Littérature scientifique sur le sujet « Alkaline nanoparticles »
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Articles de revues sur le sujet "Alkaline nanoparticles"
Dutka, R. M. « Peculiarities of Ag metallic nanoparticles formation in alkaline and alkaline-earth tetraborate glasses ». Functional materials 22, no 2 (30 juin 2015) : 155–61. http://dx.doi.org/10.15407/fm22.02.155.
Texte intégralSánchez M., J. F., H. A. Ritacco et M. D. Sánchez. « FORMATION OF PALLADIUM NANOPARTICLES BY THE POLYOL METHOD:INFLUENCE OF ALKALINE CONDITIONS ». Anales AFA 33, no 4 (15 janvier 2023) : 103–11. http://dx.doi.org/10.31527/analesafa.2022.33.4.103.
Texte intégralSutthavas, Pichaporn, Matthias Schumacher, Kai Zheng, Pamela Habibović, Aldo Roberto Boccaccini et Sabine van Rijt. « Zn-Loaded and Calcium Phosphate-Coated Degradable Silica Nanoparticles Can Effectively Promote Osteogenesis in Human Mesenchymal Stem Cells ». Nanomaterials 12, no 17 (24 août 2022) : 2918. http://dx.doi.org/10.3390/nano12172918.
Texte intégralLee, Jae Hoon, Tae Min Kim, In-Gyu Choi et Joon Weon Choi. « Phenolic Hydroxyl Groups in the Lignin Polymer Affect the Formation of Lignin Nanoparticles ». Nanomaterials 11, no 7 (9 juillet 2021) : 1790. http://dx.doi.org/10.3390/nano11071790.
Texte intégralQiu, Lang, Hengbo Yin, Aili Wang, Lingqin Shen et Wei Tao. « Oxidation of 1,2-Propanediol to Carboxylic Acid Over Hydroxyapatite Nanorod-Supported Metallic Cu0 Nanoparticles ». Journal of Nanoscience and Nanotechnology 20, no 3 (1 mars 2020) : 1723–31. http://dx.doi.org/10.1166/jnn.2020.16985.
Texte intégralAnish, M., Ignatius Raja, K. Rahul, J. Jayaprabakar, Nivin Joy et P. Bency. « The Experimental Investigation of Heat Transfer Properties and Pressure Drop of a Corrugated Plate Heat Exchanger Using a Chemically Synthesised Zinc Oxide/Alkaline Water Nano Fluid ». Journal of Nanofluids 12, no 2 (1 mars 2023) : 405–17. http://dx.doi.org/10.1166/jon.2023.1931.
Texte intégralIkeda, Shoichiro, Akinari Nobumoto, Hideo Ono, Shinji Ono, Shinji Kawasaki et Mohamad Rusop. « Hydrophilic Carbon Nano-Particles ; Preparation and Applications ». Advanced Materials Research 1109 (juin 2015) : 232–37. http://dx.doi.org/10.4028/www.scientific.net/amr.1109.232.
Texte intégralPatil Machindra Balwant et Bhangale Pallavi Ravindra. « Greenery method for Synthesis of some alkali and alkaline earth metallic nanoparticles and its antibacterial screening activity ». World Journal of Advanced Research and Reviews 16, no 3 (30 décembre 2022) : 494–504. http://dx.doi.org/10.30574/wjarr.2022.16.3.1356.
Texte intégralChen, Qiu Ling, Wan Lin, Qiu Ling Chen et Shuang Bao Wang. « Study on the Effect of Fe3O4 Nanoparticle Dopants on the Properties of Magneto Optical Glasses ». Advanced Materials Research 213 (février 2011) : 330–33. http://dx.doi.org/10.4028/www.scientific.net/amr.213.330.
