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Search results for: chitosan film
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Determination of changes in viscosity of chitosan solutions depending on shear rate.
Open Research DataThe rheological characteristics of chitosan solutions were based on viscosity measurements using a Brookfield viscometer, using LV SC4 - 25 spindles and shear rates from 4 to 53 s-1 (Fig. 1). Chitosan solutions with different molecular weights (low, medium and high) were prepared in concentrations from 1.5 to 3.0% in 0.5M acetic acid. The data allowed...
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The AFM micrographs of vanadium oxides thin films deposited on silicon - the influence of the thickness of the film on morphology
Open Research DataThe DataSet contains the atomic force microscope images of the surface of vanadium oxide thin films. The thin films were obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (1, 2 or 3 AsP layers) were deposited on a silicon substrate and were annealing...
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The influence of chitosan hydrogels on the morphology of L929 cells
Open Research DataRepresentative image at 20x magnification of L929 cells following 24 h of treatment with chitosan derivatives: chitosan dissolved in carbonic acid, chitosan dissolved in carbonic acid endotoxin free, chitosan dissolved in hydroacetic acid at 1:3 diluent factor. The scale bar is 100 µm; Microscope Olympus IX83, Tokyo, Japan).
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Cytotoxicity of chitosan hydrogels aginst L929 cells
Open Research DataThis study presents absorbance values of formazan product (converted from MTT) which corresponds to the cytotoxicity of chitosan compounds (dissolved in carbonic acid, dissolved in carbonic acid endotoxin free, and dissolved in hydroxyacetic acid) aginst adult mouse fibroblast L929 cells. The experiments were carried out according to the ISO 10993-5:2009(E)...
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SEM micrographs of morphology evolution of VO2 and V2O3 thin films obtained at 1000°C dependent on film thickness
Open Research DataThe DataSet contains the scanning electron microscopy (SEM) micrographs of VO2 and V2O3 thin films obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (2-3 AsP layers) were deposited on a silicon substrate and were annealing at 1000°C under an argon...
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The AFM micrographs of vanadium oxides thin films deposited on quartz glass - the influence of the thickness of the thin film on its morphology
Open Research DataThe DataSet contains the atomic force microscope images of the surface of vanadium oxide thin films. The thin films were obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (1, 2 or 3 AsP layers) were deposited on a quartz glass substrate and were...
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The effect of chitosan concentration and molecular weight on endotoxin content
Open Research DataThe dataset includes results to determine the effect of chitosan concentration and molecular weight on endotoxin content as well as the effect of purification methods. The endotoxin concentration was determined using the PyroGene Recombinant Factor C Endpoint Fluorescent Assay. Chitosan 0.6% in 0.1M glycolic acid from Chemat LMW, MMW, and HMW were used...
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The influence of chitosan hydrogel coating on different redox probes kinetics
Open Research DataThis dataset contains cyclic voltammetry studies of three redox probes: 1 mM K3[Fe(CN)6], [K4Fe(CN)6], C12H14FeO2, and [Ru(NH3)6]Cl2 dissolved in 0.1 M KCl or PBS as the primary electrolyte. The studies are made for glassy carbon electrode (GC) and glassy carbon electrode covered with thin chitosan hydrogel membrane (C2A2). Cyclic voltammograms were...
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Determination of changes in viscosity of chitosan cosmetic preparations depending on shear rate.
Open Research DataThe rheological characteristics of chitosan were made on the basis of a viscosity measurement using a Brookfield viscometer, using LV SC4 - 25 spindles and shear rates from 0.3 to 32 s-1 (Fig. 1). Chitosan solutions at 1% concentrations in acetic acid were prepared. The samples were subjected to storage tests.
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The viscometric evaluation of the gelation rate the chitosan-metal oxide hydrogel systems.
Open Research DataThe dataset shows the change in the viscosity of a hydrogel medium over time. Viscometric measurement was used as a universal method for determining the cross-linking rate of chitosan hydrogel using metal oxides or other solutions with a negative net charge. The method was prepared as a method of predicting the kinetics of additive manufacturing using...
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The results of the assessment of the degree of deacetylation, antimicrobial activity and cytotoxicity of chitosan materials
Open Research DataDane prezentują wyniki pomiarowe stopnia deacetylacji 5 komerycjnych chitozanów, które przetwarzane dwiema metodami oceniono pod kątem aktywności przeciwdrobnoustrojowej i cytotoksyczności względem modelowej linii fibroblastów mysich L929. Ocenie porównawczej poddano materiały chitozanowe otrzymywane klasyczną metodą rozpuszczania w roztworze...
