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An enzyme-free electrochemical sandwich DNA assay based on the use of hybridization chain reaction and gold nanoparticles: application to the determination of the DNA of Helicobacter pylori
An ultrasensitive enzyme-free electrochemical sandwich DNA biosensor is described for the detection of ssDNA oligonucleotides. A DNA sequence derived from the genom of Helicobacter pylori was selected as a model ...
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Calculation of the maximum bond order
Based on the maximum overlap method, an alternative scheme for the calculation of the maximum bond order defined by Jug is introduced to simplify the calculation procedure.