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| 1 | Crystalline behaviors and phase transition during the manufacture of fine denier PA6 fibers显示文摘Recently we have successfully produced fine denier PA6 fibers by using additives containing lanthanide compounds.Meanwhile,crystallization and phase transition of PA6 fibers during spinning and drawing processes were investigated.During the spinning process,β phase crystal could be obtained in as-spun PA6 fibers which were produced with relatively high melt draw ratio,while γ phase crystal predominated when the melt draw ratio was relatively low.β phase crystal,whose behaviors are similar with those of γ phase by FT-IR and XRD characterization,could be transformed to α form easily when PA6 fibers are immersed in boiling water.However,γ phase crystal of PA6 remains unchanged in boiling water.Thus,β and γ phase crystals of PA6 can be differentiated by the crystalline behaviors of PA6 fibers after treatment in boiling water.Further experiments demonstrate that the β phase can also be produced during a drawing process where a phase transformation from γ to α occurs.In other words,β phase may act as an intermediate state during the phase transformation. | ZHANG ChengFeng LIU YuHai LIU ShaoXuan LI HuiZhen HUANG Kun PAN QingHua HUA XiaoHui HAO ChaoWei MA QingFang LV ChangYou LI WeiHong YANG ZhanLan ZHAO Ying WANG DuJin LAI GuoQiao JIANG JianXiong XU YiZhuang WU JinGuang | 2009 | Science China Chemistry2009，52，11： | 4 |
| 2 | Fabrication of superstable gold nanorod-carbon nanocapsule as a molecule loading material显示文摘In this work, we fabricated a monodisperse nanocomposite by coating gold nanorods(Au NRs) with a layer of biocompatible, stable carbon, obtaining Au NR@Carbon core–shell nanocapsules, which without any functionalization could be used as a molecule loading material due to its high surface areas. In this system, the Au NR core had a high-absorption cross section for conversion of near-infrared light to heat, which could be explored for local hyperthermia. The carbon shell, which was biocompatible and stable even under concentrated acidic and alkaline conditions, was able to adsorb molecules with p–p interactions or electrostatic interactions. In comparison with Au NR@Si O2, Au NR@Carbon nanocapsules demonstrate the following merits:(1) simple and green synthesis method,(2) far more stable with respect to high-temperature stability and(3) larger molecule loading capacity,which indicate great potential in the biomedical applications. | Wei Gao Xuewei Wang Huanhuan Fan Zhiling Song Xiaofang Lai Zhuo Chen Weihong Tan | 2015 | Science Bulletin2015，60，12： | 3 |
| 3 | Stable and unique graphitic Raman internal standard nanocapsules for surface-enhanced Raman spectroscopy quantitative analysis显示文摘Graphitic nanomaterials 有的独特、强壮、稳定的拉曼颤动广泛地在化学和 biomedicine 被使用了。然而,作为内部标准(ISs ) 利用他们改进提高表面的拉曼的精确性光谱学(重量的单位) 分析没被尝试。此处,我们报导设计一唯一是由很多金牌组成的 nanostructure nanoparticles (AuNPs ) 在 multilayered graphitic 上装饰了磁性的 nanocapsules (AGN ) 确定 analyte 并且消除与传统的 ISs 联系的问题。AGN 从 graphitic 部件表明了一个独特拉曼乐队,它在拉曼是局部性的 biomolecules 的沉默区域,没有任何背景干扰,使他们成为理想为量的拉曼分析。是从也显示的 AGN 的信号优异稳定性,甚至在严厉条件下面。与装饰 AuNPs 的改进, AGN nanostructures 极大地改进了重量的单位,特别地量的错误源于收集损失的排除和 analytes 的不一致的分发的量的精确性。AGN 进一步为房间染色和拉曼成像被利用,并且他们在 biomedicine 为应用显示出大诺言。 | Yuxiu Zou Long Chen Zhiling Song Ding Ding Yiqin Chen Yiting Xu Shanshan Wang Xiaofang Lai Yin Zhang Yang Sun Zhuo Chen Weihong Tan | 2016 | Nano Research2016，9，5： | 2 |
| 4 | Effect of Sweet Corn Straw Returning to the Field on Soil Fertility, Yield and Benefit显示文摘It is an important way for realizing sustainable development of sweet corn production to stabilize and improve soil fertility of cultivated land in sweet corn production region.Through the test of sweet corn straw directly returning to the field after 6seasons for 3years,the results showed that continuous single application of chemical fertilizer is not conducive to the stability of soil fertility and yield improvement,and implementation of straw returning could receive fertility,improve soil acidic conditions,and enhance the yield of sweet corn.Compared with before the test,the single application of chemical fertilizer increased soil available phosphorus,while the contents of soil organic matter,available nitrogen and available potassium decreased by 1.08,1.18 and 2.47mg/kg respectively,and the soil pH decreased by 0.15.Under the same fertilizer conditions,organic matter contents of single and double-season straw returning increased by 0.71 and 1.29g/kg,available nitrogen increased by 17.15 and 28.27mg/kg,available phosphorus increased by 0.96 and 1.73mg/kg,available potassium increased by 2.41 and 5.92mg/kg,the soil pH increased by 0.16 and 0.2.Compared with the single application of chemical fertilizer,the average yields of single and double-season straw returning increased by 7.5%and 11.8%,and their average income increased by 87.3and 117.1yuan of per mu(667m^2)respectively. | Peng Wangdong Chu Chengxing Zhong Yaqing Lai Weihong Zhang Haibin Huang Liuyu Shi Xiaoxiao Wei Jialiang | 2016 | Meteorological and Environmental Research2016，7，4： | 1 |