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The influence of the type of composition of PVA-chitosan blends on stability at elevated temperature
Open Research DataThe dataset shows the results of a visual evaluation of chitosan and polyvinyl alcohol composites. The composites were prepared by combining chitosan water solutions, dissolved in selected acids, and polyvinyl alcohol solution, freeze drying, and heating at 150°C dry composites. The results confirm that the chitosan / PVA composites, in which the first...
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The influence of chitosan hydrogel cross-linking by agarose on coating physico-chemical properties
Open Research DataThis dataset contains various physicochemical analyses showing the effect of different concentration of chitosan and the cross-linking agent agarose. Each sample is labeled by C and A representing chitosan and agarose concentrations, respectively, while the exact amounts are depicted in the attached table. Fourier-transform infrared (FT-IR) spectroscopy...
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Evaluation of antimicrobial activity of porous composites based on chitosan/poly (vinyl alcohol)
Open Research DataThe dataset contains the results of microbiological tests of composite porous materials whose activity was assessed for their ability to reduce the number of Escherichia coli and Staphylococcus aureus strain, representing the Gram (-) and Gram (+) bacteria, respectively.
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The effect of zinc oxide concentration on dry matter content of chitosan gels in carbonic acid.
Open Research DataThe dataset contains results determining the effect of zinc oxide addition at different concentrations on the dry matter content of chitosan gels in carbonic acid after a specified time. Zinc oxide at concentrations of 0.5 and 1% was added as a powder to a 1% solution of chitosan in carbonic acid and then homogenized. Differences were observed in the...
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A novel method for drop in drop edible oils encapsulation with chitosan using a coaxial technique
Open Research DataThe dataset present a novel one step method for oil encapsulation. In this coaxial system the oil constitutes the core of the capsule, while the chitosan solution is the polymer shell surrounding the core to provide separation of the core from the external environment. In comparison to other encapsulation methods, the presented technique is much simpler...
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Depth profile of the composition of 8 nm Al2O3 thin film
Open Research Data8 nm layer of aluminum oxide (Al2O3) was deposited by ALD method on a s. Atomic layer deposition provides precise thickness control down to a single atomic layer. The precursors used were trimethylaluminum (Sigma-Aldrich) and purified water. The deposition of the atomic layer was carried out at 200 °C. To investigate the profile of concenration of...
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Results of SEM examination of chitosan/Eudragit E 100 coatings electrophoretically deposited on the Ti grade 2 substrate
Open Research DataThe database contains the images of the microstructure of the coatings observed with the SEM scanning electron microscope. The chitosan/Eudragit E 100 coatings deposited on the Ti grade 2 substrate by an electrophoresis process were tested. Different process parameters like Eudragit E 100 concentration (0.25 g and 0.5 g in 100 mL of 1% (v/v) acetic...
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The assessment of microbiological antimicrobial properties of PE film loaded with nanozinc filler
Open Research DataThe dataset contains the results of a single series of determinations of the antimicrobial properties against E. coli and S. aureus of polyethylene films containing the nanozinc filler.
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Au nanostructures coated with a ultrathin film of Al2O3 - measurements and FDTD simulations
Open Research DataGold plasmonic platforms have been coated with an ultra-thin films of aluminium oxide. Optical measurements, showing the influence of the thickness of Al2O3 on plasmon resonance position. The observed red-shift of the resonance location with the increase of the thickness of the Al2O3 film, can be explained by the change in the dielectric function of...
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XRD patterns of V2O5 thin film morphology dependent on substrate types
Open Research DataThe DataSet contains the XRD patterns of the V2O5 thin film structure dependent on substrate types. The as-prepared thin films were deposited on alumina, zirconium, zirconium oxide and metallic vanadium substrate, then was annealing under an oxidizing atmosphere at 600C for 10h.
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SEM micrographs of V2O5 thin film morphology dependent on substrate types
Open Research DataThe DataSet contains the scanning electron microscopy (SEM) micrographs of V2O5 thin film morphology dependent on substrate types. The as-prepared thin films were deposited on alumina, zirconium, zirconium oxide and metallic vanadium substrate, then was annealing under an oxidizing atmosphere at 600C for 10h. The results show that the morphology of...
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Ultra-thin film of aluminum oxide influence on the plasmon resonance in gold nanostructures
Open Research DataUltra-thin film of aluminum oxide influence on the plasmon resonance in gold nanostructures was measured by UV-VIS spectroscopy. Ultra thin film of Al2O3 was deposited on a gold nanostructures. Thickness of film was 2nm - 8nm. Shift of plasmon resonance was observed, as a result of various dielectric constant of layer.
