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| 1 | Field observation of total dissolved gas supersaturation of high-dams显示文摘One of the possible negative environmental effects of hydropower stations is the supersaturation of total dissolved gas (TDG) downstream of high-dams,which can lead to gas bubble disease or even death of fish. By taking the TDG as the main study object,the paper launched the TDG field observations on Zipingpu,Three Gorges,Ertan,Manwan,Dachaoshan,Gongzui and Ertan dams in China. The factors affecting TDG generation and dissipation were explored. Energy dissipation structures,spill rates and operation patterns were the main factors causing TDG supersaturation. TDG saturations are essentially the same in the hydro-electric tail water and in the upper reaches,so hydro-electric tail water can be less TDG supersaturated through mixing downstream. The main factors affecting the dissipation process of the supersaturated TDG were tributary convergence,water depth and turbulence. TDG supersaturation was unevenly distributed in both the vertical and transverse directions. This study is important because it adds to the accumulating experience of TDG field observations of dam projects in China,and because it objectively and impartially evaluates the impacts of supersaturated TDG. The study also provides field data and references for future studies of TDG supersaturation caused by high-dams. | QU Lu LI Ran LI Jia LI KeFeng DENG Yun | 2011 | Science China(Technological Sciences)2011,54,1: | 16 |
| 2 | Poly(methyl methacrylate) bone cement composited with mineralized collagen for osteoporotic vertebral compression fractures in extremely old patients显示文摘To examine the clinical effects of a new bone cement composed of poly(methyl methacrylate)(PMMA)and mineralized collagen(MC)compared with pure PMMA bone cement in treating osteoporotic vertebral compression fractures(OVCFs)in patients aged over 80.In all,32 cases using pure PMMA bone cement and 31 cases using MC-modified PMMA(MC-PMMA)bone cement for OVCFs between June 2014 and March 2016 were screened as PMMA group and MC-PMMA group,respectively,with an average age of over 80.The operation duration,intraoperative blood loss,hospital stay,oswestry disability index(ODI),visual analogue scale(VAS),anterior vertebral height(AVH),intermediate vertebral height(IVH)and posterior vertebral height(PVH)of injured vertebrae,vertebral computed tomography value,re-fracture rate of adjacent vertebrae,correction rate of spinal kyphotic angle and wedge-shaped vertebra angle and surgical complications were compared between the two groups.In the early post-operative period,the VAS,ODI,AVH and IVH in MC-PMMA group were comparable to those in the traditional PMMA group.Moreover,the MC-PMMA group showed better effects compared with the PMMA group 12months after surgery.Thus,this new bone cement has superior clinic effects in the long term. | Kefeng Luo Guoqiang Jiang Jinjin Zhu Bin Lu Jiye Lu Kai Zhang Xiumei Wang Fu-Zhai Cui | 2020 | Regenerative Biomaterials2020,7,1: | 8 |
| 3 | Micro/nano-structured TiO2 surface with dual-functional antibacterial effects for biomedical applications显示文摘Implant-associated infections are generally difficult to cure owing to the bacterial antibiotic resistance which is attributed to the widespread usage of antibiotics.Given the global threat and increasing influence of antibiotic resistance,there is an urgent demand to explore novel antibacterial strategies other than using antibiotics.Recently,using a certain surface topography to provide a more persistent antibacterial solution attracts more and more attention.However,the clinical application of biomimetic nano-pillar array is not satisfactory,mainly because its antibacterial ability against Gram-positive strain is not good enough.Thus,the pillar array should be equipped with other antibacterial agents to fulfill the bacteriostatic and bactericidal requirements of clinical application.Here,we designed a novel model substrate which was a combination of periodic micro/nano-pillar array and TiO2 for basically understanding the topographical bacteriostatic effects of periodic micro/nano-pillar array and the photocatalytic bactericidal activity of TiO2.Such