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Journal of Environmental Sciences 2024年第3期137卷 310-320页

作者： Chunyan Ma Jushuang Pan Cheng Chen Yuanyuan Dong Feng Yao Fengbang Wang maoyong song Key Laboratory of Environmental Nanotechnology and Health Effects Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China No.52 Institute of China North Industries Group Yantai Branch Co.Ltd. Yantai 264000China

The rapid deactivation of cost-effective MnO_(2)-based catalysts in humid air limits their application in practice,and the identification of the role of water in an oxidation process is significant for developing water-resistant MnO_(2)-based ***,CuMnO_(2)showed a20.3%HCHO conversion in 10 hr at room temperature in humid air with relative humidity of 40%,but deactivated in 3 hr in dry *** excellent activity and stability of HCHO oxidation in humid air were attributed to the positive effect of H_(2)O on HCHO oxidation to the H_(2)O-HOCH_(2)OH supermolecule assemblies via hydrogen bonds formed on CuMnO_(2).H_(2)O-HOCH_(2)OH supermolecule assemblies tend to be oxidized to carbonate,which is further oxidized to CO_(2).Furthermore,CuMnO_(2)exhibited a much poorer activity of CO oxidation in humid air,but the CO conversion was still 100%in 10 hr in dry air.H_(2)O showed a competitive adsorption effect to CO on CuMnO_(2).CuMnO_(2)could be applied in HCHO elimination in humid air and CO elimination in dry air.

关键词： H_(2)O-HOCH_(2)OH supermolecule HCHO oxidation Humid air CuMnO_(2) CO oxidation

典型环境持久性有机污染物内暴露与癌症的研究进展

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环境与职业医学 2024年第4期41卷 442-450页

作者：马学瑞童婉靖张艺嘉张文娟梁勇宋茂勇江汉大学环境与健康学院/持久性有毒污染物环境与健康危害湖北省重点实验室湖北武汉430056 中国科学院生态环境研究中心环境化学与生态毒理学国家重点实验室北京100085

环境污染与癌症的发生发展密切相关,化学致癌物是诱发人类癌症最主要的环境因素,其中持久性有机污染物(POPs)具有分布广泛、持久性和蓄积性等特点,近年来关于POPs致癌效应的相关研究受到密切关注。本文综述了环境中五类典型POPs,即多环... 详细信息

环境污染与癌症的发生发展密切相关,化学致癌物是诱发人类癌症最主要的环境因素,其中持久性有机污染物(POPs)具有分布广泛、持久性和蓄积性等特点,近年来关于POPs致癌效应的相关研究受到密切关注。本文综述了环境中五类典型POPs,即多环芳烃(PAHs)、多氯联苯(PCBs)、全氟与多氟烷基化合物(PFAS)、溴代阻燃剂(BFRs)和短链氯化石蜡(SCCPs)的内暴露水平,与癌症发生风险的相关性及潜在的致癌机制。这五类POPs的致癌机制各不相同,包括干扰细胞增殖周期、改变表观遗传和促进氧化应激等,还可通过改变能量代谢与影响免疫功能来促进癌症进展。癌症进程是内在遗传因素和外在环境因素共同作用的结果,除了关注环境POPs对生物体遗传物质的影响外,还应该关注POPs对肿瘤免疫、血管生成等肿瘤微环境的影响,这对今后环境污染的防控和癌症的精准医疗具有指导意义。

关键词：持久性有机污染物内暴露癌症致癌机制

Enhanced depolluting capabilities of microbial bioelectrochemical systems by synthetic biology

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Synthetic and Systems Biotechnology 2023年第3期8卷 341-348页

作者： Le Tao maoyong song Guibin Jiang Key Laboratory of Environmental Nanotechnology and Health Effects Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing100085China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of ScienceBeijing100085 University of Chinese Academy of Sciences Beijing100049China

Microbial bioelectrochemical system(BES)is a promising sustainable technology for the electrical energy recovery and the treatment of recalcitrant and toxic *** microbial BESs,the conversion of harmful pollutants into harmless products can be catalyzed by microorganisms at the anode(Type I BES),chemical catalysts at the cathode(Type II BES)or microorganisms at the cathode(Type III BES).The application of synthetic biology in microbial BES can improve its pollutant removing *** biology techniques can promote EET kinetics,which is helpful for microbial anodic electro-respiration,expediting pollutant removing not only at the anode but also at the *** offer tools to promote biofilm development on the electrode,enabling more microorganisms residing on the electrode for subsequent catalytic reactions,and to overexpress the pollutant removing-related genes directly in microorganisms,contributing to the pollutant *** this work,based on the summarized aspects mentioned above,we describe the major synthetic biology strategies in designing and improving the pollutant removing capabilities of microbial ***,we discuss challenges and perspectives for future studies in the area.

