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| 1 | Rapid and Efficient Gene Modification in Rice and Brachypodium Using TALENs显示文摘 | Qiwei Shan Yanpeng Wang Kunling Chen Zhen Liang Jun Li Yi Zhang Kang Zhang Jinxing Liu Daniel F. Voytas Xuelian Zheng Yong Zhang Caixia Gao | 2013 | Molecular Plant2013,6,4: | 37 |
| 2 | Reaction environment self-modification on low-coordination Ni^(2+)octahedra atomic interface for superior electrocatalytic overall water splitting显示文摘Large scale synthesis of high-efficiency bifunctional electrocatalyst based on cost-effective and earth-abundant transition metal for overall water splitting in the alkaline environment is indispensable for renewable energy conversion.In this regard,meticulous design of active sites and probing their catalytic mechanism on both cathode and anode with different reaction environment at molecular-scale are vitally necessary.Herein,a coordination environment inheriting strategy is presented for designing low-coordination Ni^(2+)octahedra(L-Ni-8)atomic interface at a high concentration(4.6 at.%).Advanced spectroscopic techniques and theoretical calculations reveal that the self-matching electron delocalization and localization state at L-Ni-8 atomic interface enable an ideal reaction environment at both cathode and anode.To improve the efficiency of using the self-modification reaction environment at L-Ni-8,all of the structural features,including high atom economy,mass transfer,and electron transfer,are integrated together from atomic-scale to macro-scale.At high current density of 500 mA/cm2,the samples synthesized at gram-scale can deliver low hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)overpotentials of 262 and 348 mV,respectively. | Kaian Sun Lei Zhao Lingyou Zeng Shoujie Liu Houyu Zhu Yanpeng Li Zheng Chen Zewen Zhuang Zhaoling Li Zhi Liu Dongwei Cao Jinchong Zhao Yunqi Liu Yuan Pan Chen Chen | 2020 | Nano Research2020,13,11: | 12 |
| 3 | Gravity and magnetic field and tectonic structure character in the southern Yellow Sea显示文摘The research of the geophysical survey in the cast of the southern Yellow Sea (SYS) (122°-125°E) in 1999 reveals that the SYS has a structure of three-uplifts and two-basins. The structure can be well concordant with the gravity and magnetic anomalies. In the basins, most of the gravity and magnetic anomalies are low and gentle. As well in the uplifts, the gravity anomalies are high positive ones,but the magnetic anomalies are plus and minus variant ones.Seismic data show that the mid-uplift is a Cenozoic one. The Paleozoic is under the Q+N strata, the thickness of which is less than 1 km, with no Palaeogene. The Wunansha uplift area and the Sunan uplift area have good continuity, which indicates that they belong to the same geological unit. The basin in the northern part of SYS, which developed in the late Cretaceous period, is a Cenozoic one mainly made up of Cenozoic sediment. On the contrary, the basin in the southern part is the seaward extension of Subei basin and is a medial Cenozoic sediment basin mainly made up of Cenozoic sediment. Because of the striking left-lateral sense translation of Tanlu fault zone, the east plate of fault zone moved northward on a large scale, which generated a massive north-south pull-apart stress field to make the earth crust pulled apart, revolved and tilted, and the pulling-apart basin came into being in the upper part of the crust. | LIANG Ruicai, PEI Yanliang, ZHENG Yanpeng WEI Jianwei & LIU Yanguang Key Laboratory of Marine Sedimentolog and Environmental Geology, First Institute of Oceanography. State Oceanic Administration. Qingdao 266061. China | 2003 | Chinese Science Bulletin2003,48,B06: | 12 |
