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| 1 | Mechanism of lead immobilization by oxalic acid-activated phosphate rocks显示文摘Lead (Pb) chemical fixation is an important environmental aspect for human health. Phosphate rocks (PRs) were utilized as an adsorbent to remove Pb from aqueous solution. Raw PRs and oxalic acid-activated PRs (APRs) were used to investigate the effect of chemical modification on the Pb-binding capacity in the pH range 2.0-5.0. The Pb adsorption rate of all treatments above pH 3.0 reached 90%. The Pb binding on PRs and APRs was pH-independent, except at pH 2.0 in activated treatments. The X-ray diffraction analysis confirmed that the raw PRs formed cerussite after reacting with the Pb solution, whereas the APRs formed pyromorphite. The Fourier Transform Infrared spectroscopy analysis indicated that carbonate (CO32-) in raw PRs and phosphate (PO43-) groups in APRs played an important role in the Pb-binding process. After adsorption, anomalous block-shaped particles were observed by scanning electron microscopy with energy dispersive spectroscopy. The X-ray photoelectron spectroscopy data further indicated that both chemical and physical reactions occurred during the adsorption process according to the binding energy. Because of lower solubility of pyromorphite compared to cerussite, the APRs are more effective in immobilizing Pb than that of PRs. | Guanjie Jiang Yonghong Liu Li Huang Qingling Fu Youjun Deng Hongqing Hu | 2012 | Journal of Environmental Sciences2012，24，5： | 12 |
| 2 | Regulation of Actin Dynamics in Pollen Tubes:Control of Actin Polymer Level显示文摘Actin cytoskeleton undergoes rapid reorganization in response to internal and external cues. How the dynamics of actin cytoskeleton are regulated, and how its dynamics relate to its function are fundamental questions in plant cell biology. The pollen tube is a well characterized actin-based cell morphogenesis in plants. One of the striking features of actin cytoskeleton characterized in the pollen tube is its surprisingly low level of actin polymer. This special phenomenon might relate to the function of actin cytoskeleton in pollen tubes. Understanding the molecular mechanism underlying this special phenomenon requires careful analysis of actin-binding proteins that modulate actin dynamics directly. Recent biochemical and biophysical analyses of several highly conserved plant actin-binding proteins reveal unusual and un- expected properties, which emphasizes the importance of carefully analyzing their action mechanism and cellular activity. In this review, we highlight an actin monomer sequestering protein, a barbed end capping protein and an F-actin severing and dynamizing protein in plant. We propose that these proteins function in harmony to regulate actin dynamics and maintain the low level of actin polymer in pollen tubes. | Naizhi Chen Xiaolu Qu Youjun Wu Shanjin Huang | 2009 | Journal of Integrative Plant Biology2009，51，8： | 9 |
| 3 | Comparison of QTLs for rice seedling morphology under different water supply conditions显示文摘The variation of seedling characteristics under different water supply conditions is strongly associated with drought resistance in rice (Oryza sativa L.) and a better elucidation of its genetics is helpful for improving rice drought resistance. Ninety-six doubled-haploid (DH) rice lines of an indica and japonica cross were grown in both flooding and upland conditions and QTLs for morphological traits at seedling stage were examined using 208 restriction fragment length polymorphism (RFLP) and 76 microsatellite (SSR) markers. A total of 32 putative QTLs were associated with the four seedling traits: average of three adventitious root lengths (ARL), shoot height (SH), shoot biomass (SW), and root to shoot dry weight ratio (RSR). Five QTLs detected were the same under control and upland conditions. The ratio between the mean value of the seedling trait under upland and flooding conditions was used for assessing drought tolerance. A total of six QTLs for drought tolerance were detected. Comparative analysis was performed for the QTLs detected in this case and those reported from two other populations with the same upland rice variety Azucena as parent. Several identical QTLs for seedling elongation across the three populations with the positive alleles from the upland rice Azucena were detected, which suggests that the alleles of Azucena might be involved in water stress-accelerated elongation of rice under different genetic backgrounds. Five cell wall-related candidate genes for OsEXP1, OsEXP2, OsEXP4, EXT, and EGase were mapped on the intervals carrying the QTLs for seedling traits. | Bingsong Zheng Ling Yang Chuanzao Mao Youjun Huang Ping Wu | 2008 | Journal of Genetics and Genomics2008，35，8： | 7 |
