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The roles of thyroid hormone receptor and T3 in metamorphosis of Haliotis diversicolor

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Journal of Oceanology and limnology 2019年第2期37卷 745-758页

作者： wang Guodong ZHAnG lili XU Jianbo YIn Cheng ZHAnG Ziping wang Yilei Key laboratory of Healthy Mariculture for the East China sea Ministry of Agriculture Fisheries College Jimei University Xiamen 361021 China College of Animal science Fujian Agriculture and Forestry University Fuzhou 350002 China

Thyroid hormone is a kind of important hormone which regulates metamorphosis. Its role is well described in amphibian metamorphosis. Thyroid hormones (T3 and T4) have also been demonstrated to play a role in metamorphosis of marine invertebrates. However, the mechanism of thyroid hormone in metamorphosis of marine invertebrates remains unknown. A homolog of vertebrate thyroid hormone receptor (TR) was cloned and identified in abalone Haliotis diversicolor and was named HdTR . The mRnA expressions of HdTR , thyroid peroxidase ( TPO ), thyroid peroxidase 1 ( TPO1 ), idothyronine deiodinase Ⅲ( IDⅢ) and integrin alpha-v ( ITGAv ) had significant diff erence in metamorphosis of H . diversicolor . Metamorphosis rate and mortality rate were significantly diff erent in HdTR RnAi experiment and T3 inducing experiment. In RnAi experiment, ITGAv and CCnD1 (cyclin D1) expression of dsRnA HdTR exposing group were significantly lower than those of blank control and negative control. But CTnnB (catenin beta) expression of dsRnA HdTR exposing group was higher than that those of blank control and negative control. ERK (extracellular signal regulated kinases) and PI3K (phosphoinositide-3-kinase) had no significant diff erence in RnAi experiment. Moreover, ITGAv of 1 μmol/l T3 group was significantly lower than that of 0 μmol/l T3 group, PI3K expression of 10 μmol/l T3 group was higher than that of 0 μmol/l T3 group, and the other genes expression had no significant diff erence in T3 inducing experiment. The data of genes expression suggested that CCnD1 might be an eff ector gene of TR genomic action, while CTnnB might be regulated by unliganded TR. CCnD1 and CTnnB may be involved in cell proliferation of metamorphosis. T3 might regulate the expression level of PI3K via nongenomic way. These results shed light on the mechanism of thyroid hormone in abalone metamorphosis.

关键词： thyroid hormone receptor thyroid hormone (TH)(T3) abalone metamorphosis

Electrochemical Preparation of v2O3 from navO3 and Its Reduction Mechanism

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Journal of Wuhan University of Technology(Materials science) 2017年第5期32卷 1019-1024页

作者：翁威王明涌 GOnG Xuzhong wang Zhi wang Dong GUO Zhancheng state Key laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083 China national Engineering laboratory for Hydrometallurgical Cleaner Production Technology Key Laboratory of Green Process and EngineeringInstitute of Process Engineering Chinese Academy of Sciences Beijing 100190 China

vanadium trioxide（v2O3） was directly prepared by navO3 electrolysis in na Cl molten salts. Electrolysis products were characterized by X-ray diffraction（XRD）, scanning electron microscopy（sEM） and energy dispersive spectroscopy（EDs）. The existing state and electrochemical behavior of navO3 were also studied. The results indicated that v2O3 can be obtained from navO3. vC and C were also formed at high cell voltage, high temperature, and long electrolysis time. During electrolysis, navO3 was dissociated to na＋ and vO3-in na Cl molten salt. navO3 was initially electro-reduced to v2O3 on cathode and na2O was released simultaneously. na2CO3 was formed due to the reaction between na2O and CO2. The production of C was ascribed to the electro-reduction of CO3（2-）. vC was produced due to the reaction between C and v2O3.

