14,285 results match your criteria species thermal

Co-hydrothermal carbonization of swine manure and cellulose: Influence of mutual interaction of intermediates on properties of the products.

Sci Total Environ 2021 May 29;791:148134. Epub 2021 May 29.

School of Material Science and Engineering, University of Jinan, Jinan 250022, China. Electronic address:

Co-hydrothermal carbonization (HTC) of livestock manure and biomass might improve the fuel properties of the hydrochar due to the high reactivity of the biomass-derived intermediates with the abundant oxygen-containing functionalities. However, the complicated compositions make it difficult to explicit the specific roles of the individual components of biomass played in the co-HTC process. In this study, cellulose was used for co-HTC with swine manure to investigate the influence on the properties of the hydrochar. Read More

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Infrared-Emitting Multimodal Nanostructures for Controlled In Vivo Magnetic Hyperthermia.

Adv Mater 2021 Jun 12:e2100077. Epub 2021 Jun 12.

Nanomaterials for Bioimaging Group (nanoBIG), Universidad Autónoma de Madrid, Madrid, 28049, Spain.

Deliberate and local increase of the temperature within solid tumors represents an effective therapeutic approach. Thermal therapies embrace this concept leveraging the capability of some species to convert the absorbed energy into heat. To that end, magnetic hyperthermia (MHT) uses magnetic nanoparticles (MNPs) that can effectively dissipate the energy absorbed under alternating magnetic fields. Read More

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Genomic adaptations enabling Acidithiobacillus distribution across wide-ranging hot spring temperatures and pHs.

Microbiome 2021 Jun 11;9(1):135. Epub 2021 Jun 11.

School of Biological Sciences, The University of Auckland, Auckland, New Zealand.

Background: Terrestrial hot spring settings span a broad spectrum of physicochemistries. Physicochemical parameters, such as pH and temperature, are key factors influencing differences in microbial composition across diverse geothermal areas. Nonetheless, analysis of hot spring pools from the Taupo Volcanic Zone (TVZ), New Zealand, revealed that some members of the bacterial genus, Acidithiobacillus, are prevalent across wide ranges of hot spring pHs and temperatures. Read More

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Temperature-Induced Sex Reversal in Reptiles: Prevalence, Discovery, and Evolutionary Implications.

Sex Dev 2021 Jun 10:1-9. Epub 2021 Jun 10.

Institute for Applied Ecology, University of Canberra, Canberra, Australian Capital Territory, Australia.

Sex reversal is the process by which an individual develops a phenotypic sex that is discordant with its chromosomal or genotypic sex. It occurs in many lineages of ectothermic vertebrates, such as fish, amphibians, and at least one agamid and one scincid reptile species. Sex reversal is usually triggered by an environmental cue that alters the genetically determined process of sexual differentiation, but it can also be caused by exposure to exogenous chemicals, hormones, or pollutants. Read More

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NIR-Triggered Multi-Mode Antitumor Therapy Based on Bi Se /Au Heterostructure with Enhanced Efficacy.

Small 2021 Jun 10:e2100961. Epub 2021 Jun 10.

State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.

Of all the reaction oxygen species (ROS) therapeutic strategies, NIR light-induced photocatalytic therapy (PCT) based on semiconductor nanomaterials has attracted increasing attention. However, the photocatalysts suffer from rapid recombination of electron-hole pairs due to the narrow band gaps, which are greatly restricted in PCT application. Herein, Bi Se /Au heterostructured photocatalysts are fabricated to solve the problems by introducing Au nanoparticles (NPs) in situ on the surface of the hollow mesoporous structured Bi Se . Read More

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Thermal Treatment Effect on CO and NO Adsorption on Fe(II) and Fe(III) Species in FeO-Based MIL-Type Metal-Organic Frameworks: A Density Functional Theory Study.

Inorg Chem 2021 Jun 10. Epub 2021 Jun 10.

Department of Chemistry, Pritzker School of Molecular Engineering, James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States.

