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Bioremediation strategies of palm oil mill effluent and landfill leachate using microalgae cultivation:An approach contributing towards environmental sustainability

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Chinese Chemical Letters 2023年第5期34卷 57-71页

作者： Imran Ahmad Natasha Nabila Binti Ibrahim Norhayati Abdullah Iwamoto Koji Shaza Eva Mohamad Kuan Shiong Khoo wai yan cheah Tau Chuan Ling Pau Loke Show Algae and Biomass Research Laboratory Malaysia-Japan International Institute of Technology(MJIIT)Universiti Teknologi Malaysia(UTM)Jalan Sultan Yahya Petra54100Kuala LumpurMalaysia Department of Chemical and Environmental Engineering Faculty of Science and EngineeringUniversity of Nottingham MalaysiaJalan BrogaSemenyih 43500Selangor Darul EhsanMalaysia Centre of Research in Development Social and Environment(SEEDS)Faculty of Social Sciences and HumanitiesUniversiti Kebangsaan Malaysia43600 UKM BangiSelangor Darul EhsanMalaysia Institute of Biological Sciences Faculty of ScienceUniversity of Malaya50603Kuala LumpurMalaysia Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection Wenzhou UniversityWenzhou 325035China Department of Sustainable Engineering Saveetha School of EngineeringSIMATSChennai 602105India

Palm oil mill effluent(POME)is defined as the wastewater that contains high concentrations of organics,nutrients and oil and grease generated from the production process of palm ***,proper discharge and management of POME is important to avoid deleterious impact on the *** fact,solid waste generation is a precursor for its disposal issues as most of the solid waste generated in developing nations is dumped into *** has led to the threat posed by the generation of landfill leachate(LL).LL is a complex dark coloured liquid consisting of organic matter,inorganic substances,trace elements and ***,it is essential to effectively treat the landfill leachate before discharging it to avoid contamination of soil,surface&groundwater *** treatment methods comprises of physical,biological and chemical treatment,however,microalgal-based treatment could also be ***,with the benefits offered by microalgae in valorisation,the application of microalgae in POME and leachate treatment as well as biofuel production,is considerably *** paper provides an acumen of the microalgae-based treatment of POME and LL,integrated with biofuel production in a systematic and critical *** pollutants assimilation from wastewater and CO_(2)biosequestration are discussed for environmental *** systems for wastewater treatment with simultaneous biomass production and its valorisation,are *** study aims to provide insight to industrial stakeholders on economically viable and environmentally sustainable treatment of wastewaters using microalgae,and eventually contributing to the circular bioeconomy and environmental sustainability.

关键词： Microalgae Biofuel Landfill leachate Palm oil mill effluent Treatment Sustainability

A hierarchical salt-rejection strategy for sustainable and high-efficiency solar-driven desalination

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Nano Materials Science 2024年第1期6卷 38-43页

作者： Zhengyi Mao Xuliang Chen Yingxian Chen Junda Shen Jianpan Huang Yuhan Chen Xiaoguang Duan Yicheng Han Kannie wai yan Chan Jian LU CityU-Shenzhen Futian Research Institute Shenzhen518045China Department of Mechanical Engineering City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina Department of Material Science and Engineering City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina Department of Biomedical Engineering City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina School of Chemical Engineering and Advanced Materials The University of AdelaideAdelaideAustralia Hong Kong Branch of National Precious Metals Material Engineering Research Centre City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina Centre for Advanced Structural Materials City University of Hong Kong Shenzhen Research InstituteGreater Bay Joint DivisionShenyang National Laboratory for Materials ScienceShenzhen518057China

Solar steam generation(SSG)is widely regarded as one of the most sustainable technologies for seawater ***,salt fouling severely compromises the evaporation performance and lifetime of evaporators,limiting their practical ***,we propose a hierarchical salt-rejection(HSR)strategy to prevent salt precipitation during long-term evaporation while maintaining a rapid evaporation rate,even in high-salinity *** salt diffusion process is segmented into three steps—insulation,branching diffusion,and arterial transport—that significantly enhance the salt-resistance properties of the ***,the HSR strategy overcomes the tradeoff between salt resistance and evaporation ***,a high evaporation rate of 2.84 kg m^(-2) h^(-1),stable evaporation for 7 days cyclic tests in 20 wt%NaCl solution,and continuous operation for 170 h in natural seawater under 1 sun illumination were *** with control evaporators,the HSR evaporator exhibited a>54%enhancement in total water evaporation mass during 24 h continuous evaporation in 20 wt%salt ***,a water collection device equipped with the HSR evaporator realized a high water purification rate(1.1 kg m^(-2) h^(-1)),highlighting its potential for agricultural applications.

