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Covalent Functionalization of Carbon Nitride Frameworks through Cross-Coupling Reaction

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Covalent Functionalization of Carbon Nitride Frameworks thro...

A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation

中国化学会第三届中国能源材料化学研讨会

作者： jingwen sun Key Laboratory of Soft Chemistry and Functional Materials Nanjing University of Science and Technology

Two-dimensional(2 D) carbon nitride(CN) based semiconductors possess a great promise in robust,low-cost alternative to metal-based materials such as photo,electro and heterogeneous ***,the properties of the final mate...

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Green Energy & Environment 2024年第1期9卷 152-162页

作者： jingwen Ma Xiang Li Guangyu Lei Jun Wang Juan Wang Jian Liu Ming Ke Yang Li Chunwen sun School of Chemical and Environmental Engineering China University of Mining and Technology(Beijing)Beijing100083China State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China Lab of Advanced Nano-structures&Transfer Processes Department of Chemical EngineeringTianjin UniversityTianjin300354China PetroChina Planning and Engineering Institute Beijing100083China

The exploitation of electrocatalysts with high activity and durability for HER is desirable for future energy systems,but it is still a *** have attracted increasing attentions,but the preparation process often needs toxic regents or dangerous reaction ***,we develop a general green method to fabricate metal-rich NMPs anchored on NPG through pyrolyzing DNA cross-linked *** obtained Ru_(2) P-NPG exhibits an ultrasmall overpotential of 7 mV at 10 mA cm^(2) and ultralow Tafel slope of 33 mV dec^(-1) in 1.0 mol L?1 KOH,even better than that of commercial Pt/*** addition,Ru 2 P-NPG also shows low overpotentials of 29 and 78 mV in 0.5 mol L^(-1) H_(2)SO_(4) and 1.0 mol L^(-1) PBS,*** superior activity can be attributed to the ultrafine dispersion of Ru 2 P nanoparticles for more accessible sites,more defects formed for abundant active sites,the two-dimensional plane structure for accelerated electron transfer and mass transport,as well as the regulation of electron distribution of the ***,the synthetic method can also be applied to prepare other metal-rich noble metal phosphides(Pd_(3)P-NPG and Rh_(2)P-NPG),which also exhibits high activity for *** work provides an effective strategy for designing NMP-based electrocatalysts.

关键词： Noble metal phosphides Electrocatalyst Deoxyribonucleic acid Hydrogen evolution pH universal

Au-Fe_(3)O_(4) dumbbell-like nanoparticles based lateral flow immunoassay for colorimetric and photothermal dual-mode detection of SARS-CoV-2 spike protein

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Chinese Chemical Letters 2024年第6期35卷 536-540页

作者： Gengchen Guo Tianyu Zhao Ruichang sun Mingzhe Song Hongyu Liu Sen Wang jingwen Li Jingbin Zeng College of Chemistry and Chemical Engineering and State Key Laboratory of heavy oil processing China University of Petroleum(East China)Qingdao 266580China Huangdao Customs of the People’s Republic of China Qingdao 266580China

Lateral flow immunoassay(LFIA)has become popular in laboratories,at-home testing,and medical diagnostics due to its minimal cost and ***,conventional test strips based on colloidal gold can only obtain qualitative or semi-quantitative results with low *** this work,AuFe_(3)O_(4) dumbbell-like nanoparticles were synthesized and used as the LFIA labelling marker for highly sensitive colorimetric-photothermal dual-mode detection of SARS-CoV-2 spike(S)*** unique dumbbell structure of Au-Fe_(3)O_(4) NPs makes it possible to combine the best features of both Au NPs and Fe_(3)O_(4) *** increased surface area of these NPs enhances their LSPR effect and photothermal effect,which achieves signal amplification to increase *** Au-Fe_(3)O_(4) NPs modified with S protein antibody could identify S protein in samples,which were recognized and accumulated on T-line by another antibody,generating color band for qualitative colorimetric *** T-line was irradiated by laser to obtain temperature change for quantitative detection of *** optimized conditions,the detection limit was 1.22 pg/m L,three orders of magnitude more sensitive than colorimetric ***,the approach was performed on SARS-CoV-2 pseudovirus samples and outperformed traditional colloidal gold *** LFIA platform exhibits significant promise for practical implementation,as it can satisfy the need for low-cost,high-sensitivity,and home-based quantitative detection for respiratory infectious diseases.

