :40-63
[7]   PCR in a Rayleigh-Benard convection cell [J].
Krishnan, M ;
Ugaz, VM ;
Burns, MA .
SCIENCE, 2002, 298 (5594) :793-793
[8]   Reactions and fluidics in miniaturized natural convection systems [J].
Krishnan, N ;
Agrawal, N ;
Burns, MA ;
Ugaz, VM .
ANALYTICAL CHEMISTRY, 2004, 76 (21) :6254-6265
[9]   A new quantitative method of real time reverse transcription polymerase chain reaction assay based on simulation of polymerase chain reaction kinetics [J].
Liu, WH ;
Saint, DA .
ANALYTICAL BIOCHEMISTRY, 2002, 302 (01) :52-59
[10]   Nucleic acid amplification-based diagnosis of respiratory virus infections [J].
Mahony, James B. .
EXPERT REVIEW OF ANTI-INFECTIVE THERAPY, 2010, 8 (11) :1273-1292