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DDQ as an effective p-type dopant for the hole-transport material X1 and its application in stable solid-state dye-sensitized solar cells

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Journal of Energy Chemistry 2018年第2期27卷 413-418页

作者： yanyun zhang Xichuan Yang Weihan Wang Xiuna Wang Licheng Sun State Key Laboratory of Fine Chemicals Dalian University of Technology (DUT) Department of Chemistry School of Chemical Science and EngineeringKTH Royal Institute of Technology

X1（Me O-TPD） is an inexpensive and easily synthesized π-conjugated molecule that has been used as a hole-transport material（HTM） in solid-state dye-sensitized solar cells（ssDSSCs）, achieving relatively high efficiency. In this paper, we characterize the physicochemical properties of 2,3-dichloro-5,6-dicyano-1,4-benzoquinone（DDQ） and show that it is a promising p-dopant in a spin-coating solution with X1 as the HTM. The doped ssDSSCs showed an increase in short-circuit current density from 5.38 mA cm-2 to7.39 mA cm-2, and their overall power conversion efficiency increased from 2.9% to 4.3%. Also, ssDSSCs with DDQ-doped X1 were more stable than the undoped samples, demonstrating that DDQ can act as a p-type dopant in X1 as an HTM for highly efficient, stable ssDSSCs.

关键词： p-Type dopant XI DDQ ssDSSCs

Home ranges and habitat vegetation characters in breeding season of Narcissus Flycatcher and Yellow-rumped Flycatcher

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Frontiers in Biology 2007年第3期2卷 345-350页

作者： WANG Ning zhang yanyun ZHENG Guangmei Ministry of Education Key Laboratory for Biodiversity Sciences and Ecological Engineering College of Life SciencesBeijing Normal UniversityBeijing 100875China

The home ranges of the Narcissus Flycatcher(Ficedula narcissina elisae)and the Yellow-rumped Fly-catcher(***)are measured by radio telemetry in a subalpine forest near Beijing,*** home range is calculated by 100%Minimum Convex Polygon(MCP),and the area varies from 2,000 to 5,000 *** majority of fly-catchers can be found in the bottom of valleys and the under-side of *** is fairly rare for both Flycatcher species to leave their nests more than 70 *** of the species in pair-banding and nest-detecting periods have larger home ranges than those in incubation and rearing *** levels of canopy coverage in the home ranges of Narcissus Flycatchers are significantly higher than that of Yellow-rumped *** are also more tall trees and stumps in the home ranges of Narcissus Flycatchers than in that of Yellow-rumped *** dominant tree species in the home ranges of Narcissus Flycatchers is Dahurian Birch(Betula dahurica),whereas Manchurian Walnut(Juglans mandshurica)is the dominant tree species in the home ranges of Yellow-rumped Flycatchers.

关键词： NarcissusFlycatcher Yellow-runpdeFlycatcher radiotelemetry home range habitat

Reliability of the Brownish-flanked Bush Warbler's soft song in male-male conflict

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Chinese Birds 2015年第2期6卷 107-112页

作者： Canwei Xia Boye Liu Daiping Wang Huw Lloyd yanyun zhang Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering College of Life Sciences Beijing Normal University Division of Biology and Conservation Ecology School of Science and the Environment Manchester Metropolitan University

Background: Soft song is a low-amplitude song produced by many birds. Recent studies have confirmed that soft song is an aggressive signal. For example, the Brownish-flanked Bush Warblers Cettia fortipes use soft song in male-male conflicts, particularly prior to attacks. Although stable signaling systems require that signals be honest on average,models predict that cheating is an acceptable strategy for some individuals or in some ***: This study aimed to test the reliability of soft song as an aggressive signal in the brownish-flanked bush warbler. We used mounted specimens accompanied by broadcast songs or soft songs to simulate a male attempting to invade an existing ***: We found the mounted specimen that coupled playback of soft songs suffered more and quicker attacks from the territory owner and that the relationship between soft song and subsequent attack in the territory owner was far from perfect. We observed territory owners that both over-signaled(i.e., produced soft song but did not attack) and under-signaled(i.e., attacked without producing soft song). Under-signaling territory owners were relatively more commonly than were over-signaling territory owners, particularly in simulated intrusion that coupled playback of soft song with a mount ***: We discuss the cost of producing soft song and the potential benefit of the unreliable use of soft song and propose a new hypothesis for under-signaling with soft song; i.e., under-signaling territory owners might benefit from taking the initiative in fights.

