Article
Environmental Sciences
Wen Li, Wei-Guo Zhang, Ming-Sha Zhang, Zhong-Fang Lei, Peng-Fu Li, Yan Ma, Yan Gao
Summary: This study found that mercury can facilitate the conjugative transfer of antibiotic resistance genes (ARGs) mediated by mobilizable plasmids. Exposure to mercury increased oxidative stress, cell membrane damage, and antioxidant enzyme activities, while decreasing glutathione levels. Additionally, mercury regulated the expression of genes involved in the conjugative transfer process. However, at high concentrations, mercury suppressed the transfer of ARGs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Microbiology
Mareike Gutensohn, Jeffra K. Schaefer, Torben J. Maas, Ulf Skyllberg, Erik Bjorn
Summary: This study reveals that the iron-reducing bacterium G. sulfurreducens tightly controls the production, excretion, and intracellular concentration of cysteine-like low-molecular-mass (LMM) thiols. The production and cellular export of cysteine are linked to the extracellular supply of Fe(II) and cysteine excretion may play a role in cellular trafficking to iron proteins. The conversion of cysteine to penicillamine by G. sulfurreducens is a novel metabolic synthesis, and penicillamine formation increases with external exposure to cysteine.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Environmental Sciences
Esther Barber-Lluch, Mar Nieto-Cid, Juan Santos-Echeandia, Paula Sanchez-Marin
Summary: This study assesses the impact of two types of dissolved organic matter (DOM) on the bioavailability of copper (Cu) to phytoplankton. Results show that at higher Cu concentrations (100 nM), DOM decreases Cu internalisation in phytoplankton, consistent with ASV measurements. However, at lower Cu concentrations (20 nM), organic complexes appear to be partially bioavailable, challenging the general applicability of the biotic ligand model (BLM).
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Inorganic & Nuclear
Sang Woo Lim, Heehun Moon, Dongwon Kim, Ok-Sang Jung
Summary: A procedure for the formation of a nitrate-encapsulating tripalladium(ii) cage via self-assembly of Pd(NO3)(2) with 1,3-bis(dimethyl(pyridin-4-yl)silyl)propane (L) was developed. The self-assembly reaction initially produces spiro-type macrocycles, PdL2, and finally results in transformation into a nitrate-encapsulated cage, [(NO3)@Pd3L6], in the mother liquor.
DALTON TRANSACTIONS
(2021)
Article
Engineering, Environmental
Yilin Zhang, Garret D. Bland, Jiajun Yan, Astrid Avellan, Jiang Xu, Zongyu Wang, Thomas P. Hoelen, Francisco Lopez-Linares, Evan S. Hatakeyama, Krzysztof Matyjaszewski, Robert D. Tilton, Gregory Lowry
Summary: The newly developed polymer nanogel can efficiently remove environmentally relevant mercury species from both produced water and liquid hydrocarbon, showing significant potential for applications.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Anna Irto, Rosalia Maria Cigala, Chiara Alessandrello, Concetta De Stefano, Giuseppe Gattuso, Francesco Crea
Summary: In this study, the speciation of epinephrine (Eph (-)) in the presence of alginate (Alg (2-)) and two metal cations (Cu2+, UO2 (2+)) was investigated under different conditions. The interaction between Eph (-) and Alg (2-) was studied using DOSY NMR as Eph (-) can behave as a zwitterion. The equilibrium constants and their dependence on ionic strength were determined using an extended Debye-Huckel type equation and the SIT approach. The sequestering ability of Eph (-) and Alg (2-) on Cu2+ was evaluated and compared, and the formation of ternary complexes involving Cu2+ and UO2 (2+) was also studied.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Applied
Carlos Hernandez-Tamargo, Bright Kwakye-Awuah, Alexander J. O'Malley, Nora H. de Leeuw
Summary: Classical molecular dynamics simulations were used to study the exchange of Na+ for Hg2+ in different zeolites with varying Si/Al ratios, showing that the efficiency of zeolites in mercury removal from water may be influenced by factors such as pore size and extra-framework ion loadings.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Physical
Yongjie Wang, Lucheng Peng, Zhuoran Wang, Gerasimos Konstantatos
Summary: Silver bismuth sulfide nanocrystals prepared by solution-phase ligand exchange exhibit fully environmentally friendly characteristics and demonstrate high power conversion efficiency, making them promising for low-cost solar cell applications.
