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| 1 | Effect of hydrophilic silica nanoparticles on hydrate formation: Insight from the experimental study显示文摘Invasion of drilling fluid into natural gas hydrate deposits during drilling might damage the reservoir,induce hydrate dissociation and then cause wellbore instability and distortion of the data from well logging. Adding nanoparticles into drilling fluid is an effective method in reducing the invasion of drilling fluid and enhancing borehole stability. However, the addition of nanoparticles might also introduce hydrate formation risk in borehole because they can act as the 'seeds' for hydrate nucleation. This paper presents an experimental study of the effect of hydrophilic silica nanoparticle on gas hydrate formation in a dynamic methane/liquid-water system. In the experiment, the ultrapure water with and without1.0 wt%–6.0 wt% concentrations of silica nanoparticles, grain sizes of 20 and 50 nm, were pressurized by methane gas under varied conditions of temperature and pressure. The induction time, the gas consumption, and the average rate of gas consumption in the system were measured and compared to those in ultrapure water. The results show that a concentration of 4.0 wt% hydrophilic SiO_2 particles with a grain size of 50 nm has a relatively strong inhibition effect on hydrate formation when the initial experimental condition is 5.0 °C and 5.0 MPa. Compared to ultrapure water, the hydrophilic nano-SiO_2 fluid increases the induction time for hydrate formation by 194% and decreases the amount and average rate of hydrate formation by 10% and 17%, respectively. This inhibition effect may be attributed to the hydrophilicity,amount and aggregation of silica nanoparticle according to the results of water activity and zeta potential measurements. Our work also elucidates hydrophilic, instead of hydrophobic, nanoparticles can be added to the drilling fluid to maintain wellbore stability and to protect the hydrate reservoir from drilling mud damage, because they exhibit certain degree of hydrate inhibition which can reduce the risk of hydrate reformation and aggregation during gas hydrate or deep water drilling if their concentration can be controlled properly. | Ren Wang Tianle Liu Fulong Ning Wenjia Ou Ling Zhang Zhen Wang Li Peng Jiaxin Sun Zhichao Liu Tianshu Li Huicui Sun Guosheng Jiang | 2019 | Journal of Energy Chemistry2019，28，3： | 12 |
| 2 | Calcium silicate bioactive ceramics induce osteogenesis through oncostatin M显示文摘Immune reactions are a key factor in determining the destiny of bone substitute materials after implantation.Macrophages,the most vital factor in the immune response affecting implants,are critical in bone formation,as well as bone biomaterial-mediated bone repair.Therefore,it is critical to design materials with osteoimmunomodulatory properties to reduce host-to-material inflammatory responses by inducing macrophage polarization.Our previous study showed that calcium silicate(CS)bioceramics could significantly promote osteogenesis.Herein,we further investigated the effects of CS on the behavior of macrophages and how macrophages regulated osteogenesis.Under CS extract stimulation,the macrophage phenotype was converted to the M2 extreme.Stimulation by a macrophage-conditioned medium that was pretreated by CS extracts resulted in a significant enhancement of osteogenic differentiation of bone marrow mesenchymal stem cells(BMSCs),indicating the important role of macrophage polarization in biomaterial-induced osteogenesis.Mechanistically,oncostatin M(OSM)in the macrophage-conditioned medium promoted osteogenic differentiation of BMSCs through the ERK1/2 and JAK3 pathways.This in vivo study further demonstrated that CS bioceramics could stimulate osteogenesis better thanβ-TCP implants by accelerating new bone formation at defective sites in the femur.These findings improve our understanding of immune modulation of CS bioactive ceramics and facilitate strategies to improve the in vitro osteogenesis capability of bone substitute materials. | Panyu Zhou Demeng Xia Zhexin Ni Tianle Ou Yang Wang Hongyue Zhang Lixia Mao Kaili Lin Shuogui Xu Jiaqiang Liu | 2021 | Bioactive Materials2021，6，3： | 5 |