关键词： Aggressive signal Brownish-flanked Bush Warbler Cost Reliability Soft song

Identification of vocal individuality in male cuckoos using different analytical techniques

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Avian Research 2017年第3期8卷 134-140页

作者： Yang Li Canwei Xia Huw Lloyd Donglai Li yanyun zhang Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering College of Life Sciences Beijing Normal University School of Science and Environment Manchester Metropolitan University Provincial Key Laboratory of Animal Resource and Epidemic Disease Prevention College of Life Sciences Liaoning University

Background: Individuality in vocalizations may provide an effective tool for surveying populations of the Common Cuckoo(Cuculus canorus) but there remains few data on which technique to use to identify individuality. In this research, we compared the within-and between-individual variation in cuckoo calls using two different analytical methods, and discuss the feasibility of using call individuality to count male cuckoos within a ***: We recorded vocalization from 13 males, and measured 15 spectro-temporal variables for each call. The majority of these call variables(n = 12) have greater variation between individuals than within individual. We first calculated the similarity(Pearson's R) for each paired calls in order to find a threshold that could distinguish calls emitted from the same or different males, and then counted the number of males based on this distinction. Second, we used the more widely accepted technique of discriminant function analysis(DFA) to identify individual male cuckoos, and compared the correct rate of classifying individuals between the two analytical ***: Similarity of paired calls from the same male was significantly higher than from different males. Under a relatively broad threshold interval, we achieved a high(>90%) correct rate to distinguish calls and an accurate estimate of male numbers. Based on banded males(n = 3), we found the similarity of paired calls from different days was lower when compared with paired calls from the same day, but this change did not obscure individual identification, as similarity values of paired calls from different days were still larger than the threshold used to distinguish calls from the same or different males. DFA also yielded a high rate(91.9%) of correct classification of ***: Our study suggests that identifying individual vocalizations can form the basis of an appropriate survey method for counting male cuckoos within a population, provided the perf

关键词： Vocal individuality Avian acoustics Common Cuckoo Correlation analysis Discriminant function analysis

Comparing post-release survival and habitat use by captive-bred Cabot's Tragopan(Tragopan caboti) in an experimental test of soft-release reintroduction strategies

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Chinese Birds 2016年第3期7卷 133-141页

作者： Boye Liu Li Li Huw Lloyd Canwei Xia yanyun zhang Guangmei Zheng Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering College of Life Sciences Beijing Normal University Hunan Wildlife Rescue and Breeding Center School of Science and Environment Manchester Metropolitan University

Background: Restoring a viable population by reintroduction is the ultimate goal of a large number of ex situ conservation projects for endangered animals. However, many reintroductions fail to establish a population in the wild, partly because released animals cannot acclimate to the native environment of the release site, resulting in very low survival rates. Acclimation training is a technique to resolve this problem, although it does not have positive results in all species. We tested whether acclimation training and soft-release could improve the reintroduction success for captive-bred Cabot's Tragopan(Tragopan caboti), an endangered pheasant in southern ***: Reintroduction of captive-bred Cabot's Tragopan was carried out in the Taoyuandong National Nature Reserve, China from 2010 to 2011. We built a soft-release enclosure for acclimation training in the typical montane habitat of this pheasant. Nine birds were acclimated to the environment of this release site in this cage for more than 50 days before release("trained birds"), while 11 birds remained only in the cage for 3 days prior to release("untrained birds"). Released birds were tagged with a collar ***: Post-release monitoring revealed that the survival rate of trained birds was higher than that of untrained birds after 50 days(trained: 85.7%; untrained: 20.0%). Cox regression analysis showed that there was a significant difference in the mortality rates between the trained and untrained birds. In addition, a survey of the habitat of the experimental and the control groups showed significant differences in habitat selection between the ***: Our study suggests that pre-release acclimatization training is an important factor that can lead to improved survival and habitat selection of captive-bred reintroduced tragopans.

