Biodiesel production from the Scenedesmus sp. and utilization of pigment from de-oiled biomass as sensitizer in the dye-sensitized solar cell (DSSC) for performance enhancement
This study proposes two DSSC test models, i.e., PVDF (Polyvinylidene fluoride) - bound cell and cell without any PVDF binder. For the PVDF-coated DSSC, the average energy conversion efficiency reached about 14.3%, the open circuit voltage was 0.55 V, and the short circuit current was 144.5 mA. The unbound cells showed a reduction in efficiency, voltage, and current, and notably efficiency of 10.44% on day 1 was decreased to 3.32%, and the open circuit voltage and short circuit current of 0.38V and 144mA were decreased to 0.24V and 130 mA after 10 days, under 40 mW/cm2 input power. The PVDF-coated solar cell has maintained ...
Source: Environmental Research - March 22, 2024 Category: Environmental Health Authors: Narasimman Kalaiselvan Mysoon M Al-Ansari Thangavel Mathimani Source Type: research
Ion-selective response of visible light photoswitchable indole-hemithioindigo: toward chemical sensing of fluoride and hydroxide
Chem Commun (Camb). 2024 Mar 22. doi: 10.1039/d4cc00780h. Online ahead of print.ABSTRACTThe chemical sensing of hydrophilic anions such as F- and OH- is of significant importance but also presents considerable challenges. Herein, the thermal E to Z isomerization of a visible-light-responsive photoswitch (HTI-In) is utilized to address this challenge for the first time. The isomerization of HTI-In is dependent on the concentration of F- and OH-, and exhibits excellent selectivity toward F- and OH- over other common anions and cations. Unlike irreversible chemodosimeters and other conventional fluorescent probes, the photody...
Source: Chemical Communications - March 22, 2024 Category: Chemistry Authors: Weian Zhang Yi Lu Yu Cheng Yifu Wang Zeying Wu Jingying Zhai Xiaojiang Xie Source Type: research
Biodiesel production from the Scenedesmus sp. and utilization of pigment from de-oiled biomass as sensitizer in the dye-sensitized solar cell (DSSC) for performance enhancement
This study proposes two DSSC test models, i.e., PVDF (Polyvinylidene fluoride) - bound cell and cell without any PVDF binder. For the PVDF-coated DSSC, the average energy conversion efficiency reached about 14.3%, the open circuit voltage was 0.55 V, and the short circuit current was 144.5 mA. The unbound cells showed a reduction in efficiency, voltage, and current, and notably efficiency of 10.44% on day 1 was decreased to 3.32%, and the open circuit voltage and short circuit current of 0.38V and 144mA were decreased to 0.24V and 130 mA after 10 days, under 40 mW/cm2 input power. The PVDF-coated solar cell has maintained ...
Source: Cell Research - March 22, 2024 Category: Cytology Authors: Narasimman Kalaiselvan Mysoon M Al-Ansari Thangavel Mathimani Source Type: research
Ion-selective response of visible light photoswitchable indole-hemithioindigo: toward chemical sensing of fluoride and hydroxide
Chem Commun (Camb). 2024 Mar 22. doi: 10.1039/d4cc00780h. Online ahead of print.ABSTRACTThe chemical sensing of hydrophilic anions such as F- and OH- is of significant importance but also presents considerable challenges. Herein, the thermal E to Z isomerization of a visible-light-responsive photoswitch (HTI-In) is utilized to address this challenge for the first time. The isomerization of HTI-In is dependent on the concentration of F- and OH-, and exhibits excellent selectivity toward F- and OH- over other common anions and cations. Unlike irreversible chemodosimeters and other conventional fluorescent probes, the photody...