Texte intégralQuinson, Jonathan, Søren Bredmose Simonsen, Luise Theil Kuhn et Matthias Arenz. « Commercial Spirits for Surfactant-Free Syntheses of Electro-Active Platinum Nanoparticles ». Sustainable Chemistry 2, no 1 (4 janvier 2021) : 1–7. http://dx.doi.org/10.3390/suschem2010001.
Texte intégralThèses sur le sujet "Alkaline nanoparticles"
Husar, Richard. « Investigation into the Formation of Nanoparticles of Tetravalent Neptunium in Slightly Alkaline Aqueous Solution ». Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-177381.
Texte intégralFacciotti, Camilla <1990>. « Development of lanthanide doped alkaline-earth fluorides core-shell nanoparticles for nanothermometry and drug delivery applications ». Master's Degree Thesis, Università Ca' Foscari Venezia, 2015. http://hdl.handle.net/10579/6344.
Texte intégralNtwatwa, Ziphozihle. « Formulation and evaluation of the biocompatibility of chitosan-dextran nanoparticles using a blood-brain barrier model ». University of the Western Cape, 2018. http://hdl.handle.net/11394/6431.
Texte intégralCentral nervous system (CNS) infections are a therapeutic challenge. This is partly due to insufficient drug penetration across the blood-brain barrier (BBB). The BBB is a specialized, highly selective, metabolically active physiological barrier that regulates the movement of molecules into-and-out of the brain. As a result, large hydrophilic antibiotics such as colistin poorly penetrate to the CNS. Colistin is an old 'last line of defence'; a gram-negative antibiotic that has seen its clinical re-emergence due to the surge of multidrug resistance (MDR) infections. However, owing to systemic toxicity, increasing the intravenous dosage, in order to obtain higher CNS penetration, is inimical. Chitosan (CS) based nanoparticles (NPs) have been proposed as drug delivery systems across the BBB. CS is a cationic, natural polysaccharide that has the ability to be complexed with multivalent polymers like dextran (DS) thus forming CS-DS NPs. Naturally, CS has remarkable inherent features such as biocompatibility, biodegradability, ability to encapsulate poorly soluble drugs and it is favourable for endothelial cell uptake. However, polymeric NPs (even those derived from natural polysaccharides) have limited use due to toxicity. Considering the vital role of the BBB, toxicity would denote dire effects on CNS functioning. Therefore, treatment of CNS infections fringes on a deeper understanding of the interactions between drug delivery systems and the BBB.
Kusi, Joseph, Phillip R. Scheuerman et Kurt J. Maier. « Antimicrobial Properties of Silver Nanoparticles May Interfere with Fecal Indicator Bacteria Detection in Pathogen Impaired Streams ». Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/etsu-works/7834.
Texte intégralHusar, Richard [Verfasser], Thorsten [Akademischer Betreuer] Stumpf et Alexander [Akademischer Betreuer] Eychmüller. « Investigation into the Formation of Nanoparticles of Tetravalent Neptunium in Slightly Alkaline Aqueous Solution / Richard Husar. Gutachter : Thorsten Stumpf ; Alexander Eychmüller. Betreuer : Thorsten Stumpf ». Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://d-nb.info/1076280099/34.
Texte intégralMonyoncho, Evans Angwenyi. « In-Situ and Computational Studies of Ethanol Electrooxidation Reaction : Rational Catalyst Design Strategies ». Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35940.
Texte intégralFrederice, Rafael. « Fluorescência molecular em nanopartículas de sílica marcadas com quercetina e rodamina B ». Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/75/75131/tde-25082009-163731/.
