Negative mutagenic and clastogenic potentials suggest that they are not carcinogenic.
负诱变和致裂潜力表明它们不具有致癌性。
2
The calculated results show that the electrostatic potentials of most areas are negative except the area nearby carbon nucleus.
结果表明：除近核区域为正常的正电势外，碳纳米管结构模型的管内和管外为负电势区域；
3
They are strong reducing agents (very negative REDOX potentials) and function as electron carriers, for example in photosynthesis and nitrogen fixation.