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| 1 | Effects of melatonin implantation on cashmere yield,fibre characteristics,duration of cashmere growth as well as growth and reproductive performance of Inner Mongolian cashmere goats显示文摘Background:Exogenous melatonin could induce cashmere growth.However,induced growth of cashmere fleece by melatonin implants cannot be combined with the typical growth,resulting in earlier shedding followed by another cycle of cashmere growth.To address this issue,we examine the effects on the cashmere yield,fibre characteristics,and the growth and reproductive performance of cashmere goats of planned administration of melatonin.Methods:Eighteen half-sib,female goats were assigned to two treatments(n = 9) including a control and a treatment where melatonin(2 mg/kg BW) was implanted at the end of April and end of June.Cashmere growth and shedding were observed for approximately 1 year following implantation.Fibre samples were collected monthly to determine cumulative cashmere length.Initiation and cessation dates for cashmere growth as well as the rate of cashmere growth were calculated.Cashmere yield,weight gain of dam,kidding date,litter size,and birth weight were also recorded.Results:Melatonin implantation increased cashmere yield by 34.5%(control 553.7 g vs.melatonin 745.0 g;P< 0.01),cashmere length by 21.3%(control 95.2 mm vs.melatonin 115.4 mm;P < 0.01),and decreased fibre diameter by 4.4%(control 14.6 μm vs.melatonin 14.0 μm;P < 0.03).In melatonin-treated goats,the average initiation date was earlier than in control goats(May 18,2013 vs.July 2,2013;P< 0.01) but there was a similar cessation date(March 22,2014 vs.March 27,2014).Consequently,the duration of cashmere growth was longer in melatonin-treated goats than in control goats(307 vs.270 days;P< 0.01).The final BW,average daily gain,kidding date,litter size,and birth weight were not influenced by melatonin implantation.Conclusions:These data indicate that melatonin implantation(2 mg/kg BW) on two occasions(late April and June)increased cashmere yield by combining the induced growth of cashmere fleece with the typical growth and decreased the fibre diameter without changing dam growth rate or reproductive performance. | Chunhui Duan Jianhai Xu Changmian Sun Zhihai Jia Wei Zhang | 2015 | Journal of Animal Science and Biotechnology2015，6，4： | 18 |
| 2 | Progress of the key materials for organic solar cells显示文摘Organic solar cells have attracted academic and industrial interests due to the advantages like lightweight,flexibility and roll-to-roll fabrication.Nowadays,18%power conversion efficiency has been achieved in the state-of-the-art organic solar cells.The recent rapid progress in organic solar cells relies on the continuously emerging new materials and device fabrication technologies,and the deep understanding on film morphology,molecular packing and device physics.Donor and acceptor materials are the key materials for organic solar cells since they determine the device performance.The past 25 years have witnessed an odyssey in developing high-performance donors and acceptors.In this review,we focus on those star materials and milestone work,and introduce the molecular structure evolution of key materials.These key materials include homopolymer donors,D-A copolymer donors,A-D-A small molecular donors,fullerene acceptors and nonfullerene acceptors.At last,we outlook the challenges and very important directions in key materials development. | Yang Tong Zuo Xiao Xiaoyan Du Chuantian Zuo Yuelong Li Menglan Lv Yongbo Yuan Chenyi Yi Feng Hao Yong Hua Ting Lei Qianqian Lin Kuan Sun Dewei Zhao Chunhui Duan Xiangfeng Shao Wei Li Hin-Lap Yip Zhengguo Xiaol Bin Zhang Qingzhen Bian Yuanhang Cheng Shengjian Liu Ming Cheng Zhiwen Jin Shangfeng Yang Liming Ding | 2020 | Science China Chemistry2020，63，6： | 15 |
| 3 | Alkali metal salts doped pluronic block polymers as electron injection/transport layers for high performance polymer light-emitting diodes显示文摘A series of alkali metal salts doped pluronic block copolymer F127 were used as electron injection/transport layers (ETLs) for polymer light-emitting diodes with poly[2-(4-(3′,7′-dimethyloctyloxy)-phenyl)-p-phenylenevinylene] (P-PPV) as the emission layer. It was found that the electron transport capability of F127 can be effectively enhanced by doping with alkali metal salts. By using Li2CO3 (15%) doped F127 as ETL, the resulting device exhibited improved performance with a maximum luminous efficiency (LE) of 13.59 cd/A and a maximum brightness of 5529 cd/m2, while the device with undoped F127 as ETL only showed a maximum LE of 8.78 cd/A and a maximum brightness of 2952 cd/m2. The effects of the doping concentration, cations and anions of the alkali metal salts on the performance of the resulting devices were investigated. It was found that most of the alkali metal salt dopants can dramatically enhance the electron transport capability of F127 ETL and the performance of the resulting devices was greatly improved. | ZHANG Kai LIU ShengJian GUAN Xing DUAN ChunHui ZHANG Jie ZHONG ChengMei WANG Lei HUANG Fei CAO Yong | 2012 | Science China Chemistry2012，55，5： | 5 |
