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highly crystallization-induced emissive luminophores with mechanoluminescent features for two-photon harvesting fluorescence imaging and latent fingerprint identification

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Nano Research 2024年第7期17卷 6475-6482页

作者： Jian Lu Juan Gao Rui-Xuan Qian Shuai-hua Wang fa-Kun Zheng Guo-Cong Guo Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

Fluorescence imaging can be employed in fields of medical treatment,astronomical exploration,and national defense *** fluorescence imaging often takes the single-photon techniques,which is vulnerable to background interference and ***,two-photon fluorescence imaging can achieve much higher-resolution fluorescence imaging for reducing scattering and deeper ***,by assembling the tetraphenylethylene backbones with nontoxic and non-noble K^(+)ions,compound 1([(hdma)K(h_(2)ettc)]_(n),h_(4)ettc=4',4''',4''''',4'''''''-(ethene-1,1,2,2-tetrayl)tetrakis(([1,1'-biphenyl]-4-carboxylic acid)))with the crystallization-induced emissions exhibited charming fluorescence imaging under two-photon excitation microscopy(TPEM).Besides,luminescent powders based on compound 1 can achieve high-resolution fingerprint recognition,providing secure access control and identification for a novel authentication *** with the commercial fluorescent dyes coumarin-6,the as-synthesized compound 1 showed great solvent stability,indicating its durability against harsh ***,compound 1 shows mechanoluminescent properties for the perturbation of weak supramolecular interactions within ordered arrangements of the h_(2)ettc^(2−)*** novel compound has provided an important insight to the development of twophoton fluorescence imaging and advanced external-stimuli responsive materials.

关键词： crystallization-induced emission fluorescence imaging two-photon absorption fingerprint recognition mechanoluminescence

Generating electron spin qubit in metal-organic frameworks via spontaneous hydrolysis

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Chinese Chemical Letters 2024年第7期35卷 529-533页

作者： Xian-fa Jiang Chongyun Shao Zhongwen Ouyang Zhao-Bo hu Zhenxing Wang You Song State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Wuhan National high Magnetic Field Center&School of Physics Huazhong University of Science and TechnologyWuhan 430074China Chaotic Matter Science Research Center Faculty of Materials Metallurgy and ChemistryJiangxi University of Science and TechnologyGanzhou 341000China Shanghai Institute of Optics and Fine Mechanics Chinese Academy of SciencesShanghai 201800China Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry Jiangxi University of Science and TechnologyGanzhou 341000China

Qubit,as the basic unit of quantum operations,has at least two quantum states for *** itself has no superimposable quantum states,but after injecting N atoms,the resulted nitrogenvacancy centers form excellent-performance *** the same purpose,we can also obtain qubits by modifying the matrix without effective quantum ***-1({Cu_(3)(BTC)_(2)(h_(2)O)_(3)},BTC=1,3,5-benzene-tricarboxylate)with S=0 ground state is electron paramagnetic resonance(EPR)silent,so it is not a qubit ***,the spontaneously hydrolyzed hKUST-1 produces dilute uncoupled Cu^(Ⅱ)ions with S=1/*** this paper,we utilized the hydrolysis products of hKUST-1 to obtain qubits and assembled a core-shell structural hKUST-1@ZIF-8 by ZIF-8({Zn(mim)_(2)},mim=2-methylimidazole)coated over hKUST-1 for controlling the *** experimental results clearly show that the qubits come from hydrolyzed Cu^(Ⅱ)***,the dilute uncoupled Cu^(Ⅱ)ions in this assembly can effectively reduce the decoherence of *** EPR studies show that the T_(2) of this compound is 1067 ns at 10 K.

关键词： hydrolysis Qubit Decoherent times Metal-organic framework Core-shell structure

Multiscale control of MnO_(2) growth via[WO_(6)]-perturbed[MnO_(6)]assembly toward a favorable balance between capacitance and rate performance

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Rare Metals 2024年第4期43卷 1658-1671页

作者： Jin-Kang Liu Tian-Shuo Yang Zhi-Bin Ren Adekunle-Adedapo Obisanya Xin-Yi Tan Yan-Di Rao Jun-Shuang Zhou fa-Ming Gao Jian-Ren Wang hebei Key Laboratory of Applied Chemistry Yanshan UniversityQinhuangdao066004China