关键词： molten salt electrolysis v2O3 navO3 molten naCl

Effects of direct stray current on the performance of cathodic disbonding epoxy powder coatings

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Petroleum science 2019年第6期16卷 1417-1429页

作者： Yan-Yu Cui Rui-Tao Bu De-You wang Yu-Jun wang College of Airport Civil Aviation University of ChinaTianjin 300300People’s Republic of China Beijing Aviation Oil Construction limited Company Beijing 100012China

The influence of the direction and magnitude of direct(DC)stray current on the disbonding performance of epoxy powder coating was studied by using electrochemical impedance spectroscopy and scanning electron microscopy *** results show that the application of DC stray current could accelerate the anodic *** peeling degree of the coating increases as the magnitude of positive DC stray current interference increases in the range of 2–*** 16v positive stray current disturbance,the degree of coating disbonding *** the application of negative stray current,the coating peeling becomes more serious,and the degree of peeling increases as the DC stray current increases.

关键词： Epoxy powder coating DC stray current Coating disbanding

Evaluation of the Impact of Observations on Blended sea surface Winds in a Two-Dimensional variational scheme Using Degrees of Freedom

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Journal of Meteorological Research 2017年第6期31卷 1123-1132页

作者： Ting wang Jie XIAnG Jianfang FEI Yi wang Chunxia lIU Yuanxiang lI Institute of Meteorology and Oceanography National University of Defense TechnologyNanjing 211101 Key laboratory of Mesoscale severe Weather of Ministry of Education Nanjing UniversityNanjing 210093 Guangdong Institute of Tropical and Marine Meteorology of China Meteorological Administration Guangzhou 510080 school of Aeronautics andAstronautics Shanghai Jiao Tong UniversityShanghai 200240

This paper presents an evaluation of the observational impacts on blended sea surface winds from a two- dimensional variational data assimilation （2D-var） scheme. We begin by briefly introducing the analysis sensitivity with respect to observations in variational data assimilation systems and its relationship with the degrees of freedom for signal （DFs）, and then the DFs concept is applied to the 2D-var sea surface wind blending scheme. Two meth- ods, a priori and a posteriori, are used to estimate the DFs of the zonal （u） and meridional （v） components of winds in the 2D-var blending scheme. The a posteriori method can obtain almost the same results as the a priori method. Because only by-products of the blending scheme are used for the a posteriori method, the computation time is re- duced significantly. The magnitude of the DFs is critically related to the observational and background error statistics. Changing the observational and background error variances can affect the DFs value. Because the observation error variances are assumed to be uniform, the observational influence at each observational location is related to the background error variance, and the observations located at the place where there are larger background error variances have larger influences. The average observational influence of u and v with respect to the analysis is about 40%, implying that the background influence with respect to the analysis is about 60%.

关键词： sea surface wind blending sensitivity observational influence degrees of freedom for signal

low-bandgap polymers with quinoid unit as π bridge for high-performance solar cells

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Journal of Energy Chemistry 2020年第1期29卷 180-187,I0007页

作者： Bilal shahid Xiyue Yuan Qian wang Di Zhou Ergang wang Xichang Bao Dangqiang Zhu Renqiang Yang Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101ShandongChina Center of Materials science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Department of Chemistry and Chemical Engineering/Applied Chemistry Chalmers University of TechnologyGothenburg SE-41296Sweden

To construct efficient low band gap polymers,increasing the Quinone structure of the polymer backbone could be one desirable *** this work,two D–Q–A–Q polymers P1 and P2 were designed and synthesized with thiophenopyrrole diketone(TPD)and benzothiadiazole(BT)unit as the core and ester linked thieno[3,4-b]thiophene(TT)segment as π-bridging,and the main focus is to make a comparative analysis of different cores in the influence of the optical,electrochemical,photochemical and morphological *** with the reported PBDTTEH–TBTTHD-i,P1 exhibited the decreased HOMO energy level of-5.38 e v and lower bandgap of 1.48 e ***,when replaced with BT core,P2 showed a red-shifted absorption profile of polymer but with up-shifted HOMO energy *** fabricated the photovoltaic devices in conventional structure,just as expected,the introduction of ester substituent made an obvious increase of vOC from 0.63 to 0.74 v for ***,due to the deep HOMO energy level,higher hole mobility and excellent phase separation with PC71 BM,a superior photovoltaic performance(PCE=7.13%)was obtained with a short-circuit current density(JsC)of 14.9 m A/cm^2,significantly higher than that of P2(PCE=2.23%).Generally,this study highlights that the strategy of inserting quinoid moieties into D–A polymers could be optional in lBG-polymers design and presents the importance and comparison of potentially competent core groups.

