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The role of cAMP-dependent protein kinase A in the formation of long-term memory in Bactrocera dorsalis

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Journal of Integrative Agriculture 2024年第2期23卷 605-620页

作者： Jinxin yu Yanmin Hui Jiayi He yinghao yu Zhengbing Wang Siquan Ling Wei Wang Xinnian Zeng Jiali Liu National Key Laboratory of Green Pesticides/Guangdong Engineering Research Center for Insect Behavior Regulation/College of Plant Protection South China Agricultural UniversityGuangzhou 510642China College of Life Science and Agronomy Zhoukou Normal UniversityZhoukou 466001China Guangdong Provincial Key Laboratory of Silviculture Protection and UtilizationGuangdong Academy of ForestryGuangzhou 510520China

The cAMP-dependent protein kinase A(PKA)signaling pathway has long been considered critical for long-term memory(LTM)*** studies have mostly focused on the role of PKA signaling in LTM induction by multiple spaced conditioning with less attention to LTM induction by a single ***,we conducted behavioral-pharmacology,enzyme immunoassay and RNA interference experiments to study the role of the PKA signaling pathway in LTM formation in the agricultural pest Bactrocera dorsalis,which has a strong memory capacity allowing it to form a two-day memory even from a single conditioning *** found that either blocking or activating PKA prior to conditioning pretreatment affected multiple spaced LTM,and conversely,they did not affect LTM formed by single *** was further confirmed by enzyme-linked immunosorbent assay(ELISA)and silencing of the protein kinase regulatory subunit 2 and catalytic subunit *** together,these results suggest that activating PKA during memory acquisition helps to induce the LTM formed by multiple spaced conditioning but not by a single *** findings challenge the conserved role of PKA signaling in LTM,which provides a basis for the greater diversity of molecular mechanisms underlying LTM formation across species,as well as possible functional and evolutionary implications.

关键词： Bactrocera dorsalis LTM multiple spaced PKA single

关节镜直视下闭合复位经皮克氏针固定治疗Jakob Ⅱ度肱骨外髁骨折

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中华小儿外科杂志 2024年第8期45卷 730-733页

作者：惠涛涛王军俞颖豪林伟枫苏州大学附属无锡九院小儿骨科无锡214063

目的探讨关节镜直视下闭合复位经皮克氏针固定治疗Jakob II度儿童肱骨外髁骨折(lateral condylar humeral fracture,LCHF)的方法和临床效果。方法回顾性分析无锡市第九人民医院小儿骨科2019年1月至2021年12月收治的Jakob Ⅱ度肱骨外髁骨... 详细信息

目的探讨关节镜直视下闭合复位经皮克氏针固定治疗Jakob II度儿童肱骨外髁骨折(lateral condylar humeral fracture,LCHF)的方法和临床效果。方法回顾性分析无锡市第九人民医院小儿骨科2019年1月至2021年12月收治的Jakob Ⅱ度肱骨外髁骨折46例患儿的临床资料,其中男30例,女16例,年龄为(6.2±2.1)岁,年龄范围为2~10岁;左侧20例,右侧26例。记录手术时间、骨折愈合时间、并发症发生情况及肘关节活动度,采用Broberg和Morrey评分标准评价肘关节功能。结果所有骨折均为新鲜骨折,骨折至手术时间为(2.7±0.7)d,时间范围是2~4 d。46例患儿受伤机制均为摔伤,其中有3例合并尺骨鹰嘴骨折,2例患儿合并桡骨颈骨折。46例患儿术中采用关节镜直视下成功复位,复位后行经皮交叉克氏针内固定,术中X线显示骨折复位满意。骨折愈合时间为(7.4±0.8)周,时间范围为6~8周;手术时间为(37.6±4.2)min,时间范围为36~45 min。随访时间为(21.5±5.2)个月,时间范围为13~30个月,术后患儿均未出现针道感染、骨折不愈合、延迟愈合、畸形愈合等并发症。末次随访时,患肢肘关节屈曲活动范围与健侧对比角度丢失(3.3±1.1)°,伸直活动范围与健侧对比角度丢失(2.8±0.9)°。根据Broberg和Morrey评分标准评定肘关节功能:优43例,良3例。结论关节镜直视下闭合复位经皮克氏针固定治疗儿童肱骨外侧髁骨折是一种安全有效的术式,可以减少软组织剥离并降低了畸形愈合或缺血性坏死的风险。

关键词：骨折闭合复位肱骨外髁骨折关节镜手术

Composite electrolytes based on poly(ethylene oxide) and binary ionic liquids for dye-sensitized solar cells

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Science China Chemistry 2012年第8期55卷 1608-1613页

作者： yu yinghao JIANG Peng WANG FuRong WANG LeFu LI XueHui State Key Laboratory of Pulp&Paper Engineering School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510640China

