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In situ formed Mg(BH_(4))_(2) for improving hydrolysis properties of MgH_(2)

Journal of Magnesium and Alloys 2024年第3期12卷 1204-1214页

作者： Yongyang Zhu Mili Liu liming zeng Yin Wang Daifeng Wu Rui Li Qing Zhou Renheng Tang Fangming Xiao Institute of Resources Utilization and Rare Earth Development Guangdong Provincial Key Laboratory of Rare Earth Development and ApplicationGuangdong Academy of SciencesGuangzhou 510650China School of Materials Science and Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510641China

The hydrolysis of MgH_(2) delivers high hydrogen capacity(15.2 wt%),which is very attractive for real-time hydrogen ***,the formation of a surface passivation Mg(OH)_(2) layer and the large excess of H_(2)O required to ensure complete hydrolysis are two key challenges for the MgH_(2) hydrolysis ***,a low-cost method is reported to synthesize MgH_(2)@Mg(BH_(4))_(2) composite via ball-milling MgH_(2) with cheap and widely available B_(2)O_(3)(or B(OH)_(3)).By adding small amounts of B_(2)O_(3),the in-situ formed Mg(BH_(4))_(2) could significantly promote the hydrolysis of MgH_(2).In particular,the MgH_(2)–10 wt%B_(2)O_(3) composite releases 1330.7 mL·g^(−1) H_(2)(close to 80%theoretical hydrogen generation H_(2))in H_(2)O and 1520.4 mL·g^(−1) H_(2)(about 95%)in 0.5 M MgCl_(2) in 60 min at 26℃ with hydrolysis rate of 736.9 mL·g^(−1)·min^(−1) and 960.9 mL·g^(−1)·min^(−1) H_(2) during the first minute of the hydrolysis,*** addition,the MgCl_(2) solution allows repeated use by filtering and exhibits high cycle stability(20 cycles),therefore leading to much reduced capacity loss caused by the excess H_(2)*** show that by introducing B_(2)O_(3) and recycling the 0.5 M MgCl_(2) solution,the system hydrogen capacity can approach 5.9 wt%,providing a promising hydrogen generation scheme to supply hydrogen to the fuel cells.

关键词： Hydrolysis MgH_(2) Mg(BH_(4))_(2) Hydrogen generation B_(2)O_(3) MgCl_(2)

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银杏叶提取物治疗气滞血瘀证突发性耳聋临床效果

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辽宁中医杂志 2024年第8期51卷 140-143页

作者：杨庆刘婷谢玲肖波曾利明合肥市第八人民医院安徽合肥238000 安徽医科大学附属巢湖医院安徽合肥238000

目的研究银杏叶提取物治疗气滞血瘀证突发性耳聋的临床效果。方法该院2018年1月—2021年12月收治的84例气滞血瘀证突发性耳聋患者采用随机数字表法分为巴曲酶组(42例)和联合银杏叶组(42例)。巴曲酶组采用巴曲酶进行治疗,在巴曲酶组的基... 详细信息

目的研究银杏叶提取物治疗气滞血瘀证突发性耳聋的临床效果。方法该院2018年1月—2021年12月收治的84例气滞血瘀证突发性耳聋患者采用随机数字表法分为巴曲酶组(42例)和联合银杏叶组(42例)。巴曲酶组采用巴曲酶进行治疗,在巴曲酶组的基础上,联合银杏叶组采用银杏叶提取物进行治疗,两组均治疗10 d。统计两组治疗10 d后的疗效及治疗期间不良反应发生情况,比较两组治疗前及治疗10 d后中医证候积分、凝血功能、血液流变学及听力情况。结果治疗10 d后,联合银杏叶组总有效率高于巴曲酶组(P0.05)。结论银杏叶提取物治疗气滞血瘀证突发性耳聋,可有效改善患者中医证候、凝血功能、血液流变学,提高其听力,疗效较好,同时具有良好的安全性。

关键词：突发性耳聋气滞血瘀证银杏叶提取物巴曲酶听力

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澳洲坚果内源激素含量与其生理落果的关系

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中国南方果树 2024年第3期53卷 96-101页

作者：李穆黄思婕谭秦亮黄锦媛赵渊巫辅民曾黎明广西农业科学院广西亚热带作物研究所南宁530001

为探究澳洲坚果早期生理落果机制,采用高效液相色谱法和高效气相色谱法测定澳洲坚果早期生理落果期间正常果和脱落果果柄中赤霉素(GA 3)、生长素(吲哚-3-乙酸IAA)、细胞分裂素(CTK)、脱落酸(ABA)、油菜素内酯(BR)含量以及乙烯(ETH)释放... 详细信息

