842,162 results match your criteria energy ∼450-500

The Inside-Out of End-Stage Liver Disease: Hepatocytes are the Keystone.

Semin Liver Dis 2021 May 15. Epub 2021 May 15.

Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania.

Chronic liver injury results in cirrhosis and end-stage liver disease (ESLD) which represents a leading cause of death worldwide, affecting people in their most productive years of life. Medical therapy can extend life, but the only definitive treatment is liver transplantation (LT). However, LT remains limited by access to quality donor organs and suboptimal long-term outcomes. Read More

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Co-treatment of electroplating sludge, copper slag, and spent cathode carbon for recovering and solidifying heavy metals.

J Hazard Mater 2021 May 5;417:126020. Epub 2021 May 5.

Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming, China; National Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Kunming University of Science and Technology, Kunming, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, China.

Electroplating sludge, a hazardous solid waste product of the electroplating industry, presents a serious environmental pollution risk. In this study, an environmentally friendly process for solidifying and recovering heavy metals from electroplating sludge using copper slag and spent cathode carbon is proposed. Combining the results of toxicity characteristic leaching procedure tests, thermodynamic analysis, chemical analysis, X-ray diffraction analysis, and electron probe microanalysis, the Cr, Ni, Cu, Fe, and F transformation mechanisms were first probed during vitrification. Read More

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Reaction mechanism of antibiotic bacteria residues as a green reductant for highly efficient recycling of spent lithium-ion batteries.

J Hazard Mater 2021 May 9;417:126032. Epub 2021 May 9.

School of Metallurgy and Environment, Central South University, Changsha 410083, China. Electronic address:

In this study, antibiotic bacteria residues (ABRs) is proposed as a novel green reducing agent and it is found that the reducing agent can realize the efficient recovery of the valuable metals in spent cathode powder (SCP), reduce the environmental pollution and realize the high-value utilization of the biomass waste. The leaching efficiency of Ni, Co, Mn and Li can reach 99.57%, 98. Read More

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A review on non-thermal plasma treatment of water contaminated with antibiotics.

J Hazard Mater 2021 Feb 22;417:125481. Epub 2021 Feb 22.

GREMI, UMR 7344, Université d'Orléans, CNRS, Orléans, France.

Large amounts of antibiotics are produced and consumed worldwide, while wastewater treatment is still rather inefficient, leading to considerable water contamination. Concentrations of antibiotics in the environment are often sufficiently high to exert a selective pressure on bacteria of clinical importance that increases the prevalence of resistance. Since the drastic reduction in the use of antibiotics is not envisaged, efforts to reduce their input into the environment by improving treatment of contaminated wastewater is essential to limit uncontrollable spread of antibiotic resistance. Read More

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February 2021

Recovering chemical sludge from the zero liquid discharge system of flue gas desulfurization wastewater as flame retardants by a stepwise precipitation process.

J Hazard Mater 2021 May 7;417:126054. Epub 2021 May 7.

Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China.

In this study, a five-stage stepwise precipitation process, including pre-sedimentation, magnesium removal, gypsum precipitation, ettringite precipitation and calcium removal, was proposed as a softening pretreatment for zero liquid discharge system for flue gas desulfurization wastewater. Batch tests and long-term bench-scale experiment showed that magnesium, sulfate and calcium were efficiently removed with efficiencies all above 98.0%, leaving a clean effluent majorly containing NaCl and NaOH. Read More

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2D confinement freestanding graphene oxide composite membranes with enriched oxygen vacancies for enhanced organic contaminants removal via peroxymonosulfate activation.

J Hazard Mater 2021 May 8;417:126028. Epub 2021 May 8.

Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China. Electronic address:

Introducing membrane filtration into advanced oxidation processes to decrease energy and cost consumption has been considered as a promising direction in environmental remediation. In this work, we firstly developed a kind of novel lawn-like FeO@CoFe@nitrogen-doped reduced graphene oxide@carbon nanotube composites (FeCo@GCTs) through in-situ pyrolysis of self-assembly of Prussian blue analogues and GO, followed through a vacuum-assisted filtration strategy to fabricate 2D confinement freestanding GO composite membrane. Electrochemical analysis and H-TPR revealed the superiority of FeCo@GCTs as ideal electron acceptor, and this unique lawn-like structure concentrated active sites with a confined space and enriched oxygen vacancies that realized 98. Read More

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Production of medium-chain fatty acid caproate from Chinese liquor distillers' grain using pit mud as the fermentation microbes.