关键词： Au-Fe_(3)O_(4) dumbbell-like nanoparticles Photothermal effect LFIA S protein

Restoring cellular calcium homeostasis to rescue ER stress by 1,2-bis(2-aminophenoxy)ethane-N,N,N’,N’-tetraacetic acid acetoxymethyl ester-loaded lipid-mPLGA hybrid-nanoparticles for acute kidney injury therapy

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Chinese Chemical Letters 2024年第3期35卷 337-345页

作者： jingwen Zhang Jiahui Yan Yanan Wang Hong Liu Xueping sun Yuchao Gu Liangmin Yu Changcheng Li Jun Wu Zhiyu He Frontiers Science Center for Deep Ocean Multispheres and Earth System and Key Laboratory of Marine Chemistry Theory and TechnologyMinistry of EducationOcean University of ChinaQingdao 266100China College of Chemistry and Chemical Engineering Ocean University of ChinaQingdao 266100China School of Medicine and Pharmacy Ocean University of ChinaQingdao 266003China Sanya Oceanographic Institution Ocean University of ChinaQingdao 572024China Bioscience and Biomedical Engineering Thrust The Hong Kong University of Science and Technology(Guangzhou)NanshaGuangzhou 511400China Division of Life Science The Hong Kong University of Science and TechnologyHong Kong 999077China

Early pathogenesis of ischemia-reperfusion(I/R)-induced acute kidney injury(AKI)is dominated by intracellular calcium overload,which induces oxidative stress,intracellular energy metabolism disorder,inflammatory activation,and a series of pathologic cascaded reactions that are closely intertwined with self-amplifying and interactive feedback loops,ultimately resulting in cell damage and kidney ***,most nanomedicines originate from the perspective of antioxidant stress,which can only quench existing reactive oxide species(ROS)but cannot prevent the continuous production of ROS,resulting in insufficient *** a safe and promising drug,BAPTA-AM is hydrolyzed into BAPTA by intracellular esterase upon entering cells,which can rapidly chelate with overloaded Ca^(2+),restoring intracellular calcium homeostasis,thus inhibiting ROS regeneration at the ***,we designed a KTP-targeting peptide-modified yolk-shell structure of liposome–poly(ethylene glycol)methyl ether-block-poly(L-lactide-co-glycolic)(mPLGA)hybrid nanoparticles(<100 nm),with the characteristics of high encapsulation rate,high colloid stability,facile modification,and prolonged blood circulation *** the BA/mPLGA@Lipo-KTP was targeted to the site of kidney injury,the cholesteryl hemisuccinate(CHEMS)in the phospholipid bilayer,as an acidic cholesterol ester,was protonated in the simulated inflammatory slightly acidic environment(pH 6.5),causing the liposomes to rupture and release the BA/mPLGA nanoparticles,which were then depolymerized by intracellular *** BAPTA-AM was diffused and hydrolyzed to produce BAPTA,which can rapidly cut off the malignant loop of calcium overload/ROS generation at its source,blocking the endoplasmic reticulum(ER)apoptosis pathway(ATF4–CHOP–Bax/Bcl-2,Casp-12–Casp-3)and the inflammatory pathway(TNF-α–NF-κB–IL-6 axes),thus alleviating pathological changes in kidney tissue,thereby inhibiting the expression of renal tubular marker kidney injury mole

