Evaluation Health Risks and Sorption of Hexavalent Chromium (Cr(VI) by Biochar and Iron Doped Zinc Oxide Modified Biochar (Fe-ZnO@BC) Using Trifolium: A Green Synthesis Technique
Bull Environ Contam Toxicol. 2024 Apr 2;112(4):54. doi: 10.1007/s00128-024-03880-3.ABSTRACTContamination of aquatic and terrestrial environment with hexavalent chromium Cr(VI) is one of the major hazards worldwide due its carcinogenicity, persistency and immobility. Different research techniques have been adopted for Cr(VI) remediation present in terrestrial and aquatic media, while adsorption being the most advance, low cost, environmentally friendly and common method. The present study discussed the mechanisms of Parthenium hysterophorus derived biochar, iron-doped zinc oxide nanoparticles (nFe-ZnO) and Fe-ZnO modified b...
Source: Bulletin of Environmental Contamination and Toxicology - April 2, 2024 Category: Environmental Health Authors: Shah Jehan Seema A Khattak Muhammad Waqas Sardar Khan Liaqat Ali Source Type: research
Evaluation Health Risks and Sorption of Hexavalent Chromium (Cr(VI) by Biochar and Iron Doped Zinc Oxide Modified Biochar (Fe-ZnO@BC) Using Trifolium: A Green Synthesis Technique
Bull Environ Contam Toxicol. 2024 Apr 2;112(4):54. doi: 10.1007/s00128-024-03880-3.ABSTRACTContamination of aquatic and terrestrial environment with hexavalent chromium Cr(VI) is one of the major hazards worldwide due its carcinogenicity, persistency and immobility. Different research techniques have been adopted for Cr(VI) remediation present in terrestrial and aquatic media, while adsorption being the most advance, low cost, environmentally friendly and common method. The present study discussed the mechanisms of Parthenium hysterophorus derived biochar, iron-doped zinc oxide nanoparticles (nFe-ZnO) and Fe-ZnO modified b...
Source: Bulletin of Environmental Contamination and Toxicology - April 2, 2024 Category: Environmental Health Authors: Shah Jehan Seema A Khattak Muhammad Waqas Sardar Khan Liaqat Ali Source Type: research
Evaluation Health Risks and Sorption of Hexavalent Chromium (Cr(VI) by Biochar and Iron Doped Zinc Oxide Modified Biochar (Fe-ZnO@BC) Using Trifolium: A Green Synthesis Technique
Bull Environ Contam Toxicol. 2024 Apr 2;112(4):54. doi: 10.1007/s00128-024-03880-3.ABSTRACTContamination of aquatic and terrestrial environment with hexavalent chromium Cr(VI) is one of the major hazards worldwide due its carcinogenicity, persistency and immobility. Different research techniques have been adopted for Cr(VI) remediation present in terrestrial and aquatic media, while adsorption being the most advance, low cost, environmentally friendly and common method. The present study discussed the mechanisms of Parthenium hysterophorus derived biochar, iron-doped zinc oxide nanoparticles (nFe-ZnO) and Fe-ZnO modified b...
Source: Bulletin of Environmental Contamination and Toxicology - April 2, 2024 Category: Environmental Health Authors: Shah Jehan Seema A Khattak Muhammad Waqas Sardar Khan Liaqat Ali Source Type: research
Removal of chromium(III) from contaminated waters using cobalt ferrite: how safe is remediated water to aquatic wildlife?
In this study, colloidal cobalt ferrite (CoFe2O4) particles were investigated as magnetic sorbents for chromium-aqueous chemical species. The oxidative stress responses of Mytilus galloprovincialis mussels exposed to 200 μg/L of Cr, resembling remediated water, were evaluated. More than 95% of Cr was removed from contaminated solutions by CoFe2O4 aqueous suspensions at pH 6 and pH 10. The kinetics of sorption experiments were examined using pseudo-1st order, pseudo-2nd order and Elovich models to evaluate which mathematical model has a better adjustment to the experimental data. The present study revealed that the levels ...
Source: Environmental Science and Pollution Research International - April 1, 2024 Category: Environmental Health Authors: Joana C Almeida Celso E D Cardoso Daniela S Tavares Tito Trindade Carlos Vale Rosa Freitas Eduarda Pereira Source Type: research
Integration of adsorption, reduction, and filtration in PANI/PVDF nanofiber composite membrane for removal of Cr(VI)
Environ Sci Pollut Res Int. 2024 Apr 1. doi: 10.1007/s11356-024-33098-z. Online ahead of print.ABSTRACTHere, polyaniline/polyvinylidene fluoride (PANI/PVDF) nanofiber composite membrane was fabricated using electrostatic spinning technology to remove hexavalent chromium Cr(VI). The employment of PANI not only extremely enhanced the hydrophilic property of the nanofiber membrane, but also facilitated the transfer of Cr2O72- from water to the membrane. The PANI/PVDF membrane had an extremely excellent performance in getting rid of Cr(VI) and a quite large flux (250 L/m2 h). The maximum adsorption quantity of the membrane cou...