| 4 | Joint land-sea seismic survey and research on the deep structures of the Bohai Sea areas显示文摘This paper presents the survey and research work of two land-sea profiles in the Bohai Sea,China,carried out in 2010–2011,including the seismic sources on land and in the sea,the ocean bottom seismographs(OBS)and their recovery,the coupling of OBS and the environment noise in sea area,the data quality of OBSs,and the result of data analysis.We focused on the investigation of crustal structures revealed by the two NE\EW-trending joint land-sea profiles.In combination with the Pn-velocity distribution and gravitymagnetic inversion results in the North China Craton,we propose that the undulation of the Moho interface in the Bohai and surrounding areas is not strong,and the lithospheric thinning is mainly caused by the thinning of its mantle part.The research result indicates that obvious lateral variations of Moho depth and seismic velocity appear nearby all the large-scale faults in Bohai Sea,and there is evidence of underplating and reforming of the lower crust by mantle material in the Bohai area.However,geophysical evidence does not appear to support the'mantle plume'or'delamination'model for the North China Craton destruction.The crustal structure of the Bohai Sea revealed'a relatively normal crust and obviously thinned mantle lid',local velocity anomalies and instability phenomena in the crust.These features may represent a combined effect of North China-Yangtze collision at an early stage and the remote action of Pacific plate subduction at a late stage. | HAO Tianyao YOU Qingyu LIU Lihua LV Chuanchuan XU Ya LI Zhiwei ZHAO Chunlei ZHENG Yanpeng LIU Chenguang HAN Guozhong | 2013 | Acta Oceanologica Sinica2013,32,12: | 11 |
| 5 | Highly efficient heritable genome editing in wheat using an RNA virus and bypassing tissue culture.显示文摘Genome editing provides novel strategies for improving plant traits,but relies on current genetic transformation and plant regeneration procedures,which can be inefficient.We have engineered a barley stripe mosaic virus(BSMV)-based sgRNA delivery vector(BSMV-sg)that is effective in performing heritable genome editing in Cas9-transgenic wheat plants.Mutated progenies were present in the next generation at frequencies ranging from 12.9%to 100%in three different wheat varieties,and 53.8%to 100%of mutants were virus-free.We also achieved multiplex mutagenesis in progeny using a pool of BSMV-sg vectors harboring different sgRNAs.Furthermore,we devised a virus-induced transgene-free editing procedure(VITF-Edit)to generate Cas9-free wheat mutants by crossing BSMV-infected Cas9-transgenic wheat pollen with wild-type wheat.Our study provides a robust,convenient and tissue culture-free approach for genome editing in wheat through virus infection. | Tingdong Li Jiacheng Hu Yu Sun Boshu Li Dingliang Zhang Wenli Li Jinxing Liu Dawei Li Caixia Gao Yongliang Zhang Yanpeng Wang | 2021 | Molecular Plant2021,14,11: | 10 |
| 6 | Assessment of structural stability in Bohai Sea area based on AHP-GDM model显示文摘The AHP-GDM model is used for the assessment of structural stability, with the Bohai Sea area as an example. In this model, the credit degree of each expert is calculated through the assessment matrix based on the similarity and diversity of vector. The comprehensive opinions of expert panel are quantitatively obtained by considering the effect of credit degree. According to the geological structural setting, the Bohai Sea is divided into twelve assessment zones of structural stability by non-uniform element method. The structural stability grade of each zone is obtained on the basis of the latest geophysical data, earthquake statistical data, and the information of fault activities, current stress field and crustal deformation. The results show that there are one relatively stable area, three relatively sub-stable areas, six relatively sub-unstable areas and two relatively unstable areas. The assessment results of non-uniform element method are very close with those of uniform grid method with size of 0.25° in longitude direction and 0.14° in latitude direction. However the workload of non-uniform element method is only 1/16 of the latter. Compared with traditional assessment methods of structural stability, a more objective and reliable assessment result can be obtained by combining non-uniform element method and AHP-GDM model. | XIU Zongxiang LIU Baohua XIE Qiuhong LI Xishuang LIU Chenguang PEI Yanliang ZHENG Yanpeng | 2013 | Acta Oceanologica Sinica2013,32,4: | 8 |
