| abstract |
The present invention relates to composite materials. A composite material is disclosed for the selective retention of chemical species from a fluid substance. The composite material comprises a support material, a permeable gel retained on the support material and, in the permeable gel, an active material capable of selectively retaining the chemical species. n At least some of the permeable gel is enmeshed with the support material. n A method for the preparation of the composite material is also disclosed. |