| 4 | The effect of different layered materials on the tribological properties of PTFE composites显示文摘Two-dimensional(2D)lamellar materials have unique molecular structures and mechanical properties,among which molybdenum disulfide(MoS2)and graphitic carbon nitride(g-C3N4)with different interaction forces served as reinforcing phase for polytetrafluoroethylene(PTFE)composites in the present study.Thermal stability,tribological and thermomechanical properties of composites were comprehensively investigated.It was demonstrated that g-C3N4 improved elastic deformation resistance and thermal degradation characteristics.The addition of g-C3N4 significantly enhanced anti-wear performance under different loads and speeds.The results indicated that PTFE composites reinforced by g-C3N4 were provided with better properties because the bonding strength of g-C3N4 derived from hydrogen bonds(H-bonds)was stronger than that of MoS2 with van der Waals force.Consequently,g-C3N4 exhibited better thermomechanical and tribological properties.The result of this work is expected to provide a new kind of functional filler for enhancing the tribological properties of polymer composites. | Song LI Chunjian DUAN Xiao LI Mingchao SHAO Chunhui QU Di ZHANG Qihua WANG Tingmei WANG Xinrui ZHANG | 2020 | Friction2020，8，3： | 5 |
| 5 | Two-dimensional like conjugated copolymers for high efficiency bulk-heterojunction solar cell application:Band gap and energy level engineering显示文摘Three two-dimensional like conjugated copolymers PFSDCN,PFSDTA and PFSDCNIO,which consist of alternating fluorene and triphenylamine main chain,and different pendant acceptor groups (malononitrile,1,3-diethtyl-2-thiobarbituric acid and 2-(1,2-dihydro-1-oxoinden-3-ylidene)malononitrile) with thiophene as π-bridge,have been designed,synthesized and characterized.The structure-property relationships of the two-dimensional like conjugated copolymers were systematically investigated.The absorption spectra,band gaps,and energy levels of the polymers were effectively tuned by simply attaching different acceptor groups.As the electron-withdrawing ability of the acceptors increased,the band gaps of the polymers were narrowed from 2.05 to 1.61 eV;meanwhile,the LUMO energy levels of the polymers decreased from -3.27 to -3.75 eV,whereas their relatively deep HOMO energy levels of ~-5.35 eV were preserved.BHJ solar cells were fabricated and characterized by using the three polymers as donor materials and the highest power conversion efficiency of 2.87% was achieved for the device based on PFSDTA:(6,6)-phenyl-C71-butyric acid methyl ester blend. | DUAN ChunHui WANG ChuanDao LIU ShengJian HUANG Fei CHOY C.H.Wallace CAO Yong | 2011 | Science China Chemistry2011，54，4： | 5 |
| 6 | A novel crosslinkable electron injection/transporting material for solution processed polymer light-emitting diodes显示文摘A novel crosslinkable water/alcohol soluble conjugated polymer PFN-C containing oxetane groups and aminoalkyl groups in the side chains has been developed and used as highly efficient electron injection and transporting material for polymer light-emitting diodes (PLEDs). The unique solubility in polar solvents and crosslinkable ability of PFN-C render it a good can- didate for solution processed multilayer PLEDs. It was found that PFN-C can greatly enhance the electron injection from high work-function metal cathode, due to its pendant amino groups. As a result, PLEDs with PFN-C/Al cathode exhibited compara- ble device performance to the devices with Ba/Al cathode. The resulting green light-emitting device showed promising perfor- mance with a maximum luminance efficiency of 13.53 cd A-1. | LIU ShengJian ZHONG ChengMei ZHANG Jie DUAN ChunHui WANG XiaoHui HUANG Fei | 2011 | Science China Chemistry2011，54，11： | 4 |