| 7 | Effect of preparation method on the bimetallic NiCu/SAPO-11 catalysts for the hydroisomerization of n-octane显示文摘The bimetallic NiCu/SAPO-11 catalysts were prepared by co-impregnation, sequential impregnation, coprecipitation, and mechanical mixing methods. Powder X-ray diffraction, nitrogen adsorption-desorption,temperature-programmed desorption of ammonia, transmission electron microscopy, temperatureprogrammed reduction of hydrogen, and X-ray photoelectron spectroscopy were used to characterize the physicochemical properties of the catalysts. The catalytic performance of the catalysts was assessed by the hydroisomerization of n-octane. Results indicated that the conversion of n-octane and selectivity to n-octane isomers were related to the preparation methods of the catalysts. The catalysts with Ni-Cu alloy effectively restrained the hydrogenolysis reaction that decreases the selectivity of isomerization. The catalyst prepared by the mechanical mixing of NiO and CuO hardly formed Ni-Cu alloy, showing obvious hydrogenolysis and low selectivity to n-octane isomers. The unbalance between the metal and acid sites resulted in the low conversion of n-octane and selectivity to n-octane isomers. Among all the catalysts,the catalyst prepared by the co-impregnation method exhibited high catalytic activity and selectivity to n-octane isomers. | Zhichao Yang Yunqi Liu Yanpeng Li Lingyou Zeng Zhi Liu Xueying Liu Chenguang Liu | 2019 | Journal of Energy Chemistry2019,28,1: | 7 |
| 8 | Genomic insights into the fast growth of paulownias and the formation of Paulownia witches' broom显示文摘Paulownias are among the fastest growing trees in the world,but they often suffer tremendous loss of wood production due to infection by Paulownia witches'broom(PaWB)phytoplasmas.In this study,we have sequenced and assembled a high-quality nuclear genome of Paulownia fortunei,a commonly cultivated paulownia species.The assembled genome of P.fortunei is 511.6 Mb in size,with 93.2%of its sequences anchored to 20 pseudo-chromosomes,and it contains 31985 protein-coding genes.Phylogenomic analyses show that the family Paulowniaceae is sister to a clade composed of Phrymaceae and Orobanchaceae.Higher photosynthetic efficiency is achieved by integrating C3 photosynthesis and the crassulacean acid metabolism pathway,which may contribute to the extremely fast growth habit of paulownia trees.Comparative transcriptome analyses reveal modules related to cambial growth and development,photosynthesis,and defense responses.Additional genome sequencing of PaWB phytoplasma,combined with functional analyses,indicates that the effector PaWB-SAP54 interacts directly with Paulownia PfSPLa,which in turn causes the degradation of PfSPLa by the ubiquitin-mediated pathway and leads to the formation of witches'broom.Taken together,these results provide significant insights into the biology of paulownias and the regulatory mechanism for the formation of PaWB. | Yabing Cao Guiling Sun Xiaoqiao Zhai Pingluo Xu Liming Ma Minjie Deng Zhenli Zhao Haibo Yang Yanpeng Dong Zhonghai Shang Yujie Lv Lijun Yan Haifang Liu Xibing Cao Bingbing Li Zhe Wang Xiaogai Zhao Haiyan Yu Fan Wang Wen Ma Jinling Huang Guoqiang Fan | 2021 | Molecular Plant2021,14,10: | 7 |
