Effects of Streptomyces sp. HU2014 inoculation on wheat growth and rhizosphere microbial diversity under hexavalent chromium stress
Ecotoxicol Environ Saf. 2024 Apr 15;276:116313. doi: 10.1016/j.ecoenv.2024.116313. Online ahead of print.ABSTRACTWheat (Triticum aestivum L.) is a major foodstuff for over 40% of the world's population. However, hexavalent chromium [Cr(VI)] in contaminated soil significantly affects wheat production and its ecological environment. Streptomyces sp. HU2014 was first used to investigate the effects of Cr (VI) stress on wheat growth. We analyzed the Cr(VI) concentration, physicochemical properties of wheat and soil, total Cr content, and microbial community structures during their interactions. HU2014 reduced the toxicity of C...
Source: Ecotoxicology and Environmental Safety - April 16, 2024 Category: Environmental Health Authors: Hongxia Zhu Linfeng Hu Yunlong Wang Peipei Mei Feng Zhou Tetiana Rozhkova Chengwei Li Source Type: research
Cr-catalyzed borylation of C(aryl) –F bonds using terpyridine ligand
Chem. Commun., 2024, Accepted Manuscript DOI: 10.1039/D4CC01330A, Communication Senlin Liu, Zheng Luo, Shuaiyong Zhao, Meiming Luo, Xiaoming Zeng The defluoroborylation of fluoroarenes by chromium-catalyzed cleavage of unactivated C –F bonds is described. The reaction uses HBpin as the boron source, low-cost and commercially available chromium salt as the precatalyst,... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - April 16, 2024 Category: Chemistry Authors: Senlin Liu Source Type: research
Probabilistic risk assessment of residential exposure to electric arc furnace steel slag using Bayesian model of relative bioavailability and PBPK modeling of manganese
AbstractElectric arc furnace (EAF) slag is a coproduct of steel production used primarily for construction purposes. Some applications of EAF slag result in residential exposures by incidental ingestion and inhalation of airborne dust. To evaluate potential health risks, an EAF slag characterization program was conducted to measure concentrations of metals and leaching potential (including oral bioaccessibility) in 38 EAF slag samples. Arsenic, hexavalent chromium, iron, vanadium, and manganese (Mn) were identified as constituents of interest (COIs). Using a probabilistic risk assessment (PRA) approach, estimated distribut...
Source: Risk Analysis - April 16, 2024 Category: International Medicine & Public Health Authors: Liz Mittal,
Camarie S. Perry,
Alexander D. Blanchette,
Deborah M. Proctor Tags: ORIGINAL ARTICLE Source Type: research
Chromium tetraphosphide (CrP4) as a high-performance anode for Li ion and Na ion batteries
J. Mater. Chem. A, 2024, Advance Article DOI: 10.1039/D4TA00854E, PaperJongwon Lee, Doyeon Lee, Kyeong-Ho Kim, Seong-Hyeon Hong The CrP4 nanoparticles and CrP4/C nanocomposite were synthesizedvia high-energy mechanical milling and applied as anodes for LIBs and SIBs. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - April 15, 2024 Category: Chemistry Authors: Jongwon Lee Source Type: research
New Pyridine Dicarbene Ligands with Ring Expanded NHCs and their Nickel and Chromium Complexes
Chem Asian J. 2024 Apr 15:e202400169. doi: 10.1002/asia.202400169. Online ahead of print.ABSTRACTThe pincer complexes [NiIIBr(CNC)]Br (4), [CrIIIBr3(CNC)] (5a) and [CrIIIBr2.3Cl0.7(CNC)] (5b), where CNC = 3,3'-(pyridine-2,6-diyl)bis(1-mesityl-3,4,5,6-tetrahydropyrimidin-2-ylidene), were obtained from the novel ligand CNC, generated in situ from the precursor (CHNCH)Br2 and [NiIIBr2(PPh3)2] or from [CrII{N(SiMe3)2}2(THF)2] and (CHNCH)Br2 by aminolysis, respectively. The tetrahedrally distorted square planar (τ4 ≅ 0.30) geometry and the singlet ground state of Ni in 4 were attributed to steric constraints of the CNC backb...