J Hazard Mater 2021 May 5;417:126037. Epub 2021 May 5.

Co-Innovation Center of Efficient Processing and Utilization of Forestry Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China. Electronic address:

Chinese liquor distillers' grain (CLDG) is an abundant industrial organic waste showing high potential as feedstock for biofuel conversion. In this study, CLDG was used as substrate by microbial community in pit mud to produce medium-chain fatty acids (especially caproate). Simulated and real fermentation were used to evaluate the effect of ethanol and lactic acid being the electronic donors (EDs) during the anaerobic chain elongation (CE). Read More

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Differences in kinetic metabolomics in Eisenia fetida under single and dual exposure of imidacloprid and dinotefuran at environmentally relevant concentrations.

J Hazard Mater 2021 May 8;417:126001. Epub 2021 May 8.

Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China. Electronic address:

Metabolomic responses of earthworms to neonicotinoids are important for understanding their molecular-level toxicity and assessing their ecological risks, but little is known until now. We investigated impact of imidacloprid (IMI, 52.6 ng/g) and dinotefuran (DIN, 52. Read More

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Spatial characteristics of microplastics in the high-altitude area on the Tibetan Plateau.

J Hazard Mater 2021 May 7;417:126034. Epub 2021 May 7.

School of Renewable Energy, North China Electric Power University, Beijing 102206, China.

Microplastics (MPs) have been widely detected in the environments, yet the sources of MPs in freshwater of remote areas at high altitude were not well understood. This study investigated the abundance and distribution of MPs in water bodies and sediments at the Qinghai-Tibet Plateau (QTP). MPs were detected in all samples (47 water and 33 sediment samples) with the mean abundance of 624. Read More

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GO-TiC two-dimensional heterojunction nanomaterial for anticorrosion enhancement of epoxy zinc-rich coatings.

J Hazard Mater 2021 May 7;417:126048. Epub 2021 May 7.

School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China.

MXenes are a unique family of two-dimensional (2D) transition metal carbides and/or nitrides, which have been proven useful for energy storage, water purification, and biomedical applications. Herein, a kind of heterojunction structure was designed by grafting highly conductive MXene (TiC) on the graphene oxide (GO) nanosheets, which was confirmed by Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectronic spectroscopy (XPS) and Raman results. Open circuit potential (OCP), electrochemical impedance spectroscopy (EIS) and salt spray measurements corroborated that inclusion of 0. Read More

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Seasonal microplastic variations in estuarine sediments from urban canal on the west coast of Thailand: A case study in Phuket province.

Mar Pollut Bull 2021 May 12;168:112452. Epub 2021 May 12.

Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Phuket 83120, Thailand.

To improve knowledge of the relationships of human activities with microplastic pollution in the urban estuary in Phuket province, which has a densely populated city on the western coast of Thailand, a total of 463 plastic-like items from 24 sediment samples in the dry and the rainy seasons were identified by micro-Fourier transform infrared spectroscopy. The microplastic abundance ranged in 300-900 and 33-400 items/kg dry weight in the dry and the rainy seasons, respectively, indicating that the estuary is moderately contaminated with microplastics. The most abundant polymer types were rayon and polyester with colored fibers, suggesting that the microplastics deposited in this area originate mainly from washing effluents. Read More

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In vitro cellular activity of maghemite/cerium oxide magnetic nanoparticles with antioxidant properties.

Colloids Surf B Biointerfaces 2021 May 6;204:111824. Epub 2021 May 6.

Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic. Electronic address:

Magnetic γ-FeO/CeO nanoparticles were obtained by precipitation of Ce(NO) with ammonia in the presence of γ-FeO seeds. The formation of CeO nanoparticles on the seeds was confirmed by transmission electron microscopy linked with selected area electron diffraction, energy-dispersive X-ray spectroscopy, electron energy loss spectroscopy, and dynamic light scattering. The γ-FeO/CeO particle surface was functionalized with PEG-neridronate to improve the colloidal stability in PBS and biocompatibility. Read More

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Dual-energy CT of the liver: True noncontrast vs. virtual noncontrast images derived from multiple phases for the diagnosis of fatty liver.

Eur J Radiol 2021 Apr 29;140:109741. Epub 2021 Apr 29.