| 4 | Profilin Regulates Apical Actin Polymerization to Control Polarized Pollen Tube Growth显示文摘花粉试管生长在 flowering 植物复制期间是必要的步,其生长取决于动态顶端的肌动朊细丝的一张人口。顶端的肌动朊细丝被认为涉及泡熔化的规定并且在花粉试管指向。然而,在花粉试管调整顶端的肌动朊结构的构造的分子的机制仍然保持大部分不清楚。这里,我们在花粉试管在顶端的膜在肌动朊聚合的规定作为一个重要播放器识别 profilin。profilin 的 Downregulation 减少了在花粉试管的细丝状的肌动朊的数量和顶端的肌动朊细丝的导致的组织的破坏。肌动朊动力学的直接可视化表明在顶端的膜发源的肌动朊细丝的延伸在 profilin 异种花粉试管减少了。仅仅在有约束力的 poly-L-proline 是有缺点的变异的 profilin 部分在 profilin 异种花粉试管救肌动朊聚合缺点,尽管它充分救肌动朊周转显型。我们建议 profilin 在花粉试管尖端控制肌动朊结构的构造,大概由在顶端的膜赞成调停 formin 的肌动朊聚合。 | Xiaonan Liu Xiaolu Qu Yuxiang Jiang Ming Chang Ruihui Zhang Youjun Wu Ying Fu Shanjin Huang | 2015 | Molecular Plant2015，8，12： | 6 |
| 5 | A NEW IMPROVED STRUCTURE OF DYE-SENSITIZED SOLAR CELLS WITH REFLECTION FILM显示文摘A new improved structure of dye- sensi- tized nanocrystalline solar cells (DSSC) for utilizing reflected light was introduced in this paper. Typical DSSC is based on a sandwich structure, which con- sists of photoanode, electrolyte and cathode. For the improved structure of DSSC in this paper, a sliver reflection film was attached to the back of transparent conducting glass of cathode. In this way, the residual light passing through photoanode was reflected to it to be used again. The photocurrent-voltage charac- teristics of DSSC fabricated by two different thickness of TiO2 film were measured to illustrate the effects of utilizing reflected light. As a result, the improved DSSC with reflection film exhibited higher photocur- rent and solar-to-electric conversion efficiency than DSSC without reflection film. | LIU Yong SHEN Hui HUANG Xiaorui DENG Youjun | 2006 | Chinese Science Bulletin2006，51，3： | 4 |
| 6 | Extremely low penetrance of deafness associated with the mitochondrial 12S rRNA mutation in 16 Chinese families: Implication for early detection and prevention of deafness显示文摘 | Pu Dai Xin Liu Dongyi Han Yaping Qian Deliang Huang Huijun Yuan Weiming Li Fei Yu Ruining Zhang Hongyan Lin Yong He Youjun Yu Quanzhu Sun Huaiyi Qin Ronghua Li Xin Zhang Dongyang Kang Juyang Cao Wie-Yen Young Min-Xin Guan | 2005 | Biochemical and Biophysical Research Communications2005，，1： | 2 |
| 7 | Aurora B kinase activation requires survivin priming phosphorylation by PLK1显示文摘During cell division,chromosome segregation is orchestrated by the interaction of spindle microtubules with the centromere.Accurate attachment of spindle microtubules to kinetochore requires the chromosomal passenger of Aurora B kinase complex with borealin,INCENP and survivin(SUR).The current working model argues that SUR is responsible for docking Aurora B to the centromere whereas its precise role in Aurora B activation has been unclear.Here,we show that Aurora B kinase activation requires SUR priming phosphorylation at Ser20 which is catalyzed by polo-like kinase 1(PLK1).Inhibition of PLK1 kinase activity or expression of non-phosphorylatable SUR mutant prevents Aurora B activation and correct spindle microtubule attachment.The PLK1-mediated regulation of Aurora B kinase activity was examined in real-time mitosis using fluorescence resonance energy transfer-based reporter and quantitative analysis of native Aurora B substrate phosphorylation.We reason that the PLK1-mediated priming phosphorylation is critical for orchestrating Aurora B activity in centromere which is essential for accurate chromosome segregation and faithful completion of cytokinesis. | Youjun Chu Phil Y.Yao Wenwen Wang Dongmei Wang Zhikai Wang Liangyu Zhang Yuejia Huang Yuwen Ke Xia Ding Xuebiao Yao | 2011 | Journal of Molecular Cell Biology2011，3，4： | 2 |
