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Artículos de revistas sobre el tema "Physicochemical characterisations"

Autor: Grafiati

Publicado: 21 de diciembre de 2024

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1

Evangelista, Tereza Cristina Santos, Giordano Toscano Paganoto, Marco Cesar Cunegundes Guimarães y Josimar Ribeiro. "Raman Spectroscopy and Electrochemical Investigations of Pt Electrocatalyst Supported on Carbon Prepared through Plasma Pyrolysis of Natural Gas". Journal of Spectroscopy 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/329730.

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Physicochemical and electrochemical characterisations of Pt-based electrocatalysts supported on carbon (Vulcan carbon, C1, and carbon produced by plasma pyrolysis of natural gas, C2) toward ethanol electrooxidation were investigated. The Pt20/C180and Pt20/C280electrocatalysts were prepared by thermal decomposition of polymeric precursors at 350°C. The electrochemical and physicochemical characterisations of the electrocatalysts were performed by means of X-ray diffraction (XRD), transmission electron microscope (TEM), Raman scattering, cyclic voltammetry, and chronoamperometry tests. The XRD results show that the Pt-based electrocatalysts present platinum metallic which is face-centered cubic structure. The results indicate that the Pt20/C180electrocatalyst has a smaller particle size (10.1–6.9 nm) compared with the Pt20/C280electrocatalyst; however, the Pt20/C280particle sizes are similar (12.8–10.4 nm) and almost independent of the reflection planes, which suggests that the Pt crystallites grow with a radial shape. Raman results reveal that both Vulcan carbon and plasma carbon are graphite-like materials consisting mostly of sp2carbon. Cyclic voltammetry and chronoamperometry data obtained in this study indicate that the deposition of Pt on plasma carbon increases its electrocatalytic activity toward ethanol oxidation reaction.

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Tokárová, Zita y Anna Biathová. "Synthesis and structure-physicochemical properties relationship of thiophene-substituted bis(5,4-d)thiazoles". Nova Biotechnologica et Chimica 17, n.º 2 (1 de diciembre de 2018): 193–200. http://dx.doi.org/10.2478/nbec-2018-0020.

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Abstract Substituted thiophene-2-carbaldehydes 1a-dwere utilized in the synthesis of symmetrically substituted thiazolo[5,4-d]thiazoles 3a-d. Bis(5,4-d)thiazoles with thiophene core at the termini are the most employed in the chemistry of materials but exhibit insufficient solubility in majority of organic solvents with notable impact on the low yields of products. Accordingly, the synthetic approach towards 2,5-dithiophen- 2-yl-thiazolo[5,4-d]thiazole (3a) and its substituted derivatives 3b-d is discussed under the various reaction conditions. Appropriate structural characterisations are included with emphasis on relationship between structure and physicochemical properties highlighting the UV-Vis and fluorescence.

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Alemu, Negese, Subramanian Balakrishnan y Baru Debtera. "Extraction and Characterisation of Avocado Seed Starch, and Its Blend with Enset Cellulosic". Advances in Materials Science and Engineering 2022 (22 de octubre de 2022): 1–10. http://dx.doi.org/10.1155/2022/9908295.

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Avocado seed starch was extracted to prepare a biodegradable plastic film with enset cellulosic reinforcement and glycerol plasticiser. The characterisations were made in detail. Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimeter (DSC), scanning electron microscopy (SEM), X-ray diffraction (XRD), rheometer, and Rapid Visco Analyser (RVA) techniques were employed to characterise the physicochemical properties of avocado seed starch, enset cellulosic, and the blend. Starch and enset cellulosic extraction yields are 18.3 ± 0.02% and 67.5 ± 0.08%, respectively. As a result, avocado seed starch and enset cellulosic blend can be used as alternative raw materials to develop biodegradable plastics.

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Boulangé, Laurence, Estelle Bonin y Michel Saubot. "Physicochemical characterisations of the bitumen–aggregate interface to get a better understanding of stripping phenomena". Road Materials and Pavement Design 14, n.º 2 (junio de 2013): 384–403. http://dx.doi.org/10.1080/14680629.2013.803494.

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De, Arnab, Bhaskar Das, Debmalya Mitra, Asish K. Sen y Amalesh Samanta. "Exploration of an arabinogalactan isolated from Odina wodier Roxb.: Physicochemical, compositional characterisations and functional attributes". Polymers for Advanced Technologies 31, n.º 8 (25 de marzo de 2020): 1814–26. http://dx.doi.org/10.1002/pat.4908.

