Article
Chemistry, Physical
Taoyu Yang, Deyou Yu, Dong Wang, Tao Yang, Zexiong Li, Minghua Wu, Michal Petru, John Crittenden
Summary: The Fenton-like performance of Fe-MOFs was improved by manipulating the structure of iron-oxo nodes with Fe(II) substitution, resulting in a material with stronger active sites and higher density of Fe(III) coordinatively unsaturated iron centers. This enhancement facilitated the rapid activation of H2O2 and efficient degradation of pollutants.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Microbiology
Anna-Neva Visser, Scott D. D. Wankel, Claudia Frey, Andreas Kappler, Moritz F. F. Lehmann
Summary: In this study, the effect of different organic substrates (short-chained organic acids) and the presence/absence of Fe(II) on nitrogen and oxygen isotope fractionation dynamics during nitrate and nitrite reduction were investigated. The results showed that the isotope effects obtained under heterotrophic and mixotrophic growth conditions were very similar and consistent with previous studies, indicating a lack of distinct differences caused by organic substrates and Fe(II).
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Engineering, Environmental
Tao Yang, Linqian An, Ge Zeng, Maoju Jiang, Juan Li, Changyu Liu, Jianbo Jia, Jun Ma
Summary: This study investigates the efficiency and mechanism of Fe(II)/PAA and PAA processes in oxidizing p-ASA and As(III). Fe(II)/PAA process rapidly degrades p-ASA to the toxic As(V) at neutral to acidic pHs, while PAA process is effective in oxidizing As(III). The generation of hydroxyl radicals and organic radicals from PAA contributes to the degradation of p-ASA, and PAA shows potential for the oxidation of As(III).
Article
Chemistry, Inorganic & Nuclear
Tobias J. Sherbow, Lev Zakharov, Michael D. Pluth
Summary: Recent studies have shown that metal-sulfur coordination compounds can regulate reactive sulfur species (RSS) transport. The reaction of B-Ph-((t)BuIm)(3)NiCl with RSS leads to the formation of square planar complexes through protonation of a carbene ligand donor atom. Mechanistic investigation suggest that protonation may occur from the decomposition of reactants, interactions with favorable counterions, or generation of transient unidentified RSS.
INORGANIC CHEMISTRY
(2021)
Article
Biotechnology & Applied Microbiology
Nanqing Zhou, Jessica L. Keffer, Shawn W. Polson, Clara S. Chan
Summary: This study explored the physiology and gene expression of a facultative Fe(II)-oxidizing bacterium, revealing a direct connection between Fe(II) oxidation and carbon fixation.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Bartosz Orzel, Alessio Pelucelli, Malgorzata Ostrowska, Slawomir Potocki, Henryk Kozlowski, Massimiliano Peana, Elzbieta Gumienna-Kontecka
Summary: The interactions between two peptide ligands derived from the cytoplasmic C-terminal region of Escherichia coli FeoB protein and Fe(II), Mn(II), and Zn(II) ions were investigated. The study revealed the crucial role of the Feo system in bacterial Fe(II) acquisition and the mechanism of metal ion trafficking in the complex intracellular environment. The specificity and metal-binding modes of the C-terminal region of E. coli FeoB protein were explored.
INORGANIC CHEMISTRY
(2023)
Article
Engineering, Environmental
Zheng-Yu Dong, Yi-Li Lin, Tian -Yang Zhang, Chen-Yan Hu, Yang Pan, Renjie Pan, Yu-Lin Tang, Bin Xu, Nai-Yun Gao
Summary: In this study, a Mn(VII)-Fe(III)/PMS process was proposed to improve the performance of the conventional coagulation process. It was found that this process can effectively remove dissolved organic carbon, turbidity, and micropollutants. The formation potential of disinfection by-products was also reduced. The reaction mechanism of this process was elucidated.
