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| 1 | Blood compatible heteratom-doped carbon dots for bio-imaging of human umbilical vein endothelial cells显示文摘Carbon dots have unique advantages in biological applications owing to their excellent optical prope rties.However,the biosafety evaluation of carbon dots has limitations owing to cytotoxicity in vitro,and the re is little pre-safety evaluation before in vivo and clinical applications.Whether the carbon dots are or not suitable for applications in vivo,evaluation analysis can be made based on hemolysis and changes in erythrocyte morphology.In this work,a green fluorescent N,S-doped carbon dots(N,S-CDs)were obtained by hydrothermal method,tobias acid,and m-phenylenediamine as precursors.N,S-CDs not only possessed excellent dispersibility,uniform particle size,high quantum yield(37.2%)and stable photoluminescence property but also retain their photostability and stro ng fluorescence intensity in the acid/alkaline solutions,different ionic strengths(NaCl)and under 365 nm UV illumination.Moreove r,the N,S-CDs displayed low cytotoxicity and high cellular uptake efficiency in human umbilical vein endothelial cells(HUVEC)and excellent blood compatibility to the erythrocyte.It is foreseeable that N,S-CDs could be further studied as a promising biological imaging agent in vivo. | Jian Zhong Xinmian Chen Miaoran Zhang Chaoxin Xiao Lulu Cai Waleed Ali Khan Kaixuan Yu Jiayi Cui Lin He | 2020 | Chinese Chemical Letters2020，31，3： | 0 |
| 2 | The Characteristics of Sulfur and Lead Isotope Geochemistry of Laozhaiwan Gold Deposit,Yunnan Province显示文摘1 Introduction Laozhaiwan gold deposit,a part of'Golden Triangle'in Yunnan-Guizhou-Guangxi,was located in Jiumo village in Guangnan county,Yunnan province.The main ore-bearing stratum of the deposit was Posongchong Formation(D1 ps)of the lower Devonian.The structure was well-developed in this area,the ore bodies produced which mainly controlled by the faults.There was a diabasic dike in the northwest of this area,where the grade of the ore bodies was higher.2 S isotope geochemistry The composition ofδ34S in pyrites was 5. | Zhao Dekun Chen Cuihua Gu Xuexiang Dai HongZhang He Chaoxin | 2012 | 地球科学进展2012，27，S1： | 0 |
| 3 | An amorphous FeMoO_(4) nanorod array enabled high-efficiency oxygen evolution electrocatalysis in alkaline seawater显示文摘The development of highly efficient and durable oxygen evolution reaction(OER)catalysts for seawater electrolysis is of great importance for applications.Here,an amorphous FeMoO_(4) nanorod array on Ni foam is reported as a highly active OER electrocatalyst in alkaline seawater,requiring only overpotentials of 303 and 332 mV to achieve 100 and 300 mA·cm^(-2),respectively.Moreover,it shows strong long-term electrochemical durability for at least 50 h. | Jie Tang Shengjun Sun Xun He Hui Zhang Chaoxin Yang Min Zhang Meng Yue Hefeng Wang Yuntong Sun Yonglan Luo Sulaiman Alfaifi Asmaa Farouk Mohamed S.Hamdy Xuping Sun Huiqing Wang Binwu Ying | 2024 | Nano Research2024，17，4： | 0 |
| 4 | Enhancing the stability of Ni Fe-layered double hydroxide nanosheet array for alkaline seawater oxidation by Ce doping显示文摘Electrocatalytic hydrogen production from seawater holds enormous promise for clean energy generation.Nevertheless,the direct electrolysis of seawater encounters significant challenges due to poor anodic stability caused by detrimental chlorine chemistry.Herein,we present our recent discovery that the incorporation of Ce into Ni Fe layered double hydroxide nanosheet array on Ni foam(Ce-Ni Fe LDH/NF)emerges as a robust electrocatalyst for seawater oxidation.During the seawater oxidation process,CeO_(2)is generated,effectively repelling Cl^(-)and inhibiting the formation of Cl O-,resulting in a notable enhancement in the oxidation activity and stability of alkaline seawater.The prepared Ce-Ni Fe LDH/NF requires only overpotential of 390 m V to achieve the current density of 1 A cm^(-2),while maintaining long-term stability for 500 h,outperforming the performance of Ni Fe LDH/NF(430 m V,150 h)by a significant margin.This study highlights the effectiveness of a Ce-doping strategy in augmenting the activity and stability of materials based on Ni Fe LDH in seawater electrolysis for oxygen evolution. | Yongchao Yao Shengjun Sun Hui Zhang Zixiao Li Chaoxin Yang Zhengwei Cai Xun He Kai Dong Yonglan Luo Yan Wang Yuchun Ren Qian Liu Dongdong Zheng Weihua Zhuang Bo Tang Xuping Sun Wenchuang(Walter)Hu | 2024 | Journal of Energy Chemistry2024，91，4： | 0 |
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