| 3 | Heterostructured graphene quantum dot/WSe2/Si photo-detector with suppressed dark current and improved detectivity显示文摘 | Mengxing Sun Qiyi Fang Dan Xie Yilin Sun Liu Qian Jianlong Xu Peng Xiao Changjiu Teng Weiwei Li Tianling Ren Yanfeng Zhang | 2018 | Nano Research2018，11，6： | 5 |
| 4 | Soil fungal community is more sensitive to nitrogen deposition than increased rainfall in a mixed deciduous forest of China显示文摘Nitrogen(N)deposition and intensified rainfall can strongly affect soil microbial community,but compared with available studies on bacteria,those on soil fungi are quite limited.Here we carried out a field experiment in a mixed deciduous forest of China to study the influences of increased N deposition and rainfall on soil fungi by using quantitative PCR and high-throughput sequencing method.The results demonstrated that(1)N addition significantly increased fungal abundance and alpha diversity(richness,Shannon index and Invsimpson index),changed fungal community composition at OTU level,and marginally increased the relative abundance of Ascomycota and Zygomycota,while water addition showed no remarkable effects on fungal abundance,biodiversity and community composition.(2)N addition significantly increased the richness of saprotrophic fungi and pathogenic fungi,and the relative abundance of saprotrophic fungi,but water addition only slightly increased the abundance of pathogenic fungi.(3)Fungal composition dissimilarity closely correlated with the disparity of soil parameters as a whole.Soil NH_(4)^(+)-N exhibited strong positive correlation with the richness of pathogenic fungi and mycorrhizal fungi,while both soil moisture and NH_(4)^(+)-N tightly correlated with soil fungal abundance and alpha diversity indices.We concluded that in this N-limited but non-water-limited forest ecosystem,N deposition posed stronger effects on soil fungi than increased rainfall,partially mediated by changes in soil properties. | Aihua Zhao Lei Liu Baodong Chen Wei Fu Wei Xie Tianle Xu Wei Zhang Qing Ye Haiyan Feng Shenglei Fu | 2020 | Soil Ecology Letters2020，2，1： | 5 |
| 5 | Promoting effect of Zr on the catalytic combustion of methane over Pd/γ-Al2O3 catalyst显示文摘 | Hongbo NA Tianle ZHU Zhiming LIU Yifei SUN | 2014 | Frontiers of Environmental Science & Engineering2014，8，5： | 4 |
| 6 | Cloning,expression and characterization of serine palmitoyltransferase(SPT)-like gene subunit(LCB2) from marine Emiliania huxleyi virus(Coccolithovirus)显示文摘The authors have isolated and characterized a novel serine palmitoyltransferase(SPT)-like gene in marine Emiliania huxleyi virus(EhV-99B1).The open-reading frame(ORF) of EhV99B1-SPT encoded a protein of 496 amino acids with a calculated molecular mass of 96 kDa and Ip 6.01.The results of sequence analysis showed that there was about 31%-45% identity in amino acid sequence with other organisms.The maximum likelihood phylogenetic tree suggested that the EhV99B1-SPT gene possibly horizontally transferred from the eukaryote.Hydrophobic profiles of deduced amino acid sequences suggested a hydrophobic,globular and membrane-associated protein with five transmembrane domains(TMDs) motifs.Several potential N-linked glycosylation sites were presented in SPT.These results suggested that EhV99B1-SPT was an integral endoplasmic reticulum membrane protein.Despite lower sequence identity,the secondary and three-dimensional structures predicted showed that the 'pocket' structure element composed of 2α-helices and 4βsheets was the catalytic center of this enzyme,with a typical conserved 'TFTKSFG' active site in the N-terminal region and was very close to those of prokaryotic organisms.However,the N-terminal domain of EhV99B1-SPT most closely resembled the LCB2 catalysis subunit and the C-terminal domain most closely resembled the LCB1 regulatory subunit of other organisms which together formed a spherical molecule.This 'chimera' was highly similar to the prokaryotic homologous SPT.For a functional identification,the EhV99B1-LCB2 subunit gene was expressed in Escherichia coli,which resulted in significant accumulation of new sphingolipid in E.coli cells. | LIU Xuhong ZHENG Tianling CAI Yiqin LIU Jingwen | 2012 | Acta Oceanologica Sinica2012，31，6： | 4 |