ADVANCED ENERGY MATERIALS
(2022)
Article
Environmental Sciences
H. Morais, F. Arenas, C. Cruzeiro, S. Galante-Oliveira, P. G. Cardoso
Summary: This study found that the combined effects of increased temperature and endocrine disruptors have a negative impact on coastal ecosystems, with a greater effect on females. While the individual stressors did not affect gonad maturation, a delay was observed in females when exposed to higher temperature. Therefore, the combination of endocrine disruptors and temperature increase should be a concern.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Yan Pu, Jie Guo, Hao Yang, Liqiao Zhong, Huiwu Tian, Huatang Deng, Xinbin Duan, Shaoping Liu, Daqing Chen
Summary: This study evaluated the effects of environmental-related concentrations of Hg2+ on the growth hormone/insulin-like growth factor (GH/IGF) axis in silver carp. The results showed that Hg2+ exposure leads to growth inhibition and oxidative stress in juvenile silver carp.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Nanoscience & Nanotechnology
Seongwoo Cho, Sung Nam Lim, Hye Seon Kim, Shin Ae Song, Kiyoung Kim, Kuk Young Cho, Ju Young Woo
Summary: A non-toxic method of synthesizing blue-emitting ZnSeTe/ZnSe/ZnS quantum dots has been developed, and air-stable QDs were demonstrated through surface ligand exchange. By increasing the ratio of tellurium, green- and red-emitting QDs were also achieved.
ACS APPLIED NANO MATERIALS
(2022)
Article
Environmental Sciences
Suellen Satyro, Hui Li, Amir M. Dehkhoda, Rhy McMillan, Naoko Ellis, Susan A. Baldwin
Summary: This study compared the removal of selenium using biochar and iron-functionalized steam activated biochar. Iron oxyhydroxide deposits were observed as a possible mechanism for removal of selenium from solutions. Washing the Fe-biochar composites with deionized water reduced nitrate and iron leaching while removing selenium.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Yuqin Wang, Jiang Liu, Van Liem-Nguyen, Shanyi Tian, Siqi Zhang, Dingyong Wang, Tao Jiang
Summary: DOM influences the environmental fate and toxic effects of trace metals such as mercury. Different DOM isolates showed a wide range of binding strengths to Hg(II) due to their heterogeneous properties. DOM chromophores, including aromaticity and molecular weight, are critical indicators of the DOM-Hg affinity in ambient-relevant circumstances. Higher terrestrial DOM led to greater DOM-Hg affinity. UV-Vis and fluorescence spectroscopy can be used to estimate DOM composition and its binding strength with Hg(II). The relationship between logK and DOM properties provides a possible pathway of explanation for the spatial co-variations between Hg(II) concentrations and DOM characters observed in previous field investigations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Nanoscience & Nanotechnology
Xue Ma, Jinghua Zhang, Chong Zhang, Xiaoqing Yang, Ajuan Yu, Yanjie Huang, Shusheng Zhang, Gangfeng Ouyang
Summary: The Zr-based metal-organic framework composite SiO2@50BenzCys was successfully utilized for the selective extraction and enrichment of low-concentration aminothiols in the urine of IgAVN patients. The method showed good precision and accuracy for detecting GSH and Hcy, demonstrating its potential application in urinary biomolecule analysis.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Jessica Cimada da Silva, Daniel M. Balazs, Tyler A. Dunbar, Tobias Hanrath
Summary: Significant advances in the synthesis and processing of colloidal nanocrystals have provided scientists and engineers with a vast library of precisely defined building blocks. Despite the apparent simplicity of fabricating nanocrystal assemblies at a fluid interface, a robust understanding and control of dynamic physicochemical processes are required. In this context, a detailed methodology for self-assembly and attachment of lead chalcogenide nanocrystals at a liquid-gas interface is presented as a model system for the fabrication of mono- and multilayer cubic connected superlattices.
