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Mechanically durable biomimetic fibrous membrane with superhydrophobicity and superoleophilicity for aqueous oil separation

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Chinese Chemical Letters 2020年第10期31卷 2619-2622页

作者： Zhigao Zhu lingling zhong Yu Wang Gaofeng Zeng Wei Wang Key Laboratory of New Membrane Materials Ministry of Industry and Information TechnologySchool of Environment and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China

Developing an effective and mechanically durable biomimetic membrane for the separation of highly emulsified aqueous oil is significant but challenging owing to its low water flux and serious membrane *** this work,a biomimetic membrane with superhydrophobicity and superoleophilicity was rationally developed via co-electrospinning of polysulfonamide/polyacrylonitrile(PSA/PAN)emulsion solution,followed by decorating of a-Fe2 O_(3) nanowire onto the membrane surface to create membrane roughness,and grafting of 1 H,1 H,2 H,2 H-perfluorododecyltrichlorosilane(FTCS)to lower membrane surface free *** from the nanowire-wrapped rough membrane structure and the low surface free energy FTCS,the resultant membrane showed superhydrophobicity with a high water contact angle(WCA)of 156°,superoleophilicity with a low oil contact angle(OCA)of 0°,which can separate the highly emulsified aqueous oil with an ultrahigh permeation flux over 7000 L m2 h-1 and high separation efficiency of about 99%.Significantly,the biomimetic membrane also displayed robust stability for long-te rm separation owing to its adva ntage of antifouling property,showing great potential applications in large-scale aqueous oil treatment.

关键词： Emulsion electrospinning High-strength fibrous membrane Polysulfonamide/polyacrylonitrile α-Fe_(2)O_(3) nanowire Aqueous oil separation

Superhydrophobized Polyacrylonitrile/Hierarchicall-FeOOH Nanofibrous Membrane for High-salinity Water Treatment in Membrane Distillation

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Chemical Research in Chinese Universities 2021年第3期37卷 470-479页

作者： XIANG Huilin zhong lingling REN Yongqing LIU Dongmei ZHU Zhigao XU Ying WANG Yu WANG Wei State Key Laboratory of Urban Water Resource and Environment(SKLUWRE) School of EnvironmentHarbin Institute of TechnologyHarbin150090China School of Materials Science and Environment Zhengzhou UniversityZhengzhou450001China Key Laboratory of New Membrane Materials Ministry of Industry and Information TechnologySchool of Environment and Biological EngineeringNanjing University of Science and TechnologyNanjing210094China Daqing Petroleum Equipment Group Daqing163311China

Water flux and hydrophobic durability play important roles in membrane distillation(MD)*** with the method of adsorbing nanoparticles by electrostatic adsorption,the surface roughness constructed by chemical bonding is more conducive to the performance of *** paper reports a facile approach to fabricating superhydrophobic fluoroalkyl silane/polydimethylsiloxane@FeOOH@stabilized polyacrylonitrile(FAS/PDMS@FeOOH@SPAN)nanofibrous membrane(NFM)with outstanding hierarchical structures,aiming to achieve efficient and stable performance in *** polyacrylonitrile(PAN)membrane after peroxidation was chosen as the base membrane,followed by in-situ synthesis of iron oxyhydroxide and liquid-phase *** tested the characteristics of FAS/PDMS@FeOOH@SPAN NFM in each preparation stage and its performance in direct contact membrane distillation(DCMD).The chemical bond between iron oxyhydroxide and the membrane is stronger,making the rough structure steady and *** FAS/PDMS@FeOOH@SPAN NFM exhibited a water contact angle of 155.4°and excellent hydrophobicity towards different ***,it showed satisfied properties with a water flux of 24.7 L·m^(−2)·h^(−1),a high salts rejection of ca.100%and an extended-term stability in DCMD using hypersaline water(10%,mass ratio).It is believed that this novel study proposes a universal and efficient method to fabricate a superhydrophobic surface and has great potential for high-salinity wastewater treatment in MD.

