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| 1 | Anaerobic benzene biodegradation by a pure bacterial culture of Bacillus cereus under nitrate reducing conditions显示文摘A pure culture using benzene as sole carbon and energy sources was isolated by screening procedure from gasoline contaminated soil.The analysis of the 16S rDNA gene sequence,morphological and physiological characteristics showed that the isolated strain was a member of genus Bacillus cereus.The biodegradation performance of benzene by B.cereus was evaluated,and the results showed that benzene could be efficiently biodegraded when the initial benzene concentration was below 150 mg/L.The metabolites of anaerobic nitrate-dependent benzene oxidation by strain B.cereus were identified as phenol and benzoate.The results of substrate interaction between binary combinations for benzene,phenol and benzoate showed that the simultaneous presence of benzene stimulated the degradation of benzoate,whereas the addition of benzene inhibited the degradation of phenol.Benzene degradation by B.cereus was enhanced by the addition of phenol and benzoate,the enhanced effects were more pronounced at higher concentration.To our knowledge,this is the first report that the isolated bacterial culture of B.cereus can efficiently degraded benzene under nitrate reducing conditions. | Junfeng Dou Aizhong Ding Xiang Liu Yongchao Du Dong Deng Jinsheng Wang | 2010 | Journal of Environmental Sciences2010，22，5： | 6 |
| 2 | Structural deformation, metallogenic epoch and genetic mechanism of the Woxi Au-Sb-W deposit, Western Hunan Province, South China显示文摘The remobilization,migration,precipitation,and enrichment of ore-forming elements are closely related to structures.Therefore,detailed regional and ore-field structural analyses are critical for determining the genesis of a mineral deposit.The Jiangnan Orogenic Belt(JOB)is an important gold polymetallic metallogenic belt in South China,which is characterized by multiple periods of gold mineralization in the Paleozoic and Mesozoic.However,the genesis of these gold polymetallic deposits is still not well understood due to a lack of systematic research on the regional geology,ore-controlling structures and metallogenic mechanism.In this study,a detailed structural survey at the surface and in the subsurface tunnels was conducted on the Woxi Au-Sb-W deposit,the genesis of which is relatively controversial among the gold polymetallic deposits in the JOB due to poor structural constraints.In addition,a wolframite U-Pb dating was carried out to further constrain the relationship between structures and mineralization.Based on the results of these studies,together with those from previous studies,it is proposed that the Woxi deposit and surrounding areas likely underwent six periods of regional deformation,which are constrained in time and geodynamic setting.Furthermore,we present a systematic discussion on the roles of ore-controlling structures in the transportation,distribution,and deposition of ore-forming elements and localization of orebodies.According to the wolframite dating results,structural analyses,and previous data,we propose that the Woxi Au-Sb-W deposit was formed in two stages during the Yanshanian:a W(wolframite)-Au mineralization stage at ca.140 Ma and an Au-Sb-W(scheelite)mineralization stage at<130 Ma.These mineralizing events are interpreted to have a tight relationship with tectonic reactivation,and the ore-forming fluids were derived from deep sources,including those of magmatic or metamorphic origins.The Woxi deposit can therefore be classified as an“intracontinental reactivation-type”,and the mineralization is related to lithospheric extension caused by plate retreat,retention,and delamination following the cessation of westward subduction of the Paleo-Pacific Plate beneath the East Asian continent. | Bin LI Deru XU Daoyuan BAI Guoxiang CHI Junfeng DAI Cheng GAO Teng DENG Shaohao ZOU Wen MA Guojian WANG Yuexin LING Guangqian ZENG Yinmin LI | 2022 | Science China Earth Sciences2022，65，12： | 2 |
