Developing supercapacitors(SCs)with long cycling life and wide operative voltage window is a significant topic in the field of aqueous electrolytes.Although the design of water in salt(WIS)electrolytes has pushed the ...Developing supercapacitors(SCs)with long cycling life and wide operative voltage window is a significant topic in the field of aqueous electrolytes.Although the design of water in salt(WIS)electrolytes has pushed the development of aqueous electrolytes to a new height,the WIS electrolytes with an operative voltage window of up to 2.5 V is still very scarce.Herein,in order to enrich the type of aqueous electrolyte with high operative voltage,tetramethylammonium trifluoromethanesulfonate(TMAOTf)based WIS electrolyte was used as a model to construct WIS based hybrid electrolyte with acetonitrile(ACN)co-solvent and LiTFSI co-solute.In view of the coordination effect of ACN and Lit on free water in TMAOTf based WIS electrolyte,the TMAt-Lit-AWIS electrolyte has the electrochemical stabilization window of up to 3.35 V.Further coupled with the commercial YP-50F electrodes,TMAt-Lit-AWIS based SCs exhibited wide operative voltage window(2.5 V),long cycling life(45,000 cycles)and good low-temperature performance(99.99%capacitance retention after 2000 cycles at20℃).The design of this hybrid electrolyte will enrich the types of aqueous hybrid electrolytes with long cycling life and wide operative voltage window.展开更多
Heavy metal pollution in agricultural soils is a significant challenge for global food production and human health with the increasing industrialization and urbanization.There is a concern about introducing innovative ...Heavy metal pollution in agricultural soils is a significant challenge for global food production and human health with the increasing industrialization and urbanization.There is a concern about introducing innovative techni-ques that are eco-friendly,cost-effective,and have the potential to alleviate metals,enhance crop growth,and pro-tect plants against various environmental threats.For this,nanotechnology is one of the promising solutions having various applications in almost everyfield of life.This review explores various nano-based strategies that use nanoparticles(NPs)to lessen the harmful effects that heavy metals have on plants.Incorporated literature including published research and review papers from the year 2015 to 2023.This review paper gives a thorough review of the current situation regarding heavy metal contamination in agricultural soils and how it affects plant health.The necessity offinding practical and eco-friendly ways to address these issues is emphasized,paving the way for the introduction of NPs.Then,it highlighted the mechanistic route of heavy metal toxicity alleviation in plants by their application as well as their long-term efficiency and prospects.This review also elaborated on var-ious synthesis methods(physical,chemical,and green),but the emphasis on the green synthesis of NPs by utiliz-ing plant extract offers dependable and sustainable benefits over traditional physicochemical techniques.Under trace element stress,NPs application enhances plant antioxidant defense system,ameliorating structural changes,immobilizing trace elements in growth media,and improving the physio-chemical properties of soil as well.How-ever,there are still numerous limitations present on how these materials are synthesized,applied,and appropri-ately absorbed by plant cells.It is recommended to promote and fund long-term research to assess the long-term effects of using NPs on plant development,soil health,and possible environmental repercussions.展开更多
Background:Until January 18,2021,coronavirus disease-2019(COVID-19)has infected more than 93 million individuals and has caused a certain degree of panic.Viral pneumonia caused by common viruses such as respiratory sy...Background:Until January 18,2021,coronavirus disease-2019(COVID-19)has infected more than 93 million individuals and has caused a certain degree of panic.Viral pneumonia caused by common viruses such as respiratory syncytial virus,rhinovirus,human metapneumovirus,human bocavirus,and parainfluenza viruses have been more common in children.However,the incidence of COVID-19 in children was significantly lower than that in adults.The purpose of this study was to describe the clinical manifestations,treatment and outcomes of COVID-19 in children compared with those of other sources of viral pneumonia diagnosed during the COVID-19 outbreak.Methods:Children with COVID-19 and viral pneumonia admitted to 20 hospitals were enrolled in this retrospective multi-center cohort study.A total of 64 children with COVID-19 were defined as the COVID-19 cohort,of which 40 children who developed pneumonia were defined as the COVID-19 pneumonia cohort.Another 284 children with pneumonia caused by other viruses were defined as the viral pneumonia cohort.The epidemiologic,clinical,and laboratory findings were compared by Kolmogorov-Smirnov test,t-test,Mann-Whitney U test and Contingency table method.Drug usage,immunotherapy,blood transfusion,and need for oxygen support were collected as the treatment indexes.Mortality,intensive care needs and symptomatic duration were collected as the outcome indicators.Results:Compared with the viral pneumonia cohort,children in the COVID-19 cohort were mostly exposed to family members confirmed to have COVID-19(53/64 vs.23/284),were of older median age(6.3 years vs.3.2 years),and had a higher proportion of ground-glass opacity(GGO)on computed tomography(18/40 vs.0/38,P<0.001).Children in the COVID-19 pneumonia cohort had a lower proportion of severe cases(1/40 vs.38/284,P=0.048),and lower cases with high fever(3/40 vs.167/284,P<0.001),requiring intensive care(1/40 vs.32/284,P<0.047)and with shorter symptomatic duration(median 5d vs.8d,P<0.001).The proportion of cases with evaluated inflammatory indica展开更多
基金supported by the Longkou City Science and Technology Research and Development Plan(No.2020KJJH061).
