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Eco-friendly synthesis of gold nanoparticles using Equisetum diffusum D. Don. with broad-spectrum antibacterial, anticancer, antidiabetic, and antioxidant potentials

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Scientific reports 2025年第1期15卷 19246页

作者： Nasir Assad Marzia Batool Laila Muhammad Naeem Ul Hassan Muhammad Fayyaz Ur Rehman Liaqat Ali Muhammad Mustaqeem Barkat Ullah Muhammad Nauman Khan Majid Iqbal Sezai Ercişli Abdullah A Alarfaj Mohammad Javed Ansari Tabarak Malik Institute of Chemistry University of Sargodha Sargodha 40100 Pakistan. Department of Botany Islamia College Peshawar Peshawar 25120 Pakistan. Biology Laboratory University Public School University of Peshawar Peshawar 25120 Pakistan. Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences 11A Datun Road Chaoyang District Beijing 100101 China. University of Chinese Academy of Sciences (UCAS) Beijing 100049 China. Department of Horticulture Agricultural Faculty Ataturk University Erzurum Türkiye. HGF Agro Ata Teknokent Erzurum Türkiye. Department of Botany and Microbiology College of Science King Saud University Riyadh 11451 Saudi Arabia. Department of Botany Hindu College Moradabad (Guru Jambheshwar University Moradabad) Uttar Pradesh 244001 India. Department of Biomedical Sciences Institute of Health Jimma University Jimma 378 Ethiopia. tabarak.malik@ju.edu.et. Division of Research & Development Lovely Professional University 144401 Phagwara India. tabarak.malik@ju.edu.et.

The present study reports, the eco-friendly synthesis of gold nanoparticles (AuNPs) using Equisetum diffusum D. Don. extract, a medicinal plant known for its therapeutic properties. Phytochemicals present in the extract served as reducing and stabilizing agents for synthesizing stable AuNPs with an average size range of 68.8 nm. The biosynthesized AuNPs were characterized using UV-vis spectroscopy, FTIR, XRD, SEM, EDX, and dynamic light scattering (DLS) methods, confirming their stability, morphology, and crystalline nature. The green synthesized ED@AuNPs exhibited promising biological activities, including broad-spectrum antibacterial activity against both Gram-positive and Gram-negative bacteria, with inhibition zones from 24 to 37 mm. The anticancer activity was assessed through an MTT assay against hepatic carcinoma (HePG2) cells, revealing dose-dependent cytotoxicity with maximum inhibition at 200 µg/mL (47.62%). Antidiabetic activity was demonstrated by starch hydrolysis and enzyme kinetics, with significant α-amylase inhibitory activity up to 70.85%, comparable to the standard drug Acarbose. Moreover, antioxidant activity was conformed through FRAP and DPPH assays, indicating strong free radical scavenging activity and reducing ability. The study demonstrates the potential of biosynthesized ED@AuNPs as multifunctional agents with applications in biomedicine, particularly in antibacterial, anticancer, antidiabetic, and antioxidant therapies, offering an eco-friendly and sustainable approach for nanoparticle synthesis.

关键词： Equisetum diffusum Anticancer activity Antidiabetic activity Antioxidant activity Gold nanoparticles Green synthesis

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Links between Western Pacific Subtropical High and vegetation growth in China

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Journal of Geographical Sciences 2018年第1期28卷 3-14页

作者：黄玫郝曼王绍强丹利顾峰雪王昭生巩贺 Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research CAS University of Chinese Academy of Sciences START Temperate East Asia Regional Center and Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric Physics CAS Key Laboratory of Dryland Agriculture Ministry of Agriculture Institute of Environment and Sustainable Development in Agriculture Chinese Academy of Agricultural Sciences

There is a lack of simple ways to predict the vegetation responses to the East Asian Monsoon(EAM) variability in China due to the complexity of the monsoon system. In this study, we found the variation of the Western Pacific Subtropical High(WPSH), which is one of the major components of the EAM, has a profound influence on the vegetation growth in China. When the WPSH is located more to the west of its climate average, the eastern and northwestern parts experience increased yearly-averaged normalized difference vegetation index(NDVI) and gross primary productivity(GPP) by 0.3%–2.2%, and 0.2%–2.2%, respectively. In contrast, when the WPSH is located more to the east of its climate average, the above areas experience decreased yearly-averaged NDVI and GPP by 0.4% to 1.6%, and 1.3% to 4.5%, respectively. The WPSH serves as a major circulation index to predict the response of vegetation to monsoon.