关键词： BAPTA-AM Calcium overload Acid-responsive AKI ER stress

Coiled-coil domain-containing 38 is required for acrosome biogenesis and fibrous sheath assembly in mice

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Journal of Genetics and Genomics 2024年第4期51卷 407-418页

作者： Yaling Wang Xueying Huang Guoying sun jingwen Chen Bangguo Wu Jiahui Luo Shuyan Tang Peng Dai Feng Zhang Jinsong Li Lingbo Wang Shanghai Key Laboratory of Metabolic Remodeling and Health Institute of Metabolism and Integrative BiologyFudan UniversityShanghai 200438China Institute of Reproduction and Development Obstetrics and Gynecology HospitalFudan UniversityShanghai 200011China Shanghai Key Laboratory of Maternal and Fetal Medicine Clinical and Translational Research Center of Shanghai First Maternity and Infant HospitalFrontier Science Center for Stem Cell ResearchSchool of Life Sciences and TechnologyTongji UniversityShanghai 200092China State Key Laboratory of Cell Biology CAS Center for Excellence in Molecular Cell ScienceShanghai Institute of Biochemistry and Cell BiologyChinese Academy of SciencesShanghai 200031China

During spermiogenesis,haploid spermatids undergo dramatic morphological changes to form slender sperm flagella and cap-like acrosomes,which are required for successful *** deformities in flagella cause a male infertility syndrome,multiple morphological abnormalities of the flagella(MMAF),while acrosomal hypoplasia in some cases leads to sub-optimal embryonic developmental ***,evidence regarding the occurrence of acrosomal hypoplasia in MMAF is ***,we report the generation of base-edited mice knocked out for coiled-coil domain-containing 38(Ccdc38)via inducing a nonsense mutation and find that the males are *** Ccdc38-KO sperm display acrosomal hypoplasia and typical MMAF *** find that the acrosomal membrane is loosely anchored to the nucleus and fibrous sheaths are disorganized in Ccdc38-KO *** analyses reveal that Ccdc38 knockout causes a decreased level of TEKT3,a protein associated with acrosome biogenesis,in testes and an aberrant distribution of TEKT3 in *** finally show that intracytoplasmic sperm injection overcomes Ccdc38-related *** study thus reveals a previously unknown role for CCDC38 in acrosome biogenesis and provides additional evidence for the occurrence of acrosomal hypoplasia in MMAF.

关键词： Acrosomal hypoplasia Multiple morphological abnormalities of the flagella(MMAF) Infertility Sperm motility Asthenoteratozoospermia Disease modeling

Migration and role of zinc in biogeochemical cycles in the Antarctic Ice Sheet and the Southern Ocean

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Advances in Polar Science 2024年第2期35卷 157-177页

作者： LIU jingwen LI Chuanjin DU Zhiheng SHI Guitao DING Minghu sun Bo XIAO Cunde State Key Laboratory of the Cryosphere Science Northwest Institute of the Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Polar Science MNRPolar Research Institute of ChinaShanghai 200136China Key Laboratory of Geographic Information Science(Ministry of Education) School of Geographic Sciences and Institute of Eco-ChongmingEast China Normal UniversityShanghai 200241China Institute of Global Change and Polar Meteorology Chinese Academy of Meteorological SciencesBeijing 100081China State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing 100875China

Zinc(Zn),a widespread metal in the Earth’s crust,serves as a crucial nutrient in the Southern Ocean’s primary *** on Zn in Antarctic snow and ice offer insights into the origins of this metal and its transport routes,as well as its impact on the biogeochemical processes within the Antarctic atmosphere–land–ocean *** review examines research on the spatial and temporal distribution of Zn in Antarctic snow and ice,as well as in Southern Ocean *** includes an overview of advanced methods for sampling and analyzing Zn,along with explanations for the observed *** review also discusses various sources of Zn as a nutrient to the Southern ***,it addresses prospective issues related to the use of Zn isotopes in identifying atmospheric sources and their biogeochemical effects on the development of the Southern Ocean ecosystem.