| 7 | Electrical and spin switches in single-molecule junctions显示文摘Single-molecule electrical and spin switches have been one of the main research focuses in molecular electronics and spintronics because they may form the most important elements for the future information technology,thus attracting great attention in the scientific community and witnessing significant progresses benefiting from the combination of physics,chemistry,materials,and engineering.The key issue of constructing single-molecule switches is the development of stimulus-responsive systems that provide bistable or multiple states.In this review,we summarize the recent advances of this field in terms of the external stimulus that induces the switching.A variety of external stimuli,such as light,electric field,magnetic field,mechanical force,and chemical stimulus,have been successfully employed to activate the reversible switching in single-molecule junctions by manipulating molecular structures,conformations,electronic states,and spin states.As a burgeoning field,we finally put forward the challenges in molecular electronics and spintronics that need to be solved,which will initiate intense research. | Guojun Ke Chunhui Duan Fei Huang Xuefeng Guo | 2020 | InfoMat2020，2，1： | 3 |
| 8 | Deep-blue organic light-emitting diodes based on a doublet d-f transition cerium(Ⅲ) complex with 100% exciton utilization efficiency显示文摘Compared to red and green organic light-emitting diodes(OLEDs),blue OLEDs are still the bottleneck due to the lack of efficient emitters with simultaneous high exciton utilization efficiency(EUE)and short excited-state lifetime.Different from the fluorescence,phosphorescence,thermally activated delayed fluorescence(TADF),and organic radical materials traditionally used in OLEDs,we demonstrate herein a new type of emitter,cerium(Ⅲ)complex Ce-1 with spin-allowed and parity-allowed d-f transition of the centre Ce^(3+) ion.The compound exhibits a high EUE up to 100% in OLEDs and a short excited-state lifetime of 42 ns,which is considerably faster than that achieved in efficient phosphorescence and TADF emitters.The optimized OLEDs show an average maximum external quantum efficiency(EQE)of 12.4% and Commission Internationale de L’Eclairage(CIE)coordinates of(0.146,0.078). | Liding Wang Zifeng Zhao Ge Zhan Huayi Fang Hannan Yang Tianyu Huang Yuewei Zhang Nan Jiang Lian Duan Zhiwei Liu Zuqiang Bian Zhenghong Lu Chunhui Huang | 2020 | Light(Science & Applications)2020，9，1： | 3 |
| 9 | 15.4% Efficiency all-polymer solar cells显示文摘We report all-polymer solar cells(All-PSCs) with record-high power conversion efficiency(PCE) through tuning the molecular weights of the polymer donor(PBDB-T) to form optimal active layer morphology. By combining the polymer donors with a newly reported polymer acceptor(PJ1), an unprecedented high PCE of 15.4% and fill factor over 75% were achieved for the AllPSCs with the medium molecular weight polymer donor(PBDB-TMW), which is the highest value for All-PSCs reported so far.Detailed morphology investigation revealed that the proper phase separation in the PBDB-TMW:PJ1 blend should account for the superior device performance as PBDB-TMW exhibits appropriate miscibility with the polymer acceptor PJ1. These results demonstrated that the device performance of All-PSCs could be fully comparable to that of small molecular acceptor-based PSCs. The formation of optimized morphology via precise control of molecular weights of polymer donors and acceptors is crucial to achieve this goal. | Long Zhang Tao Jia Langheng Pan Baoqi Wu Zaiyu Wang Ke Gao Feng Liu Chunhui Duan Fei Huang Yong Cao | 2021 | Science China Chemistry2021，64，3： | 2 |
| 10 | Recent development of push-pull conjugated polymers for bulk-heterojunction photovoltaics: Rational design and fine tailoring of molecular structures 显示文摘 | Duan Chunhui Huang Fei Cao Yong | 2012 | J Mater Chem2012，22，10： | 1 |
| 11 | Low-bandgap conjugated polymers based on benzodipyrrolidone with reliable unipolar electron mobility exceeding 1 cm^(2) V^(-1)s^(-1)显示文摘The employment of an intrinsic quinoidal building block,benzodipyrrolidone(BDP),on constructing conjugated polymers(PBDP-2F and PBDP-2CN)with high electron mobility and unipolar transport characteristic in polyethylenimine ethoxylated(PEIE)modified organic field-effect transistors(OFETs)is reported.The intrinsic quinoidal characteristic and excellent coplanarity of BDP can lower the lowest unoccupied molecular orbital(LUMO)levels and improve ordered interchain packing of the resulting polymers in solid states,which are favorable for electron-injection and transport.By using PEIE as the interlayer to block the hole injection,unipolar n-type transport characteristics with high electron mobility of 0.58 and 1.01 cm^(2) V^(-1)s^(-1)were achieved by the OFETs based on PBDP-2F and PBDP-2CN,respectively.More importantly,the extracted mobilities are highly reliable with the reliability factor of above 80%.To the best of our knowledge,PBDP-2CN is the very first quinoid-based conjugated polymer with reliable electron mobility exceeding 1 cm^(2) V^(-1)s^(-1).This work represents a significant step in exploring intrinsic quinoidal CPs for application in n-channel OFETs and logic complementary circuits. | Mingqun Yang Tian Du Xuxia Zhao Xuelong Huang Langheng Pan Shuting Pang Haoran Tang Zhongxiang Peng Long Ye Yunfeng Deng Mingliang Sun Chunhui Duan Fei Huang Yong Cao | 2021 | Science China Chemistry2021，64，7： | 1 |