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Jaffar, Syafiqah Syazwani, Suryani Saallah, Mailin Misson, Shafiquzzaman Siddiquee, Jumardi Roslan y Wuled Lenggoro. "Green Synthesis of Flower-Like Carrageenan-Silver Nanoparticles and Elucidation of Its Physicochemical and Antibacterial Properties". Molecules 28, n.º 2 (16 de enero de 2023): 907. http://dx.doi.org/10.3390/molecules28020907.

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Herein, we report the green synthesis of flower-like carrageenan-silver nanoparticles (c-AgNPs) through a facile hydrothermal reaction at 90 °C for 2 h. The reduction of silver nitrate (AgNO3) to c-AgNPs was evident by the colour change of the solution from colourless to dark brown and further confirmed by a UV-Vis surface plasmon resonance (SPR) peak at ~420 nm. The FTIR spectra showed that the abundance of functional groups present in the carrageenan were responsible for the reduction and stabilisation of the c-AgNPs. The XRD pattern confirmed the crystalline nature and face-centred cubic structure of the c-AgNPs, while the EDX analysis showed the presence of a high composition of elemental silver (85.87 wt%). Interestingly, the morphological characterisations by SEM and FE-SEM revealed the formation of flower-like c-AgNPs composed of intercrossed and random lamellar petals of approximately 50 nm in thickness. The growth mechanism of flower-like c-AgNPs were elucidated based on the TEM and AFM analyses. The c-AgNPs displayed promising antibacterial properties against E. coli and S. aureus, with zones of inhibition ranging from 8.0 ± 0.0 to 11.7 ± 0.6 mm and 7.3 ± 0.6 to 9.7 ± 0.6 mm, respectively, as the concentration of c-AgNPs increased from 0.1 to 4 mg/mL.

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Bai, Dorottya, Zsuzsanna Schelz, Dóra Erdős, Anna K. Kis, Viktória Nagy, István Zupkó, György T. Balogh y Zsolt Szakonyi. "Stereoselective Synthesis and Antiproliferative Activities of Tetrafunctional Diterpene Steviol Derivatives". International Journal of Molecular Sciences 24, n.º 2 (6 de enero de 2023): 1121. http://dx.doi.org/10.3390/ijms24021121.

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A new family of diterpene-type aminotriol derivatives has been synthesised from stevioside in a stereoselective manner. The key intermediate spiro-epoxide was prepared through the methyl ester of the allilyc diol derived from steviol. The oxirane ring was opened with primary and secondary amines, providing a versatile library of aminotriols. The corresponding primary aminotriol was formed by palladium-catalysed hydrogenation, and an N,O-heterocyclic compound was synthesised in a regioselective reaction. All new compounds were characterised by 1D- and 2D-NMR techniques and HRMS measurements. In our in vitro investigations, we found that the aromatic N-substituted derivatives exhibited high inhibition of cell growth on human cancer cell lines (HeLa, SiHa, A2780, MCF-7 and MDA-MB-231). The antiproliferative activities were assayed by the MTT method. Furthermore, the introduction of an additional hydroxy group slightly increased the biological activity. The drug-likeness of the compounds was assessed by in silico and experimental physicochemical characterisations, completed by kinetic aqueous solubility and in vitro intestinal-specific parallel artificial membrane permeability assay (PAMPA-GI) measurements.

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Ting, Chao Wen, Naji Arafat Mahat, Aida Rasyidah Azman, Nor Wajihan Muda y Nurazira Anuar. "Performance of the Nanobio-Based Reagent for Visualising Wet Fingerprints Exposed to Different Levels of Water Salinity". Journal of Clinical and Health Sciences 6, n.º 1(Special) (30 de junio de 2021): 32. http://dx.doi.org/10.24191/jchs.v6i1(special).13169.