Texte intégralSilica nanospheres doped with quercetin-Al+3 and rhodamine B were synthesized with high size control and morphology, using acid and basic catalysis of tetraethylorthosilicate (TEOS). The nanoparticle diameter obtained was about 200- 300 nm, with higher regularity when synthesized in alkaline media. The Stöber\'s and core-shell methods were used as preparation methods. Because the alkaline hydrolysis of quercetin, the flavonoid or the quercetin-Al+3 complex doped nanoparticles showed higher emission intensity when acid catalysis was used. When basic catalysis was performed, the particles prepared with an alumina-sol showed expressive emission intensity, but nanometric parallelepipeds were obtained. The quercetin-alumina fluorescence decays are biexponential, agreeing with the two types of quercetin-Al+3 complexes formed in the nanoparticles domain. In the case of rhodamine B, fluorescence correlation spectroscopy (FCS) measurements were performed, showing a relation between diffusion relaxation with size and aggregation behavior.
Nunes, Andreia. « Hybrid mesoporous materials for the oxidative depolymerization of lignin into valuable molecules ». Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1024.
Texte intégralLignin is one of the most abundant natural polymers and the only biomass constituent based on aromatic units and as such represents a promising renewable resource for the sustainable production of complex organic molecules. This dissertation reports on the development of catalytic materials capable of selectively transform lignin into basic functional molecules with high oxygen content and the study of their performance under alkaline oxidative conditions, using hydrogen peroxide as oxygen donner. Different families of hybrid materials based on the SBA-15 scaffold were first synthesized by incorporation of titanium, Au/titanium, Ag/titanium and Fe-TAML and completely characterized. Comparative catalytic studies were then accomplished in order to evaluate their performance in terms of degree of depolymerization and product distribution. The catalyst with the highest potential, the TiO2 based SBA-15 material, was then submitted to further reactivity studies in order to optimize the different reaction parameters (temperature, reaction time and quantity of oxidant). In the presence of an excess of oxidant, conversions up to 90 wt. % were obtained, whereas a temperature of 80 °C allowed to obtain a yield in bio-oil of 50 wt. %, which is mainly composed of carboxylic acids and aromatic molecules with potential to be further valorized
Queiroz, Adriana Coêlho. « Síntese e estudo da atividade eletrocatalítica de óxidos de metais de transição e de nanopartículas de prata e ouro para a reação de redução de oxigênio ». Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/75/75131/tde-25102011-170304/.
Texte intégralThe oxygen reduction reaction (ORR) was studied on electrocatalysts composed by pure and mixed transition metal oxides of Mn, Co, and Ni, including spinel-like structures, and by Ag, Au, and Ag3M/C (M= Au, Pt, Pd e Cu) bimetallic nanoparticles, in alkaline electrolyte. The transition metal oxides were synthesized by thermal decomposition of their nitrates, and the silver and gold-based nanoparticles by chemical reduction using borohydride. The electrocatalysts were characterized by X-Ray Diffraction and X-Ray Absorption Spectroscopy (in the case of the metal oxides). The manganese-based oxide materials showed high activity for the ORR, in which the in situ spectroscopic results evidenced the Mn(IV) to Mn(III) reduction, in the range of the ORR onset. In this case, the electrocatalytic activities were correlated to the transfer of electron from Mn(III) to O2. However, they presented strong deactivation after several potentiodynamic cycles, which was ascribed to the formation of the electrochemically inactive phase of Mn3O4, as indicated by the XRD results, after the electrochemical experiments. On the other hand, the MnCo2O4 spinel-like material showed high activity and stability for the ORR. Its high electocatalytic activity was attributed to the CoII/CoIII redox pair, taking place at higher potentials, in relation to that of the CoOx e MnOx pure phases, due to the Co and Mn interactions in the spinel lattice. Contrarily to the behavior observed for the manganese-based materials, the spinel oxide presented high stability, which was ascribed to the non alteration of its crystallographic structure in the range of potentials tha the ORR takes place. For the Au and Ag-based materials, the electrochemical experiments indicated higher electrocatalytic activities for Ag3Au/C. In this case, its higher activity as associated to two main aspects: (i) to a synergetic effect, in which the gold atoms act in the activation region, facilitating the hydrogen addition, and the neighboring Ag atoms promoting the O-O bond breaking, leading the ORR to the 4-electrons pathway; (ii) to the increased Ag-O bond strength, due to the electronic interaction between Ag and the Au atoms, resulting in a faster O-O bond breaking, enhancing the electrocatalytic activity of the Ag atoms in the Ag3Au/C nanoparticle, in relation to that on the pure Ag. Therefore, the ORR presented lower overpotential and higher number of electrons in the Ag3Au/C electrocatalyst, when compared to the other investigated bimetallic nanoparticles.
