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- 저자 : Jingying Duan (검색결과 2 건)
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‘‘Anode-free” Zn/LiFePO4 aqueous batteries boosted by hybrid electrolyte
Jingying Duan,Luofu Min,Mengqian Wu,Ting Yang,Mingming Chen,Chengyang Wang 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.114 No.-
Aqueous rechargeable batteries with Zn as anode directly have become prospective alternatives to conventionallithium-ion batteries. However, the growth of zinc dendrites restricts the practical applicationof Zn anode greatly. In addition, the use of thick zinc foil as anode also increases the total weight of thebattery and impacts the whole energy density. Herein, a kind of ‘‘anode-free” Zn/LiFePO4 battery (zeroexcessZn) is designed to solve such problems, and corresponding electrolyte is optimized to ensurethe electrochemical performance. As a result, ethylene glycol (EG) is added to the aqueous electrolytewith 1.5 M Zn(CF3SO3)2 and 1.5 M LiCF3SO3 as solutes, which not only improves the stability of the electrolyte,but also inhibits the growth of zinc dendrites. And the Zn/Cu batteries with 70 vol% EG/H2Ohybrid electrolyte show highly reversible Zn plating/stripping process, in which the average coulombicefficiency (ACE) is as high as 99.77 % at a current density of 1 mA cm2. In order to better adapt to the‘‘anode-free” Zn/LiFePO4 battery system, the ratio of Zn2+ to Li+ ions in this electrolyte is further optimized,and it’s found that the battery with 2 M Zn(CF3SO3)2 + 1 M LiCF3SO3-70 vol% EG/H2O electrolyteshows the most excellent electrochemical stability, in which the capacity retention rate is 75.2 % after100 cycles at a current density of 1 mA cm2. Our work makes it possible for the application of aqueous‘‘anode-free” batteries.
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Meng Guizhi,Duan Hongjuan,Jia Jingying,Liu Baobao,Ma Yun,Cai Xiaoyan 아세아·태평양축산학회 2024 Animal Bioscience Vol.37 No.3
Objective: It was shown that microRNAs (miRNAs) play an important role in milk protein synthesis. However, the post-transcriptional regulation of casein expression by exogenous miRNA (xeno-miRNAs) in ruminants remains unclear. This study explores the regulatory roles of alfalfa xeno-miR162 on casein synthesis in bovine mammary epithelial cells (bMECs). Methods: The effects of alfalfa xenomiR-162 and G protein subunit gamma 11 (GNG11) on proliferation and milk protein metabolism of bMECs were detected by 5-Ethynyl-2′- Deoxyuridine (EdU) staining, flow cytometry, cell counting kit-8 (CCK-8), enzyme-linked immunosorbent assay, quantitative real-time polymerase chain reaction (qRT-PCR), and Western blot. Dual-luciferase reporter assay was used to verify the targeting relationship between GNG11 and xenomiR-162. Results: Results showed that over-expression of xenomiR-162 inhibited cell proliferation but promoted apoptosis, which also up-regulated the expression of several casein coding genes, including CSN1S1, CSN1S2, and CSN3, while decreasing the expression of CSN2. Furthermore, the targeting relationship between GNG11 and xenomiR-162 was determined, and it was confirmed that GNG11 silencing also inhibited cell proliferation but promoted apoptosis and reduced the expression of casein coding genes and genes related to the mammalian target of rapamycin (mTOR) pathway. Conclusion: Alfalfa xenomiR-162 appears to regulate bMECs proliferation and milk protein synthesis via GNG11 in the mTOR pathway, suggesting that this xeno-miRNA could be harnessed to modulate CSN3 expression in dairy cows, and increase κ-casein contents in milk.
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