Isis Innovation Limited

Oxford University Innovation Ltd

Oxonica Materials Limited

Energenics Europe Ltd.

Gareth Wakefield

Peter James Dobson

John Sebastian Knowland

Helen Elizabeth Townley

The invention provides a particle comprising a metal oxide which is doped with at least one rare earth element, wherein the metal oxide is selected from titanium dioxide, zinc oxide, cerium oxide and mixtures of two or more thereof. The invention also provides a pharmaceutical composition comprising the particles, and to uses of the particles and composition in the treatment and diagnosis of cancer.

Particles for the treatment of cancer in combination with radiotherapy

A UV screening composition comprises particles which are capable of absorbing UV light so that electrons and positively charged holes are formed within the particles. The particles are adapted to minimize migration to the surface of the particles of the electrons and/or the positively charged holes when the particles are exposed to UV light in an aqueous environment.

Ultraviolet light screening compositions

A fuel or fuel additives is disclosed which includes particles of cerium oxide which have been doped with a divalent or trivalent metal or metalloid which is a rare earth metal, a transition metal or a metal of group IIA, IIIB, VB, or VIB of the Periodic Table.

Fuel or fuel additive containing doped cerium oxide nanoparticles

A UV screening composition comprising particles which are capable of absorbing UV light so that electrons and positively charged holes are formed within the particles, characterised in that the particles are adapted to minimise migration to the surface of the particles of the electrons and/or the positively charged holes when said particles are exposed to UV light in an aqueous environment.

Rare-earth-activated phosphors

Compounds having the formula Z O :Z where Z is a rare earth metal and x is from 2 to 4, and nanoparticles thereof together with a process for their production and their uses are disclosed.

Self activated rare earth oxide nanoparticles

The light emitter is fabricated from a silicon substrate (,) that has a layer of porous silicon (,) on its upper surface. A hole transporter (,) is applied to the upper surface of the porous silicon (,) and penetrates the channels (,&prime;) formed within the porous silicon. An upper semitransparent p-type material such as NiO is used as the upper contact (,) to the hole transporter and a further contact is formed on the base of the silicon wafer (,). The penetration of the hole transporter into the interstices between the silicon particles significantly improves the efficiency of the light emitter by up to two orders of magnitude. The light emitter is particularly suited to use in VLSI and display applications.

Growing community of inventors

Oxford, United Kingdom

Gareth Wakefield