Brazeau, Nicolas. « Palladium-Based Catalysts for Ethanol Electrooxidation in Alkaline Media ». Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32201.
Texte intégralChapitres de livres sur le sujet "Alkaline nanoparticles"
Baglioni, Piero, David Chelazzi, Rodorico Giorgi, Huiping Xing et Giovanna Poggi. « Alkaline Nanoparticles for the Deacidification and pH Control of Books and Manuscripts ». Dans Nanoscience and Cultural Heritage, 253–81. Paris : Atlantis Press, 2016. http://dx.doi.org/10.2991/978-94-6239-198-7_9.
Texte intégralNguyen, Tan No, Huu Quoc Phong Le et Anh Tuan Le. « Activation of Nanoparticle and Alkaline Environment on Fly Ash Geopolymer Mortar ». Dans Lecture Notes in Civil Engineering, 361–70. Singapore : Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3303-5_29.
Texte intégralPoggi, Giovanna, Nicole Bonelli, Rodorico Giorgi et Piero Baglioni. « La chimica dei nanocomposti e la loro applicazione al restauro dei manoscritti ». Dans Dalla tutela al restauro del patrimonio librario e archivistico. Venice : Edizioni Ca' Foscari, 2018. http://dx.doi.org/10.30687/978-88-6969-215-4/022.
Texte intégralWu, Chengfan, Rui Zhang, Wei Du, Liang Cheng et Gaolin Liang. « Alkaline phosphatase-triggered self-assembly of near-infrared nanoparticles for the enhanced photoacoustic imaging of tumors ». Dans Methods in Enzymology, 111–44. Elsevier, 2021. http://dx.doi.org/10.1016/bs.mie.2021.06.028.
Texte intégralJolivet, Jean-Pierre. « Conclusion ». Dans Metal Oxide Nanostructures Chemistry. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190928117.003.0012.
Texte intégralWong, Kin, et Vitaly V. Kresin. « PHOTOIONIZATION OF ALKALI NANOPARTICLES AND CLUSTERS ». Dans Latest Advances in Atomic Cluster Collisions, 223–32. PUBLISHED BY IMPERIAL COLLEGE PRESS AND DISTRIBUTED BY WORLD SCIENTIFIC PUBLISHING CO., 2004. http://dx.doi.org/10.1142/9781860946806_0020.
Texte intégralLambert, Richard. « Electrochemical and Chemical Promotion by Alkalis with Metal Films and Nanoparticles ». Dans Catalysis and Electrocatalysis at Nanoparticle Surfaces. CRC Press, 2003. http://dx.doi.org/10.1201/9780203912713.pt5.
Texte intégralWang, S., L. Jiang, Y. Li et D. Li. « Immobilization of alkali protease with magnetic nanoparticles modified by amino-silane ». Dans Frontiers of Energy and Environmental Engineering, 565–68. CRC Press, 2012. http://dx.doi.org/10.1201/b13718-132.
Texte intégralAguado, Andrés, et José M. López. « Chapter 3 Computer simulation of the solid-liquid phase transition in alkali metal nanoparticles ». Dans Nanomaterials : Design and Simulation, 59–83. Elsevier, 2007. http://dx.doi.org/10.1016/s1380-7323(06)80005-1.
