An increased die-off of fungal spores was found on copper surfaces compared with aluminium.

They have performed well for over 700 years, primarily because of the protective patina that forms on copper surfaces.

Upon the copper surface he viewed the glaring image of a reptilian face, topped by a plumed headdress.

In the experiments, hundreds of thousands of tin atoms were dropped, one by one, onto a copper surface.

The antimicrobial copper surfaces were proved to work continuously.

The study concluded that copper surfaces may be an effective adjunct to safe hygiene practices in a hospital setting.

The bright copper surface seems determined to become tarnished.

In jewelry making, pickling is used to remove the oxidation layer from copper surfaces, which occurs after heating.

Bacteria will not grow on a copper surface because it is biostatic.

Now they are part of the copper surface and they cannot be removed without damaging the underlying metal and surrounding area.