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Structural investigations of the LTO:Cu thin films
Open Research DataLithium titanate (Li1+xTi2-xO4) doped with Cu2+ ions was synthesized by sol-gel processing method. The structure was characterized by X-ray Diffraction (XRD). All samples revealed presence of LTO spinel phase. X-ray pattern of undoped LTO was free of any impurities and other crystal phases. Similarly, samples with low amount of copper dopant (x = 0.05...
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Optical transmission of the Niobium thin films
Open Research DataNiobium thin films with a thickness of 200nm were deposited n a Corning glass substrate by magnetron sputtering method. The optical transmission spectra in a visible light range were.recorded. Investigations showed a good optical transmission thru the layers for each samples, annealed at various temperatures. For measurements samples annealed at 500,...
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Luminescence of TeO2:Eu thin films
Open Research DataTellurium dioxide doped by europium thin films were deposited by magnetron sputtering method and simultaneously heated at 200 oC. Presence of Eu ions and their valence states was confirmed by X-ray photoemission spectroscopy measurements. The structure of the films as well as the influence of europium dopant on crystalline structure of the films was...
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SEM images of dewetted gold films
Open Research DataGold nanostructures were prepared on silicon - Si(111) as a substrate. as a result of dewetting process. Thin golds films were deposited using a table-top dc magnetron sputtering coater under pure Ar plasma conditions . The Au target had 99.99% purity, the rate of Au layer deposition was about 0.4 nm·s−1 and the incident power was 32 W. The thickness...
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Optical properties of tellurium dioxide thin films
Open Research DataTeO2 and TeO2 doped by Eu thin films manufactured by magnetron sputtering method were measured by optical spectroscopy. Metallic Te target and Te-Eu mosaic target with diameter of 50.8 mm were sputtered for about 45 min in argon-oxygen atmosphere what resulted in 300 nm film thickness deposition. The pressure in the chamber was below 0.2 Pa and substrate...
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Luminescence properties of TeOx-Eu thin films
Open Research DataThe DataSet contains the emission and excitation spectra of TeOx-Eu thin films. The material was obtained by the sol-gel method. The starting solution was prepared by mixing telluric acid (precursor) with thetraetylene glycol, water, and ethanol. Next, the 5% mol of europium ions were added, the nitrates were used as a source of rare-earth ions. The...
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Luminescence properties of TeOx-Tb thin films
Open Research DataThe DataSet contains the emission and excitation spectra of TeOx-Tb thin films. The material was obtained by the sol-gel method. The starting solution was prepared by mixing telluric acid (precursor) with thetraetylene glycol, water, and ethanol. Next, the 5% mol of terbium ions were added, the nitrates were used as a source of rare-earth ions. The...
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Structural analysis of the tellurium dioxide thin films
Open Research DataTeO2 thin films were deposited by magnetron sputtering method. After deposition, amorphous samples were annealed at various temperatures. Influence of annealing temperature on a presence of crystalline phase was investigated.
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Electrical measurements of the dewetting of metal thin films
Open Research DataIn situ observations of dewetting of thin films is very complicated. One of the method, that helps to observe it, could be electrical measurements. For experiments, thin gold, silver and gold-silver nanoalloy films were deposited by magnetron sputtering method. Films were deposited on a Corning glass substrates. Samples were measured by four point method...
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Analysis of the electrical parameters of the LTO thin films
Open Research DataLithium titanate thin films were derived by sol-gel technique. Films with thickness ca. 800 nm were annealed for various time, in a range of 10h-80h at 550 deg. Electrical conductivity in a wide range of temperature was measured.
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Structural investigations of the Al2O3 ultra thin films
Open Research DataUltra-thin layers of Al2O3 were deposited by atomic layer deposition (ALD) (Beneq TFS 200 ALD system). This method provides precise thickness control down to a single atomic layer. The precursors used were trimethylaluminum (Sigma-Aldrich) and purified water. The deposition of the atomic layer was carried out at 200 °C. Samples with a thickness of 2...
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XRD analysis of the tellurium dioxide thin films
Open Research DataTellurium dioxide thin films were deposited by magnetron sputtering method. The XRD analysis of the films annealed at 200, 500, 650 and 700 celsius degree showed appearing of crystalline phase in a higher temeratures.
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Luminescence properties of TeOx-Dy thin films
Open Research DataThe DataSet contains the emission and excitation spectra of TeOx-Dy thin films. The material was obtained by the sol-gel method. The starting solution was prepared by mixing telluric acid (precursor) with thetraetylene glycol, water, and ethanol. Next, the 5% mol of dysprosium ions were added, the nitrates were used as a source of rare-earth ions....
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Morphology of the sol-gel derived LTO:Cu films
Open Research DataMorphology of the lithium titanate doped by Cu thin films were investigated by SEM microscope. Films were deposited by spin-coater from sol-gel derived sol. SEM images showed a high porous structure, tipaciall for sol-gel based films. For measurements samples with a various content of Cu were selected.