| 3 | Genetic causes of oil-rich and oil-poor reservoirs: Implications from two Cenozoic basins in the eastern North China Craton显示文摘The Bohai Bay and Hehuai(southern North China) rift basins in the eastern part of the North China Craton are southnorth-adjacent. They have shown synchronous evolutionary processes, and possess generally identical superficial and shallow structural characteristics as well as similar basin areas. However, there is a large difference in the richness of oil resources between the two basins. The Bohai Bay Basin has extremely abundant oil reserves, while commercial oil reserves have not been found in the Hehuai Basin. The deep tectonic structures, magmatic activities, and modern and paleo-geothermal fields of the two basins are significantly different. Compared with the Hehuai Basin, the Bohai Bay Basin has a thinner crust and more complex structure with multiple low-velocity layers. It is also characterized by intense magmatic activity, high modern and paleogeothermal fields, frequent seismic activity, and active deep interactions, small effective elastic thickness of the isotropic lithosphere, and shorter balanced transformation wavelength of the lithosphere with a high likelihood of local compensation. The Hehuai Basin has a simple deep structure and homogeneous crustal composition, with a high likelihood of regional compensation. The characteristics of the deep structures mentioned above are generally similar to those of the southern part of the stable Ordos Basin, except for the smaller crust thickness. This indicates the presence of differences in Mesozoic destruction between the southern and northern zones in the eastern part of the North China Craton. The northern zone was subjected to significant destruction, while the southern zone was subjected to modifications, primarily in the form of local changes in the structures and/or properties of the crust or lithospheric mantle, with the overall structure and stability of the craton kept intact. The formation of high-quality source rock is primarily influenced by the abnormal flourishment of organisms in water bodies during the syndepositional period, and is also strongly associated with the high geothermal setting of basins and nutrients from hydrothermal solutions and volcanoes. In other words, it is mainly controlled by deep processes and deep-major fault activity. The differences in the deep structures and modern and paleo geothermal fields of the two basins correspond to the difference in richness of oil resources, suggesting that there is an important internal or causal relationship between the two aspects. This viewpoint coincides with the conditions and environments required for the development of high-quality source rock in hydrocarbon-rich basins(sags)in China and other countries, and is evidenced by the modern lake basin of the East African Rift. A new hydrocarbon generation model is proposed in this work: petroleum is a comprehensive product of the integration of bioenergy, thermal energy, and other related energies(such as chemical and kinetic energy) and their interactions; the degree of richness of petroleum is generally controlled by the regional tectonic structure, thermal environment, and deep processes; nonmarine basins or depressions with abundant resources are closely related to active deep processes, intense exchange of material between the deep and shallow layers, participation of external hydrocarbons, and energy integration and conversion. | Chiyang LIU Lei HUANG Dongdong ZHANG Junfeng ZHAO Yu DENG Pei GUO Yijian HUANG &Jianqiang WANG | 2018 | Science China Earth Sciences2018，61，12： | 2 |
| 4 | Assessment of fatigue damage in solid plates through the ultrasonic Lamb wave approach显示文摘Changes(degradations) in the mechanical properties of solid plates induced by cyclic fatigue loading will influence the features of ultrasonic Lamb wave propagation,such as dispersion and attenuation.This paper has qualitatively analyzed the feasibility of using the amplitude-frequency characteristics and the stress wave factors(SWFs) of ultrasonic Lamb wave propagation to assess fatigue damage in solid plates.Liquid wedge transducers located on the surface of solid plates tested are used to generate and detect the Lamb wave signals.Based on the Ritec-SNAP ultrasonic measurement system,the experimental setup for assessing the degree of fatigue damage in solid plates using ultrasonic Lamb wave approach has been established.For several rolled aluminum sheets subjected to tension-tension cyclic loading,the experimental examinations have been performed for the relationships between the amplitude-frequency characteristics of ultrasonic Lamb wave propagation and the numbers of loading cycles(denoted by N),as well as the correlations between the Lamb wave SWFs and N.The experimental results show that the Lamb wave SWFs decrease monotonously and sensitively with the increment of cycles of fatigue loading.Based on the correlations between the Lamb wave SWFs and N,it is further verified that ultrasonic Lamb wave propagation combined with the Lamb wave SWFs can be used to effectively assess early fatigue damage in solid plates. | DENG MingXi * & PEI JunFeng Department of Physics,Logistics Engineering University,Chongqing 401331,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，7： | 2 |
