Abstract: A programmable spray device that is portable and its spray method. The programmable spray device includes a plurality of spray modules and a control module. Each spray module is used to contain different fluids. The control module is used to receive a control signal outputted from a processing device, and to control each spray module to spray according to the control signal. The processing device includes a multimedia play module generating the control signal while playing a multimedia content, and the control module controls each spray module to execute variations of spraying coordinated to the multimedia content.

Abstract: The present invention discloses a plastic potentiometric ion-selective sensor based on field-effect transistors which can be fabricated to form the miniaturized component via sputtering and/or printing method. A plastic potentiometric ion-selective sensor doesn't need an additional bias voltage to convert the signals. The disclosed plastic sensor comprises a plastic substrate, at least one working electrode formed on the plastic substrate, a reference electrode printed on the substrate, and a golden finger printed on the plastic substrate. The golden finger is for electrically coupling with the external world and for outward transmission of signals detected at the working electrode and the reference electrode. The disclosed plastic potentiometric ion-selective sensor is replaceable.

Abstract: A planar integrated ion sensor has a planar substrate, a working electrode assembly, a reference electrode assembly and an exchange junction. The working electrode assembly is mounted on one surface of the planar substrate and has an ion selective electrode, a working conductor electrically coupled with the ion selective electrode and a working barrier partially covering the ion selective electrode and the working conductor. The reference electrode assembly has a reference electrode, a reference conductor electrically coupled with the reference electrode, a reference barrier partially covering the reference electrode and the reference conductor and a hood with an inner space filled with electrolyte. The exchange junction allows communication between a liquid sample and the electrolyte in the inner space of the hood. The present invention has a decreased volume, is easily portable and is convenient for an operator to determine ion concentration in the liquid sample without incorporating other device.