关键词： Diet Habitat selection Post-release survival Reintroduction Survival rate

Fabrication of luminescent patterns using aggregation-induced emission molecules by an electrolytic micelle disruption approach

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Aggregate

Aggregate 2023年第1期4卷 231-237页

作者： Yaqian Zhou Elena Villani Tomoyuki Kurioka yanyun zhang Ikuyoshi Tomita Shinsuke Inagi Department of Chemical Science and Engineering School of Materials and Chemical TechnologyTokyo Institute of TechnologyYokohamaJapan PRESTO Japan Science and Technology Agency(JST)KawaguchiJapan

Herein,we report an electrochemical strategy that could control the location of aggregation-induced emission(AIE)molecules on patterned electrodes in a precise and facile way,producing photoluminescent and electrochemiluminescent patterns with a variety of colors.A micelle composed of electroactive surfactants was broken during the electrooxidation process,in which AIE molecules inside these micelles were released on patterned *** patterned electrodes were pretreated by not only metal,but also multifarious conducting polymers(CPs).An in-depth investigation clarified a correlation between the variety of CPs used as electrodes and the oxidation rate of the electroactive surfactant due to different catalytic performances of ***,combined with wireless and gradient features of bipolar electrochemistry,a gradient luminescent pattern was easily *** current studies suggest more abundant luminescent patterns using AIE luminophores can be developed by such an electrochemical method,in both of graphical shapes and emitting colors.

关键词： aggregation-induced emission bipolar electrochemistry catalysis conducting polymers electrochemiluminescence electrolytic micelle disruption

Dendritic Cell as Therapeutic Vaccines against Tumors and Its Role in Therapy for Hepatocellular Carcinoma

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Cellular & Molecular Immunology 2006年第3期3卷 197-203页

作者： Kang Sun Liang Wang yanyun zhang Department of General Surgery the First Affiliated Hospital of Soochow University Suzhou 215006 China Shanghai Institute of Immunology Medical School of Shanghai Jiaotong University Shanghai 200025 China

Dendritic cells （DCs） are the most potent professional antigen-presenting cells, and capable of stimulating naive T cells and driving primary immune responses. DCs are poised to capture antigen, migrate to draining lymphoid organs, and after a process of maturation, select antigen-specific lymphocytes to which they present the processed antigen, thereby inducing immune responses. The development of protocols for the ex vivo generation of DCs may provide a rationale for designing and developing DC-based vaccination for the treatment of tumors. There are now several strategies being applied to upload antigens to DCs and manipulate DC vaccines. DC vaccines are able to induce therapeutic and protective antitumor immunity. Numerous studies indicated that hepatocellular carcinoma （HCC） immunotherapies utilizing DC-presenting tumor-associated antigens could stimulate an antitumour T cell response leading to clinical benefit without any significant toxicity. DC-based tumor vaccines have become a novel immunoadjuvant therapy for HCC. Cellular ＆ Molecular Immunology. 2006;3（3）：197-203.

关键词： dendritic cell vaccination hepatocellular carcinoma

Cell–cell contact with proinflammatory macrophages enhances the immunotherapeutic effect of mesenchymal stem cells in two abortion models

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Cellular & Molecular Immunology 2019年第12期16卷 908-920页

作者： Yanhong Li Di zhang Ling Xu Lin Dong Ji Zheng Yikong Lin Jiefang Huang yanyun zhang Yu Tao Xingxing Zang Dajin Li Meirong Du Laboratory for Reproductive Immunology NHC Key Lab of Reproduction Regulation(Shanghai Institute of Planned Parenthood Research)Shanghai Key Laboratory of Female Reproductive Endocrine Related DiseasesHospital of Obstetrics and GynecologyFudan University Shanghai Medical CollegeShanghaiChina Department of Clinical Pharmacy Zhongshan HospitalFudan UniversityShanghaiChina Department of Immunology Medical College of Soochow UniversitySuzhouJiangsuChina Key Laboratory of Stem Cell Biology Institute of Health SciencesShanghai Jiao Tong University School of Medicine(SJTUSM)&Shanghai Institutes for Biological SciencesChinese Academy of SciencesShanghaiChina Department of Medicine Montefiore Medical CenterAlbert Einstein College of MedicineBronxNYUSA

