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| 1 | Effect of yellow rice wine on anti-aging ability in aged mice induced by D-galactose显示文摘The present study is focused on investigation of the health protective effect of yellow rice wine(YRW)in mice and the potential underlying mechanism.Symptoms of aging were induced in mice by using Dgalactose(D-gal),and different doses of YRW(4,8,and 12 mL/kg BW)were orally administrated to D-galtreated mice for a period of six weeks.The in vivo data obtained in the present study preliminary indicated that YRW markedly increased the activity of antioxidant enzymes and reduced the concentration of MDA both in the brain and liver.Furthermore,a forced swim test showed that moderate intake of YRW(8 mL/kg BW)significantly decreased the duration of immobility,reduced the blood content of urea nitrogen and lactic acid,and increased hepatic glycogen storage.Besides,results from the Morris water maze test suggested that YRW significantly reversed cognitive impairment and also alleviated neuroapoptosis in the experimental mice by regulating the gene expressions of Bax/Bcl-2 and caspase-3.The above results indicated YRW has a potential anti-aging effect in mice and provided us certain molecular evidence for this action. | Rong Liu Zukang Fu Fengjie Zhang Qingzhong Mao Chunguang Luan Xinglin Han Jie Xue Deliang Wang Si Qin Feike Hao | 2020 | Food Science and Human Wellness2020，9，2： | 8 |
| 2 | Mutation of kri1l causes definitive hematopoiesis failure via PERK-dependent excessive autophagy induction显示文摘 | Xiao-E Jia Ke Ma Tao Xu Lei Gao Shuang Wu Cong Fu Wenjuan Zhang Zhizhang Wang Kaiyu Liu Mei Dong Changbin Jing Chunguang Ren Zhiwei Dong Yi Chen Yi Jin Qiuhua Huang Xing Chang Min Deng Li Li Lingfei Luo Jun Zhu Yongjun Dang Hung-Chun Chang Leonard I Zon Yi Zhou Saijuan Chen Weijun Pan | 2015 | Cell Research2015，25，8： | 8 |
| 3 | Microbiologically influenced corrosion of titanium caused by aerobic marine bacterium Pseudomonas aeruginosa显示文摘Microbiologically influenced corrosion(MIC) is a big threat to the strength and safety of many metallic materials used in different environments throughout the world. The metabolites and bioactivity of the microorganisms cause severe deterioration on the metals. In this study, MIC of pure titanium(Ti) was studied in the presence of a highly corrosive aerobic marine bacterium Pseudomonas aeruginosa. The results obtained from electrochemical test showed that Ti was corrosion resistant in the abiotic culture medium after 14 d, while the increased corrosion current density(i_(corr)) obtained from polarization curves and the decreased charge transfer resistance(R_(ct)) from electrochemical impedance spectroscopy(EIS)indicated the accelerated corrosion of Ti caused by P. aeruginosa biofilm. For further confirmation of the above results, the surface of Ti was investigated using scanning electron microscopy(SEM), confocal laser scanning microscopy(CLSM) and X-ray photoelectron spectroscopy(XPS). According to the XPS results, TiO_2 was formed in both abiotic and biotic conditions, while unstable oxide Ti_2O_3 was detected in the presence of P. aeruginosa, leading to the defects in the passive film and localized corrosion. Pitting corrosion was investigated with the help of CLSM, and the largest pit depth found on Ti surface immersed in P. aeruginosa was 1.2 μm. Ti was not immune to MIC caused by P. aeruginosa. | M.Saleem Khan Zhong Li Ke Yang Dake Xu Chunguang Yang Dan Liu Yassir Lekbach Enze Zhou Phuri Kalnaowakul | 2019 | Journal of Materials Science & Technology2019，35，1： | 8 |