为探究澳洲坚果早期生理落果机制,采用高效液相色谱法和高效气相色谱法测定澳洲坚果早期生理落果期间正常果和脱落果果柄中赤霉素(GA 3)、生长素(吲哚-3-乙酸IAA)、细胞分裂素(CTK)、脱落酸(ABA)、油菜素内酯(BR)含量以及乙烯(ETH)释放量,并记录落果情况。结果表明,澳洲坚果早期生理落果期间(盛花后30~50 d),落果率为73.76%,落果率与正常果果柄中ABA含量呈显著正相关,与IAA含量呈极显著负相关;正常果果柄中GA 3、IAA和BR平均含量整体高于脱落果,而CTK、ABA平均含量和ETH平均释放量整体低于脱落果;正常果果柄中促进生长激素与抑制生长激素含量比率[IAA/ABA、GA 3/ABA、CTK/ABA、(IAA+GA 3+CTK)/ABA]整体大于脱落果。推测澳洲坚果果柄中低浓度IAA和高浓度ABA是其早期生理落果的主要原因,促进生长激素与抑制生长激素含量比对澳洲坚果早期生理落果有调控作用。

关键词：澳洲坚果果柄内源激素生理落果吲哚-3-乙酸脱落酸

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岗梅止咳合剂联合西药治疗风邪恋肺型感冒后咳嗽临床研究

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新中医 2024年第10期56卷 77-80页

作者：区深恩梁颖阳田惠芳曾黎明张明江门市新会区中医院广东江门529100

目的:观察岗梅止咳合剂联合西药治疗风邪恋肺型感冒后咳嗽的临床疗效。方法:选取100例风邪恋肺型感冒后咳嗽患者,采用随机数字表法分为观察组和对照组,每组50例。治疗过程中,观察组剔除3例,对照组剔除2例,最终纳入研究观察组47例,对照... 详细信息

目的:观察岗梅止咳合剂联合西药治疗风邪恋肺型感冒后咳嗽的临床疗效。方法:选取100例风邪恋肺型感冒后咳嗽患者,采用随机数字表法分为观察组和对照组,每组50例。治疗过程中,观察组剔除3例,对照组剔除2例,最终纳入研究观察组47例,对照组48例。对照组给予西药治疗,观察组在对照组基础上给予岗梅止咳合剂治疗。2组均治疗6 d。比较2组临床疗效、中医证候积分及中文版莱塞斯特咳嗽生命质量问卷(LCQ)评分。结果:治疗后,观察组总有效率95.74%,高于对照组81.25%,差异有统计学意义(P<0.05)。2组主症积分、次症积分、中医证候总分均较治疗前降低,且观察组上述评分均低于对照组,差异均有统计学意义(P<0.05)。2组心理、生理、社会评分及LCQ总分均较治疗前升高,且观察组上述评分均高于对照组,差异均有统计学意义(P<0.05)。结论:岗梅止咳合剂联合西药治疗风邪恋肺型感冒后咳嗽临床疗效较好,可有效缓解患者的临床症状,改善其生活质量。

关键词：感冒后咳嗽风邪恋肺型岗梅止咳合剂中医证候生活质量

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A novel nano-grade organosilicon polymer:Improving airtightness of compressed air energy storage in hard rock formations

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International Journal of Mining Science and Technology 2024年第3期34卷 305-321页

作者： Zhuyan Zheng Guibin Wang Chunhe Yang Hongling Ma liming Yin Youqiang Liao Kai Zhao Zhen zeng Hang Li Yue Han Institute of Rock and Soil Mechanics Chinese Academy of SciencesWuhan 430071China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Geomechanics and Geotechnical Engineering Wuhan 430071China State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing UniversityChongqing 400044China PowerChina Huadong Engineering Corporation Limited Hangzhou 310014China

Enhancing cavern sealing is crucial for improving the efficiency of compressed air energy storage(CAES)in hard rock *** study introduced a novel approach using a nano-grade organosilicon polymer(NOSP)as a sealant,coupled with an air seepage evaluation model that incorporates Knudsen ***,the initial coating application methods were outlined,and the advantages of using NOSP compared to other sealing materials,particularly regarding cost and construction techniques,were also examined and *** results indicated a significant reduction in permeability of rock specimens coated with a 7–10μm thick NOSP ***,under a 0.5 MPa pulse pressure,the permeability decreased to less than 1 n D,and under a 4 MPa pulse pressure,it ranged between4.5×10^(-6)–5.5×10^(-6)m D,marking a 75%–80%decrease in granite *** sealing efficacy of NOSP surpasses concrete and is comparable to rubber *** optimal viscosity for application lies between 95 and 105 KU,and the coating thickness should ideally range from 7 to 10μm,applied to substrates with less than 3%*** study provides new insights into air transport and sealing mechanisms at the pore level,proposing NOSP as a cost-effective and simplified solution for CAES applications.