innovation may potentially exert the synergistic effects by integrating the persistent topographical antibacterial activity and the non-invasive X-ray induced photocatalytic antibacterial property of TiO2 to combat against antibiotic-resistant implant-associated infections.First,to separately verify the topographical antibacterial activity of TiO2 periodic micro/nano-pillar array,we systematically investigated its effects on bacterial adhesion,growth,proliferation,and viability in the dark without involving the photocatalysis of TiO2.The pillar array with sub-micron motif size can significantly inhibit the adhesion,growth,and proliferation of Staphylococcus aureus(S.aureus)and Escherichia coli(E.coli).Such antibacterial ability is mainly attributed to a spatial confinement size-effect and limited contact area availability generated by the special topography of pillar array.Moreover,the pillar array is not lethal to S.aureus and E.coli in 24 h.Then,the X-ray induced photocatalytic antibacterial property of TiO2 periodic micro/nano-pillar array in vitro and in vivo will be systematically studied in a future work.This study could shed light on the direction of surface topography design for future medical implants to combat against antibiotic-resistant implant-associated infections without using antibiotics. | Xiang Ge Chengzu Ren Yonghui Ding Guang Chen Xiong Lu Kefeng Wang Fuzeng Ren Meng Yang Zhuochen Wang Junlan Li Xinxin An Bao Qian Yang Leng | 2019 | Bioactive Materials2019,4,1: | 8 |
| 4 | Mussel-inspired nanozyme catalyzed conductive and self-setting hydrogel for adhesive and antibacterial bioelectronics显示文摘Adhesive hydrogels have broad applications ranging from tissue engineering to bioelectronics;however,fabricating adhesive hydrogels with multiple functions remains a challenge.In this study,a mussel-inspired tannic acid chelated-Ag(TA-Ag)nanozyme with peroxidase(POD)-like activity was designed by the in situ reduction of ultrasmall Ag nanoparticles(NPs)with TA.The ultrasmall TA-Ag nanozyme exhibited high catalytic activity to induce hydrogel self-setting without external aid.The nanozyme retained abundant phenolic hydroxyl groups and maintained the dynamic redox balance of phenol-quinone,providing the hydrogels with long-term and repeatable adhesiveness,similar to the adhesion of mussels.The phenolic hydroxyl groups also afforded uniform distribution of the nanozyme in the hydrogel network,thereby improving its mechanical properties and conductivity.Furthermore,the nanozyme endowed the hydrogel with antibacterial activity through synergistic effects of the reactive oxygen species generated via POD-like catalytic reactions and the intrinsic bactericidal activity of Ag.Owing to these advantages,the ultrasmall TA-Ag nanozyme-catalyzed hydrogel could be effectively used as an adhesive,antibacterial,and implantable bioelectrode to detect bio-signals,and as a wound dressing to accelerate tissue regeneration while preventing infection.Therefore,this study provides a promising approach for the fabrication of adhesive hydrogel bioelectronics with multiple functions via mussel-inspired nanozyme catalysis. | Zhanrong Jia Xuanhan Lv Yue Hou Kefeng Wang Fuzeng Ren Dingguo Xu Qun Wang Kelong Fan Chaoming Xie Xiong Lu | 2021 | Bioactive Materials2021,6,9: | 7 |
| 5 | CKIP-1 regulates macrophage proliferation by inhibiting TRAF6-mediated Akt activation显示文摘巨噬细胞在开发,动态平衡,织物修理和免疫起枢轴的作用。巨噬细胞增长被刺激殖民地的因素(M-CSF ) 导致了 Akt 发信号的巨噬细胞支持;然而,这个过程怎么被终止,仍然保持不清楚。这里,我们作为巨噬细胞增长的一个新奇禁止者识别酷蛋白 kinase 2-interacting protein-1 (CKIP-1 ) 。在放松巨噬细胞, CKIP-1 是在由组成地活跃的 GSK3β 的丝氨酸 342 点的 phosphorylated;, Akt 的下游的目标。这 phosphorylation 触发 CKIP-1 的 polyubiquitination 和 proteasomal 降级。在 M-CSF 刺激之上, Akt 被 CSF-1R-PI3K 激活然后使 GSK3β 失去活性;,导致 CKIP-1 和 β 的稳定; -catenin 蛋白质。β -catenin 包括 cyclin D 和 c-Myc 支持增长基因的表示。CKIP-1 与 TRAF6,为连接 K63 的 ubiquitination 要求的 ubiquitin ligase 和 Akt 的血浆膜招募交往,并且终止调停 TRAF6 的 Akt 激活。由这个工具, CKIP-1 在 M-CSF 刺激以后在迟了的阶段明确地禁止巨噬细胞增长。而且, CKIP-1 缺乏在老鼠自发地开发的 vitro 和 CKIP-1 −/− 导致增加的增长和巨噬细胞的减少的 apoptosis 巨噬细胞主导的脾大和 myeloproliferation。一起,这些数据证明 CKIP-1 由禁止调停 TRAF6 的 Akt 激活在巨噬细胞动态平衡的规定起一个关键作用。 | Luo Zhang Yiwu Wang Fengjun Xiao Shaoxia Wang Guichun Xing Yang Li Xiushan Yin Kefeng Lu Rongfei Wei Jiao Fan Yuhan Chen Tao Li Ping Xie Lin Yuan Lei Song Lanzhi Ma Lujing Ding Fuchu He Lingqiang Zhang | 2014 | Cell Research2014,24,6: | 7 |