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Introduction: Recovery of evidence such as murder weapons in waterways has been commonly reported. However, visualising latent fingerprints on the immersed substrates may prove challenging due to its obliteration by physicochemical parameters (e.g. pH, temperature, salinity) as well as the mechanical effect of water. Although the use of Small Particle Reagent (SPR) for visualising latent fingerprints on wet non-porous substrates has been suggested, it contains molybdenum and titanium that are toxic, and their utilisation must be reduced. Furthermore, no study verifies the chemical and/or physical interaction between SPR and the lipid constituents of wet latent fingerprints that leads to the visualisation of ridge details. Methods: The SPR and newly developed nanobio based reagent (NBR) i.e. Candida rugosa lipase-multiwalled carbon nanotubes (CRL-MWCNTs) were used for visualising latent fingerprints on glass slides immersed in water with salinitylevels representing those of estuary and swimming pool for up to 15 days. Results: It was observed that the quality of the visualised fingerprints using NBR was comparable with that of SPR. Characterisations via instrument and bioinformatics analyses have also verified the incorporation of CRL onto MWCNTs and the chemical interaction between NBR and lipid constituents of wet latent fingerprints. Conclusions: Therefore, the newly developed NBR may prove a promising relatively greener alternative for substituting SPR for visualising latent fingerprints on glass slides immersed in different levels of water salinity.

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Asma, Remil, Taghouti Mona, Benali Mohammed y Belbraouet Slimane. "Physicochemical Analysis, Electrophoretic Characterization and Verifica-tion of the Protein Fractions Responsible for Celiac Disease of Wheat Varieties Imported and Grown in Western Algeria". South Asian Journal of Experimental Biology 7, n.º 3 (8 de marzo de 2018): 113–21. http://dx.doi.org/10.38150/sajeb.7(3).p113-121.

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Celiac disease is an inflammatory enteropathy induced by ingestion of wheat proteins. This study aims to verify the protein quality of wheat varieties that are either grown in or imported into Western Algeria, by carrying out physi-cochemical and electrophoretic characterisations of the gluten proteins. We carry out physicochemical analysis of thirty-four samples of durum and bread wheat, with regard to gluten proteins. The quality of gluten was ap-preciated by Zeleny volume of bread wheat and the SDS sedimentation test for durum wheat. Meanwhile, we also characterized glutenins and gliadins into thirteen cereal varieties by monodimensional electrophoresis on SDS-PAGE and Acid-PAGE respectively. The results showed that gluten levels ranges varied from 26.82±3.99% to 56.1±1.43%. The values of the total pro-tein content had the range of 11.35±0.42% to 20.57±0.98%. The varieties studied had Zeleny values between 7.79±1.45 mL to 40.07±2.96 mL for bread wheat, and the SDS sedimentation volume ranged from 24.5±0.70 mL to 51.25±2.47 mL for durum varieties. The analysis of the glutenin and gliadin composition of the wheat varieties by electrophoresis showed the existence of α- and ω-gliadins subunits, responsible for celiac disease. Furthermore, the results revealed the presence of gliadin subunits "γ-45" and glutenins "GS-LMW Type2" related to the good quality of gluten in some varieties of wheat. As a result, we can conclude that the wheat consumed in Western Algeria has a good quality of storage proteins. Therefore, it is far from being responsible for the decrease of celiac disease in this region.

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Hamman, Naasika, Poornima Ramburrun y Admire Dube. "Selenium Nanoparticle Activity against S. mutans Biofilms as a Potential Treatment Alternative for Periodontitis". Pharmaceutics 16, n.º 4 (25 de marzo de 2024): 450. http://dx.doi.org/10.3390/pharmaceutics16040450.

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The disruption of periodontal biofilms and prevailing antimicrobial resistance issues continue to pose a great challenge to the treatment of periodontitis. Here, we report on selenium nanoparticles (SeNPs) as a treatment alternative for periodontitis by determining their antibiofilm activity against S. mutans biofilms and the potential role of particle size in disrupting biofilms. SeNPs were synthesised via a reduction reaction. Various physicochemical characterisations were conducted on the NPs, including size and shape. The microbroth dilution method was used to conduct the biofilm and antibiofilm assay against S. mutans, which was analysed by absorbance. SeNPs displayed hydrodynamic sizes as low as 46 ± 4 nm at a volume ratio of 1:5 (sodium selenite/ascorbic acid) with good monodispersity and stability. Hydrodynamic sizes of SeNPs after resuspension in tryptic soy broth supplemented with 2.5% sucrose (TSB + 2.5% suc.) and incubated at 37 °C for 24 h, ranged from 112 to 263 nm, while the zeta potential values increased to greater than −11 mV. The biofilm assay indicated that S. mutans are weakly adherent, bordering on moderately adherent biofilm producers. The minimum biofilm inhibitory concentration (MBIC) was identified at 500 µg/mL. At a 1000 µg/mL concentration, SeNPs were able to inhibit S. mutan biofilms up to 99.87 ± 2.41% at a volume ratio of 1:1. No correlation was found between antibiofilm activity and particle size; however, antibiofilm activity was proven to be concentration-dependant. SeNPs demonstrate antibiofilm activity and may be useful for further development in treating periodontitis.