Siemens Healthineers Ltd., 23 Chungjeong-ro, Seoul, 03737, Republic of Korea.

Purpose: To evaluate the difference in liver density and to compare the performance to diagnose fatty liver between true noncontrast (TNC) images and virtual noncontrast (VNC) images generated from dual-energy CT (DECT).

Materials And Methods: Patients who underwent liver dynamic DECT and MRI were included (n = 49). Two observers measured the liver and spleen densities on TNC images and three VNC images from the arterial, portal and delayed phases of DECT (VNCa, VNCp and VNCd, respectively). Read More

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Rational design, chemical synthesis and cellular evaluation of novel 1,3-diynyl derivatives of noscapine as potent tubulin binding anticancer agents.

J Mol Graph Model 2021 May 5;106:107933. Epub 2021 May 5.

Centre of Excellence in Natural Products and Therapeutics, Department of Biotechnology and Bioinformatics, Sambalpur University, Jyoti Vihar, Burla, Sambalpur-768019, Odisha, India. Electronic address:

We present a new class of derivatives of noscapine, 1,3-diynyl-noscapinoids of an antitussive plant alkaloid, noscapine based on our in silico efforts that binds tubulin and displays anticancer activity against a panel of breast cancer cells. Structure-activity analyses pointed the C-9 position of the isoquinoline ring which was modified by coupling of 1,3-diynyl structural motifs to rationally design and screened a series of novel 1,3-diynyl-noscapinoids (20-22) with robust binding affinity with tubulin. The selected 1,3-diynyl-noscapinoids, 20-22 revealed improved predicted binding energy of -6. Read More

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Pairing denitrifying phosphorus accumulating organisms with anaerobic ammonium oxidizing bacteria for simultaneous N and P removal.

Sci Total Environ 2021 May 5;787:147521. Epub 2021 May 5.

University of Washington, Department of Civil & Environmental Engineering, 616 Northlake Place, Seattle, WA 98195, USA. Electronic address:

Coupling of denitrifying polyphosphate accumulating organisms (DPAO) with anaerobic ammonium oxidizing (Anammox) bacteria in a single treatment scheme has so far been unsuccessful but could offer substantial energy savings, minimize sludge production, while achieving simultaneous carbon, nitrogen and phosphate removal. However, both organisms compete for nitrite and have vastly different growth rates and therefore the goal of this study was to uncouple their solid retention time (SRT) by growing them in different sludge fractions and to determine their biomass specific kinetic properties. Anammox bacteria were grown in a biofilm for longer SRTs and DPAO in flocs to allow shorter SRTs. Read More

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Immobilization of cadmium and lead using phosphorus-rich animal-derived and iron-modified plant-derived biochars under dynamic redox conditions in a paddy soil.

Environ Int 2021 May 12;156:106628. Epub 2021 May 12.

University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; University of Sejong, Department of Environment, Energy and Geoinformatics, Guangjin-Gu, Seoul 05006, Republic of Korea. Electronic address:

Functionalized biochar has gained extensive interests as a sustainable amendment for an effective remediation of paddy soils contaminated with heavy metals (HMs). We examined the efficiency of pig carcass-derived biochar (P-rich biochar, total P = 8.3%) and pristine (raw biochar, total Fe = 0. Read More

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Root responses to localised soil arsenic enrichment in the fern Pityrogramma calomelanos var. austroamericana grown in rhizoboxes.

Plant Physiol Biochem 2021 Apr 28;164:147-159. Epub 2021 Apr 28.

Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, QLD, 4072, Australia.

The terrestrial fern Pityrogramma calomelanos, a cosmopolitan tropical species, is one of the strongest known arsenic (As) hyperaccumulator plants. This study aimed to determine whether P. calomelanos preferentially forages for arsenite (As) or arsenate (As) in As-contaminated soils, and whether a positive root response to As enhances accumulation in P. Read More

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Source apportionment of pulping wastewater and application of mechanical vapor recompression: Environmental and economic analyses.

J Environ Manage 2021 May 12;292:112740. Epub 2021 May 12.