文摘Developing supercapacitors(SCs)with long cycling life and wide operative voltage window is a significant topic in the field of aqueous electrolytes.Although the design of water in salt(WIS)electrolytes has pushed the development of aqueous electrolytes to a new height,the WIS electrolytes with an operative voltage window of up to 2.5 V is still very scarce.Herein,in order to enrich the type of aqueous electrolyte with high operative voltage,tetramethylammonium trifluoromethanesulfonate(TMAOTf)based WIS electrolyte was used as a model to construct WIS based hybrid electrolyte with acetonitrile(ACN)co-solvent and LiTFSI co-solute.In view of the coordination effect of ACN and Lit on free water in TMAOTf based WIS electrolyte,the TMAt-Lit-AWIS electrolyte has the electrochemical stabilization window of up to 3.35 V.Further coupled with the commercial YP-50F electrodes,TMAt-Lit-AWIS based SCs exhibited wide operative voltage window(2.5 V),long cycling life(45,000 cycles)and good low-temperature performance(99.99%capacitance retention after 2000 cycles at20℃).The design of this hybrid electrolyte will enrich the types of aqueous hybrid electrolytes with long cycling life and wide operative voltage window.
基金This work has been financially supported by the Deanship of Scientific Research,Vice Presidency for Graduate Studies and Scientific Research,King Faisal University,Saudi Arabia(Project No.GRANTA513).
文摘Heavy metal pollution in agricultural soils is a significant challenge for global food production and human health with the increasing industrialization and urbanization.There is a concern about introducing innovative techni-ques that are eco-friendly,cost-effective,and have the potential to alleviate metals,enhance crop growth,and pro-tect plants against various environmental threats.For this,nanotechnology is one of the promising solutions having various applications in almost everyfield of life.This review explores various nano-based strategies that use nanoparticles(NPs)to lessen the harmful effects that heavy metals have on plants.Incorporated literature including published research and review papers from the year 2015 to 2023.This review paper gives a thorough review of the current situation regarding heavy metal contamination in agricultural soils and how it affects plant health.The necessity offinding practical and eco-friendly ways to address these issues is emphasized,paving the way for the introduction of NPs.Then,it highlighted the mechanistic route of heavy metal toxicity alleviation in plants by their application as well as their long-term efficiency and prospects.This review also elaborated on var-ious synthesis methods(physical,chemical,and green),but the emphasis on the green synthesis of NPs by utiliz-ing plant extract offers dependable and sustainable benefits over traditional physicochemical techniques.Under trace element stress,NPs application enhances plant antioxidant defense system,ameliorating structural changes,immobilizing trace elements in growth media,and improving the physio-chemical properties of soil as well.How-ever,there are still numerous limitations present on how these materials are synthesized,applied,and appropri-ately absorbed by plant cells.It is recommended to promote and fund long-term research to assess the long-term effects of using NPs on plant development,soil health,and possible environmental repercussions.
基金Scientific Research Project of Military Logistics Department,Grant Award Number:CLB20J032。
文摘Background:Until January 18,2021,coronavirus disease-2019(COVID-19)has infected more than 93 million individuals and has caused a certain degree of panic.Viral pneumonia caused by common viruses such as respiratory syncytial virus,rhinovirus,human metapneumovirus,human bocavirus,and parainfluenza viruses have been more common in children.However,the incidence of COVID-19 in children was significantly lower than that in adults.The purpose of this study was to describe the clinical manifestations,treatment and outcomes of COVID-19 in children compared with those of other sources of viral pneumonia diagnosed during the COVID-19 outbreak.Methods:Children with COVID-19 and viral pneumonia admitted to 20 hospitals were enrolled in this retrospective multi-center cohort study.A total of 64 children with COVID-19 were defined as the COVID-19 cohort,of which 40 children who developed pneumonia were defined as the COVID-19 pneumonia cohort.Another 284 children with pneumonia caused by other viruses were defined as the viral pneumonia cohort.The epidemiologic,clinical,and laboratory findings were compared by Kolmogorov-Smirnov test,t-test,Mann-Whitney U test and Contingency table method.Drug usage,immunotherapy,blood transfusion,and need for oxygen support were collected as the treatment indexes.Mortality,intensive care needs and symptomatic duration were collected as the outcome indicators.Results:Compared with the viral pneumonia cohort,children in the COVID-19 cohort were mostly exposed to family members confirmed to have COVID-19(53/64 vs.23/284),were of older median age(6.3 years vs.3.2 years),and had a higher proportion of ground-glass opacity(GGO)on computed tomography(18/40 vs.0/38,P<0.001).Children in the COVID-19 pneumonia cohort had a lower proportion of severe cases(1/40 vs.38/284,P=0.048),and lower cases with high fever(3/40 vs.167/284,P<0.001),requiring intensive care(1/40 vs.32/284,P<0.047)and with shorter symptomatic duration(median 5d vs.8d,P<0.001).The proportion of cases with evaluated inflammatory indica
