Osmetech Plc

Aromascan Plc

The University of Manchester

Peter Cox Limited

Krishna Chandra Persaud

Peter Alfred Payne

Allan John Syms

Paolo Pelosi

Peter A Payne

Mohammed El Hassan Amrani

Peter Darren Wareham

John Ronald Cronly-Dillon

Soad Mohialdin-Khaffaf

A method and apparatus for the detection of trace volatiles such as those produced by fungal decay of timber, comprising a sampling probe (), comprising a housing () and bored barrel () adapted removably to receive an SPME device () in which a coated tipped fiber () is guided within a needle sheath () into the barrel (), and a pump () is energized to draw a fluid sample over the fiber tip within the bore of the barrel. A motor () advances and retracts the SPME device () and its fiber () for a sample to be captured thereby and the captured sample is then released within an instrument having an array of gas sensors whereby any trace volatiles captured by and released from the coated fiber () may then be analyzed by computer software to produce a fingerprint for the location and identification of the presence of trace volatiles at a site into which the sampling probe is introduced. Thus, there is provided a robust device for the protective and easy introduction of an SPME fiber into a sampling environment where such devices conventionally could not be used.

Method and apparatus for detection of trace volatiles

A method enabling a person to visualize images including encoding spatial information relating to a feature or features contained within an image into the form of one or more musical sequences, and playing the musical sequence or sequences to the person.

Method and device for visualizing images through sound

A method for detecting the occurrence of a condition in a respiring subject includes the steps of: introducing emitted subject respiratory gases to a gas sensing device; detecting certain species present in the emitted subject respiratory gases with the gas sensing device; and correlating the presence of the species with the occurrence of the condition.

Detection of conditions by analysis of gases or vapours

A microorganism analyzer has a flow-through arrangement into which a microorganism-containing sample may be introduced, and a headspace connected or connectible to a gas analyzer. The headspace is connected to the flow-through arrangement so as to be affected by the sample.

Microorganism analysis means

There is disclosed a method for interrogating a sensor comprising the steps: applying a periodic electrical signal to the sensor; obtaining a signal therefrom; and performing an operation on the obtained signal to obtain the sensor response at a plurality of frequencies, said operation including a transformation to the frequency domain of said signal or a quantity related to said signal.

Sensor interrogation

The invention discloses a method for monitoring at least one condition in a patient comprising the steps of (a) obtaining samples from the patient over a period of time; (b) flowing the samples, or gases associated with or produced by the samples, over at least one gas sensor; c) measuring the response or responses of the at least one gas sensor; and (d) correlating the response or responses with the occurrence or state of the at least one condition. A method for identifying a micro-organism comprising the steps of (a) providing at least one gas sensor; (b) compiling a database of responses to at least one known micro-organism under a variety of culturing conditions; c) abstracting gas or vapor from a detection region and flowing the same over the at least one gas sensor and observing the response of the sensor or sensors; and (d) comparing the response to the database.

Detection of conditions by analysis of gases or vapors

There is disclosed a pattern identifying neural network comprising at least an input and an output layer, the output layer having a plurality of principal nodes, each principal node trained to recognize a different class of patterns, and at least one fuzzy node trained to recognize all classes of patterns recognized by the principal nodes but with outputs set out at levels lower than the corresponding outputs of the principal nodes.

Fuzzy neural networks

A gas sensor comprising a pair of electrodes. The gas sensor includes one or more semiconducting organic polymers deposited between the pair of electrodes in such a manner as to effect a semiconducting electrical connection therebetween. The gas sensor also includes a device for applying an electric signal across the electrodes and a detector for detecting a chosen electrical property across the electrodes in the presence of a gas. At least one of the semiconducting organic polymers is polymerized from a monomer comprising a five membered heterocyclic aromatic ring with substituent groups at the 2 and 5 positions.

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Cheadle, United Kingdom

Krishna Chandra Persaud