State Key Laboratory of Pulp and Paper Engineering, Plant Fiber Research Center, South China University of Technology, Guangzhou, CN, 510640, China. Electronic address:

It is expected that low-energy and scientific zero discharge of chemical-mechanical pulping wastewater will be achieved by applying the mechanical vapor recompression (MVR) technology. In this paper, the equal-standard pollution load model was introduced into pulp and paper field to parse the pollution sources for the first time. The results from the source apportionment indicated that the screw press and concentrating were the major pollution unit operations, and their cumulative load ratio reached 92. Read More

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The impact of emerging domestic and commercial electro-heating technologies on energy consumption and quality parameters of cooked beef.

Meat Sci 2021 May 8;179:108550. Epub 2021 May 8.

UCD Institute of Food and Health, University College Dublin, Dublin, Ireland. Electronic address:

The purpose of this study was to investigate the effects of e-Cooker® and moderate electric field (MEF) cooking on physical and chemical changes occurring during the cooking of meat. Beef muscle samples (38.86 ± 0. Read More

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Emerging technologies for biofuel production: A critical review on recent progress, challenges and perspectives.

J Environ Manage 2021 May 12;290:112627. Epub 2021 May 12.

Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland. Electronic address:

Due to increasing anthropogenic activities, especially industry and transport, the fossil fuel demand and consumption have increased proportionally, causing serious environmental issues. This attracted researchers and scientists to develop new alternative energy sources. Therefore, this review covers the biofuel production potential and challenges related to various feedstocks and advances in process technologies. Read More

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Analytical characterization of DNA and RNA oligonucleotides by hydrophilic interaction liquid chromatography-tandem mass spectrometry.

J Chromatogr A 2021 Apr 27;1648:462184. Epub 2021 Apr 27.

Regeneron Pharmaceuticals Inc., Tarrytown, NY 10591, USA.

Liquid chromatography-mass spectrometry has been widely implemented as a powerful tool for providing in-depth characterization of nucleic acid therapeutic modalities, such as anti-sense oligonucleotides and small interfering RNAs (siRNAs). In this study, we developed a generic hydrophilic interaction liquid chromatography (HILIC) hyphenated with tandem mass spectrometry method in the absence of ion-pairing reagents and demonstrated its capability as an attractive and robust alternative for oligonucleotide and siRNA analysis. HILIC separation of mixtures of unmodified and fully phosphorothioate-modified DNA oligonucleotides and their synthetic 3' exonuclease-digested metabolites were also assessed. Read More

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Proteomic insights into protostane triterpene biosynthesis regulatory mechanism after MeJA treatment in Alisma orientale (Sam.) Juz.

Biochim Biophys Acta Proteins Proteom 2021 May 12:140671. Epub 2021 May 12.

School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.

Protostane triterpenes in Alisma orientale (Sam.) Juz. have unique structural features with distinct pharmacological activities. Read More

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Comparative transcriptomics reveal different mechanisms for hyphal growth across four plant-associated dimorphic fungi.

Fungal Genet Biol 2021 May 12:103565. Epub 2021 May 12.

Department of Botany and Plant Pathology, Purdue University, 915 W State St, West Lafayette, IN 47907-2054, USA. Electronic address:

Fungal dimorphism is a phenomenon by which a fungus can grow both as a yeast form and a hyphal form. It is frequently related to pathogenicity as different growth forms are more suitable fordifferent functions during a life cycle. Among dimorphic plant pathogens, the corn smut fungus Ustilago maydis serves as a model organism to understand fungal dimorphism and its effect on pathogenicity. Read More

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Impact of tumor site on the prognosis of salivary gland neoplasms: a systematic review and meta-analysis.

Crit Rev Oncol Hematol 2021 May 12:103352. Epub 2021 May 12.

Brazilian Bioscience National Laboratory, Brazil Center of Research in Energy and Materials, Campinas, Brazil.

In numerous types of cancer, the primary tumor site can show a correlation with disease behavior and survival outcomes. In salivary gland tumors (SGTs) this association remains controversial. This study assessed the association between primary sites of SGTs and prognosis. Read More

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Activation state of the supramammillary nucleus regulates body composition and peripheral fuel metabolism.

Neuroscience 2021 May 12. Epub 2021 May 12.