Source: Chemistry, an Asian Journal - April 15, 2024 Category: Chemistry Authors: Evangelos Papangelis Katrin Pelzer Christophe Gourlaouen Dominique Armspach Pierre Braunstein Andreas A Danopoulos Corinne Bailly Nikolaos Tsoureas Dimitrios Triantafyllos Gerokonstantis Source Type: research
Heavy metal sequestration from wastewater by metal-organic frameworks: a state-of-the-art review of recent progress
Environ Sci Pollut Res Int. 2024 Apr 16. doi: 10.1007/s11356-024-33317-7. Online ahead of print.ABSTRACTMetal-organic frameworks (MOFs) have emerged as highly promising adsorbents for removing heavy metals from wastewater due to their tunable structures, high surface areas, and exceptional adsorption capacities. This review meticulously examines and summarizes recent advancements in producing and utilizing MOF-based adsorbents for sequestering heavy metal ions from water. It begins by outlining and contrasting commonly employed methods for synthesizing MOFs, such as solvothermal, microwave, electrochemical, ultrasonic, and...
Source: Environmental Science and Pollution Research International - April 15, 2024 Category: Environmental Health Authors: Ali Shaan Manzoor Ghumman Rashid Shamsuddin Lailatul Qomariyah Jun Wei Lim Abdul Sami Muhammad Ayoub Source Type: research
Sorption capacity of Eichhornia crassipes (Mart.) Solms for zinc removal from electroplating industry wastewater
This study used Eichhornia crassipes (Mart.) Solms to remove zinc from wastewater from the electroplating industry in a constructed wetland. Experimental investigations were conducted for removing zinc ions from electroplating industry wastewater using various process parameters such as nutrient dosages, dilution ratios, potential of hydrogen ions, biomasses, and contact times. The outcome of this study revealed that the maximum zinc removal percentage in electroplating industrial wastewater was found for the optimum nutrient dosages of 60 g, dilution ratios of 10, potential hydrogen ion levels of 8, and biomass amounts of...
Source: Environmental Science and Pollution Research International - April 15, 2024 Category: Environmental Health Authors: Sivakumar Durairaj Source Type: research
New Pyridine Dicarbene Ligands with Ring Expanded NHCs and their Nickel and Chromium Complexes
Chem Asian J. 2024 Apr 15:e202400169. doi: 10.1002/asia.202400169. Online ahead of print.ABSTRACTThe pincer complexes [NiIIBr(CNC)]Br (4), [CrIIIBr3(CNC)] (5a) and [CrIIIBr2.3Cl0.7(CNC)] (5b), where CNC = 3,3'-(pyridine-2,6-diyl)bis(1-mesityl-3,4,5,6-tetrahydropyrimidin-2-ylidene), were obtained from the novel ligand CNC, generated in situ from the precursor (CHNCH)Br2 and [NiIIBr2(PPh3)2] or from [CrII{N(SiMe3)2}2(THF)2] and (CHNCH)Br2 by aminolysis, respectively. The tetrahedrally distorted square planar (τ4 ≅ 0.30) geometry and the singlet ground state of Ni in 4 were attributed to steric constraints of the CNC backb...
Source: Chemistry, an Asian Journal - April 15, 2024 Category: Chemistry Authors: Evangelos Papangelis Katrin Pelzer Christophe Gourlaouen Dominique Armspach Pierre Braunstein Andreas A Danopoulos Corinne Bailly Nikolaos Tsoureas Dimitrios Triantafyllos Gerokonstantis Source Type: research
Sorption capacity of Eichhornia crassipes (Mart.) Solms for zinc removal from electroplating industry wastewater
This study used Eichhornia crassipes (Mart.) Solms to remove zinc from wastewater from the electroplating industry in a constructed wetland. Experimental investigations were conducted for removing zinc ions from electroplating industry wastewater using various process parameters such as nutrient dosages, dilution ratios, potential of hydrogen ions, biomasses, and contact times. The outcome of this study revealed that the maximum zinc removal percentage in electroplating industrial wastewater was found for the optimum nutrient dosages of 60 g, dilution ratios of 10, potential hydrogen ion levels of 8, and biomass amounts of...
Source: Environmental Science and Pollution Research International - April 15, 2024 Category: Environmental Health Authors: Sivakumar Durairaj Source Type: research
Heavy metal sequestration from wastewater by metal-organic frameworks: a state-of-the-art review of recent progress
Environ Sci Pollut Res Int. 2024 Apr 16. doi: 10.1007/s11356-024-33317-7. Online ahead of print.ABSTRACTMetal-organic frameworks (MOFs) have emerged as highly promising adsorbents for removing heavy metals from wastewater due to their tunable structures, high surface areas, and exceptional adsorption capacities. This review meticulously examines and summarizes recent advancements in producing and utilizing MOF-based adsorbents for sequestering heavy metal ions from water. It begins by outlining and contrasting commonly employed methods for synthesizing MOFs, such as solvothermal, microwave, electrochemical, ultrasonic, and...
