Abstract: A component for a spiral wound membrane, suitably for water filtration. The component includes an integrally formed non-uniform lattice structure. The lattice structure includes a first and second repeating unit cell, wherein the first and second unit cell are different.

Abstract: A membrane device comprising a porous ceramic member. The porous ceramic member comprises a first support portion operable to support an active layer and further comprises a second support portion. The second support portion has a higher D75 average pore size than the D75 average pore size of the first support portion. The second support portion comprises a lattice structure that has a porosity percentage of ?40%. The porous ceramic member has a tensile strength operable to withstand feed application pressure of ?100 kPa (1 bar).

Abstract: The invention relates to a method of storing information in or on an article, wherein the article comprises a colour former which is selectively irradiated to produce a multi-coloured code comprising at least three different colours. Also provided by the invention is an article comprising a multi-coloured code comprising at least three different colours, obtainable by the method of the invention.

Abstract: A data storage medium comprising recording information in the form of a track of data points, the colour of each data point being selected from at least three different colours, wherein the recording information is disposed on a substrate which comprises a colour forming composition, wherein said colour forming comprises a colour former which is susceptible to changing to at least three different colours when irradiated with a laser, wherein the colour former is a leuco dye, a diacetylene or a carbazole. Methods of forming the data storage medium and methods of reading the medium are also provided.