Mesenchymal stem cells(MSCs),which are pluripotent cells with immunomodulatory properties,have been considered good candidates for the therapy of several immune disorders,such as inflammatory bowel diseases,concanavalin A-induced liver injury,and graft-versus-host *** embryo is a natural allograft to the maternal immune system.A successful pregnancy depends on the timely extinction of the inflammatory response induced by embryo implantation,followed by the switch to a tolerant immune microenvironment in both the uterus and the *** infiltration of immune cells and serious inflammatory responses are triggers for embryo rejection,which results in ***,we demonstrated that adoptive transfer of MSCs could prevent fetal loss in a lipopolysaccharide(LPS)-induced abortion model and immune response-mediated spontaneous abortion *** immunosuppressive MSCs alleviated excessive inflammation by inhibiting CD4+T cell proliferation and promoting the decidual macrophage switch to M2 in a tumor necrosis factor-stimulated gene-6(TSG-6)-dependent ***-tocell contact with proinflammatory macrophages increased the TSG-6 production by the MSCs,thereby enhancing the suppressive regulation of T cells and ***,proinflammatory macrophages in contact with the MSCs upregulated the expression of CD200 on the stem cells and facilitated the reprogramming of macrophages towards an anti-inflammatory skew through the interaction of CD200 with CD200R on proinflammatory ***,the results demonstrate that a TSG-6-mediated paracrine effect,reinforced by cell-to-cell contact between MSCs and proinflammatory macrophages,is involved in the mechanism of MSC-mediated abortion relief through the induction of immune *** study also indicates the potential application of MSCs in clinical recurrent miscarriages.

关键词： inflammatory effect thereby

Inflammation-induced inhibition of chaperone-mediated autophagy maintains the immunosuppressive function of murine mesenchymal stromal cells

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Cellular & Molecular Immunology 2021年第6期18卷 1476-1488页

作者： Jie zhang Jiefang Huang Yuting Gu Mingxing Xue Fengtao Qian Bei Wang Wanlin Yang Hongshuang Yu Qiwei Wang Xin Guo Xinyuan Ding Jina Wang Min Jin yanyun zhang CAS Key Laboratory of Tissue Microenvironment and Tumor Shanghai Institute of Nutrition and HealthShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghaiChina Pediatric Institute of Soochow University Institutes for Translational MedicineSoochow UniversitySuzhouChina Shanghai Institute of Immunology Shanghai Jiao Tong University School of MedicineShanghaiChina Department of Urology and Shanghai Key Laboratory of Organ Transplantation Zhongshan HospitalFudan UniversityShanghaiChina

Macroautophagy has been implicated in modulating the therapeutic function of mesenchymal stromal cells(MSCs).However,the biological function of chaperone-mediated autophagy(CMA)in MSCs remains ***,we found that CMA was inhibited in MSCs in response to the proinflammatory cytokines interferon-γ(IFN-γ)and tumor necrosis factor-α(TNF-α).In addition,suppression of CMA by knocking down the CMA-related lysosomal receptor lysosomal-associated membrane protein 2(LAMP-2A)in MSCs significantly enhanced the immunosuppressive effect of MSCs on T cell proliferation,and as expected,LAMP-2A overexpression in MSCs exerted the opposite effect on T cell *** effect of CMA on the immunosuppressive function of MSCs was attributed to its negative regulation of the expression of chemokine C-X-C motif ligand 10(CXCL10),which recruits inflammatory cells,especially T cells,to MSCs,and inducible nitric oxide synthase(iNOS),which leads to the subsequent inhibition of T cell proliferation via nitric oxide(NO).Mechanistically,CMA inhibition dramatically promoted IFN-γplus TNF-α-induced activation of NF-κB and STAT1,leading to the enhanced expression of CXCL10 and iNOS in ***,we found that IFN-γplus TNF-α-induced AKT activation contributed to CMA inhibition in *** interestingly,CMA-deficient MSCs exhibited improved therapeutic efficacy in inflammatory liver *** together,our findings established CMA inhibition as a critical contributor to the immunosuppressive function of MSCs induced by inflammatory cytokines nd highlighted a previously unknown function of CMA.

关键词： chaperone-mediated autophagy mesenchymal stromal cells immunosuppressive capacity inflammatory microenvironment