The properties of metal-organic frameworks (MOFs) based on triiron oxo-centered (FeO) metal nodes are often related to the efficiency of the removal of the solvent molecules and the counteranion chemisorbed on the FeO unit by postsynthetic thermal treatment. Temperature, time, and the reaction environment play a significant role in modifying key features of the materials, that is, the number of open metal sites and the reduction of Fe(III) centers to Fe(II). IR spectroscopy allows the inspection of these postsynthetic modifications by using carbon monoxide (CO) and nitric oxide (NO) as probe molecules. Read More

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Microbiome of juvenile corals in the outer reef slope and lagoon of the South China Sea: Insight into coral acclimatization to extreme thermal environments.

Environ Microbiol 2021 Jun 10. Epub 2021 Jun 10.

Coral Reef Research Center of China, Guangxi University, Nanning, 530004, China.

Environmental conditions between the outer reef slope (ORS) and lagoon in tropical atolls are significantly different, but the variations of juvenile coral-microbiomes in the two environments and their relationship with coral thermal acclimatization are poorly understood. We explored this issue based on local water conditions and the microbiome of juvenile corals in the ORS and lagoon in the central South China Sea. Coral-symbiotic Symbiodiniaceae showed significant differences among coral species; Pocillopora verrucosa and Pachyseris rugosa in the ORS, and Acropora formosa in the lagoon were dominated by Durusdinium, but other corals were dominated by Cladocopium. Read More

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Reproductive plasticity of Hawaiian Montipora corals following thermal stress.

Sci Rep 2021 Jun 9;11(1):12525. Epub 2021 Jun 9.

Smithsonian Conservation Biology Institute, Front Royal, VA, USA.

Ocean warming, fueled by climate change, is the primary cause of coral bleaching events which are predicted to increase in frequency. Bleaching is generally damaging to coral reproduction, can be exacerbated by concomitant stressors like ultraviolet radiation (UVR), and can have lasting impacts to successful reproduction and potential adaptation. We compared morphological and physiological reproductive metrics (e. Read More

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Antinociceptive and anti-inflammatory activities of Hymenaea martiana Hayne (Fabaceae) in mice.

Braz J Biol 2021 2;82:e240359. Epub 2021 Jun 2.

Universidade Estadual de Feira de Santana - UEFS, Programa de Pós-Graduação em Biotecnologia, Feira de Santana, BA, Brasil.

Hymenaea martiana is a species popularly known in Northeastern Brazil as "jatobá" and used in folk medicine to treat pain and inflammation. The aim of this work was to evaluate the antinociceptive and anti-inflammatory activity of H. martiana. Read More

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Acclimation to cyclic hypoxia improves thermal tolerance and copper survival in the caridean shrimp Palaemon varians.

Comp Biochem Physiol A Mol Integr Physiol 2021 Jun 5;259:111010. Epub 2021 Jun 5.

School of Ocean and Earth Science, University of Southampton, National Oceanography Centre Southampton, Southampton SO14 3ZH, UK.

In response to the continuous variation of environmental parameters, species must be able to adjust their physiology to overcome stressful conditions, a process known as acclimatization. Numerous laboratory studies have been conducted to understand and describe the mechanisms of acclimation to one environmental stressor (e.g. Read More

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Brief exposure to warm temperatures reduces intron retention in in a species with temperature-dependent sex determination.

Biol Lett 2021 Jun 9;17(6):20210167. Epub 2021 Jun 9.

School of Biological Sciences, Illinois State University, Normal, IL 61790, USA.

Animals with temperature-dependent sex determination (TSD) respond to thermal cues during early embryonic development to trigger gonadal differentiation. TSD has primarily been studied using constant temperature incubations, where embryos are exposed to constant male- or female-producing temperatures, and these studies have identified genes that display sex-specific expression in response to incubation temperature. , a histone demethylase gene, has received specific attention as it is among the initial genes to respond to incubation temperature and is necessary for testis development. Read More

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Thermal Analysis of a Mixture of Ribosomal Proteins by vT-ESI-MS: Toward a Parallel Approach for Characterizing the .

Anal Chem 2021 Jun 8. Epub 2021 Jun 8.

Department of Chemistry, Indiana University, Bloomington, Indiana 47401, United States.

The thermal stabilities of endogenous, intact proteins and protein assemblies in complex mixtures were characterized in parallel by means of variable-temperature electrospray ionization coupled to mass spectrometry (vT-ESI-MS). The method is demonstrated by directly measuring the melting transitions of seven proteins from a mixture of proteins derived from ribosomes. A proof-of-concept measurement of a fraction of an lysate is provided to extend this approach to characterize the thermal stability of a proteome. Read More

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Developmental and adult acclimation impact cold and drought survival of invasive tropical Drosophila kikkawai.