Source: Chemical Communications - March 22, 2024 Category: Chemistry Authors: Weian Zhang Yi Lu Yu Cheng Yifu Wang Zeying Wu Jingying Zhai Xiaojiang Xie Source Type: research
Molecules, Vol. 29, Pages 1434: Tetramethylpyrazine Antagonizes the Subchronic Cadmium Exposure-Induced Oxidative Damage in Mouse Livers via the Nrf2/HO-1 Pathway
In conclusion, TMP could inhibit oxidative stress and attenuate Cd group-induced liver injuries by activating the Nrf2 pathway. (Source: Molecules)
Source: Molecules - March 22, 2024 Category: Chemistry Authors: Xue Hu Siqi Zhao Ziming Guo Yiling Zhu Shuai Zhang Danqin Li Gang Shu Tags: Article Source Type: research
The association between Dental Fluorosis and COL1A2 gene polymorphism among a Tunisian Population
This study aimed to investigate the associati... (Source: BMC Oral Health)
Source: BMC Oral Health - March 22, 2024 Category: Dentistry Authors: Rim Kallala, Afef Slimani, Yosra Gassara, Behaeddin Garrach, Sawssen Chouchen, Hajer Foddha, Asma Rouis and Aberraouf kenani Tags: Research Source Type: research
Selective fluoride sensing by a novel series of lanthanide-based one-dimensional coordination polymers through intramolecular proton transfer
This article is licensed under aCreative Commons Attribution 3.0 Unported Licence.Arun Kumar Bar, Vaibhav Singh, Lakshmi Thachanadan Suresh, Jean-Pascal Sutter A novel series of one-dimensional coordination polymers (CPs) is achieved via a facile one-pot synthetic strategy employing the nitrate salts of trivalent lanthanides, a pentadentate chelating ligand, and triphenylphosphine oxide... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - March 21, 2024 Category: Chemistry Authors: Arun Kumar Bar Source Type: research
Infrared Laser Stark Spectroscopy of Methyl Fluoride in 4He Nanodroplets
The objective of performing Stark spectroscopy was to see if there is any evidence for a rotational linewidth dependence on the external field strength, due to a reduced difference in between methyl fluorides rotational energy gap and the roton-gap of superfluid helium. We did not find any evidence for such an effect, which we largely attribute to the rotational energy gap not increasing significantly enough by the external field. We point to another molecule (formaldehyde) whose energy levels are predicted to show a more promising response to application of an external field.PMID:38511250 | DOI:10.1002/cphc.202400224 (Source: Chemphyschem)
Source: Chemphyschem - March 21, 2024 Category: Chemistry Authors: Paul Raston Gary E Douberly Source Type: research
Recovery of aluminum oxide and iron oxide from aluminum electrolysis iron-rich cover material and preparation of aluminum fluoride
Environ Sci Pollut Res Int. 2024 Mar 21. doi: 10.1007/s11356-024-32877-y. Online ahead of print.ABSTRACTIn aluminum electrolysis, the iron-rich cover material is formed on the cover material and the steel rod connecting the carbon anode. Due to the high iron content in the iron-rich cover material, it differs from traditional cover material and thus requires harmless recycling and treatment. A process was proposed and used in this study to recovery F, Al, and Fe elements from the iron-rich cover material. This process involved aluminum sulfate solution leaching for fluorine recovery and alkali-acid synergistic leaching for...
