Aqueous zinc-ion batteries(ZIBs) have attracted significant attentions because of low cost and high reliability. However, conventional ZIBs are severely limited by the development of high energy density cathode materi...Aqueous zinc-ion batteries(ZIBs) have attracted significant attentions because of low cost and high reliability. However, conventional ZIBs are severely limited by the development of high energy density cathode materials with reversible Zn^(2+)insertion/extraction. Herein, a conducting polymer intercalated MoO_(3)(PMO) with extensively extended interlayer spacing is developed as a high-performance ZIBs cathode material. The interlayer spacing of PMO is prominently increased which results in an improved Zn^(2+)mobility during charge and discharge process. More significantly, the electrochemical results reveals that the intercalation of PANI facilitates the charge storage and reinforces the layered structure of MoO_(3), leading to a high capacity and good cycling stability. DFT calculation further reveals the intercalation of PANI into MoO_(3)significantly lower Zn^(2+)diffusion barrier. Benefit from these advantages, the ZIBs based on PMO electrode delivers a considerable capacity of 157 m Ah/g at 0.5 A/g and ameliorative stability with 63.4%capacity retention after 1000 cycles.展开更多
[Objectives] Caragana korshinskii resources are rich in Ordos with a large planting area, but they have not been fully and reasonably utilized. This study aims to effectively convert C. korshinskii into high-quality f...[Objectives] Caragana korshinskii resources are rich in Ordos with a large planting area, but they have not been fully and reasonably utilized. This study aims to effectively convert C. korshinskii into high-quality feed, improve the quality of milk and meat of herbivores and increase production. [Methods] The utilization of C. korshinskii in feed was studied in various aspects, the factors were selected, the level was determined, and the multi-factor experiment—orthogonal experiment was conducted. [Results] The effect on the growth of sheep was in the order of silage > C. korshinskii feed > corn stalk silage > hay meal, and the effect on the growth of goats was in the order of hay meal > C. korshinskii feed > silage > corn stalk silage. [Conclusions] From the analysis of the range results, the best level combination was selected: in different growing seasons, C. korshinskii branch and leaf silage in full-bloom stage had the greatest effect on the growth of sheep and goats, and the fattening effect was the best;among the different silage methods of C. korshinskii, the C. korshinskii—corn stalk mixture silage had a good feeding effect for sheep and goats.展开更多
Neutral aqueous zinc batteries(ZBs)using mild aqueous electrolytes such as ZnSO4 solution exhibit intrinsic security,non-toxicity,low cost,simplified assembling process,and high energy density,which sweep out consumer...Neutral aqueous zinc batteries(ZBs)using mild aqueous electrolytes such as ZnSO4 solution exhibit intrinsic security,non-toxicity,low cost,simplified assembling process,and high energy density,which sweep out consumer's concerns about safety[1,2].These advantages promote this field to develop rapidly at multiple aspects ranging from the advanced cathode design to the functional/smart device assembly[3,4].However,the controversial standpoint whether Zn dendrites exist during the charging/discharging processes in neutral/mild electrolytes is still under debate.Some researchers demonstrated commercial Zn plates without further treatment were capable of driving highly reversable Zn plating/stripping courses in a non-dendrite manner[5-7]whereas others,by virtue of radiography and optical microscopy,clearly visualized the appearance of Zn dendrites that caused internal short circuit and severe battery lifespan deterioration[8-11].展开更多
DNA nanostructures have emerged as promising carriers for drug delivery.However,challenges such as low stability,poor cellular uptake efficiency,and vulnerability to lysosomal degradation still hinder their therapeuti...DNA nanostructures have emerged as promising carriers for drug delivery.However,challenges such as low stability,poor cellular uptake efficiency,and vulnerability to lysosomal degradation still hinder their therapeutic potential.In this study,we demonstrate the coating of tetrahedral DNA frameworks(TDF)with the endosomolytic peptide L17E through electrostatic interactions to address these issues.Our findings highlight that L17E coating substantially enhances the stability of TDFs and improves their uptake efficiency into RAW264.7 cells through endocytosis and macropinocytosis.Moreover,L17E coating enables efficient endosomal release of TDFs.Finally,we employed L17E-coated TDF to deliver osteogenic growth peptide and demonstrated its potential applications in inhibiting periodontitis both in vitro and in vivo.This straightforward and cost-effective strategy holds promise for advancing the biomedical applications of DNA nanostructures.展开更多
基金financially supported by the National Natural Science Foundation of China (Nos. 51771058, 51801030)Natural Science Foundation of Guangdong Province (No. 2018A030310571)。
文摘Aqueous zinc-ion batteries(ZIBs) have attracted significant attentions because of low cost and high reliability. However, conventional ZIBs are severely limited by the development of high energy density cathode materials with reversible Zn^(2+)insertion/extraction. Herein, a conducting polymer intercalated MoO_(3)(PMO) with extensively extended interlayer spacing is developed as a high-performance ZIBs cathode material. The interlayer spacing of PMO is prominently increased which results in an improved Zn^(2+)mobility during charge and discharge process. More significantly, the electrochemical results reveals that the intercalation of PANI facilitates the charge storage and reinforces the layered structure of MoO_(3), leading to a high capacity and good cycling stability. DFT calculation further reveals the intercalation of PANI into MoO_(3)significantly lower Zn^(2+)diffusion barrier. Benefit from these advantages, the ZIBs based on PMO electrode delivers a considerable capacity of 157 m Ah/g at 0.5 A/g and ameliorative stability with 63.4%capacity retention after 1000 cycles.