| 12 | Recent develop ment of push pull conjugated polymers for bulk hetero- junction photovoltaics: rational design and fine tailoring of molecular structures 显示文摘 | Duan Chunhui Huang Fei Cao Yong | 2012 | Journal of Mater rials Chemistry2012，22，10： | 1 |
| 13 | Synthe- sis, characterization, and photovoltaic properties of carbazo- le-based two-dimensional conjugated polymers with donor-re- bridge-acceptor side chains显示文摘 | Duan Chunhui Chen Kung Shih Huang Fei | 2010 | Chem Mater2010，22，： | 1 |
| 14 | The effect of end-capping groups in A-D-A type non-fullerene acceptors on device performance of organic solar cells显示文摘A series of novel wide bandgap small molecules(IFT-ECA, IFT-M, IFT-TH and IFT-IC) based on the A-D-A structure with indenofluorene core, thiophene bridge, and different electron-deficient end-capping groups, were synthesized and used as non-fullerene acceptors in organic solar cells. The influences of end-capping groups on the device performance were studied.The four materials exhibited different physical and chemical properties due to the variation of end-capping groups, which further affect the exciton dissociation, charge transport, morphology of the bulk-heterojunction films and device performance. Among them, IFT-IC-based device delivered the best power conversion efficiency of 7.16% due to proper nano-scale phase separation morphology and high electron mobility, while the devices based on the other acceptors achieved lower device performance(4.14% for IFT-TH, <1% for IFT-ECA and IFT-M). Our results indicate the importance of choosing suitable electron-withdrawing groups to construct high-performance non-fullerene acceptors based on A-D-A motif. | Jianchao Jia Nannan Zheng Zhenfeng Wang Yunping Huang Chunhui Duan Fei Huang Yong Cao | 2017 | Science China Chemistry2017，60，11： | 1 |
| 15 | All-polymer solar cells显示文摘Organic solar cells(OSCs)show a promising commercialization prospect with their power conversion efficiencies(PCEs)exceeding 18%[1−6].Among various types of OSCs,all-polymer solar cells(all-PSCs)with a physical blend of p-and n-type polymer as the active layer to harvest solar irradiation attract growing attention due to their unique advantages like excellent morphological stability,and mechanical durability[7]. | Baoqi Wu Bingyan Yin Chunhui Duan Liming Ding | 2021 | Journal of Semiconductors2021，42，8： | 1 |
| 16 | Materials and devices toward fully solution processable organic light-emitting diodes显示文摘 | Zhong Chengmei Duan Chunhui Huang Fei | 2011 | Chemistry of Materials2011，23，3： | 1 |
| 17 | Synthesis and optoelectronic properties of amino-functionalized carbazole-based conjugated polymers显示文摘A series of alcohol soluble amino-functionalized carbazole-based copolymers were synthesized via Suzuki coupling reaction.The pendent amino groups endow them high solubility in polar solvents,as well as efficient electron injection capability from high work-function metals.The relationships between the photophysical and electrochemical properties and the polymer backbone structure were systematically investigated.These alcohol-soluble carbazole-based copolymers were used as cathode interlayers between the high work-function metal Al cathode and P-PPV emissive layer in polymer light-emitting diodes with device structure of ITO/PEDOT:PSS/P-PPV/interlayer/Al.The resulting devices exhibited improved performance due to the better electron injection/transporting ability of the designed copolymers from Al cathode to the light-emitting layer. | LIU ShengJian ZHANG ZhiPeng CHEN DongCheng DUAN ChunHui LU JunMing ZHANG Jie HUANG Fei SU ShiJian CHEN JunWu CAO Yong | 2013 | Science China Chemistry2013，56，8： | 1 |
