Test strip membrane and radio: what they have in common

1. Step 1. Test strip membrane — is part of — Rapid test. The strip along which the sample flows.
2. Step 2. Rapid test — is made of — Gold. The label is gold nanoparticles.
3. Step 3. Gold — is material for — Glucose meter. The strip electrodes are gold or carbon.
4. Step 4. Glucose meter — has part — Liquid-crystal display. A screen.
5. Step 5. Liquid-crystal display — is part of — Pager. The message appears on an LCD.
6. Step 6. Pager — uses — Radio. Radio reception.

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