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12篇 您的检索式:作者名="Yifeng Fang"
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1Comparative sorption and desorption behaviors of PFHx S and PFOS on sequentially extracted humic substances显示文摘The sorption and desorption behaviors of two perfluoroalkane sulfonates(PFSAs),including perfluorohexane sulfonate(PFHx S)and perfluorooctane sulfonate(PFOS)on two humic acids(HAs)and humin(HM),which were extracted from a peat soil,were investigated.The sorption kinetics and isotherms showed that the sorption of PFOS on the humic substances(HSs)was much higher than PFHx S.For the same PFSA compound,the sorption on HSs followed the order of HM>HA2>HA1.These suggest that hydrophobic interaction plays a key role in the sorption of PFSAs on HSs.The sorption capacities of PFSAs on HSs were significantly related to their aliphaticity,but negatively correlated to aromatic carbons,indicating the importance of aliphatic groups in the sorption of PFSAs.Compared to PFOS,PFHx S displayed distinct desorption hysteresis,probably due to irreversible pore deformation after sorption of PFHx S.The sorption of the two PFSAs on HSs decreased with an increase in p H in the solution.This is ascribed to the electrostatic interaction and hydrogen bonding at lower p H.Hydrophobic interaction might also be stronger at lower p H due to the aggregation of HSs.Lixia Zhao Yifeng Zhang Shuhong Fang Lingyan Zhu Zhengtao Liu 2014Journal of Environmental Sciences2014,26,12:3
2OsbZIP72 Is Involved in Transcriptional Gene-Regulation Pathway of Abscisic Acid Signal Transduction by Activating Rice High-Affinity Potassium Transporter OsHKT1;1显示文摘We created CRISPR-Cas9 knock-out and overexpressing OsbZIP72 transgenic rice plants to gain a better understanding of the role and molecular mechanism of OsbZIP72 gene in stress tolerance,which has remained largely elusive.OsbZIP72 was expressed and integrated into rice transgenic plant genomes,and the OsbZIP72 transcript in overexpression lines was elicited by salinity,abscisic acid(ABA)and drought stresses.OsbZIP72 overexpressing plants showed higher tolerance to drought and salinity stresses,while knock-out transgenic lines showed higher sensitivity to these stresses.The differentially expressed genes(DEGs)from RNA-sequencing data encompassed several abiotic stress genes,and the functional classification of these DEGs demonstrated the robust transcriptome diversity in OsbZIP72.Yeast one-hybrid,along with luciferase assay,indicated that OsbZIP72 acted as a transcriptional initiator.Remarkably,electrophoresis mobility assay revealed that OsbZIP72 bound directly to the ABAresponsive element in the OsHKT1;1 promoter region and activated its transcription.Overall,our findings revealed that OsbZIP72 can act as a transcriptional modulator with the ability to induce the expression of OsHKT1;1 in response to environmental stress through an ABA-dependent regulatory pathway,indicating that OsbZIP72 can play a crucial role in the ABA-mediated salt and drought tolerance pathway in rice.WANG Baoxiang LIU Yan WANG Yifeng LI Jingfang SUN Zhiguang CHI Ming XING Yungao XU Bo YANG Bo LI Jian LIU Jinbo CHEN Tingmu FANG Zhaowei LU Baiguan XU Dayong Babatunde Kazeem BELLO 2021Rice science2021,28,3:2
3Establishing the adoption of electronic word-of-Mouth through consumers' perceived credibility 显示文摘Fan Yiwen Miao Yifeng Fang Yuhsien 2013International Business Research2013,6,3:1
4GelNB molecular coating as a biophysical barrier to isolate intestinal irritating metabolites and regulate intestinal microbial homeostasis in the treatment of inflammatory bowel disease显示文摘Inflammatory bowel disease(IBD)is a chronic,immune-mediated inflammatory disease characterized by the destruction of the structure and function of the intestinal epithelial barrier.Due to the poor remission effect and severe adverse events associated with current clinical medications,IBD remains an incurable disease.Here,we demonstrated a novel treatment strategy with high safety and effective inflammation remission via tissue-adhesive molecular coating.The molecular coating is composed of o-nitrobenzaldehyde(NB)-modified Gelatin(GelNB),which can strongly bond with-NH_(2)on the intestinal surface of tissue to form a thin biophysical barrier.We found that this molecular coating was able to stay on the surface of the intestine for long periods of time,effectively protecting the damaged intestinal epithelium from irritations of external intestinal metabolites and harmful flora.In addition,our results showed that this coating not only provided a beneficial environment for cell migration and proliferation to promote intestinal repair and regeneration,but also achieved a better outcome of IBD by reducing intestinal inflammation.Moreover,the in vivo experiments showed that the GelNB was better than the classic clinical medication-mesalazine.Therefore,our molecular coating showed potential as a promising strategy for the prevention and treatment of IBD.Qijiang Mao Haoqi Pan Yiyin Zhang Yi Zhang Qiuwen Zhu Yi Hong Zhengze Huang Yang Li Xu Feng Yifeng Fang WenChao Chen Pengfei Chen Bo Shen Hongwei Ouyang Yuelong Liang 2023Bioactive Materials2023,,1:1