| 6 | Mussel‑Inspired Redox‑Active and Hydrophilic Conductive Polymer Nanoparticles for Adhesive Hydrogel Bioelectronics显示文摘Conductive polymers(CPs)are generally insoluble,and developing hydrophilic CPs is significant to broaden the applications of CPs.In this work,a mussel-inspired strategy was proposed to construct hydrophilic CP nanoparticles(CP NPs),while endowing the CP NPs with redox activity and biocompatibility.This is a universal strategy applicable for a series of CPs,including polyaniline,polypyrrole,and poly(3,4-ethylenedioxythiophene).The catechol/quinone contained sulfonated lignin(LS)was doped into various CPs to form CP/LS NPs with hydrophilicity,conductivity,and redox activity.These CP/LS NPs were used as versatile nanofillers to prepare the conductive hydrogels with long-term adhesiveness.The CP/LS NPs-incorporated hydrogels have a good conductivity because of the uniform distribution of the hydrophilic NPs in the hydrogel network,forming a well-connected electric path.The hydrogel exhibits long-term adhesiveness,which is attributed to the mussel-inspired dynamic redox balance of catechol/quinone groups on the CP/LS NPs.This conductive and adhesive hydrogel shows good electroactivity and biocompatibility and therefore has broad applications in electrostimulation of tissue regeneration and implantable bioelectronics. | Donglin Gan Tao Shuai Xiao Wang Ziqiang Huang Fuzeng Ren Liming Fang Kefeng Wang Chaoming Xie Xiong Lu | 2020 | Nano-Micro Letters2020,12,12: | 4 |
| 7 | Streamer dynamics and charge self-erasing of two counter-propagating plasmas in repetitively pulsed surface dielectric barrier discharge显示文摘The streamer dynamics and charge self-erasing of two counter-propagating plasmas generated by repetitively pulsed surface dielectric barrier discharge are investigated using electrical and optical diagnosis,and a two-dimensional fluid model.Three distinct discharge phases of primary,transitional and secondary streamers are identified in a single-pulse discharge through the time-resolved plasma images.Moreover,a merging phenomenon of the two opposing primary streamers is observed at the middle position of the discharge gap.Compared to the first pulse,a low streamer propagation velocity of the primary streamer is measured during the subsequent discharge process due to the limitation of residual surface charges left by the previous discharge.No significant dif-ferences of the transferred charge and the deposited energy are obtained in the sequential pulses at a discharge gap of 9 mm.Numerical simulations show that a reduction for the plasma intensity of the approached two primary streamers is attributed by the accumu-lated charge on the dielectric surface and gathered positive charges in the streamer head.Numerical and experimental studies indicate that the residual charges can be erased by the secondary streamer through the drifted electrons,namely that a phenomenon of charge self-erasing can be realized in the individual pulse. | Bangfa Peng Nan Jiang Kefeng Shang Na Lu Jie Li Yan Wu | 2022 | High Voltage2022,7,4: | 2 |
| 8 | Microwave enhanced synthesis of MOF-5 and its CO 2 capture ability at moderate temperatures across multiple capture and release cycles显示文摘 | Chun-Mei Lu Jun Liu Kefeng Xiao Andrew T. Harris | 2009 | Chemical Engineering Journal2009,,2: | 1 |
| 9 | Performance evaluation of non-thermal plasma injection for elemental mercury oxidation in a simulated flue gas显示文摘 | An Jiutao Shang Kefeng Lu Na | 2014 | Journal of hazardous Materials2014,268,: | 1 |
| 10 | Research on processing medicinal herbs with multi-steps infrared macrofingerprint method 显示文摘 | Yu Lu Sun Suqin Fan Kefeng | 2005 | Spectrochim Acta A2005,62,13: | 1 |
| 11 | Cell culture medium as an alternative to conventional simulated body fluid显示文摘 | Juliana T.Y. Lee Yang Leng King L. Chow Fuzeng Ren Xiang Ge Kefeng Wang Xiong Lu | 2011 | Acta Biomaterialia2011,,6: | 1 |
| 12 | Improved phenol decomposition and simultaneous regeneration of granular activated carbon by the addition of a titanium dioxide catalyst under a dielectric barrier discharge plasma显示文摘 | Shoufeng Tang Na Lu Jie Li Kefeng Shang Yan Wu | 2012 | Carbon2012,,: | 1 |
