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An ultrasensitive signal-on electrochemical aptasensor for ochratoxin A determination based on DNA controlled layer-by-layer assembly of dual gold nanoparticle conjugates

EngineeringBiochemistryBioelectrochemistryNatural SciencesBioanalysisAnalytical ChemistryElectroanalytical SensorChemistryNanosensorLayer-by-layer AssemblyElectrochemistry