Texte intégralde Ménorval, L. C., et F. Rachdi. « Formation of alkali nanoparticles in NaY zeolite cages and in AlPO4-5 molecular sieves : NMR studies ». Dans Studies in Surface Science and Catalysis, 2019–26. Elsevier, 1997. http://dx.doi.org/10.1016/s0167-2991(97)80668-4.
Texte intégralActes de conférences sur le sujet "Alkaline nanoparticles"
Jung, Seunghwan, et Debjyoti Banerjee. « A Simple Analytical Model for Specific Heat of Nanofluid With Tube Shaped and Disc Shaped Nanoparticles ». Dans ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44372.
Texte intégralMcLellan, Claire A., Chris P. Siefe, Stefan Fischer, Jason R. Casar, Dayne F. Swearer, Miriam B. Goodman et Jennifer A. Dionne. « Alkaline-earth Rare-earth Upconverting Nanoparticles as Bio-compatible Mechanical Force Sensors ». Dans CLEO : Science and Innovations. Washington, D.C. : OSA, 2020. http://dx.doi.org/10.1364/cleo_si.2020.sth3m.5.
Texte intégralSen, Debasis, Avik Das et Jitendra Bahadur. « Dissolution of amorphous SiO2 nanoparticles at high alkaline pH : Real time SAXS investigation ». Dans DAE SOLID STATE PHYSICS SYMPOSIUM 2018. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5112874.
Texte intégralSamba, Mohammed A., Hafsa A. Hassan, Mahjouba S. Munayr, Moataz Yusef, Abdelkareem Eschweido, Hamed Burkan et Mahmoud O. Elsharafi. « Nanoparticles EOR Aluminum Oxide (Al2O3) Used As a Spontaneous Imbibition Test for Sandstone Core ». Dans ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10283.
Texte intégral« Synthesis of Graphene Supported Nickel and Cobalt Nanoparticles and Their Applications for Methanol Oxidation in Alkaline Medium ». Dans May 22-24, 2017 Kuala Lumpur (Malaysia). IIE, 2017. http://dx.doi.org/10.15242/iie.e0517019.
Texte intégralPatlolla, Anita K., et Paul B. Tchounwou. « Abstract 5463 : Serum aminotransferases and alkaline phosphatases as biomarkers of hepatotoxicity in sprague-dawley rats exposed to silver nanoparticles ». Dans Proceedings : AACR 103rd Annual Meeting 2012‐‐ Mar 31‐Apr 4, 2012 ; Chicago, IL. American Association for Cancer Research, 2012. http://dx.doi.org/10.1158/1538-7445.am2012-5463.
Texte intégralAssef, Y., P. Pourafshary et H. Hejazi. « Controlling Interactions of Colloidal Particles and Porous Media During Low Salinity Water Flooding and Alkaline Flooding By MgO Nanoparticles ». Dans SPE EOR Conference at Oil and Gas West Asia. Society of Petroleum Engineers, 2016. http://dx.doi.org/10.2118/179768-ms.
Texte intégralRizvi, Syed Muhammad Mujtaba, Yousof Nayfeh, Baha El Far et Donghyun Shin. « Use of Silica Coated Zinc Nanoparticles for Enhancement in Thermal Properties of Carbonate Eutectic Salt for Concentrated Solar Power Plants ». Dans ASME 2020 14th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/es2020-1710.
Texte intégralRadt, Benno, Jesper Serbin, Björn I. Lange, Reginald Birngruber et Gereon Hüttmann. « Laser generated micro- and nanoeffects : inactivation of proteins coupled to gold nanoparticles with nano- and picosecond pulses ». Dans European Conference on Biomedical Optics. Washington, D.C. : Optica Publishing Group, 2001. http://dx.doi.org/10.1364/ecbo.2001.4433_16.
Texte intégralYang, Hongjoo, et Debjyoti Banerjee. « Study of Specific Heat Capacity Enhancement of Molten Salt Nanomaterials for Solar Thermal Energy Storage (TES) ». Dans ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/mnhmt2012-75338.
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