Although pseudocapacitive manganese dioxide(MnO_(2))integrates the high-power merit of carbonaceous materials with the high-energy merit of battery-type materials,it still has a long way to go in achieving a more satisfactory balance of higher energy and power density,and in decoupling the relationship of structural characteristics with energy storage *** realize such goals,a bottom-up[WO_(6)]-perturbed[MnO_(6)]assembly strategy has been developed here due to their similar structure,yet mismatched lattice *** facile protocol is capable of finely controlling the morphology and crystal structure of MnO_(2)by adjusting its internal[WO_(6)]***,the as-prepared W_xMnO_(2)is treated as an ideal platform to scrutinize the correlations of the structure with the energy storage *** operando Raman spectra and finite element analysis have fully demonstrated the superiority of the locally ordered defects-enriched structure of W_(0.02)-MnO_(2),which could reach a favorable balance between the ion diffusion equilibrium time and the number of active *** a result,the W_(0.02)-MnO_(2)is able to deliver a high capacitance of 292 F·g^(-1)at a current density of 1 A·g^(-1)and a remarkable rate performance with a 60%capacity retention at a current density of 50 A·g^(-1).The further unveiled structure-performance relationship provides a guideline for the design of better pseudocapacitive energy storage devices.

关键词： Supercapacitors Pseudocapacitive materials MnO_(2) Tungsten doping Crystal structure regulation

Identified the hydrochemical and the sulfur cycle process in subsidence area of Pingyu mining area using multi-isotopes combined with hydrochemistry methods

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Journal of Groundwater Science and Engineering 2024年第1期12卷 62-77页

作者： hui-Meng Su fa-Wang Zhang Jing-Yu hu Jin-Feng Lei Wei Zuo Bo Yang Yu-hua Liu School of Environmental Studies China University of GeosciencesWuhan 430074China Center for hydrogeology and Environmental Geology China Geological SurveyBaoding 071051Hebei ProvinceChina henan Branch China South-to-North Water Diversion Middle Route Corporation LimitedZhengzhou 450046China The Fifth Geological Survey Institute Henan Provincial Bureau of Geology and Mineral ResourcesZhengzhou 450012China Natural Resources Science and Technology Innovation Center of henan Province(Research on Eco-Environmental Assessment and Restoration Technology) Zhengzhou 450012China

Groundwater serves as an important water source for residents in and around mining *** achieve scientific planning and efficient utilization of water resources in mining areas,it is essential to figure out the chemical formation process and the ground water sulfur cycle that transpire after the coal mining *** on studies of hydrochemistry and D,^(18)O-h_(2)O,^(34)S-SO_(4)isotopes,this study applied principal component analysis,ion ratio and other methods in its attempts to reveal the hydrogeochemical action and sulfur cycle in the subsidence area of Pingyu mining *** study discovered that,in the studied area,precipitation provides the major supply of groundwater and the main water chemistry effects are dominated by oxidation dissolution of sulfide minerals as well as the dissolution of carbonate and silicate *** sulfate in groundwater primarily originates from oxidation and dissolution of sulfide minerals in coal-bearing strata and human *** mixed sulfate formed by the oxidation of sulfide minerals and by human activities continuously recharges the groundwater,promoting the dissolution of carbonate rock and silicate rock in the process.

关键词： PCA Ion ratio Water chemistry Sulfide minerals Multi-isotopes Subsidence area of mining area

NLRP3 activation in macrophages promotes acute intestinal injury in neonatal necrotizing enterocolitis

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World Journal of Pediatrics 2024年第2期20卷 153-164页

作者： Bo Shi Cheng-Jie Lyu Zhen-Kai Le hao-Sen Ji Yi Xiao Yuan-Yuan Zhang Shou-Jiang huang Lin-Jun Yu Qiang Shu Jin-fa Tou Deng-Ming Lai Department of Neonatal Surgery Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhou 310052China Department of Pulmonology Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhou 310052China Department of Thoracic and Cardiovascular Surgery Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhou 310052China

Background Macrophages are involved in various immune inflammatory disease *** study aimed to investigate the role and mechanism of macrophages in regulating acute intestinal injury in neonatal necrotizing enterocolitis(NEC).Methods CD68,nucleotide-binding oligomerization domain,leucine-rich repeat,and pyrin domain-containing 3(NLRP3),cysteine aspartate-specific protease-1(caspase-1),and interleukin-1β(IL-1β)in paraffin sections of intestinal tissues from NEC and control patients were detected with immunohistochemistry,immunofluorescence,and western *** pet milk,hypoxia and cold stimulation were used to establish a mouse(wild type and Nlrp3^(-/-))model of *** mouse macrophage(RAW 264.7)and rat intestinal epithelial cell-6 lines were also cultured followed by various ***,intestinal epithelial cell injuries,and IL-1β release were *** Compared to the gut“healthy”patients,the intestinal lamina propria of NEC patients had high macrophage infiltration and high NLRP3,caspase-1,and IL-1β ***,in vivo,the survival rate of Nlrp3^(-/-)NEC mice was dramatically improved,the proportion of intestinal macrophages was reduced,and intestinal injury was decreased compared to those of wild-type NEC ***3,caspase-1,and IL-1β derived from macrophages or supernatant from cocultures of macrophages and intestinal epithelial cells also caused intestinal epithelial cell *** Macrophage activation may be essential for NEC ***3/caspase-1/IL-1β cellular signals derived from macrophages may be the underlying mechanism of NEC development,and all these may be therapeutic targets for developing treatments for NEC.

