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https://www.readbyqxmd.com/read/28922486/conducting-polymer-based-materials-for-electrochemical-energy-conversion-and-storage
#1
REVIEW
Jianfeng Wang, Jinrong Wang, Zhuang Kong, Kuilin Lv, Chao Teng, Ying Zhu
To alleviate the current energy crisis and environmental pollution, sustainable and ecofriendly energy conversion and storage systems are urgently needed. Due to their high conductivity, promising catalytic activity, and excellent electrochemical properties, conducting polymers have been attracting intense attention for use in electrochemical energy conversion and storage. Here, the latest advances regarding the utilization of conducting polymers for fuel cells and supercapacitors are introduced. The strategies employed to improve the electrocatalytic and electrochemical performances of conducting-polymer-based materials are presented...
September 18, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28921374/prostate-cancer-clinical-presentation-incidence-mortality-and-survival-in-guadeloupe-over-the-period-2008-2013-from-a-population-based-cancer-registry
#2
J Deloumeaux, B Bhakkan, R Eyraud, F Braud, N Manip M'Ebobisse, P Blanchet, L Brureau
PURPOSE: The Caribbean population of Guadeloupe has one of the highest incidence rates of prostate cancer worldwide. In 2008, a population-based cancer registry was set up for the monitoring of cancer incidence in the aftermath of the environmental pollution with chlordecone, a persistent organochlorine insecticide formerly used in banana plantations. We describe the clinical presentation, incidence, mortality and survival of prostate cancer for the period 2008-2013. METHODS: The Guadeloupe cancer registry has been routinely collecting all incident cases of cancer since 2008...
September 18, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28920774/kinetics-of-diuron-under-aerobic-condition-and-residue-analysis-in-sugarcane-under-subtropical-field-conditions
#3
Shishir Tandon, Ravi Pant
Phenylureas group are persistent herbicides compared to other groups. However, their dissipation in different ecosystem should be investigated as they are major pollutant to soil and water. Dissipation kinetics of diuron at two application rates, in texturally different soils under sugarcane field conditions was investigated. Diuron was extracted from the soil with acetone and florisil SPE cleanup and extracted diuron was characterized by HPLC-UV. Diuron dissipated slowly in soils and persisted for more than 100 days...
September 18, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28920150/molecular-basis-of-cd-2-stress-response-in-candida-tropicalis
#4
Zaman Khan, Abdul Rehman, Muhammad Atif Nisar, Saima Zafar, Syed Zajif Hussain, Inga Zerr, Irshad Hussain, Muhammad Waseem, Muhammad Arif
This study examines the bioremediation potential and cadmium-induced cellular response on a molecular level in Candida tropicalis 3Aer. Spectroscopic analysis clearly illustrated the involvement of yeast cell wall components in biosorption. Cadmium bioaccumulation was confirmed by TEM, SEM, and EDX examination. TEM images revealed extracellular as well as cytoplasmic and vacuolar cadmium nanoparticle formation, further validated by presence of ycf1 gene and increased biosynthesis of GSH under cadmium stress...
September 17, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28920114/nano-and-micromotors-for-cleaning-polluted-waters-focused-review-on-pollutant-removal-mechanisms
#5
REVIEW
Hamed Eskandarloo, Arkaye Kierulf, Alireza Abbaspourrad
Nano- and micromotors are machines designed to self-propel and-in the process of propelling themselves-perform specialized tasks like cleaning polluted waters. These motors offer distinct advantages over conventionally static decontamination methods, owing to their ability to move around and self-mix-which heightens the interaction between their active sites and target pollutants-thus improving their speed and efficiency, which could potentially decrease treatment times and costs. In the last decade, considerable research efforts have been expended on exploring various mechanisms by which these motors can self-propel and remove pollutants, proving that the removal of oil droplets, heavy metals, and organic compounds using these synthetic motors is possible...