关键词： Compressed air energy storage Lining Permeability Transient pulse method Hard rock cavern Nano-grade organosilicon polymer coating

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Non-covalent glycosylated gold nanoparticles/peptides nanovaccine as potential cancer vaccines

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Chinese Chemical Letters 2020年第5期31卷 1162-1164页

作者： liming zeng Zonglang Liao Wenwei Li Qijuan Yuan Peng Wu Zhipeng Gu Zhongqiu Liu Guochao Liao Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China International Institute for Translational Chinese MedicineGuangzhou University of Chinese MedicineGuangzhou 510006China School of Biomedical Engineering Sun Yat-sen UniversityGuangzhou 510006.China

Herein,we firstly developed a non-covalent glycosylated gold nanoparticles/peptides nanovaccine which is assembled byβ-cyclodextrin(β-CD)based host-guest *** nanovaccine can generate significant titers of antibodies and improve the therapeutic effect against melanoma,suggesting the immunogenicity of peptide antigens can be improved by loading with this *** novel vaccine carrier provides a platform for the transport of various antigens especially T cell-independent antigens.

关键词： Non-covalent Glycosylation Nanoparticles/peptides nanovaccine β-Cyclodextrin Host-guest recognitions Cancer vaccines

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The profiles of mitochondrial respiration and glycolysis using extracellular flux analysis in porcine enterocyte IPEC-J2

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Animal Nutrition 2015年第3期1卷 239-243页

作者： Bie Tan Hao Xiao Fengna Li liming zeng Yulong Yin Observation and Experiment Station of Animal Nutrition and Feed Science in South-Central China Ministry of Agriculture Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production Key Laboratory of Agro-ecological Processes in Subtropical Region Institute of Subtropical Agriculture Chinese Academy of Sciences University of Chinese Academy of Sciences Jiangxi Agricultural University

The porcine intestinal mucosa require large amounts of energy for nutrient processing and cellular functions and is vulnerable to injury by weaning stress involving bioenergetics failure. The mitochondrial bioenergetic measurement in porcine enterocytes have not been defined. The present study was to establish a method to measure mitochondrial respiratory function and profile mitochondrial function of IPEC-J2 using cell mito stress test and glycolysis stress test assay by XF24 extracellular flux analyzer. The optimal seeding density and concentrations of the injection compounds were determined to be 40,000 cells/well as well as 0.5 μ M oligomycin, 1 μM carbonyl cyanide p-trifluoromethoxy-phenylhydrazone(FCCP) and 1 μM rotenone & antimycin A, respectively. The profiles of mitochondrial respiration and glycolysis confirmed that porcine enterocyte preferentially derived much more energy from glutamine than glucose. These results will provide a basis for further study of mitochondrial function and bioenergetics of the porcine small intestine.

关键词： Mitochondrial respiration Glycolysis Extracellular flux analysis Porcine enterocyte

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Developmental changes in intercellular junctions and Kv channels in the intestine of piglets during the suckling and post-weaning periods

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Journal of Animal Science and Biotechnology 2016年第2期7卷 228-237页

作者： Jing Wang liming zeng Bie Tan Guangran Li Bo Huang Xia Xiong Fengna Li Xiangfeng Kong Gang Liu Yulong Yin Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production Key Laboratory of Agro-ecological Processes in Subtropical Region institute of Subtropical AgricultureChinese Academy of SciencesChangshaHunan 410125China University of the ChineseAcademy of Sciences Beijing 10008China. Science College of Jiangxi Agricultural University NanchangJiangxi 330045China. Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients Hunan Collaborative Innovation Center of Animal Production SafetyChangshaHunan 410000China.

Background： The intestinal epithelium is an important barrier that depends on a complex mixture of proteins and these proteins comprise different intercellular junctions. The purpose of this study was to investigate the postnatal and developmental changes in morphology, intercellular junctions and voltage-gated potassium（Kv） channels in the intestine of piglets during the suckling and post-weaning ***： Samples of the small intestine were obtained from 1-, 7-, 14-, and 21-d-old suckling piglets and piglets on d 1, 3, 5, and 7 after weaning at 14 d of age. The results showed that the percentage of proliferating cell nuclear antigen（PCNA）-positive cells and alkaline phosphatase（AKP） activity, as well as the abundances of E-cadherin,occludin, and Kv1.5 m RNA and claudin-1, claudin-3, and occludin protein in the jejunum were increased from d 1to d 21 during the suckling period（P 〈 0.05）. Weaning induced decreases in the percentage of PCNA-positive cells,AKP activity and the abundances of E-cadherin, occludin and zonula occludens（ZO）-1 m RNA or protein in the jejunum on d 1, 3 and 5 post-weaning（P 〈 0.05）. There were lower abundances of E-cadherin, occludin and ZO-1m RNA as well as claudin-1, claudin-3 and ZO-1 protein in the jejunum of weanling piglets than in 21-d-old suckling piglets（P 〈 0.05）. The abundances of E-cadherin, occludin, ZO-1 and integrin m RNA were positively related to the percentage of PCNA-positive ***： Weaning at 14 d of age induced damage to the intestinal morphology and barrier. While there was an adaptive restoration on d 7 post-weaning, the measured values did not return to the pre-weaning levels, which reflected the impairment of intercellular junctions and Kv channels.