5CuSx-mediated two reaction systems enable biomimetic photocatalysis in CO_(2) reduction with visible light显示文摘The performances of heterogeneous catalysts can be effectively improved by optimizing the catalysts via appropriate structure design.Herein,we show that the catalysis of cuprous sulfide can be boosted by constructing the hybrid structure with Cu_(2)S nanoparticles on amorphous CuSx matrix(Cu_(2)S/CuSx).In the photocatalytic CO_(2) reduction under visible light irradiation,the Cu_(2)S/CuSx exhibited a CO production rate at 4.0μmol h-1 that is 12-fold higher than that of the general Cu_(2)S catalyst.Further characterizations reveal that the Cu_(2)S/CuSx has two reaction systems that realize the biomimetic catalysis,involving in the light reaction on the Cu_(2)S nanoparticle-CuSx matrix heterojunctions for proton/electron production,and the dark reaction on the defect-rich CuSx for CO_(2) reduction.The CuSx matrix could efficiently activate CO_(2) and stabilize the split hydrogen species to hinder undesired hydrogen evolution reaction,which benefits the proton-electron transfer to reduce CO_(2),a key step for bridging the two reaction systems.Ling-Xiang Wang Zhi-Qiang Wang Liang Wang Zhiyuan Yang Qiuyan Zhu Yifeng Liu Wei Fang Xue-Qing Gong Yuefeng Liu Xiaolong Liu Feng-Shou Xiao 2022Journal of Energy Chemistry2022,31,2:1
6Screening potential P-glycoprotein inhibitors by combination of a detergent-free membrane protein extraction with surface plasmon resonance biosensor显示文摘P-glycoprotein(P-gp)highly expressed in cancer cells can lead to multidrug resistance(MDR)and the combination of anti-cancer drugs with P-gp inhibitor has been a promising strategy to reverse MDR in cancer treatment.In this study,we established a label-free and detergent-free system combining surface plasmon resonance(SPR)biosensor with styrene maleic acid(SMA)polymer membrane proteins(MPs)stabilization technology to screen potential P-gp inhibitors.First,P-gp was extracted from MCF-7/ADR cells using SMA polymer to form SMA liposomes(SMALPs).Following that,SMALPs were immobilized on an SPR biosensor chip to establish a P-gp inhibitor screening system,and the affinity between P-gp and small molecule ligand was determined.The methodological investigation proved that the screening system had good specificity and stability.Nine P-gp ligands were screened out from 50 natural products,and their affinity constants with P-gp were also determined.The in vitro cell verification experiments demonstrated that tetrandrine,fangchinoline,praeruptorin B,neobaicalein,and icariin could significantly increase the sensitivity of MCF-7/ADR cells to Adriamycin(Adr).Moreover,tetrandrine,praeruptorin B,and neobaicalein could reverse MDR in MCF-7/ADR cells by inhibiting the function of P-gp.This is the first time that SMALPs-based stabilization strategy was applied to SPR analysis system.SMA polymer can retain P-gp in the environment of natural lipid bilayer and thus maintain the correct conformation and physiological functions of P-gp.The developed system can quickly and accurately screen small molecule ligands of complex MPs and obtain affinity between complex MPs and small molecule ligands without protein purification.Yuhong Cao Jiahao Fang Yiwei Shi Hui Wang Xiaofei Chen Yue Liu Zhenyu Zhu Yan Cao Zhanying Hong Yifeng Chai 2022Acta Pharmaceutica Sinica B2022,12,7:0
7Insights into Photothermally Enhanced Photocatalytic U(VI)Extraction by a Step-Scheme Heterojunction显示文摘In this work,a CdS/BivO4 step-scheme(S-scheme)heterojunction with self-photothermally enhanced photocatalytic effect was synthesized and applied for efficient U(VI)photoextraction.Characterizations such as transient absorption spectroscopy and Tafel test together confirmed the formation of S-scheme heterojunctions,which allows CdS/BivO_(4) to avoid photocorrosion while retaining the strong reducing capacity of CdS and the oxidizing capacity of BivO_(4).Experimental results such as radical quenching experiments and electron spin resonance show that U(VI)is rapidly oxidized by photoholes/·OH to insoluble UO(OH)2 after being reduced to U(IV)by photoelectrons/·O2,which precisely avoids the depletion of electron sacrificial agents.The rapid recombination of electron-hole pairs triggered by the S-scheme heterojunction is found to release large amounts of heat and accelerate the photocatalysis.This work offers a new enhanced strategy for photocatalytic uranium extraction and presents a direction for the design and development of new photocatalysts.Yifeng Zhang Haorong Sun Feixue Gao Shuo Zhang Qingzhi Han Jing Li Ming Fang Yawen Cai Baowei Hu Xiaoli Tan Xiangke Wang 2023Research2023,,1:0