| 8 | Stretchable polymer composites with ultrahigh piezoelectric performance显示文摘Flexible piezoelectric materials capable of withstanding large deformation play key roles in flexible electronics.Ferroelectric ceramics with a high piezoelectric coefficient are inherently brittle,whereas polar polymers exhibit a low piezoelectric coefficient.Here we report a highly stretchable/compressible piezoelectric composite composed of ferroelectric ceramic skeleton,elastomer matrix and relaxor ferroelectric-based hybrid at the ceramic/matrix interface as dielectric transition layers,exhibiting a giant piezoelectric coefficient of 250 picometers per volt,high electromechanical coupling factor keff of 65%,ultralow acoustic impedance of 3MRyl and high cyclic stability under 50%compression strain.The superior flexibility and piezoelectric properties are attributed to the electric polarization and mechanical load transfer paths formed by the ceramic skeleton,and dielectric mismatch mitigation between ceramic fillers and elastomer matrix by the dielectric transition layer.The synergistic fusion of ultrahigh piezoelectric properties and superior flexibility in these polymer composites is expected to drive emerging applications in flexible smart electronics. | Tongxiang Tang Zhonghui Shen Jian Wang Shiqi Xu Jiaxi Jiang Jiahui Chang Mengfan Guo Youjun Fan Yao Xiao Zhihao Dong Houbing Huang Xiaoyan Li Yihui Zhang Danyang Wang Long-Qing Chen Ke Wang Shujun Zhang Ce-Wen Nan Yang Shen | 2023 | National Science Review2023，10，8： | 1 |
| 9 | Onset of slugging fluidization in supercritical water fluidized bed显示文摘The supercritical-water fluidized bed(SCWFB)is a reactor for coal and biomass gasification without pollutant emission.We carried out a series of experiments in a SCWFB,and a dual-capacitance probe measurement system was applied to measure the hydrodynamics of slugs,such as the slug frequency,chord length,and rising velocity.Four groups of Geldart-B particles with different mean diameters were fluidized by supercritical water with a system pressure of 20-27MPa and at 410-570℃.The minimum slugging Reynolds number increases logarithmically with Archimedes number and a predicting correlation of the minimum slugging fluidization velocity in the SCWFB is presented:Rems=32908.84 ln(Ar^0.55+260376.65)-410361.90.The relative error of the above correlation was within ±15% and the averaged relative error was 7.5%.The effect of operating conditions on the minimum slugging fluidization velocity is discussed.This research provides useful guidance for scaling-up design and for determining the optimum range of operating conditions in the SCWFB. | Hao Wang Jikai Huang Youjun Lu | 2020 | Particuology2020，18，5： | 1 |
| 10 | High-temperature phase relations of ZrN–ZrO_2–Y_2O_3 ternary system显示文摘Zirconium nitride(ZrN) ceramics were prepared via hot pressed sintering(HP) at 1750 ℃ in N_2 atmosphere with ZrO_2–Y_2O_3 as sintering additive. X-ray diffraction was applied to analyze the phase composition of the as-prepared ceramics to study the high temperature phase relation in ZrN –ZrO_2–Y_2O_3 ternary system and establish ZrN –ZrO_2–Y_2O_3 ternary phase diagrams. The results show that ZrN and tetragonal ZrO_2(t-ZrO_2) solid solution, face-centered cubic ZrO_2(c-ZrO_2) solid solution, body-centered cubic Y_2O_3(c-Y_2O_3) solid solution coexist in the system of ZrN –ZrO_2–Y_2O_3. | Youjun LU Zhenxia YUAN Hongfang SHEN Xiaochen HUAI Zhenkun HUANG | 2018 | Journal of Advanced Ceramics2018，7，4： | 1 |
| 11 | A Monochromophoric Approach to Succinct Ratiometric Fluorescent Probes without Probe-Product Crosstalk显示文摘Ratiometric probes facilitate quantitative studies via self-calibration and are cherished for bioimaging.Often,a small probe-product spectral separation leads to crosstalk,but the rational development of ratiometric probes with zero probe-product crosstalk remains challenging.Harnessing the recent progress on photophysical modulation of xanthenoid fluorochromes,we propose a powerful and versatile probe design principle,that is,“bridging-group modification,”and developed totalROX,a robust probe for monitoring the total cellular oxidative capacity. | Kai Xin Xinxing Li Yinghua Guo Youhuan Zhong Jungang Wang Haotian Yang Jie Zhao Chunlei Guo Yunxia Huang Zuhai Lei Yi-Lun Ying Xiao Luo Haolu Wang Xuhong Qian Wen Yang Xiaowen Liang Youjun Yang | 2021 | CCS Chemistry2021，3，8： | 0 |