| 13 | Inactivation Mechanisms of Escherichia Coli in Drinking Water Using Reactive Species Generated from a Surface Discharge显示文摘Bacterial and chemical contaminations of drinking water imperil the health of people.A reactive species injection method is presented for sterilizing drinking water.To produce reactive species,a gas phase surface discharge reactor(SDR)is designed:a spiral stainless steel wire attached on the inside wall of a quartz glass tube is used as the high voltage electrode,and the drinking water is the ground electrode.The performance and mechanisms of the method in inactivating of Escherichia coli(E.coli)are analyzed.Experimental results show that 500 mL E.coli-contaminated drinking water(108CFU/mL)is completely sterilized within 4 min.Based on the scanning electron microscope(SEM)analysis,there were plasma-induced cell structure damages of the E.coli in the sterilized water,and the damage resulted in the leakage of protein,which was proved by chemical analyses.Meanwhile,the heating effect concomitantly generated by discharge plasma does not influence E.coli inactivation,and the contribution of direct ultraviolet(UV)irradiation could be neglected too.The ozone generated by SDR and the hydroxyl radicals(·OH)subsequently generated in drinking water play the decisive roles in E.coli inactivation because these reactive species cause the cell rupture. | LI Jie SHANG Kefeng WANG Tiecheng LU Na WANG Tianwei WU Yan | 2013 | 高电压技术2013,39,9: | 1 |
| 14 | Oxidationof elemental mercury by active speciesgenerated from a surface dielectric barrierdischarge plasma reactor显示文摘 | AN Jiutao SHANG Kefeng LU Na | 2014 | Plasma Chemistry& Plasma Processing2014,34,1: | 1 |
| 15 | Innovativeapproach for benzene degradation using hybridsurface/packed-bed discharge plasmas显示文摘 | JIANG Nan LU Na SHANG Kefeng | 2013 | Environmental Science & Technology2013,47,17: | 1 |
| 16 | Research on processingmedicinal herbs with multi-steps infraredmacro-ngerprint meth-od显示文摘 | Yu Lu Sun Suqin Fan Kefeng | 2005 | Spectrochim Acta A Mol Biomol Spectrosc2005,62,13: | 1 |
| 17 | H2O2 well cleanout leads to explosion显示文摘 | Lu Shuanlu Zhao Kefeng | | Oil and Gas Publication date0,,: | 1 |
| 18 | Abatement of mixed volatile organic compounds in a catalytic hybrid surface/packed-bed discharge plasma reactor显示文摘 | Lianjie Guo Nan Jiang Jie Li Kefeng Shang Na Lu Yan Wu | 2018 | Frontiers of Environmental Science & Engineering2018,12,2: | 1 |
| 19 | Ubiquitin ligase Smurf1 targets TRAF family proteins for ubiquitination and degradation显示文摘 | Shan Li Kefeng Lu Jian Wang Liguo An Guiwen Yang Hui Chen Yu Cui Xiushan Yin Ping Xie Guichun Xing Fuchu He Lingqiang Zhang | 2010 | Molecular and Cellular Biochemistry (-)2010,,1: | 1 |
| 20 | Effect of super-chilling storage on maintenance of quality and freshness of the Pacific oyster(Crassostrea gigas)显示文摘The quality changes of shelled Pacific oysters(Crassostrea gigas)were examined in relation to the effects of superchilling storage at-1 C for 28 d by measuring changes in biochemical properties(microbial analysis,adenosine triphosphate(ATP)-related compounds,pH,free amino acids)and sensory evaluations in this study.The results indicated that microorganism growth was significantly inhibited during superchilling storage.Adenosine diphosphate(ADP)and adenosine monophosphate(AMP)accumulated while ATP rapidly decreased in the adductor muscle.ATP and ADP were the primary components in the other 3 tissues including mantle,gill,and body trunk of oysters,and they remained relatively stable over time.The pH and adenylate energy charge in the adductor muscle could be utilized as freshness indicators for shelled oysters.However,there were no significant differences(P>0.05)among the free amino acids during whole storage.According to the sensory evalu-ations,oysters could be alive and tolerated up to 21 d at-1℃storage.The study demonstrated that superchilling storage at-1℃could better maintain the eating quality of shelled oysters and the shelf life was extended to 21 d. | Shiliang Dong Yabin Niu Huamao Wei Yumeng Lin Xin Lu Tetsuro Yamashita Kefeng Yu Koichi Takaki Chunhong Yuan | 2023 | Food Quality and Safety2023,7,2: | 0 |