Life Science Biosensor Diagnostics Pty Ltd

Ael Mining Services Limited

Warwick Belcher

Paul Dastoor

Elmar Lennox Muller

Pieter Stephanus Jacobus Halliday

Clifford Gordon Morgan

Xiaojing Zhou

Glenn Bryant

Pieter Stephanus Halliday

Elmar Muller

The present invention relates to organic thin film transistors and the preparation and use thereof in sensing applications, and in particular in glucose sensing applications.

Organic thin film transistors and the use thereof in sensing applications

A transistor device () is disclosed comprising a source electrode () a drain electrode () and an enzyme () for facilitating generation of a charge carrier from an analyte. The transistor device also comprises a polymer layer () for retaining the enzyme (), the polymer layer () being conductive to the charge carrier. The device also comprises an ohmic conductor () in contact with said polymer layer () for applying a gate voltage to said polymer layer (). The device also comprises an organic semiconducting layer () connecting the source electrode () to the drain electrode (). Also disclosed is a method of making and using the device ().

Chemical sensor

An explosives detonator system includes a detonator housing within which is provided a detonation circuit that includes a conductive pathway having a fuse head integrated therewith such that the conductive pathway passes along both electrodes and a resistive bridge of the fuse head. An uncharged chargeable voltage source is also integrated with the detonation circuit and is electrically sensitive to a charging property which is included in a charging signal. Exposure to the charging property charges the voltage source, thereby rendering it capable of generating a potential difference between the electrodes at least to equal the breakdown voltage of the resistive bridge. The charging property is any one or more of a charging light pulse, a charging temperature, a charging pressure and a charging radio frequency.

Detonation of explosives

An explosives detonator system for detonating an explosive charge with which it is, in use, arranged in a detonating relationship is provided. On acceptance of a detonation initiating signal having a detonation initiating property, the system initiates and thus detonates the explosive charge. The system includes an initiating device which accepts the detonation initiating signal and initiates and thus detonates the explosive charge. The initiating device is initially in a non-detonation initiating condition, in which it is not capable of accepting the detonation initiating signal. The system also includes a radio frequency identification (RFID) based switching device that detects a switching property of a radio switching signal that is transmitted to the detonator system and switches the initiating device, on detection of the detonation initiating property, to a standby condition in which the initiating device is capable of operatively accepting the detonation initiating signal when it is transmitted thereto.

An explosives detonator system for detonating an explosive charge with which it is, in use, arranged in a detonating relationship is provided. On acceptance of a detonation initiating signal having a detonation initiating property, the system initiates and thus detonates the explosive charge. The system includes an initiating device which accepts the detonation initiating signal and initiates and thus detonates the explosive charge. The initiating device is initially in a non-detonation initiating condition, in which it is not capable of accepting the detonation initiating signal. The system also includes a switching device that detects a chemical compositional component as a switching property of a switching signal that is transmitted to the detonator system, with the switching device being capable of switching the initiating device, on detection of the chemical compositional component, to a standby condition in which the initiating device accepts the detonation initiating signal when it is transmitted thereto.

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Callaghan, Australia

Warwick Belcher