Imperial Chemical Industries Limited

Pankaj M Vadgama

Graham W Scott

Lian X Tang

William H Mullen

A sensor of the enzyme-electrode type comprising an electrode and a membrane permeable to liquids and solutes which is positioned between the electrode and a specimen containing the analyte to be determined, is characterized by the fact that a layer of a porous material, positioned in the membrane between the enzyme-containing layer and the specimen, has been treated to at least partially fill the pores with a liquid of limited volatility which is not significantly soluble in water and is to some degree a solvent for the analyte.

Sensor and method for analyte determination

A membrane for an enzyme-electrode type sensor treated to increase the range of linearity of the sensor response.

Enzyme-electrode sensor with organosilane treated membrane

A membrane particularly for use in a sensor of the enzyme-electrode type which comprises one or more layers of material and an enzyme-containing layer and in which one layer is formed from a sulphonated or unsulphonated polyarylsulphone or a sulphonated or unsulphonated polyarylketone. The specification also relates to a non-enzymic sensor having a membrane including a layer formed from one of these polymers. Methods for determining an analyte using an enzymic or non-enzymic sensors are also included in the scope of the invention.

Growing community of inventors

Newcastle-Upon-Tyne, United Kingdom

Pankaj M Vadgama