Article
Environmental Sciences
Binghong Qian, Yi Zhao, Meixia Fan, Wenlin Zhou, Shanshan Feng, Yan Wang, Yanwei Li, Baoyu Gao
Summary: The study investigated the effects of natural organic matters (NOMs) including humic acid (HA), alginate (AA), and bovine serum albumin (BSA) on the release of silver from sludgeC-AgNPs. The results showed that HA, AA, and BSA could enhance the release of silver from the sludgeC-AgNPs, with different mechanisms controlling the release process in each NOM solution. The size distribution of colloidal silver particles released in the BSA solution was larger compared to the HA and AA solutions. The properties of NOMs were identified as key factors affecting the transfer of AgNPs from sludge to the terrestrial environment.
Review
Engineering, Environmental
Minxiang Wei, Qianqian Xiang, Peng Wang, Liqiang Chen, Meijie Ren
Summary: The widespread use of silver nanoparticles (AgNPs) has led to their presence in aquatic systems and the release of silver ions (Ag+), posing potential risks to the environment and human health. The transformation between AgNPs and Ag+ has been a subject of research due to their differing toxicities. Dissolved organic matter (DOM) is pervasive in the environment and plays a role in these transformations. However, conflicting results from previous studies under different experimental conditions make it difficult to predict the fate of AgNPs in specific reactions.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Zhineng Hao, Fasong Li, Rui Liu, Xiaoxia Zhou, Yujing Mu, Virender K. Sharma, Jingfu Liu, Guibin Jiang
Summary: The formation of silver nanoparticles in the atmosphere via reduction of Ag(I) by SO2 in moist environments is a previously unreported phenomenon, involving complex chemical processes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Wei Zou, Sai Ma, Haiwen Ma, Guoqing Zhang, Zhiguo Cao, Xingli Zhang
Summary: The investigation of the fate and hazard of molybdenum disulfide (MoS2) nanosheets in water processing is crucial due to their potential widespread applications. It was found that humic acid (HA) showed better stabilization performances towards MoS2 in electrolyte solutions compared to fulvic acid (FA), with the effects depending on the molecular weight (MW) due to steric repulsions. Visible light irradiation facilitated the aggregation and sedimentation of MoS2, especially in the presence of HA and FA, through stronger plasmonic dipole-dipole interaction and Van der Waals attraction forces. HA-induced structural disintegration of MoS2 nanosheets was more significant with increasing MWs, while FA caused faster dissolution of MoS2 due to higher generation of singlet oxygen. Moreover, FA effectively reduced the bioavailability and toxicity of MoS2 to zebrafish compared to HA. These findings provide insights into the effects of organic molecules on the fate and hazards of MoS2, guiding its nanotechnological development in the environment.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Analytical
Moustafa Zahran, Ziad Khalifa, Magdy A-H Zahran, Magdi Abdel Azzem
Summary: A simple, green, and sensitive electrochemical inhibition sensor based on silver nanoparticles was developed for the determination of chlorpyrifos in natural water, showing promising application potential with accepted recovery values.
MICROCHEMICAL JOURNAL
(2021)
Article
Engineering, Environmental
Dingyuan Liang, Wenhong Fan, You Wu, Ying Wang
Summary: The influence of natural organic matter (NOM) on the behavior and toxicity of silver nanoparticles (Ag NPs) along the food chain was investigated in this study. The results showed that NOM could reduce the toxicity of Ag NPs to bacteria and protozoa by different mechanisms. Furthermore, Ag NPs could be transferred and biomagnified to protozoa through trophic transfer.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Zhenxiang Liu, Kaijun Wang, Kaizhao Wang, Huaming Deng, Weijun Zhang, Jin Hu
Summary: Sn-3.0Ag-0.5Cu nanoalloy powders were prepared and analyzed in terms of microstructure, phase composition, and melting behavior. The surfactants 1,10-phenanthroline and PVP were found to have a synergistic effect on controlling the particle size, resulting in an average particle size of about 19 nm. The powder consists of three phases and has an initial melting temperature close to that of conventional Sn/Pb solder.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Environmental Sciences
Ludovico Pontoni, Valentina Roviello, Marco Race, Luigi Savignano, Eric D. van Hullebusch, Giovanni Esposito, Francesco Pirozzi, Massimiliano Fabbricino
Summary: Natural organic matter (NOM) extracted from Sphagnum peat soil self-organizes into colloidal aggregates of variable sizes in water, stabilized by the exposure of polar functional groups to solvent, forming hydrogen bonds and dipole interactions. The inner part of the aggregates displays hydrophobic features and is further reinforced by p-stacking interactions.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Physical
Haya Alsubaie, Zoya Zaheer, Elham Shafik Aazam
Summary: In this study, Silver nanoparticles (AgNPs) were prepared using SDS and CTAB stabilizers for the reduction of silver nitrate with proanthocyanidines. The SPR intensity of AgNPs increased with SDS and remained constant at higher concentrations, while CTAB had no effect on the nucleation of AgNPs. The position of SPR band was influenced by the concentration of Pas, and the capping action of SDS was discussed using various spectroscopic and microscopic techniques.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Tingru Chang, Alexander Khort, Anher Saeed, Eva Blomberg, Maria Bille Nielsen, Steffen Foss Hansen, Inger Odnevall
Summary: The increasing applications and production of engineered nanoparticles pose a higher risk of their environmental dispersion. Understanding the surface transformation and dissolution of nanoparticles is crucial for risk assessment and regulation. The presence of organic matter in freshwater results in negative surface charges of nanoparticles, reducing agglomeration and increasing concentration. The dissolution of nanoparticles is exposure and time-dependent, independent of particle types, surface conditions, or organic matter adsorption.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yanlong Wang, Cheng Lei, Daohui Lin
Summary: The study demonstrates that natural DOM can generally expand the environmental distribution of ENMs while limiting their toxicity to organisms.