The sunlight is the largest single available source of clean and renewable energy to ensure human society＇s sustainable devel- opment. Owing to their low production cost and high energy conversion efficiency, dye-sensitized solar cells （DSSCs） have been regarded as good alternatives to conventional photovoltaic devices. Herein, a series of composite electrolytes based on poly（ethylene oxide）（PEO） and the binary ionic liquids 1-propyl-3-methy-imidazolium iodide （[PMIm]I） and l-ethyl-3- methylimidazolium thiocyanate （[EMIm][SCN]） were prepared and then applied to fabricate six DSSCs. The composite elec- trolytes were characterized by fourier transform infrared spectroscopy （FTIS）, X-ray diffraction （XRD）, and electrochemical impedance spectra （EIS）. It was shown that the addition of binary ionic liquids would reduce the degree of crystallinity of PEO thus improving the ionic conductivities of the electrolytes by about 2 orders of magnitude. Investigation on the photovoltaic performances of these DSSCs showed that the fill factor （FF） could reach up to 0.67 and energy conversion efficiency （η） could reach up to 4.04% under AM 1.5 full sunlight （100 mW/cm^2）.

关键词： solar energy dye-sensitized solar cell PEO binary ionic liquid composite electrolyte

Dye-sensitized TiO2@SBA-15 composites: Preparation and their application in photocatalytic desulfurization

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Green Energy & Environment 2020年第1期5卷 114-120页

作者： Guoqing Guo Haiyang Guo Feng Wang Liam John France Wanxin Yang Zhihong Mei yinghao yu School of Chemistry and Chemical Engineering South China University of Technology

Photocatalytic oxidation desulfurization has become a research hotspot in recent years because of mild reaction conditions, less energy consumption and high selectivity. In this paper, TiO2 was loaded onto SBA-15 molecular sieves and sensitized with organic dyes(2, 9-dichloroquinacridone, DCQ) to extend its spectral response range from ultraviolet light to visible light. The catalyst DCQ-X%TiO2@SBA-15 was characterized by BET measurements, X-ray diffraction, Fourier transform infrared spectroscopy and Ultraviolet-visible diffuse reflection spectra, and then it was applied for photocatalytic oxidation desulfurization of gasoline. The effects of different catalytic systems, TiO2 concentration, catalyst dosage, and different model sulfur compounds on catalytic desulfurization performance were investigated. Experimental results show that DCQ-TiO2@SBA-15 has a better performance than the unsensitized TiO2@SBA-15, and the desulfurization rate can reach up to 96.1% in a reaction time of 90 min.

关键词： TiO2 Dye-sensitization Gasoline desulfurization Photocatalysis

Synthesis of polymeric ionic liquids material and application in CO2 adsorption

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Journal of Energy Chemistry 2017年第5期26卷 909-918页

作者： Haiying Ran Jiexin Wang Ahmed A.Abdeltawab Xiaochun Chen Guangren yu yinghao yu Beijing Key Laboratory of Membrane Science and Technology&College of Chemical Engineering Beijing University of Chemical TechnologyBeijing 100029China State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China Department of Chemistry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou 510640GuangdongChina

We synthesized one quaternary ammonium polymeric ionic liquids（PILs）P[VBTHEA]Cl and three imidazolium PILs of P[VEIm]Br, P[VEIm]BF, P[VEIm]PFby free-radical polymerization in solution. These PILs were characterized by FT-IR,H-NMR,C-NMR, TGA, XRD and SEM. Their COadsorption capacities were measured under different pressures and temperatures by constant-volume technique. It was observed that quaternary ammonium PILs of P[VBTHEA]Cl have higher adsorption capacity for COthan those imidazolium PILs, following P[VBTHEA]Cl > P[VEIm]PF> P[VEIm]BF> P[VEIm]Br, which may be ascribed to higher positive charge density on ammonium cation than that on imidazolium cation and thus stronger interaction with CO, consistent with the results from dual-mode adsorption model that ammonium PILs have much higher CObulk absorption than imidazolium PILs. COadsorption capacity of P[VBTHEA]Cl is 9.02 mg/g under 295 K and 1 bar, which is comparable to that of some other PILs, and is much higher than that of the corresponding ILs monomer. These PILs have good adsorption selectivity for COover Nand regeneration efficiency.

关键词： Polymeric ionic liquids CO2 Adsorption

Integrating Zeolite and Layered Double Hydroxide for Highly Selective Catalytic Production ofγ-Valerolactone

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CCS Chemistry 2024年第3期6卷 652-662页

作者： Mingkun Gao Guoju Yang Guangyuan He Risheng Bai Jialiang Li yinghao Liu Qiang Zhang Guangrui Chen Donghai Mei Jihong yu State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryInternational Center of Future ScienceJilin UniversityChangchun 130012 School of Materials Science and Engineering Tiangong UniversityTianjin 300387

The production ofγ-valerolactone(GVL)from biomass derivatives levulinic acid(LA)based on acidbase metallic catalysts offers a sustainable pathway to the synthesis of valuable chemicals and ***,the development of efficient metallic catalysts with tunable Lewis acid–base and Brønsted acid sites remains a ***,for the first time,we integrated zeolite and layered double hydroxide(LDH),in a core–shell structure,wherein zeolite and CoFe-LDH provided the Brønsted acidic sites and Lewis acid sites,***,oxygen vacancies(OV_(x))acting as Lewis bases were generated on the surface of LDH via Ga *** efficient cascade catalytic reaction from LA to GVL was successfully achieved over the designed Beta@LDH-OVx catalyst,affording a superior conversion of LA(>99.9%)and an impressive selectivity to GVL(89.18%).Importantly,the“memory effect”of LDH endowed the catalyst with excellent regeneration of metal active *** functional theory calculations revealed that the introduced OVx facilitated the adsorption of carbonyl oxygen in LA and boosted the production of GVL through the synergistic effect of acid/base sites in the composite *** work presents a rational design route for the construction of multifunctional catalysts by coupling zeolites and LDHs for highly selective catalytic conversion of biomass.