关键词： Caspase-1 Interleukin-1β Macrophage Necrotizing enterocolitis NLRP3

无创正压通气在重症支气管哮喘合并呼吸衰竭急诊治疗中的效果评价

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中国实用医药 2024年第8期19卷 38-41页

作者：王法辽宁省新民市人民医院 110300

目的观察无创正压通气在重症支气管哮喘合并呼吸衰竭急诊治疗中的效果。方法 62例重症支气管哮喘合并呼吸衰竭患者,遵循双盲随机分组原则分为对照组和实验组,各31例。两组患儿均给予常规治疗,对照组在常规治疗基础上采用有创正压通气治... 详细信息

目的观察无创正压通气在重症支气管哮喘合并呼吸衰竭急诊治疗中的效果。方法 62例重症支气管哮喘合并呼吸衰竭患者,遵循双盲随机分组原则分为对照组和实验组,各31例。两组患儿均给予常规治疗,对照组在常规治疗基础上采用有创正压通气治疗,实验组在常规治疗基础上采用无创正压通气治疗。比较两组患者基本生命指征、炎症指标、血气分析指标、并发症发生情况。结果治疗24 h后,实验组心率(96.65±7.14)次/min低于对照组的(112.32±7.11)次/min,收缩压(125.65±4.67)mm hg(1 mm hg=0.133 kPa)、舒张压(85.45±3.54)mm hg均高于对照组的(120.54±4.69)、(73.16±3.51)mm hg(Ph后,实验组C反应蛋白、白细胞介素-6、白细胞介素-17分别为(8.54±1.43)mg/L、(114.54±24.65)pg/ml、(3.54±0.15)ng/L,低于对照组的(15.24±1.47)mg/L、(148.65±24.61)pg/ml、(5.24±0.11)ng/L(Ph后,实验组动脉血氧分压(80.14±3.03)mm hg、动脉血氧饱和度(94.56±1.56)%均高于对照组的(73.26±3.06)mm hg、(87.21±1.52)%,动脉血二氧化碳分压(40.24±3.61)mm hg低于对照组的(46.18±3.64)mm hg(Ph后,实验组第1秒用力呼气容积、第1秒用力呼气容积与用力肺活量的比值、每分钟通气量分别为(1265.54±21.31)ml、(82.56±5.71)%、(7.73±0.62)L,均大于对照组的(1043.26±21.27)ml、(75.61±5.72)%、、(5.25±0.59)L(P<0.05)。实验组并发症发生率9.68%低于对照组的32.26%(P<0.05)。结论重症支气管哮喘合并呼吸衰竭患者急诊治疗中应用无创正压通气可显著提升临床效果。

关键词：无创正压通气重症支气管哮喘呼吸衰竭急诊治疗

Experimental study of channel delay impact on throughput performance of TCP and its extensions in space

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2005年第10期6卷 1015-1020页

作者： WANG Ru-fa WANG Ru h. School of Computer Science Gansu Institute of Political Science and Law Lanzhou 730070 China Department of Electrical Engineering. Lamar University Beaumont TX 77710-1829 USA

Substantially long round trip time (RTT) in space channel hurts TCP interactions between the sending and receiving ends, and limits the usefulness and effectiveness of TCP feedback. Space Communication Protocol Standards-Transport Protocol (SCPS-TP) is a Transmission Control Protocol (TCP) enhancement method aimed at improving its performance in space and interplanetary Internet and is expected to have capability of being feasible applied to experimental evaluation of the effectiveness of SCPS-TP in coping with long channel delay. This paper presents an experimental evaluation of channel delay impact on throughput performance of SCPS-TP over LEO/GEO-stationary space links using a test-bed, compared with the widely deployed TCP.

