Materials testing

Materials testing

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Caption: Materials testing. Technician using an Instron universal testing machine to evaluate the mechanical properties of a tensile bar (centre right) made from chemically modified zein. Zein is a protein found in maize (corn, Zea mays) and is one of the best understood plant proteins. It is used for a wide variety of commercial products including coatings for paper cups, soft drink bottle-cap linings, and clothing fabric.

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