Source: Environmental Science and Pollution Research International - April 15, 2024 Category: Environmental Health Authors: Ali Shaan Manzoor Ghumman Rashid Shamsuddin Lailatul Qomariyah Jun Wei Lim Abdul Sami Muhammad Ayoub Source Type: research
Adaptation of cobalt chromium frameworks fabricated by conventional versus selective laser melting techniques: An in vitro and clinical assessment
Three-dimensional (3D) printing of cobalt chromium (Co-Cr) removable partial dentures (RPDs)by selective laser melting (SLM) has been claimed to be less challenging than by conventional casting and provides significant improvements. However, the adaptation and fit of the SLM framework and the optimum build orientation are still unclear. (Source: Journal of Prosthetic Dentistry)
Source: Journal of Prosthetic Dentistry - April 15, 2024 Category: Dentistry Authors: Safa Salim Elhadery, Mohammed Nasser Alhajj, Norsiah Yunus, Norliza Ibrahim, Zubaidah Zanul Abidin, Siti Fauzza Ahmad, Nosizana Mohd Salleh Tags: Clinical research Source Type: research
Enhancement of bio-promoters on hexavalent chromium inhibited sulfur-driven denitrification: repairing damage, accelerating electron transfer, and reshaping microbial collaboration
This study proposed an effective bio-promoter (mediator-promoter composed of L-cysteine, biotin, cytokinin, and anthraquinone-2,6-disulfonate) to recover Cr(VI) inhibited sulfur-driven denitrification, which effectively reduced the recovery time of NO3--N reduction (18-21 cycles) and NO2--N reduction (27-42 cycles) compared with self-recovery. The mediator-promoter repaired microbial damage by promoting intracellular chromium efflux. Moreover, the mediator-promoter reduced the accumulated reactive oxygen species by stimulating the secretion of antioxidant enzymes, reaching equilibrium in the oxidative-antioxidant system. T...
Source: Bioresource Technology - April 14, 2024 Category: Biotechnology Authors: Qian Wang Chenggong Zhang Jinxin Song Bibek Bamanu Yingxin Zhao Source Type: research
Machine Learning-Assisted Chromium Speciation Using a Single-Well Ratiometric Fluorescent Nanoprobe
This study introduces a single-well fluorometric sensor that utilizes orange emissive thioglycolic acid stabilized CdTe quantum dots (TGA-QDs) and blue emissive carbon dots (CDs) to detect and differentiate between various chromium species, such as Cr (III) and Cr (VI) (i.e., CrO42- and Cr2O72-). The variations of fluorescence spectra of the proposed probe upon chromium species addition were analyzed using machine learning techniques such as linear discriminant analysis and partial least squares regression as a classification and multivariate calibration technique, respectively. Linear discriminant analysis (LDA) demonstra...
Source: Chemosphere - April 13, 2024 Category: Chemistry Authors: Razieh Motamedi Khozani Samira Abbasi-Moayed Mohammad Reza Hormozi-Nezhad Source Type: research
Metal organic framework anchored onto biowaste mediated carbon material (rGO) for remediation of Chromium (VI) by the photocatalytic process
In this study, a hybrid amino functionalized MOF@rGO nanocatalyst was produced by utilization of a biowaste mediated carbon material (reduced graphene oxide; rGO) and its surface was modified by in situ synthesis of a nanocrystalline, mixed ligand octahedral MOF containing iron metal and NH2 functional groups and the prepared composite was investigated for Cr (VI) removal. The photocatalytic degradation of Cr(VI) in aqueous solutions was carried out under UV irradiation. Using a batch mode system, the effect of numerous control variables was examined, and the process design and optimization were carried out by response sur...
Source: Chemosphere - April 13, 2024 Category: Chemistry Authors: S Sathish K Satish Kumar Siddharth U D Prabu M Karthikeyan Venkatesan D Supriya S Andal P Omirserik Baigenzhenov Aravind Kumar J Source Type: research
Metal organic framework anchored onto biowaste mediated carbon material (rGO) for remediation of Chromium (VI) by the photocatalytic process
In this study, a hybrid amino functionalized MOF@rGO nanocatalyst was produced by utilization of a biowaste mediated carbon material (reduced graphene oxide; rGO) and its surface was modified by in situ synthesis of a nanocrystalline, mixed ligand octahedral MOF containing iron metal and NH2 functional groups and the prepared composite was investigated for Cr (VI) removal. The photocatalytic degradation of Cr(VI) in aqueous solutions was carried out under UV irradiation. Using a batch mode system, the effect of numerous control variables was examined, and the process design and optimization were carried out by response sur...
Source: Chemosphere - April 13, 2024 Category: Chemistry Authors: S Sathish K Satish Kumar Siddharth U D Prabu M Karthikeyan Venkatesan D Supriya S Andal P Omirserik Baigenzhenov Aravind Kumar J Source Type: research