Source: Environmental Science and Pollution Research International - April 1, 2024 Category: Environmental Health Authors: Hongyu Liu Wei Ye Huan Zhang Huicai Wang Junfu Wei Source Type: research
Integration of adsorption, reduction, and filtration in PANI/PVDF nanofiber composite membrane for removal of Cr(VI)
Environ Sci Pollut Res Int. 2024 Apr 1. doi: 10.1007/s11356-024-33098-z. Online ahead of print.ABSTRACTHere, polyaniline/polyvinylidene fluoride (PANI/PVDF) nanofiber composite membrane was fabricated using electrostatic spinning technology to remove hexavalent chromium Cr(VI). The employment of PANI not only extremely enhanced the hydrophilic property of the nanofiber membrane, but also facilitated the transfer of Cr2O72- from water to the membrane. The PANI/PVDF membrane had an extremely excellent performance in getting rid of Cr(VI) and a quite large flux (250 L/m2 h). The maximum adsorption quantity of the membrane cou...
Source: Environmental Science and Pollution Research International - April 1, 2024 Category: Environmental Health Authors: Hongyu Liu Wei Ye Huan Zhang Huicai Wang Junfu Wei Source Type: research
Microbial innovations in chromium remediation: mechanistic insights and diverse applications
AbstractThe ubiquity of hexavalent chromium (Cr(VI)) from industrial activities poses a critical environmental threat due to its persistence, toxicity and mutagenic potential. Traditional physico-chemical methods for its removal often entail significant environmental drawbacks. Recent advancements in remediation strategies have emphasized nano and bioremediation techniques as promising avenues for cost-effective and efficient Cr(VI) mitigation. Bioremediation harnesses the capabilities of biological agents like microorganisms, and algae to mitigate heavy metal contamination, while nano-remediation employs nanoparticles for...
Source: World Journal of Microbiology and Biotechnology - March 30, 2024 Category: Microbiology Source Type: research
Concentration of trace elements in blood of Polish patients with prostate cancer
Environ Toxicol Pharmacol. 2024 Mar 27:104425. doi: 10.1016/j.etap.2024.104425. Online ahead of print.ABSTRACTThe goal of the study was to analyse the concentrations of chemical elements (Fe, Ni, As, Cd, Pb, Hg, Cr, Zn) which are important for the determination of environmental toxins (e.g. resulting from smoking, exposure to harmful agents at work) in Polish patients with prostate cancer. The study covered 66 patients with diagnosed prostate cancer and 64 healthy volunteers over 50 years old. The analysis of the concentrations of selected chemical elements in whole blood was performed using inductively coupled plasma mass...
Source: Cancer Control - March 29, 2024 Category: Cancer & Oncology Authors: Joanna Maria Drozdz-Afelt Beata Koim-Puchowska Piotr Kaminski Source Type: research
The Syntheses of Chromium Aluminum Carbide (Cr < sub > 2 < /sub > AlC) MAX Phase and Cr < sub > 2 < /sub > CTx MXene and Investigation of Their Antimicrobial Properties
Appl Biochem Biotechnol. 2024 Mar 28. doi: 10.1007/s12010-024-04910-w. Online ahead of print.ABSTRACTChromium aluminum carbide (Cr2AlC) MAX phase and Cr2CTx (MXene-Cr) were synthesized by the pressureless sintering method and hydrothermal method, respectively. In addition to this, the free radical scavenging activities (FRSA) of MAX-Cr phase and MXene-Cr compounds were tested and compared with ascorbic acid and trolox as standard compounds. The obtained FRSA results of MAX-Cr phase and MXene-Cr were 42.82 and 59.64%, respectively, at 100 mg/L concentration. MXene-Cr showed a 66.90% inhibitory effect on α-amylase at 200 mg...
Source: Applied Biochemistry and Biotechnology - March 28, 2024 Category: Biochemistry Authors: Gul Kaya Eda Ondul Koc Sadin Özdemir M Serkan Yal çın Kasim Ocakoglu Nadir Dizge Source Type: research
Are Metal Ion Levels Elevated After Dual Mobility Acetabular Systems: Minimum Five-Year Analyses
CONCLUSION: The findings reveal that over a minimum of five years (average = six years; span, five to 10 years), cobalt and chromium concentrations in patients' systems remained within normal limits and were clinically insignificant, irrespective of the follow-up duration, head material, or implant specifications. This underscores the efficacy of dual mobility systems in ensuring minimal metal ion presence.PMID:38547433 (Source: Surgical Technology International)
Source: Surgical Technology International - March 28, 2024 Category: Surgery Authors: Daniel Hameed Jeremy Dubin Zhongming Chen Nipun Sodhi Michael A Mont Steven F Harwin Source Type: research
What is the Long-term Wear of a 5-Mrad Highly Crosslinked Polyethylene Liner? A 14-year RSA Study
CONCLUSION: The proximal, 2D, and 3D wear of a highly crosslinked polyethylene liner produced using 5-Mrad radiation remains low in the longer-term. With the small numbers available in a long-term RSA study such as this, we confirmed that the wear rate did not decrease at longer-term follow-up, unlike previous RSA studies of more highly irradiated highly crosslinked polyethylene liners. Nevertheless, the wear rate remains very low and below the threshold typically associated with the development of osteolysis (0.1 mm/year of wear). This should provide assurance to orthopaedic surgeons monitoring patients with this 5-Mrad i...