| 7 | N, F?Codoped Microporous Carbon Nanofibers as Efficient Metal?Free Electrocatalysts for ORR显示文摘Currently, the oxygen reduction reaction(ORR) mainly depends on precious metal platinum(Pt) catalysts. However, Pt-based catalysts have several shortcomings, such as high cost, scarcity, and poor long-term stability. Therefore, development of e cient metal-free electrocatalysts to replace Pt-based electrocatalysts is important. In this study, we successfully prepared nitrogen-and fluorinecodoped microporous carbon nanofibers(N, F-MCFs) via electrospinning polyacrylonitrile/polyvinylidene fluoride/polyvinylpyrrolidone(PAN/PVDF/PVP) tricomponent polymers followed by a hydrothermal process and thermal treatment, which was achieved for the first time in the literature. The results indicated that N, F-MCFs exhibit a high catalytic activity(E_(onset): 0.94 V vs. RHE, E_(1/2): 0.81 V vs. RHE, and electron transfer number: 4.0) and considerably better stability and methanol tolerance for ORR in alkaline solutions as compared to commercial Pt/carbon(Pt/C, 20 wt%) catalysts. Furthermore, in acidic media, N, F-MCFs showed a four-electron transfer pathway for ORR. This study provides a new strategy for in situ synthesis of N, F-MCFs as highly e cient metal-free electrocatalysts for ORR in fuel cells. | Tianle Gong Ruoyu Qi Xundao Liu Hong Li Yongming Zhang | 2019 | Nano-Micro Letters2019，11，1： | 3 |
| 8 | Giant and light modifiable third-order optical nonlinearity in a free-standing h-BN film显示文摘Recently,hexagonal boron nitride(h-BN)has become a promising nanophotonic platform for on-chip information devices due to the practicability in generating optically stable,ultra-bright quantum emitters.For an integrated information-processing chip,high optical nonlinearity is indispensable for various fundamental functionalities,such as all-optical modulation,high order harmonic generation,optical switching and so on.Here we study the third-order optical nonlinearity of free-standing h-BN thin films,which is an ideal platform for on-chip integration and device formation without the need of transfer.The films were synthesized by a solution-based method with abundant functional groups enabling high third-order optical nonlinearity.Unlike the highly inert pristine h-BN films synthesized by conventional methods,the free-standing h-BN films could be locally oxidized upon tailored femtosecond laser irradiation,which further enhances the third-order nonlinearity,especially the nonlinear refraction index,by more than 20 times.The combination of the free-standing h-BN films with laser activation and patterning capability establishes a new promising platform for high performance on-chip photonic devices with modifiable optical performance. | Jun Ren Han Lin Xiaorui Zheng Weiwei Lei Dan Liu Tianling Ren Pu Wang Baohua Jia | 2022 | Opto-Electronic Science2022，1，6： | 3 |
| 9 | Enhanced learning and memory in GAT1 heterozygous mice显示文摘-Aminobutyric 酸(伽马氨基丁酸) 是在中央神经系统的主要禁止的 neurotransmitter。伽马氨基丁酸传播的结束通过膜蛋白质的一个家庭的行动,叫的伽马氨基丁酸 transporters (GAT14 ) 。伽马氨基丁酸系统涉及存储器的调整,这很好被建立。我们的以前的学习显示出老鼠展出了损害马头鱼尾的怪兽依赖者学习和记忆的那同型结合的 GAT1/ 。在鼠标上评估内长的减少的伽马氨基丁酸举起的影响认知行为,学习和异质接合的 GAT1+/ 鼠标的存储器的能力被被动回避范例和莫利斯舞水迷宫检测。洞板范例也被用来在如此的老鼠在焦虑相关的行为或探索行为测量变化。作为 synaptic 粘性的一种形式,长期的 potentiation 在老鼠被记录海马趾的 CA1 区域。我们发现了显示的老鼠增加了的那 GAT1+/ 学习并且记忆,减少的像焦虑的行为,和与野类型、同型结合的 GAT1/ 老鼠相比的最高的 synaptic 粘性。我们的结果建议在 GAT1 活动的中等减小引起在鼠标学习和记忆的改进。 | Jun Shi Youqing Cai Guoxiang Liu Neng Gong Zhenze Liu Tianle Xu Zhugang Wang Jian Fei | 2012 | Acta Biochimica et Biophysica Sinica2012，44，4： | 3 |
