toxic ion

Comparatively, copper microparticles are relatively stable in the system and practically non-toxic, which indicates the importance of toxic estimation of materials at nanoscale. In addition, Cu(ⅱ) ion can induce protein damage, membrane damage, and slight DNA damage at only relatively high concentration.

相比之下，微米铜颗粒相对稳定，几乎无毒，这表明评估纳米材料的毒性具有重要的意义；Cu（II）只有在相对高浓度时才可诱导蛋白质损伤、细胞膜损伤和轻微的DNA损伤。

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Cu2O crystal has the advantages of low consumption, non-toxic, etc, and is considered as a promising functional material, which widely used in solar cells, lithium ion battery, biological sensors, magnetic storage, and microdevices.

Cu2O晶体具有低耗、无毒等优点，广泛应用于太阳能电池、锂离子电池、生物传感器、磁力储存设备等领域，是一种前景广阔的固体功能材料。

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Toxic effects of heavy metal ion on respiratory function of Paramecium caudatum

重金属离子对原生动物呼吸功能影响的研究

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