September 18, 2017: Nanoscale
https://www.readbyqxmd.com/read/28919903/the-role-of-soil-solarization-in-india-how-an-unnoticed-practice-could-support-pest-control
#6
REVIEW
Harsimran K Gill, Iqbal S Aujla, Luigi De Bellis, Andrea Luvisi
Plant protection represents one of the strategies to fill the yield gap and to achieve food security, a key topic for India development. Analysis of climate risks for crops indicates that South Asia is one of the regions most exposed to the adverse impact on many plants that are relevant to inhabitants exposed to food safety risks. Furthermore, accumulation of pesticide residues in the aquatic and other ecosystems is becoming a significant threat in India. These perspectives require to develop programs of crop protection that can be feasible according to Indian rural development and pollution policy...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28919889/dehalococcoides-as-a-potential-biomarker-evidence-for-uncharacterized-organohalides-in-environmental-samples
#7
Qihong Lu, Ling Yu, Zhiwei Liang, Qingyun Yan, Zhili He, Tiangang Luan, Dawei Liang, Shanquan Wang
The massive production and improper disposal of organohalides resulted in worldwide contamination in soil and water. However, their environmental survey based on chromatographic methods was hindered by challenges in testing the extremely wide variety of organohalides. Dehalococcoides as obligate organohalide-respiring bacteria exclusively use organohalides as electron acceptors to support their growth, of which the presence could be coupled with organohalides and, therefore, could be employed as a biomarker of the organohalide pollution...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28919532/performance-of-cellulose-acetate-ferric-oxide-nanocomposite-supported-metal-catalysts-toward-the-reduction-of-environmental-pollutants
#8
Esraa M Bakhsh, Shahid Ali Khan, Hadi M Marwani, Ekram Y Danish, Abdullah M Asiri, Sher Bahadar Khan
Water contamination by toxic compounds has become one of the most serious problems worldwide. Catalytic reduction using metal nanoparticles offer opportunities for environmental benefits. In this study, cellulose acetate-ferric oxide nanocomposite (CA/Fe2O3) was prepared and used as support for metal nanoparticles. After adsorption of Ag, Cu or Ni ions from aqueous solutions, metal ions associated with CA/Fe2O3 were treated with sodium borohydride to prepare Ag, Cu and Ni nanoparticles loaded CA/Fe2O3. The CA/Fe2O3 supported Ag, Cu or Ni nanoparticles was evaluated as a catalyst for pollutants degradation...
September 14, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28919119/global-regional-and-national-comparative-risk-assessment-of-84-behavioural-environmental-and-occupational-and-metabolic-risks-or-clusters-of-risks-1990-2016-a-systematic-analysis-for-the-global-burden-of-disease-study-2016
#9
(no author information available yet)
BACKGROUND: The Global Burden of Diseases, Injuries, and Risk Factors Study 2016 (GBD 2016) provides a comprehensive assessment of risk factor exposure and attributable burden of disease. By providing estimates over a long time series, this study can monitor risk exposure trends critical to health surveillance and inform policy debates on the importance of addressing risks in context. METHODS: We used the comparative risk assessment framework developed for previous iterations of GBD to estimate levels and trends in exposure, attributable deaths, and attributable disability-adjusted life-years (DALYs), by age group, sex, year, and location for 84 behavioural, environmental and occupational, and metabolic risks or clusters of risks from 1990 to 2016...
September 16, 2017: Lancet
https://www.readbyqxmd.com/read/28918639/identification-of-novel-hydrogen-substituted-polyfluoroalkyl-ether-sulfonates-in-environmental-matrices-near-metal-plating-facilities
#10
Yongfeng Lin, Ting Ruan, Aifeng Liu, Guibin Jiang
Environmental occurrence and behaviors of 6:2 chlorinated polyfluoroalkyl ether sulfonate (Cl-6:2 PFESA, with trade name F-53B) have been received increasing attention recently. Nevertheless, its potential fates under diversified conditions remain concealed. In this study, susceptibility of Cl-6:2 PFESA to reductive dehalogenation was tested in an anaerobic super-reduced cyanocobalamin assay. A rapid transformation of dosed Cl-6:2 PFESA was observed, with a hydrogen-substituted polyfluoroalkyl ether sulfonate (1H-6:2 PFESA) identified as the predominant product by a non-target screening workflow...