关键词： East Asia monsoon Western Pacific Subtropical High normalized difference vegetation index （NDVI） gross primary productivity （GPP） China

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Towards an actionable One Health approach

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Infectious Diseases of Poverty 2024年第2期13卷 77-82页

作者： Xiao-Xi Zhang Zohar Lederman Le-Fei Han Janna M.Schurer Li-Hua Xiao Zhi-Bing Zhang Qiu-Lan Chen Dirk Pfeiffer Michael P.Ward Banchob Sripa Sarah Gabriël Kuldeep Dhama Krishna Prasad Acharya Lucy J.Robertson Sharon L.Deem Cécile Aenishaenslin Filipe Dantas-Torres Domenico Otranto Delia Grace Yang Wang Peng Li Chao Fu Patrícia Poeta Md.Tanvir Rahman Kokouvi Kassegne Yong-Zhang Zhu Kun Yin Jiming Liu Zhao-Jun Wang Xiao-Kui Guo Wen-Feng Gong Bernhard Schwartländer Ming-Hui Ren Xiao-Nong Zhou School of Global Health Chinese Center for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghaiPeople’s Republic of China Institute of One Health Shanghai Jiao Tong UniversityShanghaiPeople’s Republic of China Medical Ethics and Humanities Unit Hong Kong UniversityHong KongPeople’s Republic of China Center for One Health University of Global Health EquityButaroRwanda College of Veterinary Medicine South China Agricultural UniversityGuangzhouPeople’s Republic of China School of Ecology and Environment Hainan UniversityHaikouHainanPeople’s Republic of China Branch of animal and vector-borne diseases Division of Infectious Disease ControlChinese Center for Disease Control and PreventionBeijingPeople’s Republic of China Centre for Applied One Health Research and Policy Advice Department of Infectious Diseases and Public HealthJockey Club College of Veterinary Medicine and Life SciencesCity University of Hong KongHong Kong SARPeople’s Republic of China Department of Pathobiology and Population Sciences Royal Veterinary CollegeLondonUnited Kingdom Sydney School of Veterinary Science The University of SydneyCamdenAustralia Tropical Disease Research Center Department of Tropical MedicineFaculty of MedicineKhon Kaen UniversityKhon KaenThailand Laboratory of foodborne parasitic zoonoses Department of translational physiologyinfectiology and public healthChair Faculty Committee on InternationalisationFaculty of Veterinary MedicineGhent UniversityMerelbekeBelgium Division of Pathology ICAR-Indian Veterinary Research Institute(IVRI)BareillyUttar PradeshIndia Department of Livestock Services Animal Quarantine Office-KathmanduBudhanilkanthaKathmanduNepal Parasitology Department of Paraclinical SciencesFaculty of Veterinary MedicineNorwegian University of Life SciencesÅsNorway One Government Drive Saint Louis Zoo Institute for Conservation MedicineSt.LouisUSA Groupe de Recherche enÉpidémiologie des Zoonoses et SantéPublique(GREZOSP) Facultéde médecine v

Background Despite the increasing focus on strengthening One Health capacity building on global level,challenges remain in devising and implementing real-world interventions particularly in the Asia-Pacific *** these gaps,the One Health Action Commission(OHAC)was established as an academic community for One Health action with an emphasis on research agenda setting to identify actions for highest *** text This viewpoint describes the agenda of,and motivation for,the recently formed *** the urgent need for evidence to support the formulation of necessary action plans,OHAC advocates the adoption of both bottom-up and top-down approaches to identify the current gaps in combating zoonoses,antimicrobial resistance,addressing food safety,and to enhance capacity building for context-sensitive One Health *** By promoting broader engagement and connection of multidisciplinary stakeholders,OHAC envisions a collaborative global platform for the generation of innovative One Health knowledge,distilled practical experience and actionable policy advice,guided by strong ethical principles of One Health.

