Smith + Nephew

University of Sheffield

Stephen Rimmer

John Kenneth Hicks

Richard Hoskins

Dorothy McCulloch

Polyurethane material for indicating pH at a locus, preferably as indication of presence of microbes, comprising a polyurethane network having immobilised therein one or more hydrophilic copolymers, the or each said copolymer comprising:

Polymer materials

Device comprising polyurethane material for indicating pH at a locus, preferably as indication of presence of microbes, comprising a polyurethane network having immobilised therein one or more hydrophilic copolymers, the or each said copolymer comprising: hydrophilic monomer; and indicator monomer, which provides an indication in response to a change in hydrophilic state of said hydrophilic monomer and/or copolymer; characterised in that the or each copolymer further comprises one or a plurality of ionisable groups or moieties or polymerisable monomers having one or more characteristic pKa values in the range 5 to 10 and which are responsive to pH at the locus in the range pH 5 to pH 10and in that hydrophilic state of hydrophilic copolymer is dependent on ionisation of said ionisable groups, moieties or monomers; kit and device comprising the material and process for preparation thereof; and use in detecting or sensing microbes or pH.

Device and kit for indicating a pH at a locus

A device for sensing and/or detecting species or stimulus at a locus, preferably at a fluid or moist locus by means of fluid communication therewith, comprising a surface configured to contact the locus, wherein the surface comprises a polyurethane material which material comprises a polyurethane polymer network having a hydrophilic polymer immobilised therein wherein the hydrophilic polymer comprises immobilised therein a ligand or moiety for detecting or sensing species or stimulus and an indicator for indicating detection or sensing prior to contact with the locus and change in indication as a function of species or stimulus present at the locus wherein species or stimulus are selected from chemical and biological species or stimulus; the use thereof preferably for detecting and/or sensing or binding bacteria, or for detecting or sensing pH or for detection or scanning with use of a reader; and a Kit.

Device including a polymeric material for detecting species and stimulus and method of using thereof

A polyurethane material for the detection or sensing of species or stimulus comprising a polyurethane network

Growing community of inventors

Sheffield, United Kingdom

Stephen Rimmer