关键词： Intercellular junctions Kv channels Small intestine Piglets Weaning

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振幅整合脑电图与窒息新生儿桡动脉血气分析和头颅MRI的相关性

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中国医学物理学杂志 2022年第8期39卷 1020-1024页

作者：曾利明黄俊杨庆安徽医科大学附属巢湖医院儿科安徽合肥238000

目的:探讨窒息新生儿振幅整合脑电图(aEEG)检查结果与桡动脉血气分析和头颅MRI检查结果的相关性。方法:回顾性研究确诊为新生儿窒息的50例患儿的临床资料,分析不同窒息程度与aEEG异常程度、睡眠-觉醒周期情况和有无痫样活动之间的相关性... 详细信息

目的:探讨窒息新生儿振幅整合脑电图(aEEG)检查结果与桡动脉血气分析和头颅MRI检查结果的相关性。方法:回顾性研究确诊为新生儿窒息的50例患儿的临床资料,分析不同窒息程度与aEEG异常程度、睡眠-觉醒周期情况和有无痫样活动之间的相关性;分析aEEG异常程度与桡动脉血气结果以及MRI异常程度的相关性。结果:患儿窒息程度与aEEG异常程度、睡眠-觉醒周期情况、有无痫样活动均呈正相关(P<0.05);不同aEEG异常程度的患儿之间,pH、氧分压(PO_(2))、二氧化碳分压(PCO_(2))、碱剩余(BE)水平均有显著差异(P<0.05),aEEG正常组PCO_(2)水平显著低于aEEG轻度异常组(P<0.05),BE水平显著高于aEEG轻度异常组(P<0.05),aEEG正常组和aEEG轻度异常组pH、PO_(2)和BE水平均显著高于aEEG重度异常组,PCO_(2)水平则显著低于aEEG重度异常组,差异有统计学意义(P<0.05);患儿aEEG异常程度与MRI异常程度呈正相关(P<0.05)。结论:窒息新生儿aEEG检查结果与桡动脉血气分析和头颅MRI检查结果密切相关,可用于新生儿窒息的超早期诊断。

关键词：新生儿窒息振幅整合脑电图桡动脉动脉血气分析磁共振成像

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In Situ Electrochemical Mn(Ⅲ)/Mn(Ⅳ) Generation of Mn(Ⅱ)O Electrocatalysts for High-Performance Oxygen Reduction

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Nano-Micro Letters 2020年第11期12卷 255-268页

作者： Han Tian liming zeng Yifan Huang Zhonghua Ma Ge Meng Lingxin Peng Chang Chen Xiangzhi Cui Jianlin Shi State Key Lab of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Chemistry and Materials Science Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310021People’s Republic of China College of Chemistry and Molecular Sciences Hubei Key Lab of Electrochemical Power SourcesWuhan UniversityWuhan 430072People’s Republic of China Wuhan University of Science and Technology Wuhan 430081People’s Republic of China College of Material Science and Engineering Donghua UniversityShanghai 201620People’s Republic of China

Among various earth-abundant and noble metal-free catalysts for oxygen reduction reaction(ORR),manganese-based oxides are promising candidates owing to the rich variety of manganese ***,an extremely facile method for the synthesis of cubic and orthorhombic phase coexisting Mn(Ⅱ)O electrocatalyst as an efficient ORR catalyst was *** obtained MnO electrocatalyst with oxygen vacancies shows a significantly elevated ORR catalytic activity with a half-wave potential(E1/2) of as high as 0.895 V,in comparison with that of commercial Pt/C(E1/2=0.877 V).More impressively,the MnO electrocatalyst exhibits a marked activity enhancement after test under a constant applied potential for 1000 s thanks to the in situ generation and stable presence of high-valence manganese species(Mn^3+ and Mn^4+) during the electrochemical process,initiating a synergetic catalytic effect with oxygen vacancies,which is proved to largely accelerate the adsorption and reduction of O_2 molecules favoring the ORR activity *** an excellent ORR catalytic performance of this MnO electrocatalyst is applied in Zn-air battery,which shows an extra-high peak power density of 63.2 mW cm^-2 in comparison with that(47.4 m W cm^-2) of commercial Pt/C under identical test conditions.

关键词： Zinc-air battery In situ generation High-valence manganese species Synergetic catalytic effect

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