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A platform for research: civil engineering, architecture and urbanism
Escalating Photobiological Hydrogen Production Using Engineered Selenium Nanoparticles
https://orcid.org/0000-0002-3268-211X
https://orcid.org/0000-0002-6213-9054
This study assessed the effect of selenium nanoparticles (SeNPs), a metalloid-based semiconducting NP, on the growth of the photosynthetic bacterium Rhodopseudomonas palustris and its production of photofermentative hydrogen (H2) metabolized from acetate. The addition of 0.1 mg/L SeNPs enhanced the growth of R. palustris and increased H2 production by 7.34% in the stationary phase. Furthermore, the decoration of SeNPs with chitosan and vitamin E improved stability and increased H2 production by 20.48 and 34.43%, respectively, in growing R. palustris. Nitrogen-starved, nongrowing R. palustris could increase the H2 yield by fully oxidizing acetate. The decoration of SeNPs with chitosan and vitamin E resulted in a 66.42 and 77.94% increase in H2 production of nongrowing R. palustris, with yields of 1.06 and 1.08 mol/mol acetate, respectively, which are comparable to reported yields metabolized from 6-carbon hexose. Finally, the study provided evidence that SeNPs augment H2 production by facilitating electron transfer from photophosphorylation to the H2-producing enzyme. Therefore, this study will enable the advanced optimization of photobiological H2 production using engineered NPs.
Escalating Photobiological Hydrogen Production Using Engineered Selenium Nanoparticles
https://orcid.org/0000-0002-3268-211X
https://orcid.org/0000-0002-6213-9054
This study assessed the effect of selenium nanoparticles (SeNPs), a metalloid-based semiconducting NP, on the growth of the photosynthetic bacterium Rhodopseudomonas palustris and its production of photofermentative hydrogen (H2) metabolized from acetate. The addition of 0.1 mg/L SeNPs enhanced the growth of R. palustris and increased H2 production by 7.34% in the stationary phase. Furthermore, the decoration of SeNPs with chitosan and vitamin E improved stability and increased H2 production by 20.48 and 34.43%, respectively, in growing R. palustris. Nitrogen-starved, nongrowing R. palustris could increase the H2 yield by fully oxidizing acetate. The decoration of SeNPs with chitosan and vitamin E resulted in a 66.42 and 77.94% increase in H2 production of nongrowing R. palustris, with yields of 1.06 and 1.08 mol/mol acetate, respectively, which are comparable to reported yields metabolized from 6-carbon hexose. Finally, the study provided evidence that SeNPs augment H2 production by facilitating electron transfer from photophosphorylation to the H2-producing enzyme. Therefore, this study will enable the advanced optimization of photobiological H2 production using engineered NPs.
Escalating Photobiological Hydrogen Production Using Engineered Selenium Nanoparticles
https://orcid.org/0000-0002-3268-211X
https://orcid.org/0000-0002-6213-9054
This study assessed the effect of selenium nanoparticles (SeNPs), a metalloid-based semiconducting NP, on the growth of the photosynthetic bacterium Rhodopseudomonas palustris and its production of photofermentative hydrogen (H2) metabolized from acetate. The addition of 0.1 mg/L SeNPs enhanced the growth of R. palustris and increased H2 production by 7.34% in the stationary phase. Furthermore, the decoration of SeNPs with chitosan and vitamin E improved stability and increased H2 production by 20.48 and 34.43%, respectively, in growing R. palustris. Nitrogen-starved, nongrowing R. palustris could increase the H2 yield by fully oxidizing acetate. The decoration of SeNPs with chitosan and vitamin E resulted in a 66.42 and 77.94% increase in H2 production of nongrowing R. palustris, with yields of 1.06 and 1.08 mol/mol acetate, respectively, which are comparable to reported yields metabolized from 6-carbon hexose. Finally, the study provided evidence that SeNPs augment H2 production by facilitating electron transfer from photophosphorylation to the H2-producing enzyme. Therefore, this study will enable the advanced optimization of photobiological H2 production using engineered NPs.
Escalating Photobiological Hydrogen Production Using Engineered Selenium Nanoparticles
Li, Siyuan (author) / Luo, Yaxin (author) / Chen, Jiazhe (author) / Shi, Zhirui (author) / Tang, Chuyan (author) / Zhao, Yameng (author) / Yang, Jianming (author) / Yan, Zhen (author)
ACS ES&T Engineering ; 4 ; 673-682
2024-03-08
Article (Journal)
Electronic Resource
English
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