关键词： Microbial bioelectrochemical system Extracellular electron transfer Synthetic biology Pollutant removing

Heavy metals in maternal and cord blood in Beijing and their efficiency of placental transfer

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Journal of Environmental Sciences 2019年第6期31卷 99-106页

作者： Aijing Li Taifeng Zhuang Jianbo Shi Yong Liang maoyong song Institute of Environment and Health Jianghan University Key Laboratory of Environmental Nanotechnology and Health Effects Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Department of Pediatrics Beijing Obstetrics and Gynecology Hospital Capital Medical University University of Chinese Academy of Sciences

This study aimed to determine the effect of exposure to heavy metals in pregnant women in Beijing, China. We also evaluated the association of these heavy metals with birth weight and length of newborns. We measured the levels of 10 heavy metals,including lead(Pb), titanium(Ti), manganese(Mn), nickel(Ni), cadmium(Cd), chromium(Cr), antimony(Sb), stannum(Sn), vanadium(V), and arsenic(As), in 156 maternal and cord blood pairs. An inductively coupled plasma mass spectrometry method was used for measurement. Pb, As, Ti, Mn, and Sb showed high detection rates(> 50%) in both maternal and cord blood. Fourteen(9%) mothers had blood Pb levels greater than the United States Center for Disease Control allowable threshold limit for children(50 μg/L).In prenatal exposure to these heavy metals, there was no significant association between any heavy metal and birth weight/length. Moreover, we estimated the placental transfer efficiency of each heavy metal, and the median placental transfer efficiency ranged from 49.6%(Ni) to 194%(Mn)(except for Cd and Sn). The level and detection rate of Cd in maternal blood were much higher than that in cord blood, which suggested that Cd had difficulty in passing the placental barrier. Prospective research should focus on the source and risk of heavy metals in non-occupationally exposed pregnant women in Beijing.

关键词： Heavy metal Maternal blood Cord blood Newborn Placental transfer efficiency

Improved preparation and identification of aristolochic acid-DNA adducts by solid-phase extraction with liquid chromatography-tandem mass spectrometry

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Journal of Environmental Sciences 2009年第12期21卷 1769-1776页

作者： GAO Haiyan GUO Fangqiu FENG Feng YIN Junfa song maoyong WANG Hailin State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China Research Center of Modernization of Chinese Medicines Central South University Changsha 410083 China

Aristolochic acid （AA） is a known nephrotoxin and potential carcinogen, which can form covalent DNA adducts after metabolic activation in vivo and in vitro. A simple method for preparation and characterization of aristolochic acid-DNA adducts was developed. Four AA-adducts were synthesized by a direct reaction of AAI/AAII with 2′-deoxynucleosides. The reaction mixture was first cleaned-up and pre-concentrated using solid phase extraction （SPE）, and further purified by a reversed-phase high performance liquid chromatography （HPLC）. By the application of developed SPE procedure, matrices and byproducts in reaction mixture could be greatly reduced and adducts of high purity （more than 94% as indicated by HPLC） were obtained. The purified AA-DNA adducts were identified and characterized with liquid-electrospray ionization-quadrupole-time of flight-mass spectrometry （LC-ESI-Q-TOF-MS/MS） and LC-Diode array detector-fluorescence （LC-DAD-FL） analysis. This work provides a robust tool for possible large-scale preparation of AA-DNA adduct standards, which can promote the further studies on carcinogenic and mutagenic mechanism of aristolochic acids.

关键词： aristolochic acid DNA adducts solid phase extraction quadrupole time-of-flight tandem mass spectrometry

A sustained-release microcarrier effectively prolongs and enhances the antibacterial activity of lysozyme

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Journal of Environmental Sciences 2023年第7期129卷 128-138页

作者： Mei Du Jingzhang Liu Fengbang Wang Lei Bi Chunyan Ma maoyong song Guibin Jiang State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of ScienceBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

Bacterial infections have become a great threat to public health in recent years.A primary lysozyme is a natural antimicrobial protein;however,its widespread application is limited by its ***,we present a poly(N-isopropylacrylamide)hydrogel inverse opal particle(PHIOP)as a microcarrier of lysozyme to prolong and enhance the efficiency against *** PHIOP-based lysozyme(PHIOP-Lys)formulation is temperature-responsive and exhibits long-term sustained release of lysozyme for up to 16 *** shows a potent antibacterial effect toward both Escherichia coli and Staphylococcus aureus,which is even higher than that of free lysozyme in solution at the same ***-Lys were demonstrated to effectively inhibit bacterial infections and enhance wound healing in a full-thickness skin wound rat *** study provides a novel pathway for prolonging the enzymatic activity and antibacterial effects of lysozyme.

