News Column

Reports Outline Biomolecular Research Study Results from Guangxi Normal University

June 17, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Life Science Research have been published. According to news originating from Guilin, People's Republic of China, by NewsRx correspondents, research stated, "In pH 7.2 Tris-HCl buffer solution containing 0.09 mol/L NaCl at 80 degrees C, the single-stranded substrate DNA hybrids with the enzyme DNA to form double-stranded DNA (dsDNA)."

Our news journalists obtained a quote from the research from Guangxi Normal University, "The substrate chain of dsDNA could be cracked catalytically by Pb2+ to produce a short single-stranded DNA (ssDNA) that adsorbed on the AucoreAgshell nanoparticle (Au/AgNP) surface to form stable Au/AgNP-ssDNA conjugate to prevent aggregation by NaCl, and it combined with rhodamine 6G (RhG) to form RhG-Au/AgNP-ssDNA probe that exhibited a strong surface-enhanced resonance Raman scattering (SERRS) peak at 1510 cm(-1). With the increase of Pb2+ concentration, the SERRS peak increased linearly due to the more RhG-Au/AgNP-ssDNA probe forming."

According to the news editors, the research concluded: "Under the selected conditions, the increased SERRS intensity Delta I was linear to Pb2+ concentration in the range of 5.0 x 10(-8)-7.0 x 10(-7) mol/L, with a detection limit of 7 x 10(-9) mol/L Pb2+."

For more information on this research see: Quantitative analysis of trace Pb(II) by a DNAzyme cracking-rhodamine 6G SERRS probe on AucoreAgshell nanosol substrate. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 2014;128():806-811. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England (see also Life Science Research).

The news correspondents report that additional information may be obtained from Q.Y. Liu, Guangxi Normal Univ, Guangxi Key Lab Environm Pollut Control Theory &, Educ Minist, Key Lab Ecol Rare & Endangered Species & Environm, Guilin 541004, People's Republic of China. Additional authors for this research include Y.Y. Wei, Y.H. Luo, A.H. Liang and Z.L. Jiang.

Keywords for this news article include: Asia, Guilin, DNA Research, Life Science Research, People's Republic of China

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Source: Life Science Weekly

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