关键词： Intemet protocols Satellite communication Channel delay TCP SCPS-TP

基于响应面分析的玉米粉发酵与营养多目标优化

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粮食与饲料工业 2024年第5期 39-42,48页

作者：何发生江西科技师范大学江西南昌330038 江西省赣州市会昌中等专业学校江西赣州342699

为提高玉米粉的加工适用性,采用单因素试验和响应面优化试验,对鼠李糖乳杆菌发酵玉米粉工艺进行优化,并分析了优化前后玉米粉的营养成分变化。结果表明,玉米粉发酵最佳工艺为:发酵温度34℃、发酵时间96 h、料液比1.6∶1、鼠李糖乳杆菌... 详细信息

为提高玉米粉的加工适用性,采用单因素试验和响应面优化试验,对鼠李糖乳杆菌发酵玉米粉工艺进行优化,并分析了优化前后玉米粉的营养成分变化。结果表明,玉米粉发酵最佳工艺为:发酵温度34℃、发酵时间96 h、料液比1.6∶1、鼠李糖乳杆菌接种量20%;在最佳发酵工艺下,玉米面团的黏性最大,为13.12 mJ,优化倍数为1.73;且经过发酵处理后,玉米粉中的总黄酮和总酚含量分别达2.42、1.95 mg/g,蛋白质含量为13.5%,小分子肽含量为1.54%。综上,经过鼠李糖乳杆菌发酵的玉米粉具有良好的加工适用性,营养成分更好。

关键词：玉米粉响应面鼠李糖乳杆菌发酵工艺黏性总黄酮

生物炭和秸秆还田对咸水滴灌棉田土壤微生物群落特征及功能差异的影响

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环境科学 2024年第6期45卷 3571-3583页

作者：郭晓雯向贵琴张发朝江山闵伟石河子大学农学院石河子832003

干旱区淡水资源不足,农业用水主要依赖于含盐的浅层地下水,但长期咸水灌溉会造成土壤盐分积累,土壤环境恶化,不利于作物生长.因此,在长期淡水(0.35 d S·m^(-1),FW)和咸水(8.04 d S·m^(-1),SW)灌溉的基础上,采用等碳量设计向土壤中添... 详细信息

干旱区淡水资源不足,农业用水主要依赖于含盐的浅层地下水,但长期咸水灌溉会造成土壤盐分积累,土壤环境恶化,不利于作物生长.因此,在长期淡水(0.35 d S·m^(-1),FW)和咸水(8.04 d S·m^(-1),SW)灌溉的基础上,采用等碳量设计向土壤中添加生物炭(3.7 t·hm^(-2),BC)和秸秆(6 t·hm^(-2),ST),旨在明晰生物炭和秸秆还田对盐渍化土壤理化性质及微生物群落结构的影响.结果表明,咸水灌溉显著增加土壤含水量、电导率、速效磷和全碳的含量,但显著降低了p h值和速效钾的含量.生物炭和秸秆还田均显著增加土壤含水量、速效磷、速效钾和全碳的含量,但显著降低了咸水灌溉条件下的电导率值.各处理土壤优势菌门为变形菌门、放线菌门、酸杆菌门、绿弯菌门和芽单胞菌门.咸水灌溉显著增加芽单胞菌门和变形菌门的相对丰度,但显著降低酸杆菌门和放线菌门的相对丰度.在淡水灌溉条件下,生物炭还田显著降低绿弯菌门的相对丰度;秸秆还田显著增加变形菌门的相对丰度,但显著降低酸杆菌门、放线菌门、绿弯菌门和芽单胞菌门的相对丰度.在咸水灌溉条件下,生物炭还田显著降低绿弯菌门和芽单胞菌门的相对丰度;秸秆还田显著增加变形菌门的相对丰度,但显著降低酸杆菌门、放线菌门、绿弯菌门和芽单胞菌门的相对丰度.LEf Se分析表明,咸水灌溉降低了土壤微生物的潜在标志物和功能数量;咸水灌溉条件下,生物炭还田增加了土壤微生物的潜在标志物和功能数量;秸秆还田增加土壤微生物的潜在功能数量;秸秆还田增加土壤微生物的潜在标志物和功能数量.RDA结果显示,土壤微生物群落和功能结构与EC_(1∶5)、SWC和p h值显著相关.咸水灌溉会恶化土壤环境,不利于农业生产,其中EC_(1∶5)、SWC和p h值是驱动土壤微生物群落和功能结构变化的重要因子,采用生物炭和秸秆还田可减缓盐分对土壤和作物的危害,为提高农业生产力奠定基础.

关键词：宏基因组生物炭秸秆咸水土壤微生物