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Dewetting of silver films detected by XPS method
Open Research DataDewetting of silver thin films was detected by XPS method. Thin metallic films were deposited by magnetron sputtering method. Formation of nanostructures , as a result of thermal annealing, was confirmed by SEM microscope. For comparision three samples were measured. Bulg gold, as-deposited silver film with thickness of 3 nm and nanostructures.
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XRD investigations of the lithium titanate thin films
Open Research DataNanocrystalline thin films with 800 nm thickness were prepared by sol–gel method. To examine the influence of the annealing temperature on as-prepared films crystallization, the coatings were heated at temperature from 500 °C up to 600 °C for 20h. Structure of manufactured thin films was investigated using X-ray diffraction (XRD). The most visible...
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Chemical investigation of the Al2O3 ultra-thin films
Open Research DataUltra-thin layers of oluminum oxide (Al2O3) were deposited by ALD method. Atomic layer deposition provides precise thickness control down to a single atomic layer. The precursors used were trimethylaluminum (Sigma-Aldrich) and purified water. The deposition of the atomic layer was carried out at 200 °C. Samples with a thickness of 2 and 8 nm of alumina...
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Autodesk AUTOCAD file with the dome's geometry outline
Open Research DataThis dataset consists of an Autodesk AUTOCAD file with the dome's geometry outline.The studies carried out in the "Miniatura 7" scientific grant were devoted to both experimental and theoretical (numerical) measurements executed on a tensegrity dome model (with a Fuller-type grid) to identify the changes in the state of displacements, induced by the...
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TEM and EDX study of the Al2O3 ultra thin films
Open Research DataThe ultra-thin layers of Al2O3 were deposited on a silicon substrates. The method of atomic layer deposition (Beneq TFS 200 ALD system) was chosen as the proper method of dielectric layer deposition. This method provides precise thickness control down to a single atomic layer. The precursors used were trimethylaluminum (Sigma-Aldrich) and purified water....
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XLS file with the initial data on the dome's geometry outline
Open Research DataThis dataset consists of an XLS file with the initial data on the dome's geometry outline.
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Results of wettability evaluation of acrylic bone cements incorporating various components
Open Research DataThe database contains the images of the contact angle measurements of modified bone cements using the optical tensiometer. The following modifications were evaluated: the addition of biodegradable components (including chitosan, cellulose, tricalcium phosphate, polydioxanone or magnesium), the addition of bioactive components (bioglasses) or the addition...
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Results of microhardness measurements of acrylic bone cements incorporating various components
Open Research DataThe database contains the images of microhardness measurements of modified bone cements using the Vickers Hardness Tester. The following modifications were evaluated: the addition of biodegradable components (including chitosan, cellulose, tricalcium phosphate, polydioxanone or magnesium), the addition of bioactive components (bioglasses) or the addition...
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Results of SEM examination of acrylic bone cements incorporating various components
Open Research DataThe database contains the images of the microstructure of modified bone cements observed with the scanning electron microscope (SEM). The following modifications were evaluated: the addition of biodegradable components (including chitosan, cellulose, tricalcium phosphate, polydioxanone or magnesium), the addition of bioactive components (bioglasses)...
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Results of OM examination of acrylic bone cements incorporating various components
Open Research DataThe database contains the images of the microstructure of modified bone cements observed on the cross-section with the optical microscope (OM). The following modifications were evaluated: the addition of biodegradable components (including chitosan, cellulose, tricalcium phosphate, polydioxanone or magnesium), the addition of bioactive components (bioglasses)...
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Results of AFM examination of acrylic bone cements incorporating various components
Open Research DataThe database contains the images of the surface topography of modified bone cements observed with the atomic force microscopy (AFM). The following modifications were evaluated: the addition of biodegradable components (including chitosan, cellulose, tricalcium phosphate, polydioxanone or magnesium), the addition of bioactive components (bioglasses)...
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XRD patterns of V2O5 thin films deposited on silicon substrate
Open Research DataThe DataSet contains the XRD patterns of V2O5 thin films deposited on a silicon substrate. The as-prepared thin films were annealing under an oxidizing atmosphere in the temperature range of 300-600C. The results show that the structure of the films dependent on the annealing temperature.
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XRD patterns of V2O5 thin films deposited on quartz glass
Open Research DataThe DataSet contains the XRD patterns of V2O5 thin films deposited on a quartz glass substrate. The as-prepared thin films were annealing under an oxidizing atmosphere in the temperature range 200-600C. The results show that the structure of the films dependent on the annealing temperature.