Christopher Breen,Neil Bricklebank,Francis Clegg,Louise Freeman-Parry,Marianne Labet-Eyley,Keith Miller
申请号：
GB201504305
公开号：
GB2536427A
申请日:
2015.03.13
申请国别(地区):
GB
年份:
2016
代理人:
摘要：
The present application relates to an antimicrobial composite material 203 comprising a heteroatom containing first polymer complexed to iodine or an iodine-containing species, a second polymer to promote formation of the material, and a clay. Preferably the first polymer comprises polyvinylpyrrolidone (PVP), the second polymer comprises polyvinyl alcohol (PVOH) and the clay is Cloisite Na+. In one embodiment the material is organised into a first layer 200 and a second layer 201, wherein the first layer 200 comprises a higher concentration of clay than the second layer 201 and is therefore configured to release the iodine from the material in a shorter time period than the second layer. This provides a double layered antimicrobial material 203 which may be a wound dressing with a different release profile of iodine depending on which face 204, 205 is in contact with the wound. The material may be manufactured by creating a slurry by mixing heteroatom containing first polymer complexed to iodine or an iodine-containing species, a second polymer and a clay in a solvent and drying the slurry to for the composite material.