| 4 | FBW7 regulates endothelial functions by targeting KLF2 for ubiquitination and degradation显示文摘F 盒子和 WD 重复包含域 7 (FBW7 ) , E3 ubiquitin ligase SCF FBW7 (SKP1, cullin-1 和 FBW7 的建筑群) ,在各种各样的生理、病理学的过程起重要作用。尽管 FBW7 为脉管的开发被要求,它在内皮细胞层的函数尚待被调查。在这研究,我们证明 FBW7 是 endothelial 功能的一个重要管理者,包括 angiogenesis,白血球粘附和 endothelial 障碍正直。用 RNA 干扰,我们发现 FBW7 的弄空显著地在 vitro 并且在 vivo 损害 angiogenesis。我们识别了锌手指抄写因素 Krü象 ppel 一样因素 2 (KLF2 ) 作为在 endothelial 房间的 FBW7 的一个生理的目标。FBW7 击倒表示在 endothelial 房间导致了内长的 KLF2 蛋白质的累积。调停 FBW7 的 KLF2 破坏被显示在二保存 phosphodegrons 经由肝糖 synthase kinase-3 (GSK3 ) 取决于 KLF2 的 phosphorylation。变异这些 phosphodegron 主题废除了 KLF2 的调停 FBW7 的降级和 ubiquitination。调停 siRNA 显示出的 FBW7 击倒 KLF2 是在 endothelial 的规定的 FBW7 的一个必要目标,这工作。而且,调停 FBW7 的 KLF2 降级被显示为在 teratomas 并且在 zebrafish 开发的 angiogenesis 批评。一起拿,我们的学习在 endothelial 房间移植, angiogenesis,发炎和障碍完整的进程为 FBW7 建议一个角色,并且在 vivo 提供新奇卓见进 KLF2 稳定性的规定。 | Rui Wang Yah Wang Ning Liu Chunguang Ren Cong Jiang Kai Zhang Su Yu Yunfei Chen Hui Tang Qi Deng Cong Fu Yingcong Wang Rong Li Mingyao Liu Weijun Pan Ping Wang | 2013 | Cell Research2013，23，6： | 7 |
| 5 | Simple fabrication of superhydrophobic PLA with honeycomb-like structures for high-efficiency oil-water separation显示文摘Polylactic acid(PLA) is one of the most suitable candidates for environmental pollution treatment because of its biodegradability which will not cause secondary pollution to the environment after application.However,there is still a lack of a green and facile way to prepare PLA oil-water separation materials.In this work,a water-assisted thermally induced phase separation method for the preparation of superhydrophobic PLA oil-water separation material with honeycomb-like structures is reported.The PLA material shows great ability in application and could adsorb 27.3 times oil to its own weight.In addition,it could also be applicated as a filter with excellent efficiency(50.9 m^3 m^(-2) h^(-1)). | Xiaolong Wang Yamin Pan Huan Yuan Meng Su Chunguang Shao Chuntai Liu Zhanhu Guo Changyu Shen Xianhu Liu | 2020 | Chinese Chemical Letters2020，31，2： | 7 |
| 6 | Investigation on the fabrication of lightweight aggregate with acid-leaching tailings of vanadium-bearing stone coal minerals and red mud显示文摘Proper treatment of acidleaching tailings(ALTs)of vanadiumbearing stone coal minerals is of great urgency.One approach is adding it into the raw materials during the preparation of lightweight aggregate(LWA).But clay is always needed.In this paper,another solid waste,red mud,was mixed with ALTs as a source of flux components instead of clay.Evaluation of the physical characteristics,morphological structures,as well as crystal phases during the sintering process were investigated.When their mixtures with a proper ratio were sintered at 1080℃,a glassy phase with certain viscosity was formed,and the gases generated simultaneously were encapsulated by the melt.Finally,LWA with a onehour water absorption as low as 1.46%,a bulk density as low as 728.76 kgm 3 and a compressive strength as high as 10.77 MPa was fabricated. | Chunguang Song Hongling Zhang Yuming Dong Lili Pei Honghui Liu Junsheng Jiang Hongbin Xu | 2021 | Chinese Journal of Chemical Engineering2021，34，4： | 6 |
| 7 | Two Potent α3/5 Conotoxins from Piscivorous Conus achatinus显示文摘每个锥蜗牛生产不同 conotoxins 的混合物并且分泌他们使他们的猎物和食肉动物不能调动。α 3 /5 Conotoxins,从狩猎鱼的锥蜗牛孤立,目标肌肉烟碱的醋胆素受体。从食鱼的 Conus achatinus 的α 3 /5 conotoxin 的结构和功能没被学习。我们综合了二 pentadecamer 肽, Ac1.1a 和 Ac1.1b 与适当二硫化物结合,基于α 3 /5 conotoxinsfrom C 的 cDNA 序列。achatinus。Ac1.1a 和 Ac1.1b 由一仅仅氨基酸残余不同。他们分别地在堵住在 Xenopus laevisoocytes 表示的 recombinant 老鼠肌肉醋胆素受体上有类似的力量,与 36 nM 和 26 nM 的 IC_(50 ) 价值。为 Ac1.1b,开始的三 N 终端氨基酸的删除没改变它的活动,显示 N 终点不涉及和它的受体的相互作用。而且,我们的实验显示两毒素强烈在老鼠肌肉上比较喜欢α _1- δ子单元接口而不是α _1- γ结合部位烟碱的醋胆素受体。这些肽为结构的学习和烟碱的受体的功能提供另外的工具。 | Li LIU Geoffrey CHEW Edward HAWROT Chengwu CHI Chunguang WANG | 2007 | Acta Biochimica et Biophysica Sinica2007，39，6： | 5 |