关键词： One Health Global Health One Health Action Commission Research agenda

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Simulating potential yields of Chinese super hybrid rice in Bangladesh,India and Myanmar with EPIC model

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Journal of Geographical Sciences 2018年第7期28卷 1020-1036页

作者：王小博王绍强陈敬华崔惠娟吴宜进 N H Ravindranath Atiq Rahman Key Lab of Ecosystem Network Observation and Modelling Institute of Geographic Sciences and Natural Resources Research CAS University of Chinese Academy of Sciences College of Urban and Environmental Sciences Central China Normal University Centre for Sustainable Technologies India Institute of Science Bangladesh Centre for Advanced Studies

In this study, information is collected on the weather, soils, field management and agricultural statistics in the Bangladesh, India and Myanmar（BIM） region. Crop growth parameters within the EPIC（Environmental Policy Integrated Climate） model are calibrated using cultivar data and regional experimental records of indica hybrid rice Fyou498 and Fengliangyou4 in China. Potential yields of rice are then simulated in the BIM region from 1996 to 2005. The effects of local irrigation and fertilization levels on super hybrid rice yield are examined. The potential yields of Chinese hybrid rice at local irrigation and fertilization levels in 2000 and at full irrigation and rational fertilization levels are found to be 10.22 t/ha and 11.33 t/ha, respectively. The potential for increasing monsoon rice production in the study region is 227.71 million tons. The eastern Indo-Gangetic Plain in India, the southeast coast of India Peninsula and the Ayeyarwady Delta in Myanmar have the largest potentials for monsoon rice production. The northeastern and southwestern areas of the Deccan Plateau and the northwestern region of the Indo-Gangetic Plain need to improve irrigation equipment to meet the water-use requirements of high-yield rice. The central and southern plains in Myanmar and northeastern India need greater access to nitrogen fertilization for high-yield rice.

关键词： super hybrid rice potential productivity yield gap EPIC model Belt and Road Initiative

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Prediction of Aboveground Biomass Applied Artificial Neural network Over Three-Rivers Headwater Regions, Qinghai, China

Prediction of Aboveground Biomass Applied Artificial Neural ...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Junbang Wang Guangxin Lu Wei Cao Shaoqiang Wang Ouanqin Shao Guicai Li ArshadAli Shedayi Jiangwen Fan Key Laboratory of Ecosystem Network Observation and Modeling Chinese Academy of Science Beijing China Department of Grassland Science Qinghai University Xining China China Meteorological Administration National Satellite Meteorological Center Beijing China

The grass yield prediction is essential for the decision-making on grazing optimization and remotely sensed NDVI always used for the monitoring of the actual yield, but cannot for its prediction. The artificial neural networks (ANN) was applied to explore the early NDVI and climate data in winter-spring aiming to predict AGB as annual grass yield in the Three-Rivers Headwater Region. The predictor was assessed against the on-ground observations, which showed that the ANN had a better training and validating results with an R 2 of 0.75 and 0.84 respectively, but a lower test result of the R 2 of 0.31. However, the modelled AGB could well explain the observed values ( , and n=963), which indicated the ANN model had the good overall performance. This study provided a fundamental data for livestock management in early stage and the parameters optimization of ecosystem process model on the pixel scale.

关键词： Mathematical model Predictive models Meteorology Artificial neural networks Training Biological system modeling Data models

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Dynamic changes of habitats in China's typical national nature reserves on spatial and temporal scales

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Journal of Geographical Sciences 2018年第6期28卷 778-790页

作者： ZHU Ping HUANG Lin XIAO Tong WANG Junbang Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Re-sources ResearchCASBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Satellite Environment Center Ministry of Environmental ProtectionBeijing 100094China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China