Biol Open 2021 Jun 8;10(6). Epub 2021 Jun 8.

Department of Genetics, Maharshi Dayanand University, Rohtak 124001, India.

Narrow distribution patterns of tropical Drosophila species are limited by lower resistance to cold or drought. In the invasive tropical Drosophila kikkawai, we tested whether developmental and adult acclimations at cooler temperatures could enhance its stress resistance level. Adult acclimation of winter collected body color morphs revealed a significant increase in the level of cold resistance. Read More

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A latitudinal cline in a courtship song character of .

J Neurogenet 2021 Jun 8:1-8. Epub 2021 Jun 8.

Department of Genetics & Genome Biology, University of Leicester, Leicester, UK.

The courtship song of male is generated by wing vibration and contains an interpulse interval (IPI) which is species-specific and usually falls in the mean range of 30-40 ms. The IPI is extremely temperature-sensitive, so we wondered whether flies collected along the eastern coast of Australia between latitudes 16.9°S and 42. Read More

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Overcoming the water oxidative limit for ultra-high-workfunction hole-doped polymers.

Nat Commun 2021 Jun 7;12(1):3345. Epub 2021 Jun 7.

Department of Physics, National University of Singapore, Singapore, Singapore.

It is widely thought that the water-oxidation reaction limits the maximum work function to about 5.25 eV for hole-doped semiconductors exposed to the ambient, constrained by the oxidation potential of air-saturated water. Here, we show that polymer organic semiconductors, when hole-doped, can show work functions up to 5. Read More

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Nanobiocide Based-Silver Nanomaterials Upon Coronaviruses: Approaches for Preventing Viral Infections.

Nanoscale Res Lett 2021 Jun 6;16(1):100. Epub 2021 Jun 6.

Department of Medical Nanotechnology, Applied Biophotonics Research Center, Science and Research Branch, Islamic Azad University, Tehran, 1477893855, Iran.

The effectiveness of silver nanomaterials (AgNMs), as antiviral agents, has been confirmed in humans against many different types of viruses. Nanobiocides-based AgNMs can be effectively applied to eliminate coronaviruses (CoVs), as the cause of various diseases in animals and humans, particularly the fatal human respiratory infections. Mostly, these NMs act effectively against CoVs, thanks to the NMs' fundamental anti-viral structures like reactive oxygen species (ROS), and photo-dynamic and photo-thermal abilities. Read More

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Terahertz Spectroscopic Analysis of the Vermilion Pigment in Free-Standing and Polyethylene-Mixed Forms.

ACS Omega 2021 Jun 20;6(21):13802-13806. Epub 2021 May 20.

Department of Physics, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul 03722, Republic of Korea.

Terahertz spectroscopy can be utilized as an effective nondestructive identification tool for the study of artist's pigments. Consequently, extensive measurements have been conducted on representative pigment species, and a few terahertz spectral databases have been constructed. However, the reported spectra were often acquired from pigment samples mixed with polyethylene at room temperature with low resolution, which often led to low-quality spectra with unresolved overlapping lines further broadened due to thermal effects. Read More

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Broad host range bacteriophages found in rhizosphere soil of a healthy tomato plant in Bulgaria.

Heliyon 2021 May 25;7(5):e07084. Epub 2021 May 25.

Sofia University St. "Kliment Ohridski", Faculty of Biology, Department of General and Industrial Microbiology, 8 Dragan Tsankov Blvd, Sofia 1000, Bulgaria.

The urgent need of research of new approaches to control bacterial disease on economical important crops, focuses our attention on bacteriophages as alternative biocontrol agents. Thus, the purpose of this paper is to present the isolation and initial characterization of three bacteriophages (SfXv124t/1, 2 and 3) isolated from rhizosphere soil of a healthy tomato plant in Bulgaria that are capable to lyse three phytopathogenic bacteria. The initial characterization includes determination of: their host range, plaque morphology, optimal storage temperature of pure phage lysates, their sensitivity to UV light, thermal inactivation, optimal multiplicity of infection (MOI) and virion morphology. Read More

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Controlling the alignment of 1D nanochannel arrays in oriented metal-organic framework films for host-guest materials design.

