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Synergistic pH effect for reversible shuttling aptamer-based biosensors between graphene oxide and target molecules

Journal of Materials Chemistry, ISSN: 0959-9428, Vol: 21, Issue: 25, Page: 8991-8993
2011
  • 54
    Citations
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    Usage
  • 54
    Captures
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    54
    • Citation Indexes
      54
  • Captures
    54

Article Description

DNA aptamers are known to desorb from graphene oxide (GO) surface in the presence of target molecules. We demonstrate herein that the binding equilibrium can be shifted by simply tuning the solution pH. At lower pH, the aptamer/GO binding is enhanced while aptamer/target binding is weakened, making this system a regenerable biosensor without covalent conjugation. © 2011 The Royal Society of Chemistry.

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