Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

Abstract: A method of real-time freshness monitoring of a perishable item in a retail store, a consumer home, or within a supply chain, includes an initial step of placing a sensor device for detecting freshness in proximity with the perishable item. The sensor device comprises a sensor for detecting an analyte of interest in the perishable item, an integrated circuit for converting information detected by the sensor into a signal, and an antenna portion for receiving and transmitting the signal from the integrated circuit. The signal received from the sensor device is then analyzed via a software application running on a receiving device, and relevant information pertaining to the freshness of the perishable item can subsequently be displayed on the receiving device.

Abstract: A method of making a sensor tag includes an initial step of printing a sensor on a portion of a substrate by a rotary screen printing process. An integrated circuit chip in then placed on the substrate. Subsequently, a non-conductive immobilization coating is provided over the integrated circuit chip to thereby produce the sensor tag.

Abstract: A method for detecting freshness of a perishable item includes placing a sensor device for detecting freshness in proximity with the perishable item. An analyte of interest from the perishable item is then detected and the associated data is converted into a signal. The signal is transmitted from the sensor device to a receiving device, and data within the signal is subsequently analyzed via a software application running on the receiving device. The signal is decoded during the analysis and the decoded signal converted into information containing a unique identifier for the perishable item. The unique identifier links to any specific information of the perishable item to thereby determine a freshness data point of the perishable item and match the freshness data point with a predicted trend for spoilage of the perishable item.

Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

Abstract: A freshness sensor includes a cap housing a sensor element and a spike extending away from a lower surface of the cap. The spike defines a cavity in fluid communication with the sensor element and the spike includes an expansion portion configured to expand after the spike is inserted into packaging housing a perishable product, so as to form a hollow in the packaging or perishable product and thereby allow gas exchange between the hollow and the sensor element by way of the cavity.

Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.

Abstract: A device for detecting freshness of a perishable item is provided. The device includes at least one sensor for detecting an analyte of interest in the perishable item. The device further includes an integrated circuit for converting information detected by the sensor into a signal. The device also includes an antenna portion for receiving and transmitting the signal from the integrated circuit. The at least one sensor, integrated circuit and antenna portion are printed on a single sheet such that the device is unitary.