Source: Clinical Orthopaedics and Related Research - March 28, 2024 Category: Orthopaedics Authors: Stuart A Callary Deepti K Sharma Taisha M D'Apollonio Owain Critchley Graham Mercer Christopher Wilson David G Campbell Source Type: research
The Syntheses of Chromium Aluminum Carbide (Cr < sub > 2 < /sub > AlC) MAX Phase and Cr < sub > 2 < /sub > CTx MXene and Investigation of Their Antimicrobial Properties
Appl Biochem Biotechnol. 2024 Mar 28. doi: 10.1007/s12010-024-04910-w. Online ahead of print.ABSTRACTChromium aluminum carbide (Cr2AlC) MAX phase and Cr2CTx (MXene-Cr) were synthesized by the pressureless sintering method and hydrothermal method, respectively. In addition to this, the free radical scavenging activities (FRSA) of MAX-Cr phase and MXene-Cr compounds were tested and compared with ascorbic acid and trolox as standard compounds. The obtained FRSA results of MAX-Cr phase and MXene-Cr were 42.82 and 59.64%, respectively, at 100 mg/L concentration. MXene-Cr showed a 66.90% inhibitory effect on α-amylase at 200 mg...
Source: Applied Biochemistry and Biotechnology - March 28, 2024 Category: Biochemistry Authors: Gul Kaya Eda Ondul Koc Sadin Özdemir M Serkan Yal çın Kasim Ocakoglu Nadir Dizge Source Type: research
Are Metal Ion Levels Elevated After Dual Mobility Acetabular Systems: Minimum Five-Year Analyses
CONCLUSION: The findings reveal that over a minimum of five years (average = six years; span, five to 10 years), cobalt and chromium concentrations in patients' systems remained within normal limits and were clinically insignificant, irrespective of the follow-up duration, head material, or implant specifications. This underscores the efficacy of dual mobility systems in ensuring minimal metal ion presence.PMID:38547433 (Source: Surgical Technology International)
Source: Surgical Technology International - March 28, 2024 Category: Surgery Authors: Daniel Hameed Jeremy Dubin Zhongming Chen Nipun Sodhi Michael A Mont Steven F Harwin Source Type: research
What is the Long-term Wear of a 5-Mrad Highly Crosslinked Polyethylene Liner? A 14-year RSA Study
CONCLUSION: The proximal, 2D, and 3D wear of a highly crosslinked polyethylene liner produced using 5-Mrad radiation remains low in the longer-term. With the small numbers available in a long-term RSA study such as this, we confirmed that the wear rate did not decrease at longer-term follow-up, unlike previous RSA studies of more highly irradiated highly crosslinked polyethylene liners. Nevertheless, the wear rate remains very low and below the threshold typically associated with the development of osteolysis (0.1 mm/year of wear). This should provide assurance to orthopaedic surgeons monitoring patients with this 5-Mrad i...
Source: Clinical Orthopaedics and Related Research - March 28, 2024 Category: Orthopaedics Authors: Stuart A Callary Deepti K Sharma Taisha M D'Apollonio Owain Critchley Graham Mercer Christopher Wilson David G Campbell Source Type: research
The Syntheses of Chromium Aluminum Carbide (Cr < sub > 2 < /sub > AlC) MAX Phase and Cr < sub > 2 < /sub > CTx MXene and Investigation of Their Antimicrobial Properties
Appl Biochem Biotechnol. 2024 Mar 28. doi: 10.1007/s12010-024-04910-w. Online ahead of print.ABSTRACTChromium aluminum carbide (Cr2AlC) MAX phase and Cr2CTx (MXene-Cr) were synthesized by the pressureless sintering method and hydrothermal method, respectively. In addition to this, the free radical scavenging activities (FRSA) of MAX-Cr phase and MXene-Cr compounds were tested and compared with ascorbic acid and trolox as standard compounds. The obtained FRSA results of MAX-Cr phase and MXene-Cr were 42.82 and 59.64%, respectively, at 100 mg/L concentration. MXene-Cr showed a 66.90% inhibitory effect on α-amylase at 200 mg...
Source: Applied Biochemistry and Biotechnology - March 28, 2024 Category: Biochemistry Authors: Gul Kaya Eda Ondul Koc Sadin Özdemir M Serkan Yal çın Kasim Ocakoglu Nadir Dizge Source Type: research