| 18 | Investigation of the feasibility of NRAV as a biomarker for hepatocellular carcinoma显示文摘The long non-coding RNA,Negative Regulator of Antiviral Response(NRAV)has been identified as a participant in both respiratory virus replication and immune checkpoints,however,its involvement in pan-cancer immune regulation and prognosis,particularly those of hepatocellular carcinoma(HCC),remains unclear.To address this knowledge gap,we analyzed expression profiles obtained from The Cancer Genome Atlas(TCGA)database,comparing normal and malignant tumor tissues.We found that NRAV expression is significantly upregulated in tumor tissues compared to adjacent nontumor tissues.Kaplan-Meier(K-M)analysis revealed the prognostic power of NRAV,wherein overexpression was significantly linked to reduced overall survival in a diverse range of tumor patients.Furthermore,noteworthy associations were observed between NRAV,immune checkpoints,immune cell infiltration,genes related to autophagy,epithelial-mesenchymal transition(EMT),pyroptosis,tumor mutational burden(TMB),and microsatellite instability(MSI)across different cancer types,including HCC.Moreover,NRAV upregulation expression was associated with multiple pathological stages by clinical observations.Furthermore,our investigation revealed a substantial elevation in the expression of NRAV in both HCC tumor tissues and cells compared to normal tissues and cells.The inhibition of NRAV resulted in the inhibition of cell proliferation,migration,and invasion in HCC cells,while also influencing the expression of CD274(PD-L1)and CD44,along with various biomarkers associated with EMT,autophagy,and pyroptosis.The aforementioned results propose NRAV as a promising prognostic biomarker for HCC. | JUN LIU WENLI LI RUYUE LU JIAQING XU CHUNHUI JIANG JUNLIN DUAN LINGZHI ZHANG GUANFU WANG JIAXI CHEN | 2024 | Oncology Research2024，32，4： | 0 |
| 19 | Design, synthesis and photovoltaic properties of a series of new acceptor-pended conjugated polymers显示文摘A series of novel acceptor-pended conjugated polymers featuring a newly developed carbazole-derived unit are designed and synthesized. The relationships between chemical structure and optoelectronic properties of the polymers are systematically investigated.The control of UV-Vis absorption spectra and energy levels in resulting polymers are achieved by introducing suitable pended acceptor units. The photovoltaic properties of the resulting polymers are evaluated by blending the polymers with(6,6)-phenyl-C71-butyric acid methyl ester. The resulting solar cells exhibit moderate performances with high open-circuit voltage. Charge transport properties and morphology were investigated to understand the performance of corresponding solar cells. | Zhihong Wu Yongxiang Zhu Wei Li Yunping Huang Junwu Chen Chunhui Duan Fei Huang Yong Cao | 2016 | Science China Chemistry2016，59，12： | 0 |
| 20 | Discovery and theoretical and technical innovations of Yuanba gas field in Sichuan Basin, SW China显示文摘To solve the difficulties in exploration and development in Yuanba ultra-deep gas field in Sichuan Basin,SW China,the article studies the mechanism of quality reef reservoirs development and gas accumulation and innovates techniques in ultra-deep seismic exploration,drilling,completion and testing.Through the reconstruction of dynamic depositional evolution process and regional depositional framework of homoclinal ramp-rimmed platform in Upper Permian,three theories are put forward:first,'early beach-late reef,multiple stacking,arrangement in rows and belts'is the sedimentary mode for the reservoirs in the Changxing Formation of Yuanba area;second,'dissolution in early exposure stage and dolomitization during shallow burial giving rise to the pores in matrix,overpressure caused by cracking of liquid hydrocarbon during deep burial inducing fractures'is the reservoirs development mechanisms;third,'coupling of pores and fractures'controls the development of high quality reservoirs in deep formations.From correlation of oil and source rock,it is concluded that the Wujiaping Formation and Dalong Formation of deep-water continental shelf are the major source rocks in the Permian of northern Sichuan Basin.The hydrocarbon accumulation mode in ultra-deep formations of low-deformation zones is characterized by'three-micro(micro-fault,micro-fracture interbed crack)migration,near-source enrichment,and persistent preservation'.Through seismic inversion using the pore structure parameters of pore-fracture diadactic structure model,the high production gas enrichment area in Yuanba gas field is 98.5 km^2.Moreover,special well structure and unconventional well structure were used to deal with multiple pressure systems and sealing of complex formations.A kind of integral,high pressure resistant FF-level gas wellhead and ground safety linkage device was developed to accomplish safe and environmentally friendly gas production. | GUO Xusheng HU Dongfeng LI Yuping DUAN Jinbao JI Chunhui DUAN Hua | 2018 | Petroleum Exploration and Development2018，45，1： | 0 |
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