Article
Engineering, Environmental
Liu Yang, Daliang Xu, Xinsheng Luo, Xuewu Zhu, Jing Zhao, Jialin Song, Yonghui Han, Guibai Li, Xinlei Gao, Luming Liu, Heng Liang
Summary: A conductive electrocatalytic membrane decorated with Fe(II)-FeCo LDH nanosheets was fabricated to enhance the oxidation efficiency of organic microcontaminants. The membrane exhibited improved reactivity and degradation rate, which were significantly higher than those of the bare carbon nanotube membrane.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Sonia Guerra-Rodriguez, Nerea Cediel, Encarnacion Rodriguez, Jorge Rodriguez-Chueca
Summary: The study investigated the efficacy of a sulfite system activated by different iron species and/or UV-A radiation in inactivating Enterococcus sp., achieving complete disinfection after 90 min. Fe(III)-cit was found to be the best sulfite activator, while the use of real wastewater decreased the disinfection rate. The study also showed that the presence of Escherichia coli negatively influenced the Enterococcus inactivation result.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Jinli Qiu, Huifang Chan, Wenting Zheng, Yao Feng, Fuqiang Liu
Summary: The design of metal-organic framework-derived metal oxides/sulfides is an effective approach for water remediation. In this study, Fe-Ce composites with cluster-like morphology were prepared and it was found that S doping greatly improved the performance of the Fenton-like reaction. The optimized Fe-Ce-S-N catalyst exhibited superior catalytic activity and reusability.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Chemistry, Physical
Martin A. W. Schoen, Oliver Calderon, Nicholas M. Randell, Santiago Jimenez-Villegas, Katelynn M. Daly, Roman Chernikov, Simon Trudel
Summary: Amorphous nickel-iron mixed metal oxides are efficient oxygen evolution reaction catalysts that offer an economical alternative to traditional platinum- or iridium-based catalysts. The synergistic effect between Fe and Ni plays a crucial role in their superior OER performance, with potential- and rate-determining steps occurring at Ni and Fe sites, respectively. However, at higher annealing temperatures, this synergistic effect is suppressed, possibly due to phase separation into NiOx and FeOx phases.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Kento Kimura, Takuya Kurahashi, Seijiro Matsubara
Summary: A new synthetic method for the preparation of alpha-hydroxyketones by the dioxygenation of alkynes using Fe porphyrin and pinacolborane has been reported. The reaction proceeds at room temperature under air as a green oxidant, allowing for chemoselective oxidation with functional group tolerance. This method is applicable to terminal alkynes in addition to internal alkynes, affording unsymmetrical alpha-hydroxyketones that are difficult to obtain by any reported method.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Mohammad Asif, Faisal Khan, Kelly Hawboldt, Shams Anwar
Summary: This work uses density functional theory to investigate the mechanism of H2S adsorption/dissociation on the Cr-doped Fe(100) surface. It is found that H2S is weakly adsorbed on Cr-doped Fe, but the dissociated products are strongly chemisorbed. The dissociation of HS is more favorable on Fe compared to Cr-doped Fe. This study also reveals that H2S dissociation is a kinetically facile process and hydrogen diffusion follows a tortuous path. It contributes to a better understanding of sulfide corrosion mechanism and its impact, thus aiding the design of efficient corrosion prevention coatings.