| 8 | Effect of Cu Addition to 2205 Duplex Stainless Steel on the Resistance against Pitting Corrosion by the Pseudomonas aeruginosa Biofilm显示文摘The effect of copper addition to 2205 duplex stainless steel(DSS) on its resistance against pitting corrosion by the Pseudomonas aeruginosa biofilm was investigated using electrochemical and surface analysis techniques. Cu addition decreased the general corrosion resistance, resulting in a higher general corrosion rate in the sterile medium. Because DSS usually has a very small general corrosion rate, its pitting corrosion resistance is far more important. In this work, it was shown that 2205-3%Cu DSS exhibited a much higher pitting corrosion resistance against the P. aeruginosa biofilm compared with the 2205 DSS control, characterized by no significant change in the pitting potential and critical pitting temperature(CPT) values. The strong pitting resistance ability of 2205-3%Cu DSS could be attributed to the copper-rich phases on the surface and the release of copper ions, providing a strong antibacterial ability that inhibited the attachment and growth of the corrosive P. aeruginosa biofilm. | Ping Li Yang Zhao Yuzhi Liu Ying Zhao Dake Xu Chunguang Yang Tao Zhang Tingyue Gu Ke Yang | 2017 | Journal of Materials Science & Technology2017，33，7： | 5 |
| 9 | A Utility-Based Buffer Management Policy for Improving Data Dissemination in Opportunistic Networks显示文摘In opportunistic networks, most existing buffer management policies including scheduling and passive dropping policies are mainly for routing protocols. In this paper, we proposed a Utility-based Buffer Management strategy(UBM) for data dissemination in opportunistic networks. In UBM, we first design a method of computing the utility values of caching messages according to the interest of nodes and the delivery probability of messages, and then propose an overall buffer management policy based on the utility. UBM driven by receivers completely implements not only caching policies, passive and proactive dropping policies, but also scheduling policies of senders. Simulation results show that, compared with some classical dropping strategies, UBM can obtain higher delivery ratio and lower delay latency by using smaller network cost. | Jiansheng Yao Chunguang Ma Haitao Yu Yanling Liu Qi Yuan | 2017 | China Communications2017，14，7： | 5 |
| 10 | Temperature influence on macro-mechanics parameter of intact coal sample containing original gas from Baijiao Coal Mine in China显示文摘Investigation of temperature effect on mechanical parameters of coal is very important for understanding the mechanical response of coal bed at high temperature.It is especially benefcial for mitigating the thermal-induced disasters occurred in those coal mines suffering from heat hazard.In this work,coal samples,obtained from the No.2442 working face of Baijiao Coal Mine,were subjected to uniaxial compression ranging from 20 to 40℃ with an interval of 5℃.The apparatus used was designed to obtain deformation of a stressed sample,as well as the emission of gases desorbing from coal matrix.The adsorbed gas desorption caused by heating is measured during the entire testing.It is evident that the concentrations of releasing gas(containing methane,carbon dioxide and ethane)slightly rise with increasing temperature.Gas movement observed is closely related to the deformation of coal sample.Both uniaxial compressive strength and elastic modulus of coal samples tend to reduce with temperature.It reveals that increasing temperature can not only result in thermal expansion of coal,but also lead to desorption of preexisting gas in coal which can in turns harden coal due to shrinks of the coal matrix.Even though desorption of adsorbed gas can contribute to the hardening effect for the heated coal,by comparison to the results,it could be inferred that the softening of coal resulted from thermal expansion still predominates changes in mechanical characters of coal sample with temperature at the range from20 to 40℃. | Wang Chunguang He Manchao Zhang Xiaohu Liu Zhaoxia Zhao Tongbin | 2013 | International Journal of Mining Science and Technology2013，23，4： | 4 |