| 10 | Monolayer MoS_(2)-based transistors with low contact resistance by inserting ultrathin Al_(2)O_(3)interfacial layer显示文摘Transition metal dichalcogenides(TMDCs)are promising high performance electronic materials due to their interesting semiconductor properties.However,it is acknowledged that the effective electrical contact between TMDCs-layered materials and metals remains one of the major challenges.In this work,the homogeneous monolayer MoS_(2)films with high crystalline quality were prepared by chemical vapor deposition method on SiO2/Si substrates.The back-gate field-effect transistors(FETs)were fabricated by inserting an ultrathin Al_(2)O_(3)interlayer between the metal electrodes and MoS_(2)nanosheets.With the addition of an ultrathin 0.8 nm Al_(2)O_(3)interlayer,the contact resistance decreased dramatically from 59.9 to 1.3 kΩμm and the Schottky barrier height(SBH)dropped from 102 to 27 meV compared with devices without the Al_(2)O_(3)interlayer.At the same time,the switching ratio increased from~106to~108,and both the on-current and field-effect mobility were greatly improved.We find that the ultrathin Al_(2)O_(3)interlayer can not only reduce the SBH to alleviate the Fermi level pinning phenomenon at the interface,but also protect the channel materials from the influence of air and moisture as a covering layer.In addition,the lattice and band structures of Al_(2)O_(3)/MoS_(2)film were calculated and analyzed by first-principles calculation.It is found that the total density of states of the Al_(2)O_(3)/MoS_(2)film exhibits interfacial polarized metals property,which proves the higher carrier transport characteristics.FETs with Al_(2)O_(3)interlayers have excellent stability and repeatability,which can provide effective references for future low power and high performance electronic devices. | CHEN Gang LIN Xin LIU Yuan WANG Fang HU Kai SHAN Xin WU ZeYu ZHANG YuPeng NIE WeiCan ZHONG JiXiang REN TianLing ZHANG KaiLiang | 2023 | Science China(Technological Sciences)2023，66，6： | 2 |
| 11 | Retention of trace elements in coal-fired flue gas by a novel heterogeneous agglomeration technology显示文摘Heterogeneous agglomeration (HA) is a very potential technology for coal-fired flue gas treatment.In this paper,the distribution and migration mechanisms of trace elements (TEs such as Se,As and Pb in CFPPs were studied on a 30,000 m^(3)/hr pilot-scale experimental plat form.The influences of HA on the removal efficiency of gaseous and particulate TEs were well analyzed.The results showed that Se,As and Pb were enriched in fly ash,and their sen sitivity to particle size is quite different.The content of Se was the highest in PM1,reaching193.04 mg/kg at the electrostatic precipitator (ESP) outlet.The average particle size of the total dust before ESP increased significantly from 21.686 to 62.612μm after injecting the heterogeneous agglomeration adsorbent,conducive to its further removal by ESP.In addi tion,the concentrations of gaseous Se,As and Pb in the flue gas decreased after adsorben spray,and accordingly,their contents in the hierarchical particles increased,indicating tha the adsorbent could effectively promote the adsorption of gaseous trace elements in fly ash and reduce the possibility of their escape to the atmosphere.Total concentrations of Se,As and Pb emitted by wet flue gas desulfurization (WFGD) are 0.223,0.668 and 0.076μg/m^(3)which decreased by 59.98%,47.69%and 90.71%,respectively.Finally,a possible HA mecha nism model was proposed,where chemical adsorption,physical condensation and collision agglomeration of gaseous TEs and fine particles with adsorbent droplets occurred to form larger agglomerates. | Yushan Ji Xiangzheng Cui Jingchao Liu Tianle Zhang Shuzhou Wei Junfeng Zhang Yongchun Zhao Junying Zhang | 2023 | Journal of Environmental Sciences2023，，3： | 2 |