基金Supported by Demonstration Project of Forestry and Grassland Science and Technology Popularization by Central Finance[NeiLinCaoKeTui(2021)]Major Project of"Revitalizing Mongolia through Science and Technology"(KJXM-EEDS-2020006)Major Science and Technology Project of Inner Mongolia Autonomous Region(2019ZD007)。
文摘[Objectives] Caragana korshinskii resources are rich in Ordos with a large planting area, but they have not been fully and reasonably utilized. This study aims to effectively convert C. korshinskii into high-quality feed, improve the quality of milk and meat of herbivores and increase production. [Methods] The utilization of C. korshinskii in feed was studied in various aspects, the factors were selected, the level was determined, and the multi-factor experiment—orthogonal experiment was conducted. [Results] The effect on the growth of sheep was in the order of silage > C. korshinskii feed > corn stalk silage > hay meal, and the effect on the growth of goats was in the order of hay meal > C. korshinskii feed > silage > corn stalk silage. [Conclusions] From the analysis of the range results, the best level combination was selected: in different growing seasons, C. korshinskii branch and leaf silage in full-bloom stage had the greatest effect on the growth of sheep and goats, and the fattening effect was the best;among the different silage methods of C. korshinskii, the C. korshinskii—corn stalk mixture silage had a good feeding effect for sheep and goats.
文摘Neutral aqueous zinc batteries(ZBs)using mild aqueous electrolytes such as ZnSO4 solution exhibit intrinsic security,non-toxicity,low cost,simplified assembling process,and high energy density,which sweep out consumer's concerns about safety[1,2].These advantages promote this field to develop rapidly at multiple aspects ranging from the advanced cathode design to the functional/smart device assembly[3,4].However,the controversial standpoint whether Zn dendrites exist during the charging/discharging processes in neutral/mild electrolytes is still under debate.Some researchers demonstrated commercial Zn plates without further treatment were capable of driving highly reversable Zn plating/stripping courses in a non-dendrite manner[5-7]whereas others,by virtue of radiography and optical microscopy,clearly visualized the appearance of Zn dendrites that caused internal short circuit and severe battery lifespan deterioration[8-11].
基金supported by the National Key R&D Program of China(2020YFA0908900)Universities Stable Funding Key Projects(WDZC20200821104802001)+2 种基金the State Key Laboratory of Chemical Oncogenomicsthe Institute of Biomedical Health Technology and Engineering of Shenzhen Bay LaboratoryGuangDong Basic and Applied Basic Research Foundation(2021A1515110819).
文摘DNA nanostructures have emerged as promising carriers for drug delivery.However,challenges such as low stability,poor cellular uptake efficiency,and vulnerability to lysosomal degradation still hinder their therapeutic potential.In this study,we demonstrate the coating of tetrahedral DNA frameworks(TDF)with the endosomolytic peptide L17E through electrostatic interactions to address these issues.Our findings highlight that L17E coating substantially enhances the stability of TDFs and improves their uptake efficiency into RAW264.7 cells through endocytosis and macropinocytosis.Moreover,L17E coating enables efficient endosomal release of TDFs.Finally,we employed L17E-coated TDF to deliver osteogenic growth peptide and demonstrated its potential applications in inhibiting periodontitis both in vitro and in vivo.This straightforward and cost-effective strategy holds promise for advancing the biomedical applications of DNA nanostructures.