关键词： Bacterial infection Lysozyme Temperature-responsive Inverse opal particle Wound healing

Vitellogenic responses of male Chinese loach (Misgurnus anguillicaudatus) exposed to the individual or binary mixtures of 17β-estradiol and nonylphenol

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Chinese Science Bulletin 2007年第24期52卷 3333-3338页

作者： LU XueFei ZHOU QunFang song maoyong JIANG GuiBin SHAO Jing State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Beijing100085 China

Male Chinese loaches were exposed to 17β-estradiol (E2) and nonylphenol (NP) both singly and in combination for 42 days using semi-static waterborne exposure system. Plasma vitellogenin (Vtg) was chosen as determining endpoint. The results demonstrated that 0.5 μg/L E2 could induce the enhancement of Vtg contents in male Chinese loaches after exposure for 21 days, which showed a time-related increasing manner; NP was also estrogenic to male Chinese loach, and the vitellogenic responses showed in a time-and dose-related manner, which was less potent than that of E2. The bi- nary mixtures of E2 and NP can significantly elicit the production of Vtg in male Chinese loaches, which was more potent than that of individual compounds, and Vtg induced in the binary mixture groups was higher than the summation of Vtg induced in the corresponding single-compound groups at the same concentration.

关键词：化学相互作用内分泌 17β-雌二醇卵黄蛋白原

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斑马鱼在化学品高通量毒性评价中的应用

环境化学 2024年第1期43卷 47-59页

作者：王俊刘力徐颖君刘俊杰程波张蒙庞少臣梁勇宋茂勇武汉工程大学环境生态与生物工程学院武汉430205 江汉大学持久性有毒污染物环境与健康危害湖北省重点实验室环境与健康学院武汉430056 中国科学院生态环境研究中心环境纳米技术与健康效应重点实验室北京100085

随着全球化学品数量的不断增加,传统的哺乳动物毒性评价方式已经无法满足化学品环境监管的需求.21世纪毒性测试转变成以高通量体外测试和非哺乳类动物模型替代方法为主的新模式.斑马鱼既有生物复杂度又具一定的分析通量,是高通量的药物... 详细信息

随着全球化学品数量的不断增加,传统的哺乳动物毒性评价方式已经无法满足化学品环境监管的需求.21世纪毒性测试转变成以高通量体外测试和非哺乳类动物模型替代方法为主的新模式.斑马鱼既有生物复杂度又具一定的分析通量,是高通量的药物筛选和化学品毒性测试中重要的动物模型.本文综述了斑马鱼在化学品高通量毒性评价中应用的重要研究进展,分析了多种自动化技术在斑马鱼高通量分析中的优势和潜力,最后探讨了斑马鱼高通量毒性测试未来的发展方向.本文为研究人员高效利用斑马鱼胚胎开展化学品安全性评价提供参考.

关键词：高通量毒性筛查风险评估斑马鱼化学品

Dissolved organic matter-mediated reduction of ionic Au(Ⅲ)to elemental Au nanoparticles and their growth to visible granules

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Chinese Chemical Letters 2020年第7期31卷 1970-1973页

作者： Ying Chen Yingying Guo Guangliang Liu maoyong song Yong Cai Yongguang Yin Stare Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of Sciences.Beijing 100085China University of Chinese Academy of Sciences Beijing 100085China Laboratory of Environmental Nanotechnology and Health Effect Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Department of Chemistry and Biochemistry Florida International UniversityMiamiFL 33199United States Institute of Environment and Health Jianghan UniversityWuhan430056China

The biogeochemical transformation of gold(Au),*** dissolution and re-precipitation,is critical in supergene transport of Au and formation of Au *** biogenic reduction,the formation Au granules can also be driven by chemical *** studies have showed the fo rmation of Au nanoparticles(AuNPs)from ionic Au(Ⅲ)can be mediated by dissolved organic matter under *** this letter,we further demonstrated that these AuNPs can further slowly(in years)grow into visible Au *** sized nano-flower and fractal dendrite-like branched gold structures(from tens of nanometres to over 100μm)were observed in the Au granule *** growth of AuNPs into visible Au granules may play a critical role in the supergene mineralization and enrichment of secondary Au and drive the biogeochemical cycle of Au.

关键词： Gold granule Gold nanoparticle Dissolved organic matter Photochemical reduction Mineralization

Effects of environmental contaminants on fertility and reproductive health

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Journal of Environmental Sciences 2019年第3期31卷 210-217页

作者： Yanmin Ma Xin He Keyan Qi Tong Wang Yongchao Qi Lele Cui Fengbang Wang maoyong song Reproductive Center Beijing Obstetrics and Gynecology Hospital Capital Medical University Department of Clinical Laboratory Beijing Obstetrics and Gynecology Hospital Capital Medical University Key Laboratory of Environmental Nanotechnology and Health Effects Research Center for Eco-Environmental Sciences Chinese Academy of Sciences University of Chinese Academy of Sciences

Recent research indicates that the human infertility rate is increasing. Although various reasons have been hypothesized for the growing infertility rate, environmental contaminants are potentially important causal agents associated with this *** contaminants are widespread throughout our environment and human exposure is virtually unavoidable. The overall contribution of environmental exposure to infertility is unknown, but studies involving occupational exposure, together with results from animal experiments, suggest that environmental contaminants may adversely affect fertility. We reviewed the adverse effects of environmental exposure on fertility and related reproductive outcomes. Environmental contaminants covered in this review include heavy metals, organic solvents, pesticides and endocrine disrupting chemicals. It is hoped that this review will highlight the need for further research in this area.

关键词： Infertility Reproductive health Environmental contaminants Exposure Adverse effects