| 5 | Simultaneous analysis of three-dimensional percolation models显示文摘 | Xiao Xu Junfeng Wang Jian-Ping Lv Youjin Deng | 2014 | Frontiers of physics2014，9，1： | 2 |
| 6 | Strontium-incorporated bioceramic scaffolds for enhanced osteoporosis bone regeneration显示文摘The restoration of bone defects caused by osteoporosis remains a challenge for surgeons.Strontium ranelate has been applied in preventative treatment approaches due to the biological functions of the trace element strontium(Sr).In this study,we aimed to fabricate bioactive scaffolds through Sr incorporation based on our previously developed modified amino-functional mesoporous bioactive glass(MBG)and to systematically investigate the bioactivity of the resulting scaffold in vitro and in vivo in an osteoporotic rat model.The results suggested that Sr-incorporated amino-functional MBG scaffolds possessed favorable biocompatibility.Moreover,with the incorporation of Sr,osteogenic and angiogenic capacities were upregulated in vitro.The in vivo results showed that the Sr-incorporated amino-functional MBG scaffolds achieved better bone regeneration and vessel formation.Furthermore,bioinformatics analysis indicated that the Sr-incorporated amino-functional MBG scaffolds could reduce reactive oxygen species levels in bone marrow mesenchymal stem cells in the osteoporotic model by activating the cAMP/PKA signaling pathway,thus playing an anti-osteoporosis role while promoting osteogenesis.This study demonstrated the feasibility of incorporating trace elements into scaffolds and provided new insights into biomaterial design for facilitating bone regeneration in the treatment of osteoporosis. | Qianju Wu Longwei Hu Ran Yan Junfeng Shi Hao Gu Yuwei Deng Ruixue Jiang Jin Wen Xinquan Jiang | 2022 | Bone Research2022，10，4： | 1 |
| 7 | Preparation of CaO–Al 2 O 3 –SiO 2 glass ceramics from coal gangue显示文摘 | Mei Yang Zhixing Guo Yinsheng Deng Xueling Xing Kehui Qiu Jianping Long Junfeng Li | 2011 | International Journal of Mineral Processing2011，，： | 1 |
| 8 | Controllable growth of graphene by changing the microstructure of Fe-Cr- Ni catalyst显示文摘 | Lu Zhanling Deng Jicai Wang Junfeng | 2012 | Physica status solidi2012，9，1： | 1 |
| 9 | Genome Mining and Biosynthesis Study of a Type B Linaridin Reveals a Highly Versatileα-N-Methyltransferase显示文摘Linaridins are a small but growing family of natural products belonging to the ribosomally synthesized and post-translationally modified peptide(RiPP)superfamily.In this study,a genome mining approach led to the identification of a novel linaridin,mononaridin(MON),from Streptomyces monomycini.In-frame deletion genetic knockout studies showed that,in addition to many genes essential for MON biosynthesis,monM encodes an S-adenosyl methionine(SAM)-dependentα-N-methyltransferase that is responsible for installing two methyl groups in the MON N-terminus.Besides SAM,MonM also accepts ethyl-SAM and allyl-SAM,in which the methyl of SAM is replaced by an ethyl and an allyl,respectively.We showed that ethyl-SAM and allyl-SAM have distinct reactivities in MonM catalysis,and this observation was further investigated in detail by density functional theory(DFT)calculations.Remarkably,MonM acts efficiently on nisin,a prototypic lantibiotic that is structurally very different from the native substrate,and the ability of MonM to transfer an allyl group to the nisin N-terminus allowed production of a fluorescently labeled nisin,which can be further used in microscopic cell analysis.Our studies provide new insights into linaridin biosynthesis and demonstrate the potential of linaridin methyltransferases in bioengineering applications. | Fangting Wang Wanqing Wei Junfeng Zhao Tianlu Mo Xin Wang Xuedong Huang Suze Ma Shu Wang Zixin Deng Wei Ding Yong Liang Qi Zhang | 2021 | CCS Chemistry2021，3，3： | 1 |
| 10 | Substrate interactions during anaerobic biodegradation of BTEX by the mixed cultures under nitrate reducing conditions显示文摘 | Dou Junfeng Liu Xiang Deng Dong | 2008 | Journal of Hazardous Materials2008，158，23： | 1 |
| 11 | Large grain-boundary magnetoresistance in MnFe2O4 nanop- article compact 显示文摘 | Wang Junfeng Deng Hong Li Yadong | 2008 | Journal of Magnetism and Magnet- ic Materials2008，320，34： | 1 |
| 12 | A new method for the detection of ATP using a quantum-dot-tagged aptamer显示文摘 | Zhang Chen Guang Li Lan Zhang Junfeng Jiang Zhao Li Zhihui Peng Le Deng | 2008 | Analytical and Bioanalytical Chemistry2008，，6： | 1 |