CHEMISTRY OF MATERIALS
(2021)
Article
Engineering, Environmental
Yunyun Li, Jiating Zhao, Huan Zhong, Yongjie Wang, Hong Li, Yu-Feng Li, Van Liem-Nguyen, Tao Jiang, Zhiyong Zhang, Yuxi Gao, Zhifang Chai
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Chemistry, Analytical
Van Liem-Nguyen, Khoa Huynh, Christine Gallampois, Erik Bjorn
ANALYTICA CHIMICA ACTA
(2019)
Article
Multidisciplinary Sciences
Jingying Xu, Moritz Buck, Karin Eklof, Omneya O. Ahmed, Jeffra K. Schaefer, Kevin Bishop, Ulf Skyllberg, Erik Bjorn, Stefan Bertilsson, Andrea G. Bravo
SCIENTIFIC REPORTS
(2019)
Article
Engineering, Environmental
Gbotemi A. Adediran, Liem-Nguyen Van, Yu Song, Jeffra K. Schaefer, Ulf Skyllberg, Erik Bjorn
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Soil Science
Mona N. Hogberg, Ulf Skyllberg, Peter Hogberg, Heike Knicker
SOIL BIOLOGY & BIOCHEMISTRY
(2020)
Article
Engineering, Environmental
Haiyan Hu, Baolin Wang, Andrea G. Bravo, Erik Bjorn, Ulf Skyllberg, David Amouroux, Emmanuel Tessier, Jakob Zopfi, Xinbin Feng, Kevin Bishop, Mats B. Nilsson, Stefan Bertilsson
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Environmental Sciences
Baolin Wang, Mats B. Nilsson, Karin Eklof, Haiyan Hu, Betty Ehnvall, Andrea G. Bravo, Shunqing Zhong, Staffan Akeblom, Erik Bjorn, Stefan Bertilsson, Ulf Skyllberg, Kevin Bishop
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Microbiology
Jeffra K. Schaefer, Rose-Marie Kronberg, Erik Bjorn, Ulf Skyllberg
ENVIRONMENTAL MICROBIOLOGY
(2020)
Article
Environmental Sciences
Staffan Akerblom, Mats B. Nilsson, Ulf Skyllberg, Erik Bjorn, Sofi Jonsson, Bo Ranneby, Kevin Bishop
ENVIRONMENTAL POLLUTION
(2020)
Article
Engineering, Environmental
Yu Song, Gbotemi A. Adediran, Tao Jiang, Shusaku Hayama, Erik Bjorn, Ulf Skyllberg
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Engineering, Environmental
Wei Zhu, Xuewu Fu, Hui Zhang, Chen Liu, Ulf Skyllberg, Jonas Sommar, Ben Yu, Xinbin Feng
Summary: This study reported the results of mercury isotope fractionation during atmosphere-surface exchange, revealing differences in Hg(0) emission from soils affected by background and mercury mining pollution. The emission of Hg(0) from soils is influenced by ambient Hg(0) concentration, and stable Hg isotopes can be used to understand the atmosphere-surface exchange processes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Sofi Jonsson, Van Liem-Nguyen, Agneta Andersson, Ulf Skyllberg, Mats B. Nilsson, Erik Lundberg, Erik Bjorn
Summary: This study investigates the bioaccumulation of mercury in different groups of benthic invertebrates and identifies the factors that control mercury accumulation, including the localization and chemical speciation of mercury in the sediment and the diet composition of the invertebrates.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Ecology
Antti Piironen, Anthony D. Fox, Hakon Kampe-Persson, Ulf Skyllberg, Ole Roland Therkildsen, Toni Laaksonen
Summary: Migratory connectivity is a metric that measures the co-occurrence of migratory animals from different breeding sites, and it can vary throughout the annual cycle. Tracking taiga bean geese, the study found that connectivity can vary at different times during the nonbreeding period, and total counts might underestimate the population size.
POPULATION ECOLOGY
(2023)
Article
Engineering, Environmental
Mareike Gutensohn, Jeffra K. Schaefer, Elena Yunda, Ulf Skyllberg, Erik Bjorn
Summary: In this study, the researchers investigated the combined effects of chemical speciation of divalent, inorganic mercury and cell physiology on microbial formation of methylmercury. They found that low-molecular-mass thiols played a crucial role in enhancing MeHg formation by altering the partitioning and speciation of Hg(II). However, the conversion of cysteine to penicillamine by cells may suppress MeHg formation in cysteine-rich environments like biofilms.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Emily Seelen, Van Liem-Nguyen, Urban Wunsch, Zofia Baumann, Robert Mason, Ulf Skyllberg, Erik Bjorn
Summary: This study demonstrates that the concentration of thiol compounds associated with dissolved organic matter controls the bioavailability of methylmercury in aquatic systems.
NATURE COMMUNICATIONS
(2023)