Chem Sci 2020 Jul 14;11(30):8005-8012. Epub 2020 Jul 14.

Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University Sakai Osaka 599-8531 Japan

Controlling the direction of molecular-scale pores enables the accommodation of guest molecular-scale species with alignment in the desired direction, allowing for the development of high-performance mechanical, thermal, electronic, photonic and biomedical organic devices (host-guest approach). Regularly ordered 1D nanochannels of metal-organic frameworks (MOFs) have been demonstrated as superior hosts for aligning functional molecules and polymers. However, controlling the orientation of MOF films with 1D nanochannels at commercially relevant scales remains a significant challenge. Read More

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Highly efficient adsorptive removal of toluene using silicon-modified activated carbon with improved fire resistance.

J Hazard Mater 2021 Aug 26;415:125753. Epub 2021 Mar 26.

National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, School of Environment and Energy, South China University of Technology, Guangzhou 510006, China. Electronic address:

Activated carbons (ACs) are widely applied in the removal of volatile organic compounds (VOCs) emitted from industrial processes, because of their high adsorption capacity, low cost and reusability. Their poor thermal stability under oxidative conditions is a limiting factor and often leads to fire risk in real applications. Here, Si-modification was performed over a wood-derived AC material, and a series of modified ACs with different Si/C mass ratios (0. Read More

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The thermal regime modifies the response of aquatic keystone species Daphnia to microplastics: Evidence from population fitness, accumulation, histopathological analysis and candidate gene expression.

Sci Total Environ 2021 Aug 17;783:147154. Epub 2021 Apr 17.

Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, Nanjing 210023, China. Electronic address:

The water bodies are greatly influenced by chemical contamination and global increasing temperature. As an emerging pollutant, microplastics are widely distributed in the freshwater environment, raising concerns regarding their potential toxicity to organisms. Especially for zooplankton filter feeders, many of microplastics are in similar size as their food. Read More

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Characteristic and expression of Hsp70 and Hsp90 genes from Tyrophagus putrescentiae and their response to thermal stress.

Sci Rep 2021 Jun 3;11(1):11672. Epub 2021 Jun 3.

School of Life Sciences, Nanchang University, Nanchang, 330031, China.

The development of insects is critically affected by temperature, which therefore plays an important role in the control of stored grain pests. Extreme temperature stress conditions lead to biological responses in mites, such as the synthesis of heat shock proteins. Tyrophagus putrescentiae (Tp) is a pest mite in stored grain that has negative effects on both economy and health. Read More

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Black SnO Based Nanotheranostic for Imaging-Guided Photodynamic/Photothermal Synergistic Therapy in the Second Near-Infrared Window.

Acta Biomater 2021 May 31. Epub 2021 May 31.

State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China. Electronic address:

The shallow penetration depth of photothermal agents in the first near-infrared (NIR-I) window significantly limits their therapeutic efficiency. Multifunctional nanotheranostic agents in the second near-infrared (NIR-II) window have drawn extensive attention for their combined treatment of tumors. Here, for the first time, we created oxygen-deficient black SnO with strong NIR (700-1200 nm) light absorption with NaBH reduction from white SnO. Read More

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The formation mechanism and chirality evolution of chiral carbon dots prepared radical assisted synthesis at room temperature.

Nanoscale 2021 Jun 3. Epub 2021 Jun 3.

Nanomaterials Research Group, Department of Biotechnology and INSTM, RU of Verona, University of Verona, Strada le Grazie 15, Verona, Italy.

We report on a Cu(ii) catalyzed process for the production of cysteine based chiral carbon dots; the process does not require any thermal treatment and the carbon dot formation is driven by the production of reactive radical species that are generated in the reaction media by the catalytic role played by the multivalent transition metal. The nanomaterial presents a well-defined chirality and the enantioselectivity of the synthesis is proved by the isolation of both the carbon dot enantiomers. We focused our attention on the processes that take place during the carbon dot formation and the relationship with the structure of the organic starting material. Read More

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Vulnerability to climate change of a microendemic lizard species from the central Andes.

Sci Rep 2021 Jun 2;11(1):11653. Epub 2021 Jun 2.

Instituto de Investigaciones en Biodiversidad y Medioambiente, Consejo Nacional de Investigaciones Científicas y Técnicas (INIBIOMA-CONICET), Quintral 1250, 8400, San Carlos de Bariloche, Argentina.