关键词： Superhydrophobic membrane Polyacrylonitrile Membrane distillation High-salinity water Electrospinning

DcMFC-AnMBR耦合系统处理含磺胺嘧啶养猪废水的性能研究

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工业水处理 2024年第10期44卷 68-75页

作者：司马聪张新波程衍斌王慧中杜青钟玲玲 Huu Hao NGO 天津城建大学环境与市政工程学院基础设施防护和环境绿色生物技术国际联合研究中心天津300384 天津城建大学天津市水质科学与技术重点实验室天津300384

构建了双室微生物燃料电池-厌氧膜生物反应器(DcMFC-AnMBR)耦合工艺系统,探究了耦合系统处理含磺胺嘧啶(SDZ)养猪废水的产电、污染物去除及产气性能,同时分析了SDZ影响下膜污染特征变化。结果表明:1.0 mg/L SDZ存在下DcMFC-AnMBR耦合系... 详细信息

构建了双室微生物燃料电池-厌氧膜生物反应器(DcMFC-AnMBR)耦合工艺系统,探究了耦合系统处理含磺胺嘧啶(SDZ)养猪废水的产电、污染物去除及产气性能,同时分析了SDZ影响下膜污染特征变化。结果表明:1.0 mg/L SDZ存在下DcMFC-AnMBR耦合系统平均输出电压和库仑效率分别下降了6.11%和7%,耦合系统最大功率密度为35.34 mW/m^(2),COD去除率始终保持在98%,平均生物气产量为542.59 mL/d。同时,SDZ的存在使污泥混合液Zeta电位绝对值升高了25.83%,污泥平均粒径减小了14~16μm,可溶性微生物产物(SMP)和胞外聚合物(EPS)平均浓度分别上升了7.76%和35.43%。耦合工艺系统运行期间跨膜压差(TMP)始终在0附近,其污染缓解原因可能是电活性微生物对SMP和EPS进行了有效的氧化降解。

关键词：双室微生物燃料电池厌氧膜生物反应器养猪废水磺胺嘧啶膜污染

胚胎移植患者饮水量对膀胱充盈时间影响的生存分析研究:一项随机对照试验

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中华生殖与避孕杂志 2024年第5期44卷 505-509页

作者：夏美玲唐纯芳汪雅琴罗铭陈妙虹钟玲玲黄莉张曦倩翁慧男张茂玲广东省妇幼保健院生殖健康与不孕症科广州511400

目的探讨饮水量对胚胎移植患者术前膀胱充盈时间的影响。方法收集2023年2月至6月期间于广东省妇幼保健院生殖健康与不孕症科拟行体外受精-胚胎移植的患者189例。运用随机数字表将患者随机分为A、B、C 3组,各组样本量依次为61例、64例和6... 详细信息

目的探讨饮水量对胚胎移植患者术前膀胱充盈时间的影响。方法收集2023年2月至6月期间于广东省妇幼保健院生殖健康与不孕症科拟行体外受精-胚胎移植的患者189例。运用随机数字表将患者随机分为A、B、C 3组,各组样本量依次为61例、64例和64例,分别给予术前饮水300 mL、500 mL和700 mL。于饮水后45 min开始,每15 min进行腹部超声监测,共1~5次,记录膀胱充盈时间和膀胱容量。采用Kaplan-Meier法比较3组患者膀胱充盈时间的差异,并采用多因素Cox回归分析膀胱充盈时间的影响因素。结果A、B、C组患者饮水后105 min累积膀胱充盈率分别为57.4%(35/61)、90.6%(58/64)和98.4%(63/64),膀胱充盈中位生存时间(95%CI)为105.0(89.9~120.1)min、60.0(55.4~64.7)min和60.0(55.4~64.6)min。Kaplan-Meier成对比较结果显示,A组膀胱充盈时间长于B组和C组(均P0.05)。按年龄分层分析结果显示,低龄层(0.05);高龄层(≥35岁)患者膀胱充盈中位生存时间A组与B组之间差异无统计学意义(P>0.05),C组[60.0(59.1~70.9)min]短于A组(105.0 min,P<0.001)和B组[75.0(64.3~85.7)min,P=0.027]。多因素Cox回归分析结果显示,以A组为参考类别,B、C组的风险比(hazard ratio,HR)分别为2.71、3.23,95%CI分别为1.78~4.21、2.10~4.96,均P<0.001;高龄HR为0.69,95%CI为0.49~0.99,P=0.044。结论饮水量和年龄为胚胎移植患者膀胱充盈时间的独立影响因素。胚胎移植患者宜术前75 min饮水500 mL,并对高龄患者适当增加饮水量或延长饮水后膀胱准备时间。