| 5 | Floating Escherichia coli by Expressing Cyanobacterial Gas Vesicle Genes显示文摘Gas vesicles are hollow, air-filled polyprotein structures that provide the buoyancy to cells. They are found in a variety of prokaryotes. In this study, we isolated a partial gas vesicle protein gene cluster containing gvp A and gvp C20Ψ from Planktothrix rubescens, and inserted it into an expression vector and expressed it in E. coli. The gas vesicle was developed in bacterial cells, which made bacterial cells to float on medium surface. We also amplified gvp A and gvp C20Ψ separately and synthesized an artificial operon by fusing these two genes with the standardized gene expression controlling elements of E. coli. The artificial operon was expressed in E. coli, forming gas vesicles and floating bacteria cells. Our findings verified that the whole set of genes and the overall structure of gas vesicle gene cluster are not necessary for developing gas vesicles in bacteria cells. Two genes, gvp A and gvp C20Ψ, of the gas vesicle gene cluster are sufficient for synthesizing an artificial operon that can develop gas vesicles in bacteria cells. Our findings provided a wide range of applications including easing the harvest of cultured microalgae and bacteria, as well as enriching and remediating aquatic pollutants by constructing gas vesicles in their cells. | WANG Tianhe KANG Li LI Jiaheng WU Wenjie ZHANG Peiran GONG Minghao LAI Weihong ZHANG Chunyan CHANG Lei PENG Yong YANG Zhongzhou LI Lian BAO Yingying XU Haowen ZHANG Xiaohua SUI Zhenghong YANG Guanpin WANG Xianghong | 2015 | Journal of Ocean University of China2015，14，1： | 1 |
| 6 | Ethyl Acetate Fraction in Hedyotis Diffusa Willd Inhibits T Cell Proliferation to Improve the Pathogenesis of Systemic Lupus Erythematosus显示文摘Background:Abnormal proliferation of T cells plays an essential role in the pathogenesis of Systemic lupus erythematosus(SLE).The pharmaceutical effect of Hedyotis Diffusa Willd(HDW)on SLE has been investigated previously.Nevertheless,the biomedical mechanism is still left unclear.Objective:This study has been arranged to evaluate the therapeutic effect of the ethyl acetate fraction of HDW(EAHDW)on lupus mice and explore the potential therapeutic mechanism.Methods:EAHDW was prepared with 80%ethanol reflex extraction followed by successive extraction,and ana-lyzed with HPLC and UPLC-Q/TOP-MS.The potential targets and STAT3 affinity regulators were predicted with network pharmacology.The pharmaceutic effect of EAHDW was studied with MRL/lpr mice.Cytokines and au-toantibodies were quantified with ELISA assays.The pathological damage of glomerulus and STAT3 expression in the kidney was detected with histochemical and immunohistochemical techniques.The cell cycle properties in cell proliferation were identified with the flow cytometry.The western blot and dual-Luciferase reporter assay were applied to evaluate translational and transcriptional activity of STAT3,respectively.Results:In this study,the extraction ratio of EAHDW was 2.7±1%,in which 19 ingredients were identified.Network pharmacological analysis showed that the target genes of EAHDW were highly focused on influencing the abnormal T cell proliferation in SLE.EAHDW showed the beneficial effects on pathological changes and STAT3 expression in the glomerulus of lupus mice,and the levels of cytokines and autoantibodies in serum.In cytological study,EAHDW treatment attenuated the transcription and phosphorylation of STAT3,which inhibited T cell proliferation by prolonged S-phase of the cell cycle.A total of 5 compounds in EAHDW exhibited high docking affinity to the DNA-binding site of STAT3.Conclusion:EAHDW could reduce the inflammatory response and inhibit the proliferation of T cells by interfering with the STAT3 signaling pathway,thereby playing a therapeutic effect on SLE. | Yahui Lai JinJun Ji Ying Li Jingqun Liu Xinhui Lan Weihong Ge Li Xu Yongsheng Fan Bin Ding | 2021 | Clinical Complementary Medicine and Pharmacology2021，1，1： | 0 |
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