关键词： low bandgap polymer side-chain engineering Quinone structure π-bridging

High-performance zinc-ion batteries enabled by electrochemically induced transformation of vanadium oxide cathodes

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Journal of Energy Chemistry 2021年第9期30卷 233-240页

作者： Yang li wang Yang Wu Yang Yongfeng Huang Guoxiu wang Chengjun Xu Feiyu Kang liubing Dong College of Chemistry and Materials science Jinan UniversityGuangzhou 511443China Centre for Clean Energy Technology University of Technology Sydney2007 Australia Tsinghua shenzhen International Graduate school Tsinghua UniversityShenzhen 518055China

Rechargeable aqueous zinc-ion batteries(ZIBs) have become a research hotspot in recent years,due to their huge potential for high-energy,fast-rate,safe and low-cost energy *** realize good electrochemical properties of ZIBs,cathode materials with prominent Zn^(2+) storage capability are highly ***,we report a promising ZIB cathode material based on electrochemically induced transformation of vanadium ***,K_(2) v_6 O_(16)·1.5 H_(2) O nanofibers were synthesized through a simple stirring method at near room temperature and then used as cathode materials for ZIBs in different *** cathode presented superior Zn^(2+) storage capability in Zn(OTf)_(2) aqueous electrolyte,including high capacity of 321 mAh/g,fast charge/discharge ability(96 mAh/g delivered in 35 s), high energy density of 235 Wh/kg and good cycling *** analysis evidenced that in Zn(OTf)_(2) electrolyte,Zn^(2+) intercalation in the first discharge process promoted K_(2) v_6 O_(16)·1.5 H_(2) O nanofibers to transform into Zn_(3+x)v_(2) O_7(OH)_(2)·2 H_(2) O nanoflakes,and the latter served as the Zn^(2+)-storage host in subsequent charge/discharge *** from open-framework crystal structure and sufficiently exposed surface,the Zn_(3+x)v_(2) O_7(OH)_(2)·2_H2 O nanoflakes exhibited high Zn^(2+) diffusion coefficient,smaller charge-transfer resistance and good reversibility of Zn^(2+) intercalation/de-intercalation,thus leading to superior electrochemical *** in Zns04 aqueous electrolyte,the cathode material cannot sufficiently transform into Zn_(3+x)v_(2) O_7(OH)_(2)·2 H_(2) O thereby corresponding to inferior electrochemical *** mechanism and influencing factors of such a transformation phenomenon was also *** work not only reports a high-performance ZIB cathode material based on electrochemically induced transformation of vanadium oxides,but also provides new insights into Zn^(2+)-storage el

关键词： Zinc-ion battery Cathode material vanadium oxide Electrochemically induced transformation

Hierarchically porous n-doped carbon derived from biomass as oxygen reduction electrocatalyst for high-performance Al–air battery

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Journal of Energy Chemistry 2020年第6期29卷 119-125,I0005页

作者： Yanqiu wang Jiayu Hao Jiawen Yu Hongjian Yu Keke wang Xuetao Yang Jie li Wenzhang li school of Chemistry and Chemical Engineering Central South UniversityChangsha 410083HunanChina Hunan Provincial Key laboratory of Efficient and Clean Utilization of Manganese Resources Central South UniversityChangsha 410083HunanChina

Developing large-scale and highly efficient oxygen reduction reaction(ORR)catalysts acts a vital role in realizing wide application of metal–air ***,we propose a gas-foaming strategy to fabricate sustainable and 3D hierarchically porous n-doped carbon with high specific surface area and abundant defects sites derived from *** obtained catalyst exhibits prominent ORR property with higher half-wave potential(0.861 v)and slightly lower kinetic current density(32.44 m A cm^-2),compared to Pt/C(0.856 v and 43.61 m A cm^-1).Furthermore,employing it as catalyst of air cathode,the Al–air battery delivers remarkable discharge performance with excellent power density of 401 m W cm^-2,distinguished energy density of 2453.4 Wh kg^-1 and extremely high open-circuit voltage of 1.85 v among the reported metal–air batteries in the *** gas-foaming strategy for full utilization of biomass affords a chance to explore scalable advanced catalysts in metal–air battery.