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11

Ramel, M. y M. Nomine. "Physicochemical characterisation of odours". Analusis 28, n.º 3 (abril de 2000): 171–79. http://dx.doi.org/10.1051/analusis:2000280171.

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12

Kumar, Kavita, Tristan Asset, Plamen Atanassov, Frederic Jaouen, Laetitia Dubau y Frederic Maillard. "Unravelling the Influence of Oxygen on the Degradation Mechanisms of Fe-N-C Oxygen Reduction Reaction Catalysts". ECS Meeting Abstracts MA2022-01, n.º 49 (7 de julio de 2022): 2070. http://dx.doi.org/10.1149/ma2022-01492070mtgabs.

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Pyrolyzed iron-nitrogen-carbon materials (Fe-N-C) comprising mostly atomic Fe-Nx moieties are the most mature class of noble metal free catalysts for the oxygen reduction reaction (ORR) in acidic media. Such catalysts show excellent performance in proton exchange membrane fuel cell (PEMFC), approaching that of platinum-based catalysts. [1] However, an important performance loss is observed during operation, in conditions mimicking those of a PEMFC. [2] To shed fundamental light onto the degradation mechanisms at stake, two different Fe-N-C materials were prepared, one using a metal organic framework (MOF) and the other a sacrificial support method (SSM), and are labelled Fe-N-C_MOF and Fe-N-C_SSM, respectively. These materials were characterized before and after two different accelerated stress tests (ASTs: 10 k cycles, 0.6-1.0 V vs. RHE, 3s-3s, 0.1 M H2SO4, 80°C) under Ar or O2 atmosphere. Stronger degradation and higher ORR mass activity loss were observed when the AST is performed in O2 vs. Ar-saturated acidic electrolyte. For AST under Ar condition, physicochemical characterisations revealed a demetallation process and the eventual occurrence of a clustering mechanism whereas for AST performed in O2 atmosphere, a decrease of the Fe content and the formation of Fe oxide particles was observed (Figure 1). Keywords: Electrocatalysis, Fe-N-C, Oxygen Reduction Reaction, Durability, PEMFC Acknowledgements These studies were financed by the French National Research Agency in the frame of the CAT2CAT (grant number n°ANR-16-CE05-0007) and the ANIMA (grant number n°ANR-19-CE05-0039) projects. References [1] E. Proietti, F. Jaouen, M. Lefèvre, N. Larouche, J. Tian, J. Herranz, J. P. Dodelet, Nat. Commun. 2011, 2, 416. [2] Y. Shao, J. P. Dodelet, G. Wu, P. Zelenay, Adv. Mater. 2019, 21, 1807615. [3] K. Kumar, T. Asset, X. Li, Y. Liu, X. Yan, Y. Chen, M. Mermoux, X. Pan, P. Atanassov, F. Maillard, L. Dubau, ACS Catal. 2021, 11, 484-494. [4] K. Kumar, P. Gairola, M. Lions, N. Ranjbar-Sahraie, M. Mermoux, L. Dubau, A. Zitolo, F. Jaouen, F. Maillard, ACS Catal. 2018, 8, 11264-11276. [5] K. Kumar, L. Dubau, M. Mermoux, J. Li, A. Zitolo, J. Nelayah, F. Jaouen, F. Maillard, Angew. Chem. 2020, 132, 3261-3269. Figure 1

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13

Tirkkonen, Birgit, A. Aukrust, E. Couture, D. Grace, Y. Haile, K. M. Holm, H. Hope, å. Larsen, H. Sivertsen Lunde y C. E. Sjøgren. "Physicochemical characterisation of mangafodipir trisodium". Acta Radiologica 38, n.º 5 (1997): 780–89. http://dx.doi.org/10.3109/02841859709172411.