CHINESE JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Ioana Ghiuta, Catalin Croitoru, Joseph Kost, Rodica Wenkert, Daniel Munteanu
Summary: This study investigated the synthesis of silver and silver chloride nanoparticles mediated by microbes and assessed their potential application in antimicrobial activity.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Nazmiye Cemre Birben, Ezgi Lale, Renato Pelosato, Nazli Turkten, Isabella Natali Sora, Miray Bekbolet
Summary: This study further assessed the influence of various NOM representatives on the SPCI of E. coli using LF as a photocatalyst. Results showed that both kinetics and mechanism of LF SPCI of E. coli in the presence of NOM compounds displayed substrate-specific variations.
Article
Chemistry, Multidisciplinary
Bogumil Brycki, Adrianna Szulc, Mariia Babkova
Summary: The synthesis of AgNPs stabilized by gemini surfactants with hexadecyl substituent and variable structure of spacer was conducted via ecofriendly synthesis. UV-Vis spectroscopy and dynamic light scattering were used as analyzing tools to confirm physicochemical characterization of the AgNPs.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Corina Petronela Musteret, Irina Morosanu, Ramona Ciobanu, Oana Plavan, Andreea Gherghel, Malek Al-Refai, Ioana Roman, Carmen Teodosiu
Summary: Natural organic matter (NOM) is a key factor affecting drinking water quality, and coagulation-flocculation (C/F) is one of the most commonly used processes for NOM removal. This study investigated the efficiency of C/F in different temperatures for river water supply, using polyhydroxy aluminum chloride and polyacrylamide as coagulant and flocculant. Multiple water quality indicators and unconventional parameters were analyzed to determine the optimal coagulation-flocculation conditions.
Article
Chemistry, Applied
Qian Yang, Jing Lei, Darren D. Sun, Dong Chen
SEPARATION AND PURIFICATION REVIEWS
(2016)
Article
Microbiology
Tanya Soule, Dexter Shipe, Justin Lothamer
CURRENT MICROBIOLOGY
(2016)
Article
Environmental Sciences
Zhihui Yang, Shuang Luo, Zongsu Wei, Tiantian Ye, Richard Spinney, Dong Chen, Ruiyang Xiao
ENVIRONMENTAL POLLUTION
(2016)
Article
Environmental Sciences
Norman Lu, Yun-Peng Yeh, Guan-Bo Wang, Tsung-Yao Feng, Yang-hsin Shih, Dong Chen
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2017)
Article
Environmental Sciences
Dong Chen, Paul Szostak, Zongsu Wei, Ruiyang Xiao
SCIENCE OF THE TOTAL ENVIRONMENT
(2016)
Article
Engineering, Environmental
Shen-Ming Chen, Norman Lu, Jun-Yu Chen, Cheng-Yu Yang, Yun-Peng Yeh, Tsung-Yao Feng, Yang-hsin Shih, Thangavelu Kokulnathan, Dong Chen
WATER SCIENCE AND TECHNOLOGY
(2017)
Article
Multidisciplinary Sciences
James T. Price, Frank V. Paladino, Margaret M. Lamont, Blair E. Witherington, Scott T. Bates, Tanya Soule
Article
Engineering, Environmental
Shuang Luo, Zongsu Wei, Richard Spinney, Frederick A. Villamena, Dionysios D. Dionysiou, Dong Chen, Chong-Jian Tang, Liyuan Chai, Ruiyang Xiao
JOURNAL OF HAZARDOUS MATERIALS
(2018)
Article
Engineering, Chemical
Dong Chen, Carlos Pomalaza-Raez
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Microbiology
Ferran Garcia-Pichel, Jonathan Lombard, Tanya Soule, Sean Dunaj, Steven H. Wu, Martin F. Wojciechowski
Article
Engineering, Environmental
Jialin Chen, Jianyong Liu, Jingshu Zhou, Dong Chen
JOURNAL OF WATER PROCESS ENGINEERING
(2020)
Article
Biochemistry & Molecular Biology
Tanya Soule, Daniela Ferreira, Justin Lothamer, Ferran Garcia-Pichel
Summary: Research on cyanobacteria's responses to UVA, UVB, and ROS stressors shows that UVB and ROS provoke a more active and varied reaction compared to UVA. The study highlights the importance of considering multiple stress conditions and their impacts on gene expression and biological systems.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2021)
Article
Engineering, Environmental
Jialin Chen, Ruina Zhang, Dong Chen, Jianyong Liu, Shanping Chen
Summary: The UV-enhanced generation of CO radical in the Fe(III)-oxalate system improves nitrate reduction to nitrogen with increased product selectivity. pH plays a key role in the NO reduction process, and higher concentrations of Fe(III) and oxalate promote NO3- removal and N-2 production.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Microbiology
Janine Bennett, Tanya Soule
Summary: The aim of this study is to investigate the response of scytonemin biosynthesis genes to various environmental conditions. The results show that UVA, UVB, and high light can upregulate the expression of scytonemin genes, although scytonemin pigment is not produced under high light. There is no synthesis of scytonemin or upregulation of these genes under osmotic stress.
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)