The artificial leaf — a silicon solar cell with different catalytic materials bonded onto its two sides — needs no external wires or control circuits to operate.

人造叶子实际上是两边分别胶合了不同材料的催化剂的硅太阳能电池，因此不需要外部导线或者控制电路来操控。

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The biologist holds patents including a cell nanoinjector that introduces molecules into living cells, artificial bone materials, targets for tuberculosis therapy and cell microarray platforms.

该生物学家拥有包括将分子导入活体细胞的纳米注射器、人工骨科材料、结核病靶标治疗和细胞芯片平台等专利。

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But like mechanical pumps and artificial hearts, stem cell therapy is a high-tech, high-expense solution for dealing with heart diseases.

但是，和机械泵以及人造心脏一样，干细胞疗法对于治疗心脏病来说也是一种高技术、高成本的解决方案。

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The artificial red cell booster, EPO, hit endurance sports in the 1990s.

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The potential applications for medical science are impressive enough, but consider this additional benefit: since the droplets contain no genetic material, scientists can completely sidestep all the ethical red tape surrounding the alternative stem cell approach to artificial tissue.

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By changing the composition of the dye, G24's engineers ensure that the maximum sensitivity of the cell coincides with whatever frequency mix is appropriate for the artificial light concerned.

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