Until 2015,China had established 2740 nature reserves with a total area of 1.47million km^2,covering 14.8%of China’s terrestrial land *** on remote sensing inversion,ecological model simulation and spatial analysis methods,we analyzed the spatial and temporal variations of fractional vegetation coverage(FVC),net primary production(NPP),and human disturbance(HD)in habitats of typical national nature reserves(NNRs)during the first 15 years of the 21st century from 2000 to *** then the three indicators were compared between different NNR types and varied climate *** results showed that(1)the average 5-year FVC of NNRs increased from 36.3%to 37.1%,and it improved in all types of NNRs to some *** annual average FVC increased by 0.11%,0.84%,0.21%,0.09%,0.11%and 0.08%in NNRs of forest ecosystem,plain meadow,inland wetland,desert ecosystem,wild animal and wild plant,respectively.(2)The NPP annually increased by 2.06 g·m^(-2),1.23 g·m^(-2),0.28 g·m^(-2)and 0.4 g·m^(-2)in NNRs of plain meadow,inland wetland,desert ecosystem and wild animal,***,it decreased by 3.45 g·m^(-2)and2.35 g·m^(-2)in NNRs of forest ecosystem and wild plant respectively.(3)In the past 15 years,besides the slight decreases in the NNRs located at the Qinghai-Tibet Plateau and the south subtropical zone,HD enhanced in most of NNRs,especially HD in the warm temperate humid zone increased from 4.7%to 5.35%.

关键词： national nature reserves habitat fractional vegetation coverage net primary production humandisturbance

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Temporal and Spatial Distribution of Evapotranspiration and Its Influencing Factors on Qinghai-Tibet Plateau from 1982 to 2014

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Journal of Resources and Ecology 2019年第2期10卷 213-224页

作者： CUI Mingyue WANG Junbang WANG Shaoqiang YAN Hao LI Yingnian School of the Earth Sciences and Resources China University of Geosciences (Beijing) Beijing 100083 China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academyof Sciences Beijing 100101 China Northwest Institute of Plateau Biology Chinese Academy of Sciences Xining 810001 China School of Geography and Information Engineering China University of Geosciences (Beijing) Wuhan 430074 China National Meteorological Center China Meteorological Administration Beijing 100081 China

Evapotranspiration is the key driving factor of the earth’s water cycle, and an important component of surface water and energy balances. Therefore, it also reflects the geothermal regulation function of ecohydrological process. The Qinghai-Tibet Plateau is the birthplace of important rivers such as the Yangtze River and the Yellow River. The regional water balance is of great significance to regional ecological security. In this study, ARTS, a dualsource remote sensing evapotranspiration model developed on a global scale, is used to evaluate the actual evapotranspiration(ET) in the Qinghai-Tibet Plateau from 1982 to 2014, using meteorological data interpolated from observations, as well as FPAR and LAI data obtained by satellite remote sensing. The characteristics of seasonal. interannual and dynamic changes of evapotranspiration were analyzed. The rates at which meteorological factors contribute to evapotranspiration are calculated by sensitivity analysis and multiple linear regression analysis,and the dominant factors affecting the change of evapotranspiration in the Qinghai-Tibet Plateau are *** results show that:(1) The estimated values can explain more than 80% of the seasonal variation of the observed values(R^2 = 0.80, P < 0.001), which indicates that the model has a high accuracy.(2) The evapotranspiration in the whole year, spring, summer and autumn show significant increasing trends in the past 30 years, but have significant regional differences. Whether in the whole year or in summer, the southern Tibetan Valley shows a significant decreasing trend(more than 20 mm per 10 years), while the Ali, Lhasa Valley and Haibei areas show increasing trends(more than 10 mm per 10 years).(3) Sensitivity analysis and multiple linear regression analysis show that the main factor driving the interannual change trend is climate warming, followed by the non-significant increase of precipitation. However, vegetation change also has a considerable impact, and toge

关键词： evapotranspiration Qinghai-Tibet Plateau climatic factors spatial and temporal distribution

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Sources of uncertainty in exploring rangeland phenology： A case study in an alpine meadow on the central Tibetan Plateau

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Journal of Mountain Science 2017年第9期14卷 1827-1838页

作者： ZHAO Guang-shuai SHI Pei-li Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China University of Chinese Academy of Science Beijing 100049 China China National Forestry Economics and Development Research Center Beijing 100714 China