Article
Chemistry, Physical
Jun Liang, Xiaoguang Duan, Xiaoyun Xu, Kexin Chen, Fei Wu, Hao Qiu, Chengshuai Liu, Shaobin Wang, Xinde Cao
Summary: This study demonstrates that pyrolytic carbon prepared under low temperature can significantly enhance the Fe3+/Fe2+ circulation in the iron/persulfate system, leading to continuous degradation of SMX. In contrast, pyrolytic carbon derived under high temperature is unable to sustain this circulation for continuous SMX degradation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Jing Ding, Wanyi Seow, Jizhong Zhou, Raymond Jianxiong Zeng, Jun Gu, Yan Zhou
Summary: This study found that Fe(II) has both enhancing and inhibiting effects on the anammox process and bacterial growth. Fe(II) at concentrations of 0.09 and 0.12 mmol/L can enhance anammox activity, while 0.75 mmol/L Fe(II) inhibits the activity with recoverable inhibition.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2021)
Article
Cell Biology
Bruce J. Shenker, Kathleen Boesze-Battaglia, Monika Damek Scuron, Lisa P. Walker, Ali Zekavat, Mensur Dlakic
CELLULAR MICROBIOLOGY
(2016)
Article
Immunology
Kathleen Boesze-Battaglia, Lisa P. Walker, Ali Zekavat, Mensur Dlakic, Monika Damek Scuron, Patrik Nygren, Bruce J. Shenker
INFECTION AND IMMUNITY
(2015)
Article
Biochemistry & Molecular Biology
Mark D. Kleven, Mensur Dlakic, C. Martin Lawrence
JOURNAL OF BIOLOGICAL CHEMISTRY
(2015)
Review
Immunology
Kathleen Boesze-Battaglia, Desiree Alexander, Mensur Dlakic, Bruce J. Shenker
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2016)
Article
Microbiology
Zackary J. Jay, Jacob P. Beam, Mensur Dlakic, Douglas B. Rusch, Mark A. Kozubal, William P. Inskeep
NATURE MICROBIOLOGY
(2018)
Article
Biochemistry & Molecular Biology
Casey Schlenker, Anupam Goel, Brian P. Tripet, Smita Menon, Taylor Willi, Mensur Dlakic, Mark J. Young, C. Martin Lawrence, Valerie Copie
Article
Cell Biology
Bruce J. Shenker, Lisa P. Walker, Ali Zekavat, Mensur Dlakic, Kathleen Boesze-Battaglia
CELLULAR MICROBIOLOGY
(2014)
Article
Biochemistry & Molecular Biology
J. C. Gress, H. M. Robertson, D. K. Weaver, M. Dlakic, K. W. Wanner
INSECT MOLECULAR BIOLOGY
(2013)
Article
Biochemistry & Molecular Biology
Mensur Dlakic, Arcady Mushegian
Article
Microbiology
Luke J. McKay, Mensur Dlakic, Matthew W. Fields, Tom O. Delmont, A. Murat Eren, Zackary J. Jay, Korinne B. Klingelsmith, Douglas B. Rusch, William P. Inskeep
NATURE MICROBIOLOGY
(2019)
Article
Biochemistry & Molecular Biology
Arcady Mushegian, Irina Sorokina, Alexey Eroshkin, Mensur Dlakic
Article
Multidisciplinary Sciences
Han Altae-Tran, Soumya Kannan, F. Esra Demircioglu, Rachel Oshiro, Suchita P. Nety, Luke J. McKay, Mensur Dlakic, William P. Inskeep, Kira S. Makarova, Rhiannon K. Macrae, Eugene Koonin, Feng Zhang
Summary: IscB and TnpB, proteins encoded in the IS200/IS605 transposons, are likely ancestors of RNA-guided endonucleases Cas9 and Cas12, respectively, using RNA for DNA cleavage. This study unveils a widespread class of transposon-encoded RNA-guided nucleases, OMEGA, with great potential for biotechnological applications.
Article
Ecology
Luke J. McKay, Olivia D. Nigro, Mensur Dlakic, Karen M. Luttrell, Douglas B. Rusch, Matthew W. Fields, William P. Inskeep
Summary: This study identified Sulfurihydrogenibium as the predominant chemoautotrophs in the sublacustrine, vapor-dominated vents of Yellowstone National Park, along with the host-virus interactions within the microbial community. The research also revealed that carbon fixation by Sulfurihydrogenibium was powered by the oxidation of reduced sulfur and H-2, and discovered uncultivated virus genomes associated with this chemoautotroph.
Article
Immunology
Monika D. Scuron, Kathleen Boesze-Battaglia, Mensur Dlakic, Bruce J. Shenker
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2016)