| 1. | Often, artificial cells are biological or polymeric membranes which enclose biologically active materials.
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| 2. | Thin-film technologies reduce the amount of active material in a cell.
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| 3. | The active material of the positive plates is a form of nickel hydrate.
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| 4. | The active material of the negative plates is iron oxide.
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| 5. | A plutonium bomb uses plutonium as the active material involved.
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| 6. | The electrolyte in such a system thus acts as both charge carrier and active material.
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| 7. | If you make it thinner, you lose active material.
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| 8. | Most sandwich active material between two panes of glass.
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| 9. | Shedding of active material from the plates was reduced.
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| 10. | DIP is a red dye and has been used as active material for optical recording.
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