To improve the slow kinetics and poor mechanical strength of aqueous silver peroxide−aluminum(AgO−Al)battery cathode materials,the effects of different binders including polytetrafluoroethylene(PTFE)and polyvinylpyrro...To improve the slow kinetics and poor mechanical strength of aqueous silver peroxide−aluminum(AgO−Al)battery cathode materials,the effects of different binders including polytetrafluoroethylene(PTFE)and polyvinylpyrrolidone(PVP)on the AgO cathode material were investigated.The samples were characterized by scanning electron microscopy(SEM),transmission electron microscopy(TEM),cyclic voltammetry(CV),electrochemical impedance spectrum(EIS),and galvanostatic discharge.In contrast to the pure AgO and AgO−PTFE electrodes,the results demonstrated that the PVP effectively bound the electrode materials together.The prepared AgO−PVP as the cathode material of AgO−Al batteries could improve the battery capacity,exhibiting a high specific capacity(389.95 mA·h/g at 500 mA/cm^(2)),a high operating voltage(1.75 V at 500 mA/cm^(2)),a maximum energy density(665.65 W·h/kg),and a maximum power density(5236 W/kg).Furthermore,the electrochemical mechanism of the AgO−PVP cathode material was examined,revealing that the electrode exhibited rapid ion diffusion and effective interfacial ion/electron transport.展开更多
[目的]探讨乏氧条件下长链非编码RNA LINC00488通过miR-376a-3p/AGO2调控甲状腺乳头状癌细胞凋亡的潜在机制。[方法]乏氧处理后,高通量测序和过表达筛选影响乏氧条件下甲状腺乳头状癌细胞B-CPAP凋亡水平的长链非编码RNA。过表达或敲低LI...[目的]探讨乏氧条件下长链非编码RNA LINC00488通过miR-376a-3p/AGO2调控甲状腺乳头状癌细胞凋亡的潜在机制。[方法]乏氧处理后,高通量测序和过表达筛选影响乏氧条件下甲状腺乳头状癌细胞B-CPAP凋亡水平的长链非编码RNA。过表达或敲低LINC00488、miR-376a-3p、AGO2后检测B-CPAP的凋亡水平。[结果]乏氧条件下,LINC00488的表达水平显著上升。敲低LINC00488后乏氧条件下B-CPAP细胞的凋亡水平显著上升[(24.59±3.55 vs 65.69±8.99)%,P<0.05]。过表达miR-376a-3p后乏氧条件下B-CPAP细胞的凋亡水平显著上升[(25.56±3.86 vs 69.04±9.52)%,P<0.05]。此外,LINC00488和miR-376a-3p存在碱基间的相互作用。敲低AGO2后乏氧条件下B-CPAP细胞的凋亡水平显著上升[(26.91±3.77 vs 60.72±8.45)%,P<0.05]。同时,miR-376a-3p靶向结合AGO2 mRNA的3′端非翻译区。过表达miR-376a-3p后乏氧条件下B-CPAP细胞中AGO2的mRNA和蛋白水平均下降(0.84±0.18 vs 0.11±0.01,P<0.05);敲低miR-376a-3p后乏氧条件下B-CPAP细胞中AGO2的mRNA和蛋白水平均上升(0.84±0.18 vs 1.43±0.23,P<0.05)。[结论]乏氧条件下,长链非编码RNA LINC00488结合miR-376a-3p后抑制了miR-376a-3p调节下游基因AGO2表达的能力,从而抑制了甲状腺乳头状癌细胞的凋亡。展开更多
基金supported by the Fundamental Research Funds for the Central Universities of Central South University,China(No.2022XQLH046)the Technical Area Fund of Foundation Strengthening,China(No.2022-JCJQ-ZD-174-00-20)National Defense Basic Scientific Research Projects,China,and Central South University−Zijin Mining Technical Cooperation Development Project,China.
文摘To improve the slow kinetics and poor mechanical strength of aqueous silver peroxide−aluminum(AgO−Al)battery cathode materials,the effects of different binders including polytetrafluoroethylene(PTFE)and polyvinylpyrrolidone(PVP)on the AgO cathode material were investigated.The samples were characterized by scanning electron microscopy(SEM),transmission electron microscopy(TEM),cyclic voltammetry(CV),electrochemical impedance spectrum(EIS),and galvanostatic discharge.In contrast to the pure AgO and AgO−PTFE electrodes,the results demonstrated that the PVP effectively bound the electrode materials together.The prepared AgO−PVP as the cathode material of AgO−Al batteries could improve the battery capacity,exhibiting a high specific capacity(389.95 mA·h/g at 500 mA/cm^(2)),a high operating voltage(1.75 V at 500 mA/cm^(2)),a maximum energy density(665.65 W·h/kg),and a maximum power density(5236 W/kg).Furthermore,the electrochemical mechanism of the AgO−PVP cathode material was examined,revealing that the electrode exhibited rapid ion diffusion and effective interfacial ion/electron transport.
文摘[目的]探讨乏氧条件下长链非编码RNA LINC00488通过miR-376a-3p/AGO2调控甲状腺乳头状癌细胞凋亡的潜在机制。[方法]乏氧处理后,高通量测序和过表达筛选影响乏氧条件下甲状腺乳头状癌细胞B-CPAP凋亡水平的长链非编码RNA。过表达或敲低LINC00488、miR-376a-3p、AGO2后检测B-CPAP的凋亡水平。[结果]乏氧条件下,LINC00488的表达水平显著上升。敲低LINC00488后乏氧条件下B-CPAP细胞的凋亡水平显著上升[(24.59±3.55 vs 65.69±8.99)%,P<0.05]。过表达miR-376a-3p后乏氧条件下B-CPAP细胞的凋亡水平显著上升[(25.56±3.86 vs 69.04±9.52)%,P<0.05]。此外,LINC00488和miR-376a-3p存在碱基间的相互作用。敲低AGO2后乏氧条件下B-CPAP细胞的凋亡水平显著上升[(26.91±3.77 vs 60.72±8.45)%,P<0.05]。同时,miR-376a-3p靶向结合AGO2 mRNA的3′端非翻译区。过表达miR-376a-3p后乏氧条件下B-CPAP细胞中AGO2的mRNA和蛋白水平均下降(0.84±0.18 vs 0.11±0.01,P<0.05);敲低miR-376a-3p后乏氧条件下B-CPAP细胞中AGO2的mRNA和蛋白水平均上升(0.84±0.18 vs 1.43±0.23,P<0.05)。[结论]乏氧条件下,长链非编码RNA LINC00488结合miR-376a-3p后抑制了miR-376a-3p调节下游基因AGO2表达的能力,从而抑制了甲状腺乳头状癌细胞的凋亡。