VeroScience LLC, Tiverton, RI 02878, United States. Electronic address:

Whole body fuel metabolism and energy balance are controlled by an interactive brain neuronal circuitry involving multiple brain centers regulating cognition, circadian rhythms, reward, feeding and peripheral biochemical metabolism. The hypothalamic supramammillary nucleus (SuMN) comprises an integral node having connections with these metabolically relevant centers, and thus could be a key central coordination center for regulating peripheral energy balance. This study investigated the effect of chronically diminishing or increasing SuMN neuronal activity on body composition and peripheral fuel metabolism. Read More

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In-vitro evaluation of antioxidant and anticholinesterase activities of novel pyridine, quinoxaline and s-triazine derivatives.

Environ Res 2021 May 12:111320. Epub 2021 May 12.

Department of Chemistry, Organic and Biomolecular Chemistry Laboratories, Yogi Vemana University, Kadapa-516005, Andhra Pradesh, India.

Cholinesterase enzymes such as acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) cause hydrolysis of acetylcholine (ACh), a neurotransmitter responsible for the cognitive functions of the brain such as acquiring knowledge and comprehension. Therefore, inhibition of these enzymes is an effective process to curb the progressive and fatal neurological Alzheimer's disease (AD). Herein, we explored the potential inhibitory activities of various pyridine, quinoxaline, and triazine derivatives (3a-k, 6a-j and 11a-h) against AChE and BuChE enzymes by following the modified Ellman's method. Read More

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Recent progress in green and biopolymer based photocatalysts for the abatement of aquatic pollutants.

Environ Res 2021 May 12:111324. Epub 2021 May 12.

Laboratorio de Investigaciones Ambientales Zonas Áridas, Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez 1775, Arica, Chile.

Enormous research studies on the abatement of anthropogenic aquatic pollutants including organic dyes, pesticides, cosmetics, antibiotics and inorganic species by using varieties of semiconductor photocatalysts have been reported in recent decades. Besides, many of these photocatalysts suffer in real applications owing to their high production cost and low stability. In many cases, the photocatalysts themselves are being considered as secondary pollutants. Read More

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A novel nano therapeutic using convalescent plasma derived exosomal (CP) for COVID-19: A combined hyperactive immune modulation and diagnostics.

Chem Biol Interact 2021 May 12:109497. Epub 2021 May 12.

Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia; Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute (HMRI), University of Newcastle, New Lambton Heights, Newcastle, NSW 2305, Australia.

Extracellular vesicles like exosomes are important therapeutic tactics for treating COVID -19. By utilizing convalescent plasma derived exosomes (CP) from COVID-19 recovered persistence could accelerate the treatment strategies in the current state of affairs. Adequate literature has shown that administering the exosome to the in vivo system could be beneficial and could target the pathogens in an effective and precise manner. Read More

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The nucleotide binding affinities of two critical conformations of Escherichia coli ATP synthase.

Arch Biochem Biophys 2021 May 12:108899. Epub 2021 May 12.

Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, 79409, USA; Center for Membrane Protein Research, Texas Tech University Health Sciences Center, Lubbock, TX, 79430, USA. Electronic address:

ATP synthase is essential in aerobic energy metabolism, and the rotary catalytic mechanism is one of the core concepts to understand the energetic functions of ATP synthase. Disulfide bonds formed by oxidizing a pair of cysteine mutations halted the rotation of the γ subunit in two critical conformations, the ATP-waiting dwell (αE284C/γQ274C) and the catalytic dwell (αE284C/γL276C). Tryptophan fluorescence was used to measure the nucleotide binding affinities for MgATP, MgADP and MgADP-AlF (a transition state analog) to wild-type and mutant F under reducing and oxidizing conditions. Read More

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Antisense oligonucleotide-mediated knockdown of Mpzl3 attenuates the negative metabolic effects of diet-induced obesity in mice.

Physiol Rep 2021 May;9(9):e14853

Department of Anesthesiology & Perioperative Medicine, Penn State University College of Medicine, Hershey, PA, USA.

Previously, we demonstrated that global knockout (KO) of the gene encoding myelin protein zero-like 3 (Mpzl3) results in reduced body weight and adiposity, increased energy expenditure, and reduced hepatic lipid synthesis in mice. These mice also exhibit cyclic and progressive alopecia which may contribute to the observed hypermetabolic phenotype. The goal of the current study was to determine if acute and peripherally restricted knockdown of Mpzl3 could ameliorate the negative metabolic effects of exposure to a high-fat and sucrose, energy-dense (HED) diet similar to what was observed in global Mpzl3 KO mice in the absence of a skin phenotype. Read More

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