| 9 | Degradation kinetics and mechanism of trace nitrobenzene by granular activated carbon enhanced microwave/hydrogen peroxide system显示文摘The kinetics of thedegradation of trace nitrobenzene (NB) by a granular activated carbon (GAC) enhanced microwave (MW)/hydrogen peroxide (H202 ) systemwas studied. Effects of pH, NB initial concentration and tert-butyl alcohol on the removal efficiencywere examined. Itwas found that the reaction rate fitswell to first-order reaction kinetics in the MW/GAC/H202 process. Moreover, GAC greatly enhanced thedegradation rate of NB inwater. Under a given condition (MW power300 W, H202dosage 10 mg/L, pH 6.85 and temperature (60 ± 5)°C), thedegradation rate of NBwas 0.05214 min 1when4 g/L GACwas added. In general, alkaline pHwas better for NBdegradation; however, the optimum pHwas 8.0 in the tested pH value range of4.0-12.0. At H202dosage of 10 mg/L and GACdosage of4 g/L, the removal of NBwasdecreasedwith increasing initial concentrations of NB, indicating that a low initial concentrationwas beneficial for thedegradation of NB. These results indicated that the MW/GAC/H202 processwas effective for trace NBdegradation inwater. Gas chromatography-mass spectrometry analysis indicated that a hydroxyl radical addition reaction anddehydrogenation reaction enhanced NBdegradation. | Dina Tan Honghu Zeng Jie Liu Xiaozhang Yu Yanpeng Liang Lanjing Lu | 2013 | Journal of Environmental Sciences2013,25,7: | 6 |
| 10 | MnO_(2) cathode materials with the improved stability via nitrogen doping for aqueous zinc-ion batteries显示文摘The research and exploration of manganese-based aqueous zinc-ion batteries have been controversial of cycle stability and mechanism investigation,thus improving the stability and exploring storage mechanism are still the most main issue.Defect engineering has become an effective method to improve cycle stability.Herein,a nitrogen-doped ε-MnO_(2)(MnO_(2)@N)has been prepared using electrochemical deposition and heat treatment under nitrogen atmosphere.As the cathode for zinc-ion batteries,the capacity retention rate of MnO_(2)@N cathode is close to 100%after 500 cycles at 0.5 A g^(-1),while the capacity retention rate for the initial MnO_(2) cathode is 62%.At 5 A g^(-1),the capacity retention rate of MnO_(2)@N cathode is 83%after 1000 cycles,which is much higher than the 27%capacity retention rate for the original MnO_(2) cathode.And it can be found that the oxygen vacancies increase after nitrogen doping,which can improve the conductivity of the MnO_(2)@N cathode.Also,there is Mn-N bond in MnO_(2)@N,which can enhance the electrochemical stability of MnO_(2)@N cathode.In addition,the electrochemical mechanism of MnO_(2)@N cathode has been explored by the CV,GCD and GITT tests.It is found that nitrogen doping promotes the intercalation of H^(+) and the corresponding capacity contribution.Compared with the original MnO_(2) cathode,the diffusion coefficient of H^(+) and Zn^(2+) in MnO_(2)@N cathode increases.Also,the reactions during the charging and discharging process are explored through the ex-situ XRD test.And this work may provide some new ideas for improving the stability of manganese-based zinc-ion batteries. | Yanan Zhang Yanpeng Liu Zhenhua Liu Xiaogang Wu Yuxiang Wen Hangda Chen Xia Ni Guohan Liu Juanjuan Huang Shanglong Peng | 2022 | Journal of Energy Chemistry2022,31,1: | 6 |
| 11 | The fluidity and molding ability of glass-forming Zr-based alloy melt显示文摘The fluidity and filling ability of glass-forming Zr-based alloy melt in copper mould were investigated both theoretically and experimentally. The major factors which affected the flowing behavior of the metallic melt in the mold were determined,which provides the foundation for overcoming the contradiction between the filling and formation of amorphous alloy during the rapid cooling process of the metallic melts. The casting factors to prepare a metallic ring were discussed and selected. As a result,a Zr-based bulk metallic glass ring was prepared successfully. | MA MingZhen ZONG HaiTao WANG HaiYan QI YanPeng LIANG SunXing SONG AiJun ZHANG WeiGuo WANG Qiang ZHANG XinYu JING Qin LI Gong LIU RiPing | 2008 | Science China(Physics,Mechanics & Astronomy)2008,51,4: | 6 |