关键词： Solar water evaporation 3D printing Salt-rejection Hierarchical structures High efficiency

Multi-environment BSA-seq using large F3 populations is able to achieve reliable QTL mapping with high power and resolution: An experimental demonstration in rice

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The Crop Journal 2024年第2期12卷 549-557页

作者： yan Zheng Ei Ei Khine Khin Mar Thi Ei Ei Nyein Likun Huang Lihui Lin Xiaofang Xie Min Htay wai Lin Khin Than Oo Myat Myat Moe San San Aye Weiren Wu College of Life Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina Fujian Provincial Key Laboratory of Crop Breeding by Design Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina Key Laboratory of Genetics Breeding and Multiple Utilization of CropsMinistry of EducationFujian Agriculture and Forestry UniversityFuzhou 350002FujianChina Department of Botany Mawlamyine UniversityMon StateMawlamyineMyanmar Department of Botany Dagon UniversityNorth DagonYangonMyanmar

Bulked-segregant analysis by deep sequencing(BSA-seq) is a widely used method for mapping QTL(quantitative trait loci) due to its simplicity, speed, cost-effectiveness, and efficiency. However, the ability of BSA-seq to detect QTL is often limited by inappropriate experimental designs, as evidenced by numerous practical studies. Most BSA-seq studies have utilized small to medium-sized populations, with F2populations being the most common choice. Nevertheless, theoretical studies have shown that using a large population with an appropriate pool size can significantly enhance the power and resolution of QTL detection in BSA-seq, with F_(3)populations offering notable advantages over F2populations. To provide an experimental demonstration, we tested the power of BSA-seq to identify QTL controlling days from sowing to heading(DTH) in a 7200-plant rice F_(3)population in two environments, with a pool size of approximately 500. Each experiment identified 34 QTL, an order of magnitude greater than reported in most BSA-seq experiments, of which 23 were detected in both experiments, with 17 of these located near41 previously reported QTL and eight cloned genes known to control DTH in rice. These results indicate that QTL mapping by BSA-seq in large F_(3)populations and multi-environment experiments can achieve high power, resolution, and reliability.

关键词： BSA-seq QTL mapping Large F3 population Multi-environment experiment Cross-validation

Strong,tough,and thermally conductive nacre-inspired boron nitride nanosheet/epoxy layered nanocomposites

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Nano Research 2024年第2期17卷 820-828页

作者： Huagao Wang Rongjian Lu Lei Li Cheng Liang Jia yan Rui Liang Guoxing Sun Lei Jiang Qunfeng Cheng School of Chemistry Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of EducationBeihang UniversityBeijing 100191China School of Chemistry and Materials Science University of Science and Technology of ChinaHefei 230026China Suzhou Institute for Advanced Research University of Science and Technology of ChinaSuzhou 215123China Department of Stomatology Fifth Medical CenterChinese PLA General HospitalBeijing 100039China Department of Engineering Science Faculty of Innovation EngineeringMacao University of Science and TechnologyAvenida Wai LongTaipaMacao 999078 China Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoAvenida da UniversidadeTaipaMacao 999078China Institute of Energy Materials Science(IEMS) University of Shanghai for Science and TechnologyShanghai 200093China

Thermally conductive polymer nanocomposites integrated with lightweight,excellent flexural strength,and high fracture toughness(KIc)would be of great use in many ***,achieving all of these properties simultaneously remains a great *** by natural nacre,here we demonstrate a lightweight,strong,tough,and thermally conductive boron nitride nanosheet/epoxy layered(BNNEL)*** of the layered structure and enhancing the interfacial interactions through hydrogen bonding and Si–O–B covalent bonding,the resulting nacre-inspired BNNEL nanocomposites show high fracture toughness of~4.22 MPa·m^(1/2),which is 7 folds as high as pure ***,the BNNEL nanocomposites demonstrate sufficient flexural strength(~168.90 MPa,comparable to epoxy resin),while also being lightweight(~1.23 g/cm^(3)).Additionally,the BNNEL nanocomposites display a thermal conductivity(κ)of~0.47 W/(m·K)at low boron nitride nanosheet loading of 2.08 vol.%,which is 2.7 times higher than that of pure epoxy *** developed nacre-inspired strategy of layered structure design and interfacial enhancement provides an avenue for fabricating high mechanical properties and thermally conductive polymer nanocomposites.