Global climate change has been found to substantially influence the phenology of rangeland,especially on the Tibetan Plateau. However, there is considerable controversy about the trends and causes of rangeland phenology owing to different phenological exploration methods and lack of ground validation. Little is known about the uncertainty in the exploration accuracy of vegetation ***, in this study, we selected a typical alpine rangeland near Damxung national meteorological station as a case study on central Tibetan Plateau, and identified several important sources influencing phenology to better understand their effects on phenological exploration. We found man-made land use was not easily distinguished from natural rangelands, and therefore this may confound phenological response to climate change in the rangeland. Change trends of phenology explored by four methods were similar, but ratio threshold method(RTM) was more suitable for exploring vegetation phenology in terms of the beginning of growing season(BGS) and end of growing season(EGS). However, some adjustments are needed when RTM is used in extreme drought years. MODIS NDVI/EVI dataset was most suitable for exploring vegetation phenology of BGS and EGS. The discrimination capacities of vegetation phenology declined with decreasing resolution of remote sensing images from MODIS to GIMMS AVHRR datasets. Additionally, distinct trends of phenological change rates were indicated in different terrain conditions, with advance of growing season in high altitudes but delay of season in lower altitudes. Therefore, it was necessary to eliminate interference of complex terrain and man-made land use to ensure the representativeness of natural vegetation. Moreover, selecting the appropriate method to explore rangelands and fully considering the impact of topography are important to accurately analyze the effects of climate change on vegetation phenology.

关键词： Climate change Data quality NDVI Phenological exploration Northern Tibetan Plateau

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Correction to: Tussock microhabitats increase nitrogen uptake by plants in an alpine wetland

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Plant and Soil 2021年第1期469卷 527-527页

作者： Hu, Yi-Heng Zhang, Xiao-Ya Zhang, Kun Song, Ming-Hua Gao, Jun-Qin Dorodnikov, Maxim Soromotin, Andrey Kuzyakov, Yakov School of Ecology and Nature Conservation Beijing Forestry University Beijing China National Plateau Wetlands Research Center Southwest Forestry University Kunming China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China Department of Soil Science of Temperate Ecosystems and Department of Agricultural Soil Science University of Göttingen Göttingen Germany Biogeochemistry of Agricultural Ecosystems University of Göttingen Göttingen Germany Tyumen State University Tyumen Russia Agro-Technological Institute RUDN University Moscow Russia

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A National key R&D Program: Technologies and Guidelines for Monitoring Ecological Quality of Terrestrial ecosystems in China

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Journal of Resources and Ecology 2019年第2期10卷 105-111页

作者： WANG Shaoqiang WANG Junbang ZHANG Leiming XIAO Zhishu WANG Feng SUN Nan LI Daiqing CHEN Bin CHEN Jinghua LI Yue WANG Xiaobo WANG Miaomiao Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Chinese Academy of SciencesBeijing 100101 China College of Resources and Environment University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture. Institute of Zoology Chinese Academy of Sciences Beijing 100101 China Institute of Desertification Studies Chinese Academy of Forestry Beijing 100091 China Key Laboratory of Crop Nutrition and Fertilization Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing 100081 China State Environment Protection Key Laboratory of Regional Eco-process and Function Assessment State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing 100012 China

Ecological quality is defined as the stability, adaptability and resilience of an ecosystem. Monitoring and assessing ecological quality are important bases for China’s ecological civilization construction. The national key research and development program "Technologies and guidelines for monitoring ecological quality of terrestrial ecosystems in China", launched in July 2017, includes plans to study the observation technologies and provide guidelines on the ecological in-situ observation, the regional biodiversity and ecosystem function monitoring and its applications, all of which contribute to national ecological quality assessment. A year after its implementation,some important progress has been achieved, such as building the indicator system for comprehensive monitoring of ecological quality and improvement of the methods, mass data transmission, infrared camera-based monitoring of biodiversity, multi-angle automatic spectral observation systems, and unmanned aerial vehicle(UAV) based desert monitoring. We have organized this special issue and attempted to introduce the monitoring techniques and assessment methods on ecological quality from different perspectives in order to further promote the development of ecology and its observation methods.

关键词： ecological quality ecological factors biodiversity ecosystem function monitoring technology monitoring guideli nes

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