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Acta Innovations
2018 no. 27 14--23
EN The thermosensitive hydrogels are widely used in tissue engineering due to their non-invasive application. Special interest of researchers, due to the specific characteristics of both materials, is aimed at composites of natural origin obtained from chitosan hydrogels combined with collagen. The mec[...]
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Inżynieria i Aparatura Chemiczna
2006 Nr 5s 141-143
EN Experiments dealing with the kinetics and sorption equilibrium of selected heavy metal ions on a specially prepared sorbent were preformed. Heavy metals as copper, zinc and chromium were chosen for tests. Kinetics data enable one to determine the proper equations for description of sorption kinetics[...]
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LAB Laboratoria, Aparatura, Badania
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Prace Naukowe Instytutu Podstaw Elektrotechniki i Elektrotechnologii Politechniki Wrocławskiej. Konferencje
EN The dielectric relaxation in the biocellulose modified by chitosan, chitosan acetate and chitosan lactate was studied in the frequency range from 100 Hz to 1 MHz in the temperature range 100 to 450 K. Three dielectric relaxations were found and assigned to the corresponding orientational processes o[...]
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International Journal of Applied Mechanics and Engineering
EN Polymers of natural origin, including chitin and products of its degradation, attract attention of biomedical engineering specialists. The presented investigations of rheological properties of chitosan salt solutions are a basis for determination of initial parameters of chitosan membrane formation.[...]
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Przemysł Chemiczny
2003 T. 82, nr 8-9 1138-1142
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Nukleonika
EN The preparation of 165Dy-labeled chitosan for radiosynovectomy applications is described in this paper. 165Dy (T1/2 = 2.33 h) was prepared by irradiation of natural Dy(NO3)3 at a flux of 3.4 x 1013 neutrons/cm2.s for about 6 h. The irradiation resulted in the production of 11.1 GBq (300 mCi) of 165D[...]
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Environment Protection Engineering
EN Heavy metals directly influence every living organism and are one of the most dangerous water pollutants. Therefore, even a very low concentration of heavy metals, of the ppm order of magnitude, can be dangerous. The standard methods of heavy metal ion removal have not always allowed us to remove th[...]
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Physicochemical Problems of Mineral Processing
EN Hydroxyapatite (HAp)/chitosan (CS) composites were synthesized via a one-step co-precipitation method from aqueous solution, with the use of calcium chloride (CaCl2) and disodium hydrogen phosphate (Na2HPO4). CS was obtained via partial deacetylation of chitin with the use of strong sodium hydroxide[...]
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Archives of Metallurgy and Materials
EN In this study, chitosan coatings were electrophoretically deposited (EPD) on near-β Ti-13Nb-13Zr alloy. The influence of colloidal solution composition and EPD parameters on the quality of chitosan coatings was investigated. It was established that the uniformity of as-deposited chitosan coatings is[...]
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Nukleonika
2017 Vol. 62, No. 4 245--251
EN The aim of this study is to exploit a suitable chitosan extraction method from the chitin of indigenous shrimp shells by employing different physicochemical treatments and to improve different bioactive properties of this extracted chitosan (CS) by applying gamma radiation. Chitin was prepared from [...]
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Archives of Metallurgy and Materials
EN This paper presents the results of the optimization of electrophoretic deposition parameters for manufacturing of nc-TiO2/chitosan composite coatings on X2CrNiMo17-12-2 steel as well as characterization of their microstructure, electrochemical properties and adhesion to the substrate. The parameters[...]
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Journal of Ecological Engineering
2018 Vol. 19, nr 1 143--149
EN The genus Petunia is a plant of high economic importance in the world-wide horticulture. These ornamental plants are often exposed to soil salinity that negatively affects their development. Chitosan is a biopolymer with multiple applications in plant breeding but it also minimizes the adverse effec[...]
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Engineering of Biomaterials
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Engineering of Biomaterials
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Engineering of Biomaterials
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Engineering of Biomaterials
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Engineering of Biomaterials
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Engineering of Biomaterials
EN Calcium phosphate cement (CPC) has been success-fully used in bone tissue regeneration for many years. However, poor mechanical properties and low biodegradation rate limit any further applications. R-cement has a higher solubility than conventional CPC and its reaction products (CDHA) are similar t[...]
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Engineering of Biomaterials
EN The objective of our in vivo study was to investigate the biocompatibility of polymer foils enriched with chitosan. Methods: three types of chitosan: non-modified(jp), and modified with montmorillonite K5 and montmorillonite K10 (p2-p3) were prepared. The in vivo studies were carried out using the r[...]
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