Research Article

Synthesis of Silica-Coated Magnetic Nanoparticles and Application in the Detection of Pathogenic Viruses

Figure 4

Electrophoresis result of PCR products of HBV specific gene using recovered DNA plasmids pGEM-HBV as templates. negative control, 100 bp DNA ladder, positive control: PCR product of purified pGEM-HBV, lane 1–8: PCR products using DNA plasmids after recovering by Fe3O4/SiO2 nanoparticles at tenfold diluted initial DNA concentrations, ranging from 4 × 109 copies/mL (lane 1) to 4 × 102 copies/mL (lane 8).
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