| 11 | Enhanced resistance of 2205 Cu-bearing duplex stainless steel towards microbiologically influenced corrosion by marine aerobic Pseudomonas aeruginosa biofilms显示文摘An antibacterial 2205-Cu duplex stainless steel(DSS)was shown to inhibit the formation and growth of corrosive marine biofilms by direct contact with copper-rich phases and the release of Cu^(2+)ions from the2205-Cu DSS surface.In this work,the microbiologically influenced corrosion(MIC)resistance of 2205-Cu DSS in the presence of the corrosive marine bacterium Pseudomonas aeruginosa was investigated.The addition of copper improved the mechanical properties such as the yield strength,the tensile strength and the hardness of 2205 DSS.Electrochemical test results from linear polarization resistance(LPR),electrochemical impedance spectroscopy(EIS)and critical pitting temperature(CPT)measurements showed that 2205-Cu DSS possessed a larger polarization resistance(R_p),charge transfer resistance(R_(ct))and CPT values,indicating the excellent MIC resistance of 2205-Cu DSS against the corrosive P.aeruginosa biofilm.The live/dead staining results and the SEM images of biofilm confirmed the strong antibacterial ability of 2205-Cu DSS.The largest pit depth of 2205-Cu DSS was considerably smaller than that of 2205 DSS after 14 d in the presence of P.aeruginosa(2.2μm vs 12.5μm).2205-Cu DSS possessed a superior MIC resistance to regular 2205 DSS in the presence of aerobic P.aeruginosa. | Dake Xu Enze Zhou Ying Zhao Huabing Li Zhiyong Liu Dawei Zhang Chunguang Yang Hai Lin Xiaogang Li Ke Yang | 2018 | Journal of Materials Science & Technology2018，34，8： | 4 |
| 12 | A novel method for evaluating the dynamic biocompatibility of degradable biomaterials based on real-time cell analysis显示文摘Degradable biomaterials have emerged as a promising type of medical materials because of their unique advantages of biocompatibility,biodegradability and biosafety.Owing to their bioabsorbable and biocompatible properties,magnesium-based biomaterials are considered as ideal degradable medical implants.However,the rapid corrosion of magnesium-based materials not only limits their clinical application but also necessitates a more specific biological evaluation system and biosafety standard.In this study,extracts of pure Mg and its calcium alloy were prepared using different media based on ISO 10993:12;the Mg^2+ concentration and osmolality of each extract were measured.The biocompatibility was investigated using the MTT assay and xCELLigence real-time cell analysis(RTCA).Cytotoxicity tests were conducted with L929,MG-63 and human umbilical vein endothelial cell lines.The results of the RTCA highly matched with those of the MTT assay and revealed the different dynamic modes of the cytotoxic process,which are related to the differences in the tested cell lines,Mg-based materials and dilution rates of extracts.This study provides an insight on the biocompatibility of biodegradable materials from the perspective of cytotoxic dynamics and suggests the applicability of RTCA for the cytotoxic evaluation of degradable biomaterials. | Xiaoxiao Gai Chenghu Liu Guowei Wang Yang Qin Chunguang Fan Jia Liu Yanping Shi | 2020 | Regenerative Biomaterials2020，7，3： | 3 |
| 13 | Dynamic analysis of heat extraction rate by supercritical carbon dioxide in fractured rock mass based on a thermal-hydraulic-mechanics coupled model显示文摘Heat production from geothermal reservoirs is a typical heat transfer process involving a cold working fluid contacting a hot rock formation.Compared to the thermal-physical characteristics of water,supercritical CO_(2)(scCO_(2))has a higher heat storage capacity over a wide temperature-pressure range and may be favored as a heat transfer fluid.Singularly characteristic of scCO_(2)-based heat extraction is that the hydraulic-thermal properties of the scCO_(2) vary dramatically and dynamically with the spatial pressure gradient during unsteady-state flow along fracture.This highly nonlinear behavior presents a challenge in the accurate estimation of heat extraction efficiency in scCO_(2)-based EGS.In this paper,a thermal-h