I READ with interest the report of the fast healing wound bandage made from chitosan found in crustacean shells, and created by the University of Bolton.

A much-needed product. However nothing was said about the supply of the material.

A question must arise that once this becomes industrially produced, how do they create a supply of crustaceans without adversely affecting these creatures and their environment?

These appear to be brilliant discoveries. As with all human discoveries, there is along-term effect on Nature.

Oh yes, and where will this product be manufactured? China! Now there's a surprise.

David Sharples,

Tarbet Drive,

Breightmet