关键词： nacre-inspiration nanocomposites flexural strength fracture toughness(KIc) thermal conductivity

铅冶炼场地土壤微生物群落结构与硫氧化菌作用

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Journal of Central South University 2024年第4期31卷 1050-1063页

作者：吴川陈虹任陆永平漆彦婷李海峰罗兴华陈玥如娄伟杨卫春李伟展 School of Metallurgy and Environment Central South UniversityChangsha 410083China Department of Science and Environmental Studies The Education University of Hong KongHong Kong 999007China China Railway Seventh Bureau Group Nanjing Engineering Co. Ltd.Nanjing 210012China Hunan Hikee Environmental Technology Co. Ltd.Changsha 410001China

长期的铅冶炼生产活动给周边地区带来了严重的重金属污染。重金属污染土壤的微生物群落结构和组成对其风险评估和污染修复具有重要意义。本文选择某铅冶炼区域的周边环境,研究重金属污染在垂直剖面上对土壤微生物群落结构和组成的影响... 详细信息

长期的铅冶炼生产活动给周边地区带来了严重的重金属污染。重金属污染土壤的微生物群落结构和组成对其风险评估和污染修复具有重要意义。本文选择某铅冶炼区域的周边环境,研究重金属污染在垂直剖面上对土壤微生物群落结构和组成的影响。结果表明,重金属含量随着土壤垂直深度的增加而逐渐降低,中度污染土壤中微生物群落多样性高于低污染土;无论污染程度如何,表层土壤微生物群落多样性均高于底层;相对丰度优势属包括Perlucidibaca、Limnobacter、Delftia、Hydrogenophaga、Thiobacillus、Sulfurifustis、Sphingopyxis,其中硫氧化菌(SOB)丰度较高。XRD结果表明,土壤中存在PbSO_(4),可能是由于SOB的富集对硫的氧化作用。这种硫循环特征可能是铅(Pb)转化为PbSO_(4)的稳定化修复潜力。

关键词：有色冶炼重金属土壤污染硫氧化菌微生物群落

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铅冶炼场地粉尘重(类)金属的迁移转化

Journal of Central South University 2024年第4期31卷 1036-1049页

作者：高文艳吴凯凯陈婷李伟展陈虹任陈玥如吴昊朱锋李海东吴川薛生国 School of Metallurgy and Environment Central South UniversityChangsha 410083China Department of Science and Environmental Studies The Education University of Hong KongHong Kong 999077China Scientific Research Academy of Guangxi Environmental Protection Nanning 530000China Nanjing Institute of Environmental Sciences Ministry of Ecology and EnvironmentNanjing 210042China

粉尘是铅冶炼场地土壤重(类)金属的来源之一,但粉尘中重(类)金属的迁移转化机制尚不明确。本文系统研究了此过程中重(类)金属的地球化学行为和解离机制。实验结果表明,两类粉尘样品中Pb、Zn、Cd和As的总量和浸出均超过标准,其中,两类粉... 详细信息

粉尘是铅冶炼场地土壤重(类)金属的来源之一,但粉尘中重(类)金属的迁移转化机制尚不明确。本文系统研究了此过程中重(类)金属的地球化学行为和解离机制。实验结果表明,两类粉尘样品中Pb、Zn、Cd和As的总量和浸出均超过标准,其中,两类粉尘中约有80%的Pb、Zn为生物可利用态,底吹炉粉尘中70%以上的As为弱酸提取态,而还原烟化炉粉尘弱酸提取态的重金属为Cd,占比为60%。Pb同位素结果显示,表土中97.12%的Pb来自冶炼过程中排放的粉尘。XRD和MLA结果表明,粉尘中的主要矿物为PbSO_(4)、ZnSO_(4)和CdSO_(4),表土中的矿物主要是石英、方解石、白云石和白云母。利用地球化学模型对主要矿物进行拟合发现,在酸性条件下,Pb、Zn和Cd的解离主要依赖于硫酸盐矿物,而As的解离与氢氧化铁的吸附作用有关。

关键词：铅冶炼粉尘重(类)金属地球化学迁移化学形态污染场地

Non-invasive tests of non-alcoholic fatty liver disease

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Chinese Medical Journal 2022年第5期135卷 532-546页

作者： Guanlin Li Xinrong Zhang Huapeng Lin Lilian yan Liang Grace Lai-Hung Wong Vincent wai-Sun Wong Department of Medicine and Therapeutics The Chinese University of Hong KongHong KongChina State Key Laboratory of Digestive Disease The Chinese University of Hong KongHong KongChina Medical Data Analytics Centre The Chinese University of Hong KongHong KongChina