ydraulic-mechanical(THM)coupled model is developed by considering deformation of the fractured reservoir,non-Darcy flow and the varying thermal-physical properties of scCO_(2).The proposed model is validated by matching the modeling temperature distribution with published data.The results show that during continuous injection of scCO_(2),the fracture first widens and then narrows,ultimately reopening over the long term.The sequential fracture deformation behaviors are in response to the combined impacts of mechanical compression and thermally-induced deformation.By controlling the injection parameters of the scCO_(2),it is found that the heat extraction rate is positively correlated to its pore pressure or mass flow rate.The heat extraction rate can be significantly enhanced,when the inlet temperature of scCO_(2) is below its critical temperature.As a result,the heat increment recovered per unit mass of scCO_(2) decreases as the hot rock is gradually cooled.Meanwhile,the heat increment recovered per unit mass of scCO_(2) decreases by increasing the inlet temperature of scCO_(2) or its mass flow rate,but increases as the outlet pressure rises.Furthermore,multi-linear regression indicates that controlling the inlet temperature of the scCO_(2) can significantly improve the thermodynamic efficiency of heat extraction. | Chunguang Wang Xingkai Shi Wei Zhang Derek Elsworth Guanglei Cui Shuqing Liu Hongxu Wang Weiqiang Song Songtao Hu Peng Zheng | 2022 | International Journal of Mining Science and Technology2022，32，2： | 3 |
| 14 | Designing a high Si reduced activation ferritic/martensitic steel for nuclear power generation by using Calphad method显示文摘A high Si reduced activation ferritic/martensitic(RAFM) steel for nuclear structure application is successfully designed by using Calphad method. The main designed chemical composition is C 0.18–0.22%, Cr10.0–10.5%, W 1.0–1.5%, Si 1.0–1.3%, V+Ta 0.30–0.45%, and Fe in balance. High Si design brings excellent corrosion resistance, while low activation is advantageous in the nuclear waste processing. The experimental results indicate that the newly designed high Si RAFM steel had full martensitic structure and uniformly distributed fine second phase particles, and exhibited excellent mechanical properties and corrosion resistance. Compared to the P91 steel, this new RAFM steel designed by Calphad method is expected to be a promising candidate used in nuclear power generation, which also provides a new and effective approach to the development of RAFM steel for nuclear application. | Chao Liu Quanqiang Shi Wei Yan Chunguang Shen Ke Yang Yiyin Shan Mingchun Zhao | 2019 | Journal of Materials Science & Technology2019，35，3： | 3 |
| 15 | Optimization of annealing treatment and comprehensive properties of Cu-containing Ti6Al4V-xCu alloys显示文摘The Ti6Al4V-Cu alloy was reported to show good antibacterial properties, which was promising to reduce the hazard of the bacterial infection problem. For the purpose of preparing Ti6Al4V-Cu alloy with satisfied comprehensive properties, it’s important to study the heat treatment and the appropriate Cu content of the alloy. In this study, high Cu content Ti6Al4V-x Cu(x = 4.5, 6, 7.5 wt%) alloys were prepared, and firstly the annealing heat treatments were optimized in the α+β+Ti2Cu triple phase region to obtain satisfied tensile mechanical properties. Then the effect of Cu content on the tribological property, corrosion resistance, antibacterial activity and cytotoxicity of the Ti6Al4 V-x Cu alloys were systematically studied to obtain the appropriate Cu content. The results showed that the optimal annealing temperatures for Ti6Al4 V-x Cu(x = 4.5, 6, 7.5 wt%) alloys were 720, 740 and 760℃, respectively, which was resulted from the proper volume fractions of α,β and Ti2Cu phases in the microstructure. The additions of 4.5 wt% and 6 wt% Cu into the medical Ti6Al4 V alloy could enhance the wear resistance and corrosion