United Kingdom Research and Innovation

Medical Research Council

Carlos André Passos Bastos

Jonathan Joseph Powell

Nuno Jorge Rodrigues Faria

Bradley Michael Vis

Sylvaine Francoise Aline Bruggraber

Stabilised and aquated polymeric silicate compositions are described in which the compositions are poorly condensed compositions in which the silicates are resorbable and are capable of undergoing efficient dissolution to provide bioavailable soluble silicic acid. In particular, stabilised and aquated polymeric silicates are described that are capable of intravenous delivery, useful in the treatment of cancer or systemic infection, or for topical administration, e.g. in the form of a solid or semi-solid ointment useful in the treatment of wounds or the prevention of bacterial infection.

Materials and methods relating to stabilised polymeric silicate compositions

Copper based antibacterial agents are described based on amphiphilic copper complexes formed between copper and hydroxypyrones, such as maltol. In further aspects, the present invention relates to PEG based-ointments showing that they are particularly effective for topical delivery of amphiphilic complexes of copper. In particular, PEG ointments were shown to limit bacterial growth, even when in the absence of copper agent. However, this bacteriostatic effect is shown herein to become a true biocidal effect when copper hydroxypyrones are added to the PEG.

Antimicrobial compositions comprising copper-hydroxypyrone complexes

Oxygen sensors and their uses are disclosed, and more particularly to oxygen sensors for use in product packaging for storing an article in a packaging envelope under modified atmosphere conditions wherein the oxygen sensors comprise solid oxo-hydroxy metal ion materials, optionally modified with one or more ligands and/or optionally having polymeric structures. The sensors may be present in a hydrated, oxygen permeable matrix, for example formed from a material, such as gelatine. The sensors are useful in many technical fields, and find particular application in the field of food packaging as they are safely disposable (e.g. are environmentally friendly), cheap to manufacture, and provide detectable changes in the presence of oxygen that are easy to read.

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Cambridge, United Kingdom

Carlos André Passos Bastos