| 13 | Enhanced protective immunity against SARS-CoV-2 elicited by a VSV vector expressing a chimeric spike protein显示文摘SARS-CoV-2 and SARS-CoV are genetically related coronavirus and share the same cellular receptor ACE2.By replacing the VSV glycoprotein with the spikes(S)of SARS-CoV-2 and SARS-CoV,we generated two replication-competent recombinant viruses,rVSVSARS-CoV-2 and rVSV-SARS-CoV.Using wild-type and human ACE2(hACE2)knock-in mouse models,we found a single dose of rVSV-SARS-CoV could elicit strong humoral immune response via both intranasal(i.n.)and intramuscular(i.m.)routes.Despite the high genetic similarity between SARS-CoV-2 and SARS-CoV,no obvious cross-neutralizing activity was observed in the immunized mice sera.In macaques,neutralizing antibody(NAb)titers induced by one i.n.dose of rVSV-SARS-CoV-2 were eight-fold higher than those by a single i.m.dose.Thus,our data indicates that rVSV-SARS-CoV-2 might be suitable for i.n.administration instead of the traditional i.m.immunization in human.Because rVSV-SARS-CoV elicited significantly stronger NAb responses than rVSV-SARS-CoV2 in a route-independent manner,we generated a chimeric antigen by replacing the receptor binding domain(RBD)of SARS-CoV S with that from the SARS-CoV-2.rVSV expressing the chimera(rVSV-SARS-CoV/2-RBD)induced significantly increased NAbs against SARS-CoV-2 in mice and macaques than rVSV-SARS-CoV-2,with a safe Th1-biased response.Serum immunized with rVSV-SARS-CoV/2-RBD showed no cross-reactivity with SARS-CoV.hACE2 mice receiving a single i.m.dose of either rVSV-SARS-CoV-2 or rVSV-SARSCoV/2-RBD were fully protected against SARS-CoV-2 challenge without obvious lesions in the lungs.Our results suggest that transplantation of SARS-CoV-2 RBD into the S protein of SARS-CoV might be a promising antigen design for COVID-19 vaccines. | Hongyue Li Yuhang Zhang Dong Li Yong-Qiang Deng Hongde Xu Chaoyue Zhao Jiandong Liu Dan Wen Jianguo Zhao Yongchun Li Yong Wu Shujun Liu Jiankai Liu Junfeng Hao Fei Yuan Shuguang Duo Cheng-Feng Qin Aihua Zheng | 2021 | Signal Transduction and Targeted Therapy2021，6，12： | 1 |
| 14 | Body-area sensor network featuring micropyramids for sports healthcare显示文摘Monitoring physiological signals of the human body can provide extremely important information for sports healthcare,preventing injuries and providing efficient guidance for individual sports.However,the signals related to human healthcare involve both subtle and vigorous signals,making it difficult for a sensor to satisfy the full-scale monitoring at the same time.Here,a novel conductive elastomer featuring homogeneously micropyramid-structured PDMS/CNT composite is used to fabricate highperformance piezoresistive sensors by a drop-casting method.Benefiting from the significant increase in the contact area of microstructure during deformation,the flexible sensor presents a broad detection range(up to 185.5 kPa),fast response/recovery time(44/13 ms),ultrahigh sensitivity(242.4 kPa–1)and excellent durability over 8,000 cycles.As a proof of concept,the as-fabricated pressure sensor can be used for body-area sports healthcare,and enable the detection of full-scale pressure distribution.Considering the fabulous sensing performance,the sensor may potentially become promising in personal sports healthcare and telemedicine monitoring. | Shenglong Wang Weili Deng Tao Yang Guo Tian Da Xiong Xiao Xiao Hongrui Zhang Yue Sun Yong Ao Junfeng Huang Jun Chen Weiqing Yang | 2023 | Nano Research2023，16，1： | 1 |
| 15 | Role of Hematite-Rich Host Rocks in the Gold Mineralization of the Woxi Au(-Sb-W) Ore Deposit in Western Jiangnan Orogen of South China显示文摘The formation of many hydrothermal gold deposits is closely related to iron-rich rocks. The host rocks of the Madiyi Formation of the Mid-to Late Neoproterozoic Banxi Group for the Woxi Au(-Sb-W) deposit, which is located in western Hunan Province of the western Jiangnan Orogen, South China, is rich in hematite, which provides a good example for studying the relationship between the formation of gold deposit and iron-rich rocks. Field investigation and petrographic observation on the unaltered, weakly altered and strongly altered rocks demonstrate that the bleaching is caused by a combination of carbonatization, sulfidation and sericitization. Mass balance calculation suggests that, during decolourization there is no change in TFe_(2)O_(3), while FeO is gained and Fe_(2)O_(3)is lost. Geochemical modeling found that Au was mainly present as AuHS(aq) and Au(HS)-2, and that the water-rock interactions decreased the sulfur fugacity which destroyed the stability of such aqueous complexes. Combined with the locally occurred native gold in quartz veins, it is concluded that the major gold precipitation mechanisms are sulfidation and fluid boiling. Based on previous geochronological and geochemical research further gold mineralization is proposed to be generated by deep sourced magmatic or metamorphic fluid migrated upward along the Woxi fault, and the iron-rich Madiyi Formation is the idea chemical trap for gold deposition. The decrease of sulfur contents caused by fluid-rock interactions and fluid boiling are the major mechanisms for gold mineralization. | Jian Zhang Teng Deng Deru Xu Junfeng Dai Zenghua Li Bin Li Yueqiang Zhou | 2023 | Journal of Earth Science2023，34，5： | 1 |