关键词：胚胎移植生殖技术,辅助超声饮水量膀胱

The Application of Project Teaching in The Digital Photography Teaching

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The Application of Project Teaching in The Digital Photograp...

A biomimetic spore nanoplatform for boosting chemodynamic therapy and bacteria-mediated antitumor immunity for synergistic cancer treatment

2013年教育技术与管理科学国际会议

作者： lingling zhong School of Art Engineering Tianjin Vocatinal Institute

The traditional photography teaching method is difficult to meet the needs of digital photography courses. From the current situation of digital photography teaching, this paper discusses the specific methods of project-teaching in digital photography courses and analyses its effects and advantages. This environment can contribute to improving students’ practical abilities and promote the qualities of teaching

关键词： Digital Photography Project Teaching Practice

来源： cnki会议评论

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Asian Journal of Pharmaceutical Sciences 2024年第3期19卷 102-114页

作者： Cuixia Zheng lingling Sun Hongjuan Zhao Mengya Niu Dandan Zhang Xinxin Liu Qingling Song Weijie zhong Baojin Wang Yun Zhang Lei Wang School of Pharmaceutical Sciences Zhengzhou UniversityZhengzhou 450001China Huaihe Hospital of Henan University Translational medicine CenterKaifeng 475000China Pingyuan Lab Henan Normal UniversityXinxiang 453007China Gynecology the Third Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Weihai Municipal Hospital Cheeloo College of MedicineShandong UniversityWeihai 264200China

Bacterial-based antitumor immunity has become a promising strategy to activate the immune system for fighting ***,the potential application of bacterial therapy is hindered by the presence of instability and susceptibility to infections within bacterial ***,monotherapy is ineffective in completely eliminating complex cancer with multiple contributing *** this study,based on our discovery that spore shell(SS)of Bacillus coagulans exhibits excellent tumor-targeting ability and adjuvant activity,we develop a biomimetic spore nanoplatform to boost bacteria-mediated antitumor therapy,chemodynamic therapy and antitumor immunity for synergistic cancer *** detail,SS is separated from probiotic spores and then attached to the surface of liposome(Lipo)that was loaded with hemoglobin(Hb),glucose oxidase(GOx)and JQ1to construct SS@Lipo/Hb/GOx/*** tumor tissue,highly toxic hydroxyl radicals(·OH)are generated via sequential catalytic reactions:GOx catalyzing glucose into H_(2)O_(2)and Fe^(2+)in Hb decomposing H_(2)O_(2)into·*** combination of·OH and SS adjuvant can improve tumor immunogenicity and activate immune ***,JQ1-mediated down-regulation of PD-L1 and Hb-induced hypoxia alleviation synergistically reshape immunosuppressive tumor microenvironment and potentiate immune *** this manner,SS@Lipo/Hb/GOx/JQ1 significantly suppresses tumor growth and *** summarize,the nanoplatform represents an optimum strategy to potentiate bacteria-based cancer immunotherapy.

