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MoS2 Nanosheets–Cyanobacteria Interaction: Reprogrammed Carbon and Nitrogen Metabolism
ACS Nano ( IF 15.8 ) Pub Date : 2021-09-27 , DOI: 10.1021/acsnano.1c05656 Si Chen 1 , Nibin Shi 1 , Min Huang 1 , Xianjun Tan 2 , Xin Yan 1 , Aodi Wang 1 , Yuxiong Huang 2 , Rong Ji 1 , Dongmei Zhou 1 , Yong-Guan Zhu 3 , Arturo A Keller 4 , Jorge L Gardea-Torresdey 5 , Jason C White 6 , Lijuan Zhao 1
ACS Nano ( IF 15.8 ) Pub Date : 2021-09-27 , DOI: 10.1021/acsnano.1c05656 Si Chen 1 , Nibin Shi 1 , Min Huang 1 , Xianjun Tan 2 , Xin Yan 1 , Aodi Wang 1 , Yuxiong Huang 2 , Rong Ji 1 , Dongmei Zhou 1 , Yong-Guan Zhu 3 , Arturo A Keller 4 , Jorge L Gardea-Torresdey 5 , Jason C White 6 , Lijuan Zhao 1
Affiliation
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Fully understanding the environmental implications of engineered nanomaterials is crucial for their safe and sustainable use. Cyanobacteria, as the pioneers of the planet earth, play important roles in global carbon and nitrogen cycling. Here, we evaluated the biological effects of molybdenum disulfide (MoS2) nanosheets on a N2-fixation cyanobacteria (Nostoc sphaeroides) by monitoring growth and metabolome changes. MoS2 nanosheets did not exert overt toxicity to Nostoc at the tested doses (0.1 and 1 mg/L). On the contrary, the intrinsic enzyme-like activities and semiconducting properties of MoS2 nanosheets promoted the metabolic processes of Nostoc, including enhancing CO2-fixation-related Calvin cycle metabolic pathway. Meanwhile, MoS2 boosted the production of a range of biochemicals, including sugars, fatty acids, amino acids, and other valuable end products. The altered carbon metabolism subsequently drove proportional changes in nitrogen metabolism in Nostoc. These intracellular metabolic changes could potentially alter global C and N cycles. The findings of this study shed light on the nature and underlying mechanisms of bio-nanoparticle interactions, and offer the prospect of utilization bio-nanomaterials for efficient CO2 sequestration and sustainable biochemical production.
中文翻译：
二硫化钼纳米片-蓝藻相互作用：重新编程的碳和氮代谢
充分了解工程纳米材料的环境影响对其安全和可持续使用至关重要。蓝藻作为地球的先驱，在全球碳氮循环中发挥着重要作用。在这里，我们通过监测生长和代谢组变化来评估二硫化钼 (MoS 2 ) 纳米片对 N 2固定蓝藻 ( Nostoc sphaeroides )的生物学效应。在测试剂量（0.1 和 1 mg/L）下，MoS 2纳米片对Nostoc没有明显的毒性。相反，MoS 2纳米片固有的类酶活性和半导体特性促进了Nostoc的代谢过程。，包括增强与 CO 2固定相关的卡尔文循环代谢途径。同时，MoS 2促进了一系列生化产品的生产，包括糖、脂肪酸、氨基酸和其他有价值的最终产品。改变的碳代谢随后推动了Nostoc中氮代谢的成比例变化。这些细胞内代谢变化可能会改变全球 C 和 N 循环。本研究的结果阐明了生物纳米颗粒相互作用的性质和潜在机制，并为利用生物纳米材料进行高效 CO 2封存和可持续生化生产提供了前景。
更新日期：2021-10-26
中文翻译：
二硫化钼纳米片-蓝藻相互作用：重新编程的碳和氮代谢
充分了解工程纳米材料的环境影响对其安全和可持续使用至关重要。蓝藻作为地球的先驱，在全球碳氮循环中发挥着重要作用。在这里，我们通过监测生长和代谢组变化来评估二硫化钼 (MoS 2 ) 纳米片对 N 2固定蓝藻 ( Nostoc sphaeroides )的生物学效应。在测试剂量（0.1 和 1 mg/L）下，MoS 2纳米片对Nostoc没有明显的毒性。相反，MoS 2纳米片固有的类酶活性和半导体特性促进了Nostoc的代谢过程。，包括增强与 CO 2固定相关的卡尔文循环代谢途径。同时，MoS 2促进了一系列生化产品的生产，包括糖、脂肪酸、氨基酸和其他有价值的最终产品。改变的碳代谢随后推动了Nostoc中氮代谢的成比例变化。这些细胞内代谢变化可能会改变全球 C 和 N 循环。本研究的结果阐明了生物纳米颗粒相互作用的性质和潜在机制，并为利用生物纳米材料进行高效 CO 2封存和可持续生化生产提供了前景。
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