September 18, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28918628/breaking-benzene-aromaticity-computational-insights-into-the-mechanism-of-the-tungsten-containing-benzoyl-coa-reductase
#11
Martin Culka, Simona G Huwiler, Matthias Boll, G Matthias Ullmann
Aromatic compounds are environmental pollutants with toxic and carcinogenic properties. Despite the stability of aromatic rings, bacteria are able to degrade the aromatic compounds into simple metabolites and use them as growth substrates under oxic or even under anoxic conditions. In anaerobic microorganisms, most monocyclic aromatic growth substrates are converted to the central intermediate benzoyl-coenzyme A, which is enzymatically reduced to cyclohexa-1,5-dienoyl-CoA. The strcitly anaerobic bacterium \textit{Geobacter metallireducens} uses the class II benzoyl-CoA reductase complex for this reaction...
September 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28918600/morphology-and-size-of-blood-cells-of-rhinella-arenarum-hensel-1867-as-environmental-health-assessment-in-disturbed-aquatic-ecosystem-from-central-argentina
#12
Zulma Anahí Salinas, Mariana Baraquet, Pablo Raúl Grenat, Adolfo Ludovico Martino, Nancy Edith Salas
Four populations of Rhinella arenarum from aquatic environments with different degrees of disturbance in central Argentina were compared to assess the ability of cytomorphology and cytomorphometry of blood cells as a hematological biomarker. A total of 93 specimens of R. arenarum (adults sexually mature) were captured during the spring. From the analysis of cell, no variations were found in terms of morphology, whereas in nuclear and cell areas and Price-Jones curves, we observed a smaller size in erythrocytes of individuals inhabiting the site most altered, "Villa Dalcar," as well as for leukocytes, lymphocytes, neutrophils, and eosinophils for the same site...
September 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28918526/coupling-population-dynamics-with-earth-system-models-the-popem-model
#13
Andrés Navarro, Raúl Moreno, Alfonso Jiménez-Alcázar, Francisco J Tapiador
Precise modeling of CO2 emissions is important for environmental research. This paper presents a new model of human population dynamics that can be embedded into ESMs (Earth System Models) to improve climate modeling. Through a system dynamics approach, we develop a cohort-component model that successfully simulates historical population dynamics with fine spatial resolution (about 1°×1°). The population projections are used to improve the estimates of CO2 emissions, thus transcending the bulk approach of existing models and allowing more realistic non-linear effects to feature in the simulations...
September 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28918339/interference-of-dibutylphthalate-on-human-prostate-cell-viability
#14
Mariana Di Lorenzo, Maurizio Forte, Salvatore Valiante, Vincenza Laforgia, Maria De Falco
Dibutylphthalate (DBP) is an environmental pollutant widely used as plasticizer in a variety of industrial applications worldwide. This agent can be found in personal-care products, children's toy, pharmaceuticals, food products. Exposure to DBP can occur via ingestion and inhalation as well as intravenous or skin contact. DBP belongs to the family of endocrine disrupting chemicals (EDCs) and its effects on reproductive system were demonstrated both in vivo and in vitro. In the present study we evaluated the effects of DBP on human prostate adenocarcinoma epithelial cells (LNCaP) in order to highlight xenoestrogens influence on human prostate...
September 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28917904/metal-organic-framework-preparation-using-magnetic-graphene-oxide-%C3%AE-cyclodextrin-for-neonicotinoid-pesticide-adsorption-and-removal
#15
Guangyang Liu, Lingyun Li, Donghui Xu, Xiaodong Huang, Xiaomin Xu, Shuning Zheng, Yanguo Zhang, Huan Lin
A novel magnetic copper-based metal-organic framework (M-MOF) was prepared using a Fe4O3-graphene oxide (GO)-β-cyclodextrin (β-CD) nanocomposite as the magnetic core and support, and used for adsorption and removal of neonicotinoid insecticide pollutants from aqueous solution. M-MOF characterization suggested that (1)Fe4O3-GO-β-CD consisted of a thin single layer with anchored Fe3O4. The M-MOF was coated on the Fe4O3-GO-β-CD surface. The M-MOF had a large Brunauer-Emmett-Teller surface area (250.33m(2)g(-1)) and high super-paramagnetism with saturation magnetization of 10...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917819/seabirds-and-marine-plastic-debris-in-the-northeastern-atlantic-a-synthesis-and-recommendations-for-monitoring-and-research
#16
REVIEW
Nina J O'Hanlon, Neil A James, Elizabeth A Masden, Alexander L Bond
Marine plastic pollution is an increasing, and global, environmental issue. Numerous marine species are affected by plastic debris through entanglement, nest incorporation, and ingestion, which can lead to lethal and sub-lethal impacts. However, in the northeastern Atlantic Ocean, an area of international importance for seabirds, there has been little effort to date to assess information from studies of wildlife and plastic to better understand the spatiotemporal variation of how marine plastic affects different seabird species...