| 12 | Effects of virus infection on expression of cell cycle regulatory proteins in the unicellular marine algae Emiliania huxleyi显示文摘The authors have investigated the biochemical events by which marine algal virus infection induces cell cycle arrest. The key G 2 /M-phase regulatory proteins are analyzed by immunobloting in unicel-lular Emiliania huxleyi,suggesting that virus induced cell cycle arrest is related with virus's effect on cyclins and cyclin dependent kinases. E. huxleyi virus(EhV) represses Cdc2/cyclinB complex activity by inhibiting the activity of Cdc2 kinase in a phosphorylation-related manner,blocking host cells G 2 /M checkpoint. Dephosphorylated /inactive Cdc25C combined with up-regulation of Wee1 expression at early infect period appears to be important mechanisms by which EhV represses Cdc2/cyclinB complex activity that is required for entry into M phase. This study has allowed us to confirm that algal virus infection leads to selective activation or inhibition of certain cell-cycle factors,which may play a significant role in establishing a more efficient environment for viral gene expression and DNA replication. | LIU Jingwen Gunnar Bratbak ZHENG Tianling Runar Thyrhaug | 2011 | Acta Oceanologica Sinica2011，30，4： | 2 |
| 13 | A Minireview of Marine Algal Virus-Coccolithoviruses显示文摘Coccolithophorid is unicellular marine microalgae with a global distribution in temperate and sub-temperate oceanic regions and has the ability to produce ‘the coccoliths'. It is considered to be the second most productive calcifying organism on earth and becoming an important factor in the global carbonate cycle. Emiliania huxleyi is one of the only two bloom-forming coccolithophores and becomes a species crucial to the study of global biogeochemical cycles and climate modeling. Coccolithoviruse is a recently discovered group of viruses infecting the marine coccolithophorid E. huxleyi. They are a major cause of coccolithophore bloom termination, and DMSP concentration is increasing in the process of viral lysis. Phylogenetic evidences support that some genes are functional both in E. huxleyi and its virus(Eh V). Horizontal gene transfer(HGT) of multiple functionally coupled enzymes occurs in E. huxleyi and its DNA virus Eh V has been confirmed, which contributes to the diversification and adaptation of plankton in the oceans and also critically regulates virus-host infection by allowing viruses to control host metabolic pathways for their replication. Therefore, it is of particular interest to understand this host-virus interaction. On this issue, we have made a minireview of coccolithoviruses focusing on the basic characteristics, phylogenesis, horizontal gene transfer and the interaction between the host and its viruses, as well as its important role in global biogeochemical cycling. | LIU Jingwen XU Miaomiao ZHENG Tianling | 2015 | Journal of Ocean University of China2015，14，2： | 2 |
| 14 | A novel polishing technology for epoxy resin based on 355 nm UV laser显示文摘The electromagnetic shielding film has drawn much attention due to its wide applications in the integrated circuit package,which demands a high surface quality of epoxy resin.However,gaseous Cu will splash and adhere to epoxy resin surface when the Cu layer in PCB receives enough energy in the process of laser cutting,which has a negative effect on the quality of the shielding film.Laser polishing technology can solve this problem and it can effectively improve the quality of epoxy resin surface.The paper studies the mechanism of Cu powder spraying on the compound surface by 355 nm ultraviolet(UV) laser,including the parameters of laser polishing process and the remains of Cu content on compound surface.The results show that minimal Cu content can be realized with a scanning speed of 700 mm/s,a laser frequency of 50 kHz and the distance between laser focus and product top surface of-1.3 mm.This result is important to obtain an epoxy resin surface with high quality. | Xinling Meng | 2017 | Journal of Semiconductors2017，38，5： | 1 |
| 15 | Improved thermal conductivity of epoxy composites using a hybrid multi-walled carbon nanotube/micro-SiCp filler显示文摘 | Zhou Tianle Wang Xin Liu Xiaoheng | 2010 | Carbon2010，48，4： | 1 |