关键词： Gas-foaming strategy Biomass Hierarchically porous structure Oxygen reduction reaction Al–air battery

nitrogen-doped hierarchically porous carbon spheres for low concentration CO_(2) capture

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Journal of Energy Chemistry 2021年第2期30卷 168-174,I0007页

作者： Yang li Jing wang sisi Fan Fanan wang Zheng shen Hongmin Duan Jinming Xu Yanqiang Huang CAs Key laboratory of science and Technology on Applied Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of sciences Beijing 100049China school of Ecological Environment and Urban Construction Fujian University of TechnologyFuzhou 350118FujianChina

synthesis of spherical carbon beads with effective CO_2 capture capability is highly desirable for large scale application of CO2 sorption, but remains challenging. Herein, a facile and efficient strategy to prepare nitrogen-doped hierarchically porous carbon spheres was developed via co-pyrolyzation of poly(vinylidene chloride) and melamine in alginate gel beads. In this approach, melamine not only serves as the nitrogen precursor, but also acts as a template for the macropores structures. The nitrogen contents in the hierarchically porous carbon spheres reach a high level, ranging from 11.8 wt% to 14.7 wt%, as the melamine amount increases. Owing to the enriched nitrogen functionalities and the special hierarchical porous structure, the carbon spheres exhibit an outstanding CO_2 capture performance, with the dynamic capacity of as much as about 7 wt% and a separation factor about 49 at 25 °C in a gas mixture of CO_2/n_2(0.5:99.5, v/v).

关键词： Carbon sphere CO_(2)capture Hierarchical porous materials nitrogen-doped carbon Poly(vinylidene chloride)

Drug-nanoencapsulated PlGA microspheres prepared by emulsion electrospray with controlled release behavior

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Regenerative Biomaterials 2016年第5期3卷 309-317页

作者： shenglian Yao Huiying liu shukui Yu Yuanyuan li Xiumei wang luning wang school of Materials science and Engineering University of Science and Technology BeijingBeijing 100083China state Key laboratory of new Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Department of Oral and Maxillofacial surgery School of StomatologyDalian Medical UniversityDalian 116044China Institute for neuroscience Capital Medical UniversityBeijing 100069China

The development of modern therapeutics has raised the requirement for controlled drug delivery system which is able to efficiently encapsulate bioactive agents and achieve their release at a desired rate satisfying the need of the practical *** this study,two kind of aqueous model drugs with different molecule weight,Congo red and albumin from bovine serum(BsA)were nanoencapsulated in poly(Dl-lactic-co-glycolic acid)(PlGA)microspheres by emulsion *** the preparation process,the aqueous phase of drugs was added into the PlGA chloroform solution to form the emulsion *** emulsion was then electrosprayed to fabricate drugnanoencapsulated PlGA *** morphology of the PlGA microspheres was affected by the volume ratio of aqueous drug phase and organic PlGA phase(v_(w)/v_(o))and the molecule weight of model *** laser scanning microcopy showed the nanodroplets of drug phase were scattered in the PlGA microspheres homogenously with different distribution patterns related to v_(w)/v_(o).With the increase of the volume ratio of aqueous drug phase,the number of nanodroplets increased forming continuous phase gradually that could accelerate drug release ***,BsA showed a slower release rate from PlGA microspheres comparing to Congo red,which indicated the drug release rate could be affected by not only v_(w)/v_(o)but also the molecule weight of model *** brief,the PlGA microspheres prepared using emulsion electrospray provided an efficient and simple systemto achieve controlled drug release at a desired rate satisfying the need of the practices.

关键词： PlGA microspheres drug nanoencapsulation emulsion electrospray controlled drug release