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Tirkkonen, B., A. Aukrust, E. Couture, D. Grace, Y. Haile, K. M. Holm, H. Hope, Å. Larsen, H. Sivertsen Lunde y C. E. Sjøgren. "Physicochemical characterisation of mangafodipir trisodium". Acta Radiologica 38, n.º 5 (septiembre de 1997): 780–89. http://dx.doi.org/10.1080/02841859709172411.

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Purpose: To determine the structure and various physicochemical properties of man-gafodipir (MnDPDP) trisodium, the active ingredient of Teslascan, a new organ-specific contrast medium for MR imaging. Material and Methods: The structure of MnDPDP trisodium crystals was determined by X-ray crystallography. The possible existence of polymorphism in MnDPDP trisodium was evaluated by powder X-ray diffraction, optical microscopy, thermal analysis and IR spectroscopy. In addition, various spectroscopic techniques and physicochemical measurements were used for characterisation of MnDPDP trisodium. Results: The crystallographic data obtained for MnDPDP trisodium show that the general core structure of the MnDPDP anion is similar to that seen in related substances. The metal coordination geometry is a distorted octahedron defined by 2 phenolate oxygens, 2 carboxylate oxygens and 2 amine nitrogens. The unit cell contains 2 MnDPDP anions, 6 sodium ions and 50 water molecules. The various spectroscopic data are consistent with the structure determined by X-ray crystallography. The product (Teslascan) has low viscosity, is isotonic with blood and has a physiological pH. Conclusion: MnDPDP trisodium is a crystalline, hygroscopic solid which is readily soluble in water. No evidence of polymorphism was seen in the samples studied.

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Ibrahim, Raimie H. H., Leilani I. Darvell, Jenny M. Jones y Alan Williams. "Physicochemical characterisation of torrefied biomass". Journal of Analytical and Applied Pyrolysis 103 (septiembre de 2013): 21–30. http://dx.doi.org/10.1016/j.jaap.2012.10.004.

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Balogh, György T. "Physicochemical characterisation in drug discovery". Drug Discovery Today: Technologies 27 (julio de 2018): 1–2. http://dx.doi.org/10.1016/j.ddtec.2018.07.003.

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Bosworth, Lucy A. y Sandra Downes. "Physicochemical characterisation of degrading polycaprolactone scaffolds". Polymer Degradation and Stability 95, n.º 12 (diciembre de 2010): 2269–76. http://dx.doi.org/10.1016/j.polymdegradstab.2010.09.007.

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18

Berlinger, B., N. Benker, S. Weinbruch, B. L`Vov, M. Ebert, W. Koch, D. G. Ellingsen y Y. Thomassen. "Physicochemical characterisation of different welding aerosols". Analytical and Bioanalytical Chemistry 399, n.º 5 (16 de septiembre de 2010): 1773–80. http://dx.doi.org/10.1007/s00216-010-4185-7.

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Skláršová, B., P. Šimko, P. Šimon y E. Belajová. "Characterisation of physicochemical interactions between benzo(a)pyrene contained in vegetable oil and polyethylene terephtalate". Czech Journal of Food Sciences 22, SI - Chem. Reactions in Foods V (1 de enero de 2004): S276—S279. http://dx.doi.org/10.17221/10680-cjfs.

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Rapeseed oil was spiked with benzo(a)pyrene [BaP] solution at the level of 29.4 μg/kg, filled into polyethylene terephtalate [PET] cylindrical shape receptacles and the BaP concentrations were followed for during 97 h by HPLC. During this time, the BaP concentrations decreased to 22.9 μg/kg due to an interaction of BaP with PET. Using a modified kinetic equation, the diffusion coefficient for BaP in the oil was determined. Calculation of the area occupied by a BaP molecule on PET surface suggests that either the multilayer adsorption or the diffusion of BaP into PET bulk came into account as the decisive factors bringing about the decrease of BaP concentrations in the oil.

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Tóth, Gergő, Ádám Jánoska, Zoltán-István Szabó, Gergely Völgyi, Gábor Orgován, Lajos Szente y Béla Noszál. "Physicochemical characterisation and cyclodextrin complexation of erlotinib". Supramolecular Chemistry 28, n.º 7-8 (15 de diciembre de 2015): 656–64. http://dx.doi.org/10.1080/10610278.2015.1117083.

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Pettitt, Michala E. y Jamie R. Lead. "Minimum physicochemical characterisation requirements for nanomaterial regulation". Environment International 52 (febrero de 2013): 41–50. http://dx.doi.org/10.1016/j.envint.2012.11.009.

