Dear Editor,We report a case of band keratopathy who experienced several ocular surgeries,secondary uveitis and glaucoma which eventually led to severe band keratopathy.We use commonly-used vacuum blood collection tub...Dear Editor,We report a case of band keratopathy who experienced several ocular surgeries,secondary uveitis and glaucoma which eventually led to severe band keratopathy.We use commonly-used vacuum blood collection tubes with ethylenediaminetetraacetic acid dipotassium salt(EDTA-K2)to prepare chelation solution on-spot to remove the calcium deposits on the corneal surface.It is proved to be relatively safety,efficacy,cost-effective.展开更多
It is well known that the low-valent Cu species are important catalytically active centers in the reduction of CO_(2) to hydrocarbon products.However,the Cu(l)-based catalysts are easily reduced during the electroredu...It is well known that the low-valent Cu species are important catalytically active centers in the reduction of CO_(2) to hydrocarbon products.However,the Cu(l)-based catalysts are easily reduced during the electroreduction of CO_(2),which causes phase transformation of catalysts and leads to a decrease of intrinsic catalytic activity.Therefore,it is of great significance to synthesize Cu(l)-based catalysts with specific interactions that can keep the catalytically active Cu sites stable in the electrocatalytic process.Based on the above considerations,a hexanuclear Cu cluster with strong cuprophilic interactions has been designed and utilized as a secondary building unit(SBU)to construct a stable metal-organic framework(MOF)electrocatalyst(NNU-50).As expected,the NNU-50 has served as an effective electrocatalyst for the CO_(2)-to-CH4 conversion by exhibiting a high Faradaic efficiency for CH4(FEcH4)of 66.40%and a large current density of~400 mA·cm-2 at-1.0 V vs.reversible hydrogen electrode(RHE),which is one of the best catalytic performances among the stable MOF electrocatalysts until now.This work contributes more ideas for the design of stable and efficient MOF-based electrocatalysts for CO_(2) reduction reaction.展开更多
PbTe/SnTe hybrid nanocrystals with designed shape, chemical composition and narrow size distribution were synthesized by an efficient solvothermal approach. This approach enables mass and economical synthesis of PbTe-...PbTe/SnTe hybrid nanocrystals with designed shape, chemical composition and narrow size distribution were synthesized by an efficient solvothermal approach. This approach enables mass and economical synthesis of PbTe-based nanocrystals. The organic ligands were completely removed by pretreatment with a super-hydride solution, making it possible to fabricate fully dense and robust thermoelectric devices with increased electrical conductivity.展开更多
文摘Dear Editor,We report a case of band keratopathy who experienced several ocular surgeries,secondary uveitis and glaucoma which eventually led to severe band keratopathy.We use commonly-used vacuum blood collection tubes with ethylenediaminetetraacetic acid dipotassium salt(EDTA-K2)to prepare chelation solution on-spot to remove the calcium deposits on the corneal surface.It is proved to be relatively safety,efficacy,cost-effective.
基金financially supported by the National Natural Science Foundation of China(Nos.21871141,21871142,22071109,22105080,and 92061101)the Excellent Youth Foundation of Jiangsu Natural Science Foundation(No.BK20211593)Priority Academic Program Development of Jiangsu Higher Education Institutions,and the Foundation of Jiangsu Collaborative Innovation Center of Biomedical Functional Materials.
文摘It is well known that the low-valent Cu species are important catalytically active centers in the reduction of CO_(2) to hydrocarbon products.However,the Cu(l)-based catalysts are easily reduced during the electroreduction of CO_(2),which causes phase transformation of catalysts and leads to a decrease of intrinsic catalytic activity.Therefore,it is of great significance to synthesize Cu(l)-based catalysts with specific interactions that can keep the catalytically active Cu sites stable in the electrocatalytic process.Based on the above considerations,a hexanuclear Cu cluster with strong cuprophilic interactions has been designed and utilized as a secondary building unit(SBU)to construct a stable metal-organic framework(MOF)electrocatalyst(NNU-50).As expected,the NNU-50 has served as an effective electrocatalyst for the CO_(2)-to-CH4 conversion by exhibiting a high Faradaic efficiency for CH4(FEcH4)of 66.40%and a large current density of~400 mA·cm-2 at-1.0 V vs.reversible hydrogen electrode(RHE),which is one of the best catalytic performances among the stable MOF electrocatalysts until now.This work contributes more ideas for the design of stable and efficient MOF-based electrocatalysts for CO_(2) reduction reaction.
基金supported by the National Natural Science Foundation of China(No.51173074)the Key Project of Chinese Ministry of Education(No.212099)the Promotive Research Fund for Young and Middle-aged Scientists of Shandong Province (No.BS2012CL010)
文摘Received 30 November 2012 Received in revised form 24 December 2012 Accepted 26 December 2012 Available online 29 January 2013
基金supported by the National Natural Science Foundation of China(No.51173074)the Key Project of Chinese Ministry of Education(No.212099)+1 种基金the Promotive Research Fund for Young and Middle-aged Scientists of Shandong Province(No. BS2012CLO10)Toyota Motor Engineering & Manufacturing North America(TEMA) Inc
文摘PbTe/SnTe hybrid nanocrystals with designed shape, chemical composition and narrow size distribution were synthesized by an efficient solvothermal approach. This approach enables mass and economical synthesis of PbTe-based nanocrystals. The organic ligands were completely removed by pretreatment with a super-hydride solution, making it possible to fabricate fully dense and robust thermoelectric devices with increased electrical conductivity.