关键词： zeolite layered double hydroxide oxygen vacancies biomass γ-valerolactone

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苔藓植物与环境重金属污染监测

生态学杂志 2006年第2期25卷 201-206页

作者：安丽曹同俞鹰浩上海师范大学生命与环境科学学院上海200234

苔藓植物是公认的最为敏感的大气污染指示植物之一,它具有灵敏、精确和直接等特点,现已被广泛应用于生物监测环境重金属污染研究领域。本文从苔藓植物监测重金属污染系统的原理、特点、影响因素、生态学及化学监测方法等方面进行了综述... 详细信息

苔藓植物是公认的最为敏感的大气污染指示植物之一,它具有灵敏、精确和直接等特点,现已被广泛应用于生物监测环境重金属污染研究领域。本文从苔藓植物监测重金属污染系统的原理、特点、影响因素、生态学及化学监测方法等方面进行了综述,并介绍了此项研究的历史、现状及展望,以期促进国内深入开展苔藓植物对环境重金属污染的生物指示、监测研究工作。

关键词：苔藓指示植物生物监测重金属污染

上海市小羽藓属植物重金属含量及其与环境的关系

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应用生态学报 2006年第8期17卷 1490-1494页

作者：安丽曹同俞鹰浩上海师范大学生命与环境科学学院上海200234

应用原子吸收法对上海市13个样点的小羽藓植物体及相应土壤样品中的Cu、Pb、Cd、Zn、Cr5种重金属元素含量进行了测定．通过对植物体内含量的聚类分析，将13个样点按重金属污染程度的轻重分为3个组：1）污染严重点，包括桂林公园、复兴... 详细信息

应用原子吸收法对上海市13个样点的小羽藓植物体及相应土壤样品中的Cu、Pb、Cd、Zn、Cr5种重金属元素含量进行了测定．通过对植物体内含量的聚类分析，将13个样点按重金属污染程度的轻重分为3个组：1）污染严重点，包括桂林公园、复兴公园、光启公园3个样点，均位于市区交通繁忙地带，其小羽藓体内重金属含量分别为：Cu35．25—50．36mg·kg^-1、Pb55．50—65．00mg·kg^-1、cd 1．68—2．30mg·kg^-1、Zn829．63～1140．13mg·kg^-1、Cr7．41～16．41mg·kg^-1；2）污染点，包括长风公园、古钟园、中山公园、和平公园、上海师范大学徐汇校区5个样点，均位于市区近郊，小羽藓体内重金属含量分别为：Cu18．51-62．50mg·kg^-1、Pb14．38—34．25mg·kg^-1、Cd0．81-1．40mg·kg^-1、Zn354．25—671．75mg·kg^-1、Cr3．62—25．08mg·kg^-1；3）相对清洁点，包括佘山、大观园、罗泾、植物园、崇明东平国家森林公园5个样点，位于上海市远郊，小羽藓体内重金属含量分别为：Cu11．13-16．41mg·kg^-1、Pb4．63—27．25mg·kg^-1、Cd0．93-1．28mg·kg^-1、Zn489．25-1086．75mg·kg^-1、Cr1．53—7．62mg·kg^-1．结果表明，小羽藓属苔藓植物可作为监测上海地区环境重金属污染的良好指示植物．苔藓植物体内重金属含量水平与土壤重金属含量存在一定的相关性，而且也受其他因素的影响．

关键词：苔藓植物小羽藓属生物指示重金属污染聚类分析上海市

部分析因设计法优化分散聚合制备单分散种子微球

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离子交换与吸附 2006年第3期22卷 254-260页

作者：于英豪刘坐镇徐环昕邬行彦华东理工大学生物反应器工程国家重点实验室上海华震科技有限公司

采用分散聚合法,以正丁醇为分散介质、苯乙烯为单体、聚乙烯吡咯烷酮(PVP)为分散剂、偶氮二异丁腈(AIBN)为引发剂,制备单分散聚苯乙烯微球作为色谱填料的种子。实验以微球的平均粒径为主要考察指标,以GSD为次要考察指标,通过部分析因设... 详细信息

采用分散聚合法,以正丁醇为分散介质、苯乙烯为单体、聚乙烯吡咯烷酮(PVP)为分散剂、偶氮二异丁腈(AIBN)为引发剂,制备单分散聚苯乙烯微球作为色谱填料的种子。实验以微球的平均粒径为主要考察指标,以GSD为次要考察指标,通过部分析因设计,获得了粒径为10μm的单分散(GSD=1.06)微球。

关键词：灌注色谱分散聚合单分散正丁醇析因设计