| 12 | Genome editing in plants with MAD7 nuclease显示文摘MAD7 is an engineered nuclease of the Class 2 type V-A CRISPR-Cas(Cas12 a/Cpf1)family with a low level of homology to canonical Cas12 a nucleases.It has been publicly released as a royalty-free nuclease for both academic and commercial use.Here,we demonstrate that the CRISPR-MAD7 system can be used for genome editing and recognizes T-rich PAM sequences(YTTN)in plants.Its editing efficiency in rice and wheat is comparable to that of the widely used CRISPR-Lb Cas12 a system.We develop two variants,MAD7-RR and MAD7-RVR that increase the target range of MAD7,as well as an M-AFID(a MAD7-APOBEC fusion-induced deletion)system that creates predictable deletions from 50-deaminated Cs to the MAD7-cleavage site.Moreover,we show that MAD7 can be used for multiplex gene editing and that it is effective in generating indels when combined with other CRISPR RNA orthologs.Using the CRISPR-MAD7 system,we have obtained regenerated mutant rice and wheat plants with up to 65.6%efficiency. | Qiupeng Lin Zixu Zhu Guanwen Liu Chao Sun Dexing Lin Chenxiao Xue Shengnan Li Dandan Zhang Caixia Gao Yanpeng Wang Jin-Long Qiu | 2021 | Journal of Genetics and Genomics2021,48,6: | 4 |
| 13 | Aerodynamics of Ascending Flight in Fruit Flies显示文摘作为一个很基本的飞行模式,登上飞行对各种 manmade 和自然 fliers 显然很重要。然而,通常为大多数看见 fliers - 昆虫,关于这个飞行模式的研究是稀罕的。在这篇论文,我们联合了试验性的大小和数字模拟调查 kinematical 特征,空气动力学的表演和在水果苍蝇(果蝇 virilis ) 登上飞行的力量要求。苍蝇在大约 0.12 的进展比率上升。登上飞行的最重要的特征是与徘回相比的更大的击振幅,当另外的 kinematics 是很类似的时。从一个气体动力学观点,这个增加的击振幅被需要克服 “downwash flow” 的否定效果,由苍蝇的向上的运动引起了。尽管徘回一样,上升水果苍蝇利用推迟的货摊和快投球起来机制产生为平衡重量和身体要求的电梯的多数拖。由使用一个更大的击振幅克服 “downwash flow” 的否定效果,更大的精力费用(大约 20%) 比相等的徘回的被要求。 | Xueguang Meng Yanpeng Liu Mao Sun | 2017 | Journal of Bionic Engineering2017,14,1: | 4 |
| 14 | Marine Engineering Geological Exploration Information System(MEGEIS):A GIS-based Application to Marine Resources Exploitation显示文摘Based on the ArcGIS geographic information system and the ORACLE database management system,this paper reports our studies on the technology of Marine Engineering Geological Exploration Information System(MEGEIS). By analyzing system structure,designing function modules and discussing data management,this paper systematically proposes a framework of technol-ogy to integrate,manage,and analyze the seabed information comprehensively. Then,the technology is applied to the design and development of the Bohai Sea Oilfield Paradigm Area Information System. The system can not only meet the practical demands of marine resources exploration and exploitation in the Bohai Sea oilfield,but also serve as a preparatory work in theory and technology for the realization of the 'Digital Seabed'. | SU Tianyun LIU Baohua ZHAI Shikui LIANG Ruicai ZHENG Yanpeng | 2007 | Journal of Ocean University of China2007,6,3: | 3 |
| 15 | Can the Grain-for-Green Program Really Ensure a Low Sediment Load on the Chinese Loess Plateau?显示文摘The Chinese Loess Plateau is the most seriously eroded area in the world and contributes the vast majority of the sediment that goes into the Yellow River.Since the 1950s,progressive soil and water conservation measures have been implemented—in particular,large-scale ecological restoration has been ongoing since 1999—resulting in a significant reduction of the sediment load.However,the mechanism of the sediment transport dynamics is not fully understood due to multiple and complicated influencing factors including climate change and human activities(e.g.,ecological restoration).A challenging question,then,arises:Is the current low sediment level a“new normal”in this era and in the future?To address this question,we selected a typical loess hilly region where considerable ecological restoration has been implemented,and which is regarded as the site of the first and most representative Grainfor-Green program in the Loess Plateau.We investigated the evolution of discharge–sediment relationships in the past