For the detection of steatosis,quantitative ultrasound imaging techniques have achieved great progress in past *** resonance imaging proton density fat fraction is currently the most accurate test to detect hepatic *** blood biomarkers correlate with non-alcoholic steatohepatitis,but the accuracy is *** liver fibrosis,liver stiffness measurement by transient elastography(TE)has high accuracy and is widely used across the *** resonance elastography is marginally better than TE but is limited by its cost and *** blood biomarkers of fibrosis have been used in clinical trials and hold promise for selecting patients for treatment and monitoring treatment *** article reviews new developments in the non-invasive assessment of non-alcoholic fatty liver disease(NAFLD).Accumulating evidence suggests that various non-invasive tests can be used to diagnose NAFLD,assess its severity,and predict the *** studies are needed to determine the role of the tests as monitoring *** cannot overemphasize the importance of context in selecting appropriate tests.

关键词： Fatty liver Non-alcoholic fatty liver disease Non-alcoholic steatohepatitis Liver fibrosis Cirrhosis Transient elastography FibroScan Magnetic resonance imaging

Gigantic electric-field-induced second harmonic generation from an organic conjugated polymer enhanced by a band-edge effect

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Light(Science & Applications) 2019年第1期8卷 1006-1011页

作者： Shumei Chen King Fai Li Guixin Li Kok wai cheah Shuang Zhang School of Physics and Astronomy University of BirminghamBirmingham B152TTUK Department of Materials Science and Engineering Shenzhen Institute for Quantum Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Department of Physics Hong Kong Baptist UniversityKowloon TongHong KongChina

Electric-field-induced second harmonic generation(EFISH),a third-order nonlinear process,arises from the interaction between the electric field of an external bias and that of two incident *** can be used to dynamically control the nonlinear optical response of materials and is therefore promising for active nonlinear ***,it has been challenging to achieve a strong modulation with EFISH in conventional nonlinear ***,we report a large tunability of an EFISH signal from a subwavelength-thick polymer film sandwiched between a transparent electrode and a metallic *** exploiting the band-edge-enhanced third-order nonlinear susceptibility of the organic conjugated polymer,we successfully demonstrate a gigantic EFISH effect with a modulation ratio up to 422%V^(−1) at a pumping wavelength of 840 *** band-edge-enhanced EFISH opens new avenues for modulating the intensity of SHG signals and for controlling nonlinear electro-optic interactions in nanophotonic devices.

关键词： nonlinear harmonic conjugated

MTBSTFA derivatization-LC-MS/MS approach for the quantitative analysis of endogenous nucleotides in human colorectal carcinoma cells

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Journal of Pharmaceutical Analysis 2022年第1期12卷 77-86页

作者： Huixia Zhang yan Li Zheng Li Christopher wai-Kei Lam Peng Zhu Caiyun Wang Hua Zhou Wei Zhang State Key Laboratory of Quality Research in Chinese Medicines Macao Institute for Applied Research in Medicine and HealthMacao University of Science and TechnologyTaipaMacaoChina

Endogenous ribonucleotides(RNs)and deoxyribonucleotides(dRNs)are important metabolites related to the pathogenesis of many *** light of their physiological and pathological significances,a novel and sensitive pre-column derivatization method with N-(t-butyldimethylsilyl)-N-methyltrifluoroacetamide(MTBSTFA)was developed to determine RNs and dRNs in human cells using high-performance liquid chromatography tandem mass spectrometry(HPLC-MS/MS).A one-step extraction of cells with 85%methanol followed by a simple derivatization reaction within 5 min at room temperature contributed to shortened analysis *** derivatives of 22 nucleoside mono-,di-and tri-phosphates were retained on the typical C;column and eluted by ammonium acetate and acetonitrile in 9 *** these optimal conditions,good linearity was achieved in the tested calibration *** lower limit of quantitation(LLOQ)was determined to be 0.1-0.4μM for the tested RNs and 0.001-0.1μM for *** addition,the precision(CV)was<15%and the RSD of stability was lower than 10.4%.Furthermore,this method was applied to quantify the endogenous nucleotides in human colorectal carcinoma cell lines HCT 116 exposed to *** conclusion,our method has proven to be simple,rapid,sensitive,and *** may be used for specific expanded studies on intracellular pharmacology in vitro.

关键词： Ribonucleotides Deoxyribonucleotides Derivatization N-(t-butyldimethylsilyl)-N-methyltrifluoroacetamide High-performance liquid chromatography tandem mass spectrometry