关键词： zinc biogeochemical cycles Antarctic Ice Sheet Southern Ocean

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粒子群优化的模糊聚类在负荷预处理的应用

电力系统及其自动化学报 2015年第7期27卷 78-83页

作者：常鲜戎孙景文华北电力大学电气与电子工程学院保定071003

负荷预处理对于准确的负荷预测来说是至关重要的。为了提高负荷预处理的准确性,提出了将传统的横向纵向比较法与改进模糊聚类算法结合的新型方法。该方法首先采用传统的横向纵向比较法处理突变量较大的负荷和缺失负荷;然后对模糊C均值... 详细信息

负荷预处理对于准确的负荷预测来说是至关重要的。为了提高负荷预处理的准确性,提出了将传统的横向纵向比较法与改进模糊聚类算法结合的新型方法。该方法首先采用传统的横向纵向比较法处理突变量较大的负荷和缺失负荷;然后对模糊C均值算法的目标函数进行改进,将粒子群算法引入,得到改进的模糊聚类算法,进行曲线聚类,得到特征曲线;最后,利用特征曲线对坏数据进行辨识和修正。实例分析表明,通过将粒子群优化的模糊聚类与传统处理方法进行结合,取得了良好的效果,验证了该方法有效性。

关键词：负荷预处理坏数据模糊C均值粒子群算法

风电接入下基于AP聚类的无功功率—电压控制分区方法

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电力系统自动化 2016年第13期40卷 19-27,158页

作者：周琼贠志皓丰颖孙景文电网智能化调度与控制教育部重点实验室(山东大学) 山东省济南市250061

电网无功功率—电压控制分区是分级电压控制的基础。风电接入造成电网运行状态具有随机波动性,为获得能适应各种风电出力稳定的全网分区,考虑以节点间电气距离期望矩阵作为分区依据,采用先进的仿射传播(AP)聚类进行电网节点分区。由于P... 详细信息

电网无功功率—电压控制分区是分级电压控制的基础。风电接入造成电网运行状态具有随机波动性,为获得能适应各种风电出力稳定的全网分区,考虑以节点间电气距离期望矩阵作为分区依据,采用先进的仿射传播(AP)聚类进行电网节点分区。由于PQ节点与PV节点响应过程不同,首先基于AP聚类对PQ节点进行分区;然后以PV节点为论域,在保证区域连通性和可控性的前提下实现PV节点归类至合适的PQ分区,最终完成全网分区。最后从聚类区内耦合性、区间解耦性以及分区电压控制灵敏度出发,定义分区质量评估指标,客观评价分区质量。仿真结果表明了所提方法的可行性和有效性。

关键词：无功功率—电压控制分区分级电压控制风电接入聚类算法

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考虑风电接入的在线风险评估和预防控制

电力自动化设备 2017年第2期37卷 61-68页

作者：丰颖贠志皓周琼孙景文山东大学电网智能化调度与控制教育部重点实验室山东济南250061

随着风电渗透率日趋提高,大规模风电的接入对电网静态电压安全的影响也逐渐增强,风电出力分钟级的显著变化将导致电网运行状态的频繁波动,甚至出现静态电压失稳的可能。为应对该问题,提出考虑大规模风电接入的在线电网静态电压安全风险... 详细信息

随着风电渗透率日趋提高,大规模风电的接入对电网静态电压安全的影响也逐渐增强,风电出力分钟级的显著变化将导致电网运行状态的频繁波动,甚至出现静态电压失稳的可能。为应对该问题,提出考虑大规模风电接入的在线电网静态电压安全风险指标,并搭建基于此风险指标的预防控制模型以降低系统运行风险,提高系统稳定运行裕度。IEEE 9节点系统和IEEE 39节点系统验证了所提风险指标和预防控制模型的有效性。

关键词：风电风险评估预防控制在线计算