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Gomand, S. V., T. Verwimp, H. Goesaert y J. A. Delcour. "Structural and physicochemical characterisation of rye starch". Carbohydrate Research 346, n.º 17 (diciembre de 2011): 2727–35. http://dx.doi.org/10.1016/j.carres.2011.09.024.

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Bahgat, M., M. H. Khedr, M. Radwan y M. K. Shaaban. "Physicochemical characterisation of nanosized V/Fe2O3reaction products". Mineral Processing and Extractive Metallurgy 116, n.º 4 (diciembre de 2007): 217–20. http://dx.doi.org/10.1179/174328507x198708.

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Uthurry, Carlos Aníbal, María José Susca, Josefina Magdalena Fontanini, Juan Alejandro Gresia, Cristian Andrés Bezic, Ana María Caponi y María Luisa Franchi. "Physicochemical and sensorial characterisation of Argentine ciders". Journal of the Institute of Brewing 125, n.º 4 (2019): 433–42. http://dx.doi.org/10.1002/jib.575.

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Foster, Christopher W., Dale A. C. Brownson, Ana P. Ruas de Souza, Elena Bernalte, Jesus Iniesta, Mauro Bertotti y Craig E. Banks. "Pencil it in: pencil drawn electrochemical sensing platforms". Analyst 141, n.º 13 (2016): 4055–64. http://dx.doi.org/10.1039/c6an00402d.

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Inspired by recent reports concerning the utilisation of hand drawn pencil macroelectrodes (PDEs), we report the fabrication, characterisation (physicochemical and electrochemical) and implementation (electrochemical sensing) of various PDEs drawn upon a flexible polyester substrate.

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Brown, Stuart J., Calum J. Drummond, Jessica Marchand, Sebastian M. Marcuccio, Kieran P. Stockton y Tamar L. Greaves. "Physicochemical characterisation of novel tetrabutylammonium aryltrifluoroborate ionic liquids". Physical Chemistry Chemical Physics 22, n.º 40 (2020): 23374–84. http://dx.doi.org/10.1039/d0cp03994b.

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Carillo, Petronia, Domenico Cacace, Maria de Rosa, Ermanno De Martino, Concettina Cozzolino, Francesco Nacca, Rosaria D’Antonio y Amodio Fuggi. "Process optimisation and physicochemical characterisation of potato powder". International Journal of Food Science & Technology 44, n.º 1 (enero de 2009): 145–51. http://dx.doi.org/10.1111/j.1365-2621.2007.01696.x.

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Chen, Yangyang, Defeng Li, Wanyi Chen y Juan Zhang. "Preparation and physicochemical characterisation of resveratrol-ovalbumin microparticles". International Journal of Food Science & Technology 50, n.º 10 (15 de julio de 2015): 2201–7. http://dx.doi.org/10.1111/ijfs.12883.

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Zellmer, Sebastian, Ina Zimmermann, Carsten Selle, Brigitte Sternberg, Walter Pohle y Jürgen Lasch. "Physicochemical characterisation of human stratum corneum lipid liposomes". Chemistry and Physics of Lipids 94, n.º 1 (julio de 1998): 97–108. http://dx.doi.org/10.1016/s0009-3084(98)00046-2.

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Tham, Tammie Wei Yi, Andrew Ti Heong Yeoh y Weibiao Zhou. "Characterisation of aged infant formulas and physicochemical changes". Food Chemistry 219 (marzo de 2017): 117–25. http://dx.doi.org/10.1016/j.foodchem.2016.09.107.

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Mende, Susann, Tingting Dong, Anne Rathemacher, Harald Rohm y Doris Jaros. "Physicochemical characterisation of the exopolysaccharides ofStreptococcus thermophilusST-143". International Journal of Food Science & Technology 49, n.º 5 (26 de febrero de 2014): 1254–63. http://dx.doi.org/10.1111/ijfs.12505.

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M’hamdi, A. Ismaili, N. Idrissi Kandri, A. Zerouale, D. Blumberga y J. Gusca. "Treatment and Physicochemical Characterisation of Red Wood Sawdust". Energy Procedia 95 (septiembre de 2016): 546–50. http://dx.doi.org/10.1016/j.egypro.2016.09.083.