decades(1960–2010)and their association with the soil and water conservation measures in this area.The results showed that there was a distinct change in the regression parameters of the commonly used annual discharge–sediment regression equation—a continuously increasing trend of parameter b and a decreasing trend of parameter a,accompanying the ecological restoration.The increase in exponent b(i.e.,a steeper slope)implies a potential lower sediment load resulting from low discharge and a potential higher sediment load resulting from large discharge.This finding may question the new normal of a low sediment level and implies the potential risk of a large sediment load during extremely wet years. | Pengcheng Sun Yiping Wu Zhifeng Yang Bellie Sivakumar Linjing Qiu Shuguang Liu Yanpeng Cai | 2019 | Engineering2019,5,5: | 3 |
| 16 | Selection and identification of a novel ssDNA aptamer targeting human skeletal muscle显示文摘Skeletal muscle disorders have posed great threats to health.Selective delivery of drugs and oligonucleotides to skeletal muscle is challenging.Aptamers can improve targeting efficacy.In this study,for the first time,the human skeletal muscle-specific ssDNA aptamers(HSM01,etc.)were selected and identified with Systematic Evolution of Ligands by Exponential Enrichment(SELEX).The HSM01 ssDNA aptamer preferentially interacted with human skeletal muscle cells in vitro.The in vivo study using tree shrews showed that the HSM01 ssDNA aptamer specifically targeted human skeletal muscle cells.Furthermore,the ability of HSM01 ssDNA aptamer to target skeletal muscle cells was not affected by the formation of a disulfide bond with nanoliposomes in vitro or in vivo,suggesting a potential new approach for targeted drug delivery to skeletal muscles via liposomes.Therefore,this newly identified ssDNA aptamer and nanoliposome modification could be used for the treatment of human skeletal muscle diseases. | Shuming Sun Han Liu Yan Hu Yanpeng Wang Mingri Zhao Yijun Yuan Yafei Han Yingying Jing Jin Cui Xiaoxiang Ren Xiao Chen Jiacan Su | 2023 | Bioactive Materials2023,,2: | 3 |
| 17 | Dynamic tensile and failure behavior of bi-directional reinforced GFRP materials显示文摘In this paper,a series of static/dynamic tensile tests are performed for glass fiber reinforced plastic(GFRP)composites.Using the combination of high-speed photography and digital image correlation(DIC)technology,true stress-strain curves in different directions and strain rates are obtained.We also obtained the dynamic failure strain of the material in different directions,which are used to accurately describe the dynamic tensile and failure behavior of the material.The experimental results show that there is a stiffness change point N in three directions under different strain rate(10-3 s-1,10 s-1,100 s-1)tensile conditions.The stiffness before and after N point is recorded as Einitial and Echanged respectively.The values of Echanged in weft direction and warp direction are about 30%to 50%of Einitial,while Echanged in tilt direction is only about 10%of Einitial.The fiber has the highest strength in the weft direction and the tilt direction has the lowest strength.With the combination of high-speed photography and DIC technology,the dynamic failure parameters of different directions under the strain rate of 100 s-1 are obtained.The dynamic failure strains in three directions are 0.245,0.373 and 0.341,respectively.The parameters are verified by impact three-point bending test.These works can more accurately describe the dynamic mechanical behavior of glass fiber reinforced plastic(GFRP)composites and provide reference for the design of GFRP structures. | Zishang Liu Zhe Yang Yuchao Chen Yangyang Yu Yanpeng Wei Maohui Li Chenguang Huang | 2020 | Acta Mechanica Sinica2020,36,2: | 2 |