| 12 | A review of multiscale expansion of low permeability reservoir cracks显示文摘The study of rock crack propagation by multi-scale method is of great significance to comprehensively and accurately understand the law of rock crack evolution.In this paper,the theoretical,experimental and numerical methods from macroscale,mesoscale and microscale used for crack propagation in recent years are summarized and analyzed.Firstly,the evolution mechanism of the crack and the related research status are analyzed from a single scale.Secondly,multi-scale theory,modeling,meshing algorithm and macro-mesoscopic parameters are reviewed in the multi-scale coupling method.Through the analysis of the results published in recent years,it is considered that the following aspects need to be further studied:the characteristic parameters of the rock are different at different scales,so the extraction of the characteristic parameters under different scales is essential to modeling and coupling;the heterogeneity of rock and the prefabrication of cracks are greatly affected by human factors,so that 3D printing will be a good breakthrough to build the model of crack owing to its accurate control on the distribution and the size of cracks.The internal stress field of the rock is complex and varied,and the generation and expansion of the microcracks in the process of crack propagation are closely related to the surrounding environment.Therefore,it is of great importance to combine theoretical,experimental and numerical research with practical engineering. | Liuke Huang Jianjun Liu Youjun Ji Xiaoping Gong Liangkai Qin | 2018 | Petroleum2018，4，2： | 0 |
| 13 | 幸福生活“淌”出来显示文摘The word chabka in Tibetan refers to the source of a spring.Chabka Village of Shetongmon County,therefore,has six sizable hot springs with an average temperature of 63℃(145°F)and various minerals(copper,zinc,etc.). | Wang Li Li Youjun Lhagpa Drolma Huang Wenjuan(Translated) | 2022 | China's Tibet2022，33，1： | 0 |
| 14 | Dietary supplementation with pyrroloquinoline quinone promotes growth,relieves weaning stress,and regulates metabolism of piglets compared with adding zinc oxide显示文摘Hindered growth often occurs because of psychological and environmental stress during the weaning period of piglets.This study aimed to compare the effects of growth performance,diarrhea indices,digestibility of nutrients,antioxidant capacity,neurotransmitters levels and metabolism of weaned pigs fed diets supplemented with pyrroloquinoline quinone(PQQ)and zinc oxide(ZnO).Pigs weaned at d 28(n=108)were fed with three different diets including:the basal diet(CTRL group),the basal diet supplemented with 3.0 mg/kg PQQ(PQQ group)and the basal diet containing 1,600 mg/kg ZnO(ZNO group).During the first 14 d,weaned pigs fed the diet supplemented with PQQ and ZnO decreased feed to gain ratio and diarrhea rate(P<0.01).Compared with the CTRL group,average daily gain was increased in weaned pigs in the PQQ group from d 15 to 28(P=0.03).Compared with the CTRL group,pigs fed PQQ and ZnO supplemented diets showed improved apparent total tract digestibility(ATTD)of nutrients(P≤0.05).During the overall experimental period,the concentration of malondialdehyde was decreased in plasma of pigs in the PQQ and ZNO groups compared with the CTRL group(P<0.05).At d 28,the concentration of vasoactive intestinal peptide(VIP)and calcitonin gene-related peptide(CGRP)was lower in plasma of weaned pigs in the PQQ and ZNO groups compared with the CTRL group(P<0.05).There was no difference between the PQQ and ZNO group in growth performance,ATTD of nutrition,antioxidant capacity and neurotransmitters levels.PQQ increased 3-methoxy-4-hydroxymandelate(P<0.05)compared with the CTRL group.According to metabolomic analysis,erucamide,formononetin and 3-methyl-L-histidine were up-regulated in the PQQ group(P<0.05).Compared with the CTRL group,aloesin and dibutyl adipate were down-regulated in the PQQ group(P<0.05).In conclusion,similar to ZnO,PQQ improves growth performance,digestibility of nutrients,antioxidant capacity,neuromodulation and metabolism of weaned pigs.Thus,like ZnO,PQQ can be effectively applied in weaned pigs. | Chenyu Shi Zirou Yu Zijie Wang Ran Ning Caiyun Huang Youjun Gao Fenglai Wang | 2023 | Animal Nutrition2023，，4： | 0 |
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