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Dash, Kalpana, Kunal Saha, Arvind Sahu y S. V. Gangal. "Natural serum haemagglutinins (lectins) in fish: Physicochemical characterisation". Fish & Shellfish Immunology 3, n.º 5 (septiembre de 1993): 345–60. http://dx.doi.org/10.1006/fsim.1993.1034.

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Müller, Markus, Stefan Mackeben y Christel C. Müller-Goymann. "Physicochemical characterisation of liposomes with encapsulated local anaesthetics". International Journal of Pharmaceutics 274, n.º 1-2 (abril de 2004): 139–48. http://dx.doi.org/10.1016/j.ijpharm.2004.01.015.

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Manuel Martínez-Rubio, Pablo, María Dolores Avilés, Joaquín Arias-Pardilla, Francisco José Carrión-Vilches, José Sanes, María Dolores Bermúdez y Ramón Pamies. "Physicochemical characterisation of graphene-ammonium lactate ionic liquid nanofluid". Journal of Molecular Liquids 367 (diciembre de 2022): 120446. http://dx.doi.org/10.1016/j.molliq.2022.120446.

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Aktar, Tugba. "Physicochemical and sensory characterisation of different yoghurt production methods". International Dairy Journal 125 (febrero de 2022): 105245. http://dx.doi.org/10.1016/j.idairyj.2021.105245.

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37

Besq, A., C. Malfoy, A. Pantet, P. Monnet y D. Righi. "Physicochemical characterisation and flow properties of some bentonite muds". Applied Clay Science 23, n.º 5-6 (octubre de 2003): 275–86. http://dx.doi.org/10.1016/s0169-1317(03)00127-3.

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38

Terrab, Anass, Maria J. Dı́ez y Francisco J. Heredia. "Characterisation of Moroccan unifloral honeys by their physicochemical characteristics". Food Chemistry 79, n.º 3 (noviembre de 2002): 373–79. http://dx.doi.org/10.1016/s0308-8146(02)00189-9.

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39

Alanazi, F. K., A. A. Abdel Rahman, G. M. Mahrous y I. A. Alsarra. "Formulation and physicochemical characterisation of buccoadhesive films containing ketorolac". Journal of Drug Delivery Science and Technology 17, n.º 3 (2007): 183–92. http://dx.doi.org/10.1016/s1773-2247(07)50034-1.

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40

Nwokocha, Louis M., Peter A. Williams y Madhav P. Yadav. "Physicochemical characterisation of the galactomannan from Delonix regia seed". Food Hydrocolloids 78 (mayo de 2018): 132–39. http://dx.doi.org/10.1016/j.foodhyd.2017.02.016.

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41

Tabor, Rico F., Thomas M. McCoy, Yingxue Hu y Brendan L. Wilkinson. "Physicochemical and Biological Characterisation of Azobenzene-Containing Photoswitchable Surfactants". Bulletin of the Chemical Society of Japan 91, n.º 6 (15 de junio de 2018): 932–39. http://dx.doi.org/10.1246/bcsj.20180024.

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42

Abodinar, Atiga, Kristoffer Tømmeraas, Elena Ronander, Alan M. Smith y Gordon A. Morris. "The physicochemical characterisation of pepsin degraded pig gastric mucin". International Journal of Biological Macromolecules 87 (junio de 2016): 281–86. http://dx.doi.org/10.1016/j.ijbiomac.2016.02.062.

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43

Abdelaziz, Omar Y. y Christian P. Hulteberg. "Physicochemical Characterisation of Technical Lignins for Their Potential Valorisation". Waste and Biomass Valorization 8, n.º 3 (1 de agosto de 2016): 859–69. http://dx.doi.org/10.1007/s12649-016-9643-9.

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44

Larsen, Simon R., Leander Michels, Éverton C. dos Santos, Marcella C. Berg, Will P. Gates, Laurie P. Aldridge, Tilo Seydel et al. "Physicochemical characterisation of fluorohectorite: Water dynamics and nanocarrier properties". Microporous and Mesoporous Materials 306 (octubre de 2020): 110512. http://dx.doi.org/10.1016/j.micromeso.2020.110512.

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45

Brøkner, C., K. E. Bach Knudsen, I. Karaman, K. L. Eybye y A. H. Tauson. "Chemical and physicochemical characterisation of various horse feed ingredients". Animal Feed Science and Technology 177, n.º 1-2 (octubre de 2012): 86–97. http://dx.doi.org/10.1016/j.anifeedsci.2012.06.005.

