The effect of temperature on electrochemically driven denaturation monitored by SERS

作者: Evanthia Papadopoulou , Marta Meneghello , Pietro Marafini , Robert P. Johnson , Tom Brown

DOI: 10.1016/J.BIOELECHEM.2015.06.007

关键词:

摘要: Scanning the electrochemical potential negative results in gradual denaturation of dsDNA immobilised at a nanostructure gold electrode, DNA melting is monitored by SERS. We demonstrate effect experimental temperature on electrochemically driven (E-melting) carrying out experiments between 10 and 28 °C using two duplexes (20 21 base pairs). Significant dependence for both potentials, Em, steepness curves was found over range to 18 °C. Above were be independent temperature. The relative insensitivity potentials above advantageous application technique because precise control not necessary measurements that are carried around room Conversely below offers way improve discrimination highly similar sequences.

参考文章(51)
A. J. deBethune, T. S. Licht, N. Swendeman, The Temperature Coefficients of Electrode Potentials Journal of The Electrochemical Society. ,vol. 106, pp. 616- 625 ,(1959) , 10.1149/1.2427448
Paul W. Whitby, Karen B. Carter, Jane L. Burns, James A. Royall, John J. LiPuma, Terrence L. Stull, Identification and detection of Stenotrophomonas maltophilia by rRNA-directed PCR. Journal of Clinical Microbiology. ,vol. 38, pp. 4305- 4309 ,(2000) , 10.1128/JCM.38.12.4305-4309.2000
Feng Gao, Peng Cui, Xiaoxiao Chen, Qingqing Ye, Maoguo Li, Lun Wang, A DNA hybridization detection based on fluorescence resonance energy transfer between dye-doped core-shell silica nanoparticles and gold nanoparticles Analyst. ,vol. 136, pp. 3973- 3980 ,(2011) , 10.1039/C1AN15287D
Robert P. Johnson, James A. Richardson, Tom Brown, Philip N. Bartlett, Real-time surface-enhanced Raman spectroscopy monitoring of surface pH during electrochemical melting of double-stranded DNA Langmuir. ,vol. 28, pp. 5464- 5470 ,(2012) , 10.1021/LA204794G
Yougen Li, Yen Thi Hong Cu, Dan Luo, None, Multiplexed detection of pathogen DNA with DNA-based fluorescence nanobarcodes Nature Biotechnology. ,vol. 23, pp. 885- 889 ,(2005) , 10.1038/NBT1106
Robert P. Johnson, Rachel Gao, Tom Brown, Philip N. Bartlett, The effect of base-pair sequence on electrochemically driven denaturation. Bioelectrochemistry. ,vol. 85, pp. 7- 13 ,(2012) , 10.1016/J.BIOELECHEM.2011.11.003
Evanthia Papadopoulou, Steven E. J. Bell, Label‐Free Detection of Single‐Base Mismatches in DNA by Surface‐Enhanced Raman Spectroscopy Angewandte Chemie. ,vol. 50, pp. 9058- 9061 ,(2011) , 10.1002/ANIE.201102776