Given the rapid loss of biodiversity as consequence of climate change, greater knowledge of ecophysiological and natural history traits are crucial to determine which environmental factors induce stress and drive the decline of threatened species. Liolaemus montanezi (Liolaemidae), a xeric-adapted lizard occurring only in a small geographic range in west-central Argentina, constitutes an excellent model for studies on the threats of climate change on such microendemic species. We describe field data on activity patterns, use of microhabitat, behavioral thermoregulation, and physiology to produce species distribution models (SDMs) based on climate and ecophysiological data. Read More

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Novel methacrylate copolymers functionalized with fluoroarylamide; copolymerization kinetics, thermal stability and antimicrobial properties.

J Biomater Sci Polym Ed 2021 Jun 2:1-18. Epub 2021 Jun 2.

Afyon Kocatepe University, Faculty of Science and Arts, Department of Chemistry, 03200 Afyonkarahisar, Turkey.

In the first step of this study, 2-oxo-2-[(2,4,6-trifluorophenyl)amino]ethyl-2-methylprop-2-enoate(OTFAMA) monomer was synthesized and characterized. Then, a series copolymers were obtained by free-radical copolymerization method of OTFAMA and glycidyl methacrylate (GMA), which is a commercial monomer at 65 °C in 1,4-dioxane solvent. Structural characterizations of synthesized monomer and copolymers were carried out using FTIR, H -C-NMR instruments. Read More

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Phytoplankton community organization and succession by sea warming: A case study in thermal discharge area of the northern coastal seawater of China.

Mar Pollut Bull 2021 May 30;169:112538. Epub 2021 May 30.

Research Center of Harmful Algae and Marine Biology, Jinan University, Guangzhou 510632, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China. Electronic address:

Thermal discharges from power plants elevate temperatures in the surrounding waters, and this warming of the marine environment inevitably influences phytoplankton communities. In this study, we conducted seasonal sampling in coastal waters of the Bohai Sea off Qinhuangdao, China. The results revealed that the coastal waters are notably affected by thermal discharge, with unseasonably-high water temperatures, particularly during winter. Read More

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Benthic estuarine communities' contribution to bioturbation under the experimental effect of marine heatwaves.

Sci Rep 2021 Jun 1;11(1):11422. Epub 2021 Jun 1.

CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Novo Edifício Do Terminal de Cruzeiros Do Porto de Leixões, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal.

Marine heatwaves are increasing worldwide, with several negative impacts on biological communities and ecosystems. This 24-day study tested heatwaves' effect with distinct duration and recovery periods on benthic estuarine communities' diversity and contribution to ecosystem functioning experimentally. The communities were obtained from a temperate estuary, usually subjected to high daily thermal amplitudes. Read More

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Development of a Glucose Sensor Based on Glucose Dehydrogenase Using Polydopamine-Functionalized Nanotubes.

Membranes (Basel) 2021 May 24;11(6). Epub 2021 May 24.

Department of Chemistry, College of Science & Technology, Dankook University, Dandae-ro, Cheonan-si, Chungnam 31116, Korea.

The electrochemical-based detection of glucose is widely used for diagnostic purposes and is mediated by enzyme-mediated signal transduction mechanisms. For such applications, recent attention has focused on utilizing the oxygen-insensitive glucose dehydrogenase (GDH) enzyme in place of the glucose oxidase (GOx) enzyme, which is sensitive to oxygen levels. Currently used Ru-based redox mediators mainly work with GOx, while Ru(dmo-bpy)Cl has been proposed as a promising mediator that works with GDH. Read More

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Silver Doped Magnesium Ferrite Nanoparticles: Physico-Chemical Characterization and Antibacterial Activity.

Materials (Basel) 2021 May 26;14(11). Epub 2021 May 26.

Department of Chemistry, University of Pavia, Viale Taramelli 16, 27100 Pavia, Italy.

Spinel phases, with unique and outstanding physical properties, are attracting a great deal of interest in many fields. In particular, MgFeO, a partially inverted spinel phase, could find applications in medicine thanks to the remarkable antibacterial properties attributed to the generation of reactive oxygen species. In this paper, undoped and Ag-doped MgFeAgO (x = 0. Read More

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