September 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28917211/bactericidal-and-catalytic-performance-of-green-nanocomposite-based-on-chitosan-carbon-black-fiber-supported-monometallic-and-bimetallic-nanoparticles
#17
Fayaz Ali, Sher Bahadar Khan, Tahseen Kamal, Yasir Anwar, Khalid A Alamry, Abdullah M Asiri
Nanoparticles were synthesized on the surface of green nanocomposite based on carbon black dispersed in chitosan (CB-CS) fibres. The nanoparticles were monometallic Co, Ag and Cu and bimetallic Co + Cu and Co + Ag. The CB-CS fibres were prepared and introduced into separate metal salt solutions containing Co(2+), Ag(+) and Cu(2+) and mixed Co(2+)+Cu(2+) and Co(2+)+Ag(+) ions. The metal ions immobilized on the surface of CB-CS were reduced using sodium borohydride (NaBH4) as reducing agent to synthesize the corresponding zero-valent metal nanoparticles-loaded CB-CS fibres...
August 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/28917200/improved-visible-light-activities-for-degrading-pollutants-on-tio2-g-c3n4-nanocomposites-by-decorating-spr-au-nanoparticles-and-2-4-dichlorophenol-decomposition-path
#18
Amir Zada, Yang Qu, Sharafat Ali, Ning Sun, Hongwei Lu, Rui Yan, Xuliang Zhang, Liqiang Jing
It has been clearly demonstrated that the visible-light photocatalytic activities of g-C3N4 (CN) for degrading 2,4-dichlorophenol (2,4-DCP) and bisphenol A (BPA) could be improved by fabricating nanocomposites with a proper amount of nanocrystalline anatase TiO2. Interestingly, the visible-light activities of the amount-optimized nanocomposite could be further improved after decorating Au nanoparticles, with 5.11- and 3.1-time improvement respectively for 2,4-DCP and BPA compared to that of CN, even much higher than that of P25 TiO2 under UV-vis irradiation...
September 7, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28917192/mass-loading-and-emission-of-thirty-seven-pharmaceuticals-in-a-typical-municipal-wastewater-treatment-plant-in-hunan-province-southern-china
#19
Huiju Lin, Haipu Li, Leilei Chen, Lei Li, Ling Yin, Hsiaowan Lee, Zhaoguang Yang
The occurrence, fate, mass loading and environmental emission of 37 pharmaceuticals were studied through an integrated approach involving both dissolved and adsorbed phase at a typical wastewater treatment plant in Hunan Province, Southern China. The results displayed the prevalence of 24 and 23 compounds in dissolved phase of influent and effluent, respectively. Fourteen compounds were found adsorbed onto sludge with a mean concentration ranging from 0.85 to 2900μg/kg dry weight. Twelve compounds exhibited high adsorption potential onto suspended particulate matter (SPM) with a mean fraction ranging from 8...
September 13, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28917179/emission-reduction-potentials-of-improved-cookstoves-and-their-issues-in-adoption-an-indian-outlook
#20
REVIEW
Monikankana Sharma, S Dasappa
Biomass as a fuel for cooking is a common practice in rural India, and about 700 million people use traditional stoves to meet their energy demand. However, the thermal and the combustion efficiencies of these stoves are very low, leading to an inefficient use of biomass, and also, resulting in significant indoor air pollution. Research development has however led to the development of some improved stoves viz., natural draft and forced draft for both domestic as well as large scale cooking applications and government is trying to promote them...
September 13, 2017: Journal of Environmental Management
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