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A smartphone-integrated colorimetric sensor of total volatile basic nitrogen (TVB-N) based on Au@MnO2 core-shell nanocomposites incorporated into hydrogel and its application in fish spoilage monitoring

Chemical EngineeringSmartphone-integrated Colorimetric SensorEngineeringSensorsSensor DesignNanosensorSensor ApplicationFish Spoilage MonitoringChemical SensorSensor Technology