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46

Subhapradha, Namasivayam, Pasiyappazham Ramasamy, Vairamani Shanmugam, Perumal Madeswaran, Alagiri Srinivasan y Annaian Shanmugam. "Physicochemical characterisation of β-chitosan from Sepioteuthis lessoniana gladius". Food Chemistry 141, n.º 2 (noviembre de 2013): 907–13. http://dx.doi.org/10.1016/j.foodchem.2013.03.098.

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47

Konował, Emilia, Grażyna Lewandowicz, Joanna Le Thanh-Blicharz y Krystyna Prochaska. "Physicochemical characterisation of enzymatically hydrolysed derivatives of acetylated starch". Carbohydrate Polymers 87, n.º 2 (enero de 2012): 1333–41. http://dx.doi.org/10.1016/j.carbpol.2011.09.021.

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48

Rahma, E. Helmy, Steffi Dudek, Ralf Mothes, Eckhard G�rnitz y K. Dieter Schwenke. "Physicochemical characterisation of mung bean (Phaseolus aureus) protein isolates". Journal of the Science of Food and Agriculture 80, n.º 4 (marzo de 2000): 477–83. http://dx.doi.org/10.1002/(sici)1097-0010(200003)80:4<477::aid-jsfa553>3.0.co;2-0.

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49

Gautam, Shweta, Lubomir Lapcik, Barbora Lapcikova, David Repka y Lilianna Szyk-Warszyńska. "Physicochemical Characterisation of Polysaccharide Films with Embedded Bioactive Substances". Foods 12, n.º 24 (12 de diciembre de 2023): 4454. http://dx.doi.org/10.3390/foods12244454.

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Resumen

In this study, sodium carboxymethyl cellulose (CMCNa) bioactive films, crosslinked with citric acid (CA), were prepared and comprehensively examined for their suitability in various applications, focusing on food packaging. The films displayed favourable properties, including appropriate thickness, transparency, and moisture content, essential for packaging purposes. Moreover, the films exhibited excellent moisture absorption rate and barrier properties, attributed to the high concentration of CMCNa and the inclusion of a CA. These films presented no significant effect of crosslinking and bioactive components on their mechanical strength, as evidenced by tensile strength and elongation at break values. Thermal stability was demonstrated in the distinct weight loss events at different temperature ranges, with crosslinking contributing to slightly enhanced thermal performance. Furthermore, the films showed varying antioxidant activity levels, influenced by temperature and the solubility of the films in different media, indicating their potential for diverse applications. Overall, these bioactive films showed promise as versatile materials with desirable properties for food packaging and related applications, where the controlled release of bioactive components is advantageous for enhancing the shelf life and safety of food products. These findings contribute to the growing research in biodegradable and functional food packaging materials.

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50

Saito, Morena Senna, Wilton Amaral dos Santos y Maria Eugênia de Oliveira Mamede. "Coffee-Flavoured Kombucha: Development, Physicochemical Characterisation, and Sensory Analysis". Fermentation 10, n.º 7 (27 de junio de 2024): 334. http://dx.doi.org/10.3390/fermentation10070334.

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Considering the health benefits of kombucha, already widely studied, the objective of this study was to develop kombucha beverages with the addition of an infusion of specialty arabica coffee from the first fermentation, varying the proportion of specialty coffee (2% to 13%), and evaluate their pH, volatile acidity, degree of alcohol, centesimal composition, sodium contents, and colour parameters to determine the acceptability of the beverages. Concerning the pH, all of the formulations conformed with the kombucha identity standard, but K3 (11% coffee) and K4 (13% coffee) were below the established minimum for volatile acidity. Except for K4, all of the other formulations were classified as alcoholic kombuchas, although their values were very close to the limit for non-alcoholic beverages. The formulations presented low sugar and sodium contents, which corroborated their low caloric value. Therefore, coffee-flavoured kombucha fermented for 18 days becomes an option for consumers looking for low-calorie, refreshing, and healthy drinks. The luminosity of the beverages decreased as the proportion of coffee increased, and consequently, the values for a* and b* increased, indicating a strong tendency for a yellowish-red colour. Sensorially, the formulations K4 and K3 were the most well accepted in all respects and can therefore be considered formulations with high commercialisation potential.

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