Abstract: A food quality indicator includes a bio-indicator insert interposed between a gas-permeable, waterproof base and an impervious transparent cover, the base and the cover being sealed together about their peripheries to completely enclose the bio-indicator insert therebetween. The bio-indicator insert includes a porous substrate onto which a biosensor solution is applied, the biosensor solution being at least partially externally visible through the transparent cover. In use, the biosensor solution is adapted to change color within a defined color range that is dependent upon the concentration of amines detected. In this manner, the food quality indicator provides a visual indication of the state of microbial spoilage experienced by a food product in close proximity thereto. Due to its unitary, compact, durable and waterproof design, the food quality indicator can be used in a variety of potential applications and integrated into an array of different products, such as food storage containers.

Abstract: A massage pad with heat that wraps to the knee joint providing massage therapy and heat. The knee pad is designed to be wrapped securely around the knee; this holds the massaging and heating elements against the knee joint while the pad is designed to allow bending of the knee for individual use. The pad is controlled with a controller for selecting the degree of heat and one or more massage actuators to provide a variety of massaging to the knee.