resistance of the alloy, but the addition of 7.5 wt% Cu showed an opposite effect. With the increase of the Cu content, the antibacterial property was enhanced due to the increased volume fraction of Ti2Cu phase in the microstructure, but when the Cu content was increased to 7.5 wt%, cytotoxicity was presented. A medium Cu content of 6 wt%, with annealing temperature of 740℃ make the alloy possesses the best comprehensive properties of tensile properties, wear resistance, corrosion resistance, antibacterial property and biocompatibility, which is promising for future medical applications. | Cong Peng Yang Liu Hui Liu Shuyuan Zhang Chunguang Bai Yizao Wan Ling Ren Ke Yang | 2019 | Journal of Materials Science & Technology2019，35，10： | 3 |
| 16 | Theoretical investigation on structures,electronic spectra and nonlinear optical properties of gold compounds [X-{Au(PMe_3)}_2]显示文摘The structures,electronic spectra,polarizability and third-order nonlinear optical properties of six gold compounds [X-{Au(PMe3)}2]were investigated by density functional theory(DFT)B3LYP and BhandHLYP methods.It was found that the calculation methods and basis set are rational for the object of study,and molecular structures change slightly when PPh3 is replaced by PMe3.The spatial effects of the bridging section have a significant influence on the polarizability,but indistinctive to the third-order nonlinear optical(NLO)coefficient.As a result of the conjugated effect in different compounds,the third-order polarizability of molecule 1a is the smallest,while that of molecule 2a is the largest.Au has donor ability in molecule 1a but acceptor ability in molecules 2a-6a by analyzing the electronic spectra and frontier molecular orbitals constitute maximal absorption,which indicates the contribution of Au to NLO properties in the six molecules is different. | MA NaNa,QIU YongQing,SUN ShiLing,LIU ChunGuang,FAN Min & SU ZhongMin Institute of Functional Material Chemistry,Faculty of Chemistry,Northeast Normal University,Changchun 130024,China | 2010 | Science China Chemistry2010，53，5： | 3 |
| 17 | Process Parameter Optimizing and Studies on Microstructure and Properties of AZ31 Alloy Prepared by Semisolid Rolling Process显示文摘A novel continuous semisolid rolling process for producing AZ31 alloy strip was developed. The process parameters were optimized, and microstructure and properties of AZ31 alloy prepared by the process were studied. The results reveal that primary grains of the strip become coarse, and the grain structure transforms from round shape to dendrite with the increment of casting temperature gradually. Eutectic phase fraction and primary grain size increase with the increment of roll speed. The primary grain size decreases firstly and then increases with the increment of the vibration frequency correspondingly. When the casting temperature is from 650℃ to 690℃, the roll speed is 0.069 m·s-1 , and the vibration frequency is about 80 Hz, AZ31 alloy strip with a cross section size of 4 mm×160 mm was prepared by the proposed process. The ultimate tensile strength and elongation are improved 1% and 57%, respectively. | Renguo GUAN Zhanyong ZHAO Xiang WANG Chunguang DAI Chunming LIU | 2013 | Acta Metallurgica Sinica(English Letters)2013，26，3： | 2 |
| 18 | Influence of alloplasm on resistance to wheat scab显示文摘Using alloplasmic wheat as test materials, the genetic effect of cytoplasm on wheat scab resistance was studied by three methods including the determination of resistance of explant calli to Gibberella zeae toxin, the identification of inoculating single fixed position and the identification of field resistance. The results showed that among 'the homonucleo_heterocytoplasmic lines', resistance of calli to G. zeae toxin was different; the difference of cytoplasmic effect among different nucleoplasm combinations showed certain nucleoplasm interaction relation. Resistance of hybrid F 1 plants of reciprocal