关键词： Biomimetic spore shell Bacteria-mediated antitumor therapy Chemodynamic therapy Immunotherapy Tumor microenvironment

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企业规模与我国高新技术产品出口增长

东岳论丛 2019年第8期40卷 84-90,192页

作者：杨丽花钟玲玲中国政法大学商学院

促进高技术、高质量、高附加值的高新技术产品出口,是推动我国外贸发展“稳中提质”的首要路径。使用2001-2013年中国工业企业数据库以及2013-2016年BvD-Oriana亚太企业分析库和中国海关进出口数据库匹配的高技术制造业企业样本数据,本... 详细信息

促进高技术、高质量、高附加值的高新技术产品出口,是推动我国外贸发展“稳中提质”的首要路径。使用2001-2013年中国工业企业数据库以及2013-2016年BvD-Oriana亚太企业分析库和中国海关进出口数据库匹配的高技术制造业企业样本数据,本文实证分析了企业规模对我国高新技术产品出口增长的影响。结果表明:企业规模对我国高新技术企业产品出口的影响显著正相关,这一结果在使用不同出口规模代理变量和不同企业规模代理变量进行控制的模型中保持稳健。对生产率的影响、随时间变动的异质性和行业异质性进行进一步分析,结果表明:企业规模的影响并非生产率的结果,而是有其单独的作用渠道;其影响总体不受时间变动异质性和行业异质性影响,尽管程度略有差异。研究结论为促进我国外贸稳中提质提供了新的启示。

关键词：出口增长稳中提质企业规模高新技术产品贸易竞争力

硬管支气管镜联合高频通气在小儿急性纤维蛋白性喉气管支气管炎诊治中的作用

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临床耳鼻咽喉头颈外科杂志 2020年第6期34卷 492-495页

作者：张军梅钟玲玲沈蓓天津市儿童医院耳鼻咽喉头颈外科天津300400

目的:探讨硬管支气管镜联合高频通气在小儿急性纤维蛋白性喉气管支气管炎诊治中的作用。方法:回顾性分析7例小儿急性纤维蛋白性喉气管支气管炎患儿的临床资料。7例均应用硬管支气管镜联合高频通气方式行喉及支气管检查术。术中均于声门... 详细信息

目的:探讨硬管支气管镜联合高频通气在小儿急性纤维蛋白性喉气管支气管炎诊治中的作用。方法:回顾性分析7例小儿急性纤维蛋白性喉气管支气管炎患儿的临床资料。7例均应用硬管支气管镜联合高频通气方式行喉及支气管检查术。术中均于声门下、气管、支气管取出大量膜性痂样内生物。结果:6例入院后紧急行手术治疗,痊愈出院;1例因呼吸衰竭行呼吸机机械通气48 h无好转后行手术取出内生异物,术后终因多器官功能衰竭死亡。7例内生异物病理组织学检查为纤维蛋白性渗出及坏死组织,伴大量炎症细胞浸润。结论:全身麻醉下及时经硬管支气管镜联合高频通气取出堵塞呼吸道的塑型性内生异物是诊断及治疗小儿急性纤维蛋白性喉气管支气管炎的有效方法。一旦疑诊,必须抓紧手术时机,尽快解除呼吸道梗阻,缓解缺氧是减少死亡率的关键。

关键词：纤维蛋白性喉气管支气管炎支气管镜检查喉梗阻高频通气儿童

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基于多传感器融合的飞机货舱火警探测

江苏科技信息 2018年第28期35卷 41-43页

作者：钟玲玲中国民航飞行学院航空工程学院四川广汉618307

文章介绍了目前飞机货舱火警探测系统的探测原理,报警逻辑和运行情况,针对飞机货舱火警探测系统误报率高的问题,在研究火灾探测新技术的基础上,提出了一种基于多传感器融合的探测系统。结合烟雾浓度、CO含量和环境温度传感器的输出信号... 详细信息

文章介绍了目前飞机货舱火警探测系统的探测原理,报警逻辑和运行情况,针对飞机货舱火警探测系统误报率高的问题,在研究火灾探测新技术的基础上,提出了一种基于多传感器融合的探测系统。结合烟雾浓度、CO含量和环境温度传感器的输出信号,利用人工神经网络和模糊推理的相结合的方式来判断火情,尽可能地减少虚假火警。该系统改进了目前飞机货舱火警探测只利用单一烟雾信号,误报率较高的情况,为飞机货舱火警探测系统的发展提供了新方向。

关键词：多传感器融合飞机货舱火灾探测技术人工神经网络模糊推理