| 16 | CmNF-YB8 affects drought resistance in chrysanthemum by altering stomatal status and leaf cuticle thickness显示文摘Drought is a major abiotic stress that limits plant growth and development.Adaptive mechanisms have evolved to mitigate drought stress,including the capacity to adjust water loss rate and to modify the morphology and structure of the epidermis.Here,we show that the expression of CmNF-YB8,encoding a nuclear factor Y(NF-Y)B-type subunit,is lower under drought conditions in chrysanthemum(Chrysanthemum morifolium).Transgenicchrysanthemumlinesinwhich transcript levels of CmNF-YB8 were reduced by RNA interference(CmNF-YB8-RNAi)exhibited enhanced drought resistance relative to control lines,whereas lines overexpressing CmNF-YB8(CmNF-YB8-OX)were less tolerant to drought.Compared to wild type(WT),CmNF-YB8-RNAi plants showed reduced stomatal opening and a thicker epidermal cuticle that correlated with their water loss rate.We also identified genes involved in stomatal adjustment(CBLinteracting protein kinase 6,CmCIPK6)and cuticle biosynthesis(CmSHN3)that are more highly expressed in CmNF-YB8-RNAi lines than in WT,CmCIPK6 being a direct downstream target of CmNF-YB8.Virus-induced gene silencing of CmCIPK6 or CmSHN3 in the CmNFYB8-RNAi background abolished the effects of CmNF-YB8-RNAi on stomatal closure and cuticle deposition,respectively.CmNF-YB8 thus regulates CmCIPK6 and CmSHN3 expression to alter stomatal movement and cuticle thickness in the leaf epidermis,thereby affecting drought resistance. | Tianle Wang Qian Wei Zhiling Wang Wenwen Liu Xin Zhao Chao Ma Junping Gao Yanjie Xu Bo Hong | 2022 | Journal of Integrative Plant Biology2022，64，3： | 1 |
| 17 | Improved thermal conductivity of epoxy composites using a hybrid multi-walled carbon nanotube/micro-SiC filler 显示文摘 | Zhou Tianle Wang Xin Liu Xiaoheng | 2010 | Car- bon2010，48，4： | 1 |
| 18 | Promoting effect of sol-gel method and pre-treatment on the activity of SnO2/Al2O3 catalyst for NO reduction by propene显示文摘 | Zhiming Liu Jiming Hao Lixin Fu Tianle Zhu Junhua Li Xiangyu Cui | 2003 | Reaction Kinetics and Catalysis Letters2003，，1： | 1 |
| 19 | Optimizing mechanical properties of magnesium alloys by philosophy of thermo-kinetic synergy:Review and outlook显示文摘Although several strategies(including grain refinement,texture adjustment,precipitation hardening,etc.)have been verified to effectively improve the mechanical properties of lightweight magnesium(Mg)alloys,considerable efforts are still needed to be made to comprehensively understand the potential mechanisms controlling complex microstructures and deformation behaviors exhibited by the hexagonal close-packed host lattice of Mg,thus assisting the rational design of materials at a more physical level.As the cornerstone of this review,a universal rule,the so-called synergy of thermodynamics and kinetics(i.e.,thermo-kinetic diversity,correlation and connectivity),including a recently proposed theory of generalized stability(GS),is introduced to deepen our understanding on common behaviors in Mg alloys(i.e.,deformations(slip and twining modes),phase transformations(especially for precipitations)and interactions in between)at a new perspective.Guided by the GS theory,typical cases for Mg alloys design are qualitatively evaluated to reemphasize the traditional strengthening and toughening strategies mentioned above and to illuminate their exquisite coordination for breaking through the trade-off relationship between strength and ductility,corresponding to a typical thermo-kinetic pair(i.e.,high driving force(ΔG)-high GS).To produce the Mg alloys with superior strength-ductility balances,the potential capacity of this GS theory for guiding processing path design is discussed,finally。 | Tianle Wang Feng Liu | 2022 | Journal of Magnesium and Alloys2022，10，2： | 1 |
| 20 | Improved thermal conductivity o1 epoxy composites using a hybrid multi-walled carbon nanotube/micro-SiC filler 显示文摘 | ZHOU Tianle WANG Xin LIU Xin-hua | 2010 | Carbon2010，48，4： | 1 |
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