| 18 | Cyclophosphamide loaded thermo-responsive hydrogel system synergize with a hydrogel cancer vaccine to amplify cancer immunotherapy in a prime-boost manner显示文摘Although neoantigen-based cancer vaccines show great potential in cancer immunotherapy due to their ability to induce effective and long-lasting anti-tumor immunity,their development is hindered by the limitations of neoantigens identification,low immunogenicity,and weak immune response.Cyclophosphamide(CTX)not only directly kills tumors but also causes immunogenic cell death,providing a promising source of antigens for cancer vaccines.Herein,a combined immunotherapy strategy based on temperature-sensitive PLEL hydrogel is designed.First,CTX-loaded hydrogel is injected intratumorally into CT26 bearing mice to prime anti-tumor immunity,and then 3 days later,PLEL hydrogels loaded with CpG and tumor lysates are subcutaneously injected into both groins to further promote anti-tumor immune responses.The results confirm that this combined strategy reduces the toxicity of CTX,and produces the cytotoxic T lymphocyte response to effectively inhibit tumor growth,prolong survival,and significantly improve the tumor cure rate.Moreover,a long-lasting immune memory response is observed in the mice.About 90%of the cured mice survive for at least 60 days after being re-inoculated with tumors,and the distant tumor growth is also well inhibited.Hence,this PLEL-based combination therapy may provide a promising reference for the clinical promotion of chemotherapy combined with cancer vaccines. | Fan Yang Kun Shi Ying Hao Yanpeng Jia Qingya Liu Yu Chen Meng Pan Liping Yuan Yongyang Yu Zhiyong Qian | 2021 | Bioactive Materials2021,6,10: | 2 |
| 19 | Surface characteristics of microalgae and their effects on harvesting performance by air flotation显示文摘Flotation is considered as an effective and energy efficient method for harvesting microalgae.However,the interaction mechanism between bubble-algae cell and cell-cell interfacial boundaries in microalgae flotation is not completely clear.To better understand the effects of surface characteristics on microalgae flotation performance,the hydrophobicity and the zeta potential of two different microalgae species were quantified based on experimental measurements and the extended DLVO(Derjagin–Landau–Verwey–Overbeek)theory.Flotation experiments were then carried out and the effects of surface characteristics on microalgae flotation performance were analyzed.Algae Chlorella vulgaris and Anabaena vasriabilis show naturally hydrophilic and hydrophobic properties,respectively.The addition of a cationic surfactant(C16TAB)can modify hydrophilic microalgae cells into hydrophobic and further Chlorella hydrophobicity is enhanced with increased C16TAB concentrations.The zeta potentials of both algae strains are negative in the tested pH range.Compared with Chlorella vulgaris,the magnitude of zeta potential of Anabaena vasriabilis is found larger at the same pH,resulting in a more dispersed distribution in the suspension.In addition,flotation experiments demonstrated that microalgae hydrophobicity and zeta potential have significant impacts on the harvesting efficiency and concentration factor.The hydrophobic attraction is found to play a more important role in determining the harvesting performance than electrostatic repulsion between the interacting surfaces,especially for hydrophobicity algae in the present study.Finally,the highest flotation efficiency and the highest concentration factor could not be concurrently obtained for both algae strains,suggesting that optimized flotation conditions should be selected as a compromise. | Wen Hao Li Yanpeng Shen Zhou Ren Xiangying Zhang Wenjun Liu Jun | 2017 | International Journal of Agricultural and Biological Engineering2017,10,1: | 2 |
| 20 | 1T@2H-MoSe2 nanosheets directly arrayed on Ti plate: An efficient electrocatalytic electrode for hydrogen evolution reaction显示文摘 | Jingtong Zhang Yalan Chen Ming Liu Kun Du Yan Zhou Yanpeng Li Zhaojie Wang Jun Zhang | 2018 | Nano Research2018,11,9: | 2 |