| 16 | Inhibition of reporter gene and lridovirus-tiger frog virus in fish cell by RNA interference 显示文摘 | Xie Junfeng Lu Ling Deng Min | 2005 | Virology2005，338，： | 1 |
| 17 | Electron emission characteristics of C-BN films deposited by electrophoresis显示文摘 | Yu Lijuan Li Junfeng Deng Ning | 1999 | Ultramicroscopy1999，79，14： | 1 |
| 18 | Effective diffusivity of oxygen in the ash layer of Huadian oil shale semicoke显示文摘Diffusion of oxygen in the ash layer usually dominated the combustion of oil shale semicoke particles due to the high ash content.Thus,effective diffusivity of oxygen in the ash layer was a crucial parameter worthy of careful investigation.In this paper,the effective diffusivity of oxygen in the ash layer of Huadian oil shale semicoke was measured directly using an improved Wicke-Kallenbach diffusion apparatus.The experimental results showed that higher temperature would lead to a higher effective diffusivity and a thicker ash layer had the negative effect.Especially,the effective diffusivity along the direction perpendicular to bedding planes was much lower than that along the direction parallel to bedding planes.In addition,an effective diffusivity model was developed,which could be used to describe the mass transfer of oxygen in the ash layer of oil shale semicoke. | Yiqun HUANG Yiran LI Man ZHANG Boyu DENG Hao KONG Junfeng WANG Junfu LYU Hairui YANG Lingmei WANG | 2021 | Frontiers in Energy2021，15，2： | 0 |
| 19 | Polypropylene microplastics alter the cadmium adsorption capacity on different soil solid fractions显示文摘Microplastics(MPs)are widely present in a variety of environmental media and have attracted more and more attention worldwide.However,the effect of MPs on the interaction between heavy metals and soil,especially in soil solid fraction level,is not well understood.In this study,batch experiments were performed to investigate the adsorption characteristics of Cd in bulk soil and three soil solid fractions(i.e.particulate organo matter(POM),organic-mineral compounds(OMC),and mineral)with or without polypropylene(PP)MPs.The results showed that the addition of PP-MPs reduced the Cd adsorption capacity of the bulk soil in aqueous solution,and the effects varied with PP-MPs dose and aging degree.Whereas,the responses of the three fractions to PP-MPs were different.In presence of PP-MPs,the POM and OMC fractions showed negative adsorption effects,while the mineral fraction showed positive adsorption.For the bulk soil,POM and OMC fractions,the adsorption isotherm fitted to the Langmuir model better than the Freundlich model,whereas,the Freundlich isotherm model was more fitted for the mineral fraction.Combined with the comprehensive analysis of the partitioning coefficients,XRD and FTIR results,it was found that OMC fraction extremely likely play a leading role in the bulk soil adsorption of Cd in this study.Overall,the effect of MPs on adsorption capacity of the bulk soil for Cd may be determined by the proportion of POM,OMC,and mineral fractions in the soil,but further confirmation is needed. | Xianying Ma Xinhui Zhou Mengjie Zhao Wenzhuo Deng Yanxiao Cao Junfeng Wu Jingcheng Zhou | 2022 | Frontiers of Environmental Science & Engineering2022，16，1： | 0 |
| 20 | Design,synthesis,and bioassay of 5-epi-aminoglycosides显示文摘For the purpose of seeking new antibiotics,researchers usually modify the already-existing ones.However,this strategy has been extensively used and is close to its limits,especially in the case of aminoglycosides,and it is difficult to find a proper aminoglycoside antibiotic for novel modification.In this paper,we reported the design,synthesis,and evaluation of a series of 5-epi-neamine derivatives based on the structural information of bacterial 16S RNA A-site binding with aminoglycosides.Bioassay results showed that our design strategy was feasible.Our study offers a new way to search for structurally novel aminoglycosides.Meanwhile,our study provides valuable structure-activity relationship information,which will lead to better understanding and exploitation of the drug target,and improved development of new aminoglycoside antibiotics. | YAN Ribai NIU Youhong LIU Yuheng DENG Junfeng YE Xinshan | 2022 | Chinese Journal of Natural Medicines2022，20，11： | 0 |
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