8Physical regulation of copper catalyst with a hydrophobic promoter for enhancing CO_(2)hydrogenation to methanol显示文摘The hydrogenation of CO_(2)to methanol,which is restricted by water products,requires a selective removal of water from the reaction system.Here,we show that physically combining hydrophobic polydivinylbenzene with a copper catalyst supported by silica can increase methanol production and CO_(2)conversion.Mechanistic investigation reveals that the hydrophobic promoter could hinder the oxidation of copper surface by water,maintaining a small fraction of metallic copper species on the copper surface with abundant Cu^(δ+),resulting in high activity for the hydrogenation.Such a physically mixed catalyst survives the continuous test for 100 h owing to the thermal stability of the polydivinylbenzene promoter.Hangjie Li Wei Fang Ling-Xiang Wang Yifeng Liu Lujie Liu Tulai Sun Ciqi Liao Yihan Zhu Liang Wang Feng-Shou Xiao 2023The Innovation2023,4,4:0
9cPCN-Regulated SnO_(2) Composites Enables Perovskite Solar Cell with Efficiency Beyond 23%显示文摘Efficient electron transport layers(ETLs)not only play a crucial role in promoting carrier separation and electron extraction in perovskite solar cells(PSCs)but also significantly affect the process of nucleation and growth of the perovskite layer.Herein,crystalline polymeric carbon nitrides(cPCN)are introduced to regulate the electronic properties of SnO_(2) nanocrystals,resulting in cPCN-composited SnO_(2)(SnO_(2)-cPCN)ETLs with enhanced charge transport and perovs-kite layers with decreased grain boundaries.Firstly,SnO_(2)-cPCN ETLs show three times higher electron mobility than pristine SnO_(2) while offering better energy level alignment with the perovskite layer.The SnO_(2)-cPCN ETLs with decreased wettability endow the perovskite films with higher crystallinity by retarding the crystallization rate.In the end,the power conversion efficiency(PCE)of planar PSCs can be boosted to 23.17%with negligible hysteresis and a steady-state efficiency output of 21.98%,which is one of the highest PCEs for PSCs with modified SnO_(2) ETLs.SnO_(2)-cPCN based devices also showed higher stability than pristine SnO_(2),maintaining 88%of the initial PCE after 2000 h of storage in the ambient environment(with controlled RH of 30%±5%)without encapsulation.Zicheng Li Yifeng Gao Zhihao Zhang Qiu Xiong Longhui Deng Xiaochun Li Qin Zhou Yuanxing Fang Peng Gao 2021Nano-Micro Letters2021,13,7:0
10An Electrochemiluminescent Platform for Living Cell Oxygen Metabolism Monitoring显示文摘This study has developed a novel sensing platform for the investigation of cell oxygen metabolism.With chitosan@TiO_(2) nanocomposites as supporting matrix which was decorated on the surface of indium tin oxide glass,it can effectively absorb A549 cells and sensitize the electrochemiluminescence(ECL)of luminol.On this platform,the ECL output is dependent on the level of reactive oxygen species(ROSs),which was evidenced by the intervening of resveratrol,a typical ROSs’scavenger.The results indicated that the ECL signal was quenched by the resveratrol within its concentration range from 0.10 nM to 2.97μM.Thus,it is believable that the ECL of luminol sensitively responded upon oxygenic matters on this living cell platform would be powerful for cell oxygen metabolism monitoring.Yuanhong Wang Fang Zhang Peng Miao Huiling Li Yifeng Tu 2018Journal of Analysis and Testing2018,2,2:0
11A network for long-term monitoring of vegetation in the area of Fildes Peninsula, King George Island显示文摘Climate warming has become evident in the maritime Antarctic over the past decades, and has already influenced the growing season and the population size of two native vascular plants in Antarctica, Deschampsia antarctica and Colobanthus quitensis. Both vascular plant species are therefore regarded as good bioindicators of regional warming in west Antarctica. To carry out long-term monitoring of vegetation(mainly using D. antarctica) and build a comprehensive research platform for multi-disciplinary study(including botany, microbiology, ecology, and environmental science) for Chinese scientists, 13 permanent plots were established in January and February of 2013–2015 in the area of Fildes Peninsula(King George Island). Here we present the benchmark data of the first observations from these plots, including site characteristics, and the population and associates of D. antarctica in each plot. The basic data are important to understand the vegetation change, distribution range, and expansion of D. antarctica in Antarctica under future climate change scenarios.YAO Yifeng WANG Xia LI Jinfeng YANG Jian CAO Shunan PENG Fang KURBATOVA Ljuba PETER Hans-Ulrich BRAUN Christina LI Chengsen 2017Advances in Polar Science2017,28,1:0
12Treatment of phenol-contaminated soils by electro-kinetic process显示文摘Yifeng FANG Lankun CAI Yuyang ZHENG Na TANG 2006Chinese Journal Of Geochemistry2006,25,B08:0
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