Source: Environmental Science and Pollution Research International - March 21, 2024 Category: Environmental Health Authors: Jinghao Lan Hengwei Yan Zhanwei Liu Wenhui Ma Source Type: research
Infrared Laser Stark Spectroscopy of Methyl Fluoride in 4He Nanodroplets
The objective of performing Stark spectroscopy was to see if there is any evidence for a rotational linewidth dependence on the external field strength, due to a reduced difference in between methyl fluorides rotational energy gap and the roton-gap of superfluid helium. We did not find any evidence for such an effect, which we largely attribute to the rotational energy gap not increasing significantly enough by the external field. We point to another molecule (formaldehyde) whose energy levels are predicted to show a more promising response to application of an external field.PMID:38511250 | DOI:10.1002/cphc.202400224 (Source: Chemphyschem)
Source: Chemphyschem - March 21, 2024 Category: Chemistry Authors: Paul Raston Gary E Douberly Source Type: research
Aortic Disease Activity in Patients With Endoleak After Endovascular Aneurysm Repair
Aortic aneurysm disease activity can be assessed using sodium [18F] fluoride positron emission tomography and increased aortic sodium [18F] fluoride uptake is associated with a higher rate of abdominal aortic aneurysm expansion and adverse clinical events. We aimed to establish whether increased aortic disease activity is associated with patients who developed an endoleak after endovascular aneurysm repair (EVAR). (Source: Journal of Vascular Surgery)
Source: Journal of Vascular Surgery - March 20, 2024 Category: Surgery Authors: Samuel Debono, Jennifer Nash, Alexander J. Fletcher, Maaz B.J. Syed, Edwin J.R. van Beek, Michelle C. Williams, Andrew L. Tambyraja, Marc R. Dweck, Rachael O. Forsythe, David E. Newby Source Type: research
Industrial fluoride emissions and their spatial characteristics in the Nansi Lake Basin, Eastern China
In this study, both bottom-up and top-down approaches were used to estimate the fluoride emissions in the Nansi Lake Basin. Global and local spatial autocorrelation were adopted to reveal the spatial agglomeration effects. The fluoride emissions calculated by the bottom-up approach were larger than those calculated by the top-down method. The highest fluoride input mainly occurred in Zoucheng and Mudan. The highest fluoride emissions mainly occurred in Zoucheng and Rencheng using the bottom-up approach. The highest fluoride emissions mainly occurred in Zoucheng and Yanzhou using the top-down approach. Mining and washing of...
Source: Environmental Science and Pollution Research International - March 20, 2024 Category: Environmental Health Authors: Dandan Liu Xueying Li Yue Zhang Lu Bai Huijian Shi Qi Qiao Tianran Li Wen Xu Xiaoyun Zhou Hejing Wang Source Type: research
Molecules, Vol. 29, Pages 1361: Polyanion Condensation in Inorganic and Hybrid Fluoridometallates (IV) of Octahedrally Coordinated Ti, Zr, Hf, V, Cr, W, Mn, Ge, Sn, and Pb
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In fluorides, the M4+ cations of M = Ti, V, Cr, Mn, Ge, Sn, and Pb favour the octahedral coordination of six F ligands. Some examples of M4+ with larger cations (M = Zr, Hf, W) in octahedral coordination are also known. If not enough F ligands are available to have isolated MIVF6 octahedra, they must share their F ligands. The crystal structures of such fluoride metalates (IV) show the variety of possible structural motifs of the zero-dimensional oligomeric anions [M2F11]3− (M = Ti, Cr), [M3F15]3− (M = Zr, Hf), [M3F16]4− (M = Ge), [M4F18]2− (M = Ti, W), [M4F19]3...
Source: Molecules - March 19, 2024 Category: Chemistry Authors: Zoran Mazej Tags: Review Source Type: research
IJERPH, Vol. 21, Pages 362: Association between the Composition of Drinking Water and Cognitive Function in the Elderly: A Systematic Review
Kim
The prevalence of dementia increases with nearly 10 million new cases each year, with Alzheimer’s disease contributing to 60–70% of cases. Environmental factors such as drinking water have been evaluated to determine if a relationship exists between trace elements in drinking water and the risk of developing cognitive disorders in the elderly. The purpose of the current systematic review was to evaluate an association between the composition of drinking water and cognitive function in the elderly. In accordance with the Preferred Reporting Items for Systematic Review and Meta-Analyses gu...
Source: International Journal of Environmental Research and Public Health - March 19, 2024 Category: Environmental Health Authors: Annie Wasick Yeonsoo Kim Tags: Review Source Type: research
Fluoride intake via watermelon consumption and risk assessment
. (Source: Toxin Reviews)
Source: Toxin Reviews - March 19, 2024 Category: Toxicology Authors: Mahbubeh TangestaniSina DobaradaranDelaram AbediFatemeh JavanfekrAzam MohammadiGabriel E. De-La-TorreReza SaeediJ örg Spitza Department of Environmental Health Engineering, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Source Type: research