cross between alloplasmic line and disease-sensitive wheat variety to wheat scab was of clear difference. Hybrid F 1 of reciprocal cross between Ae. ventricosa cytoplasmic wheat and disease-sensitive or -resistant wheat variety all exhibited fine resistance effect of alloplasm. Compared with general common wheat variety, most alloplasmic wheats tested have stronger resistance. A few selected lines having Ae. ventricosa cytoplasm have a strong and stable resistance to scab. They can be a finer new resistant source. | Wu Yuwen Ren Shuxin Liu Chunguang Hou Ning Zhang Cuilan Zhang Yan | 1998 | Chinese Science Bulletin1998，43，12： | 2 |
| 19 | New strategy to delay food spoilage:Application of new food contact material with antibacterial function显示文摘Frequent food poisoning and food-borne diseases outbreaking in recent years have caused people to attach great attention to food safety,especially the food contact materials that are essential in the food industrial chains and daily lives,ensuring their clean sanitation are of great importance in blocking microbial contamination and spread of food-borne pathogens.Stainless steel(SS)is one of the most accepted and widely used food contact material,and the Cu-bearing SS possesses excellent antibacterial performance and maintains the original mechanical properties of SS,maybe making it a better substitute for the conventional SS in the food area.Taking advantages of bactericidal and antifouling properties of Cubearing SS,this study simulated a variety of food contact scenarios,explored a new strategy for food preservation and food safety by using Cu-bearing SS as a food contact material.The results showed that the Cu-bearing SS could not only delay the spoilage of different foods by inhibiting the activity of microorganisms in foods,but also reduce the expressions of spoilage traits of bacteria as well as the formation of biofilms by quenching the quorum-sensing signals,and further creating a good bacteriostatic atmosphere for the contacted food and its surrounding environment.In addition,the remarkable antifouling property of Cu-bearing SS would give the material a self-cleaning feature for food applications,which can avoid secondary contamination of food as a source of contamination.This study well demonstrates that the Cu-bearing SS has broad application potentials and prospects in the food area. | Xinrui Zhang Xiaofang Liu Chunguang Yang Tong Xi Jinlong Zhao Lichu Liu Ke Yang | 2021 | Journal of Materials Science & Technology2021，，11： | 2 |
| 20 | Corrosion Inhibition of X80 Steel in Simulated Marine Environment with Marinobacter aquaeolei显示文摘In the present study, a novel bacterium( Marinobacter aquaeolei) was examined for its corrosion inhibiting behaviour against X80 pipeline steel. Electrochemical results showed that X80 steel immersed in the solution inoculated with M. aquaeolei possessed very high corrosion resistance compared to that of abiotic control. Besides, scanning electron microscopy, confocal laser scanning microscopy and energy-dispersive X-ray spectroscopy were employed to analyse the corrosion product and the biofi lm formed on the metal surface. Fourier-transform infrared spectroscopy was also applied to determine the composition of extracellular polymeric substances(EPS). Above results indicated that the corrosion inhibition effciency observed in biotic medium was very high(91%), proving that M. aquaeolei was an effective inhibitive agent for the corrosion of carbon steel. The inhibition was credited to the formation of bacterial biofi lm and the compact protective layer of the secreted EPS. Thus, this study will introduce a natural, environmentally friendly and cost-effective system for the corrosion control of the carbon steel. | M.Saleem Khan Dake Xu Dan Liu Yassir Lekbach Ke Yang Chunguang Yang | 2019 | Acta Metallurgica Sinica(English Letters)2019，32，11： | 2 |
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