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Wyświetlanie 1-15 z 17
Tytuł:
Characterization of graphene oxide-loaded chitosan hydrogels and their application for 3D printing
Autorzy:
Domalik-Pyzik, P.
Chłopek, J.
Powiązania:
https://bibliotekanauki.pl/articles/286115.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
hydrogels
graphene
chitosan
Źródło:
Engineering of Biomaterials; 2017, 20, no. 143 spec. iss.; 83
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chitosan microcapsules obtained by wet method as potential carriers for active substance
Autorzy:
Startek, J.
Dzierzkowska, E.
Golańska, J.
Stodolak-Zych, E.
Rapacz-Kmita, A.
Powiązania:
https://bibliotekanauki.pl/articles/283823.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
hydrogels
biomaterials
chitosan
Źródło:
Engineering of Biomaterials; 2018, 21, 148; 92
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fabrication and characterization of graphene-loaded chitosan hydrogels with cross-linking gradient
Autorzy:
Kosowska, K.
Domalik-Pyzik, P.
Chłopek, J.
Powiązania:
https://bibliotekanauki.pl/articles/285566.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
hydrogels
chitosan
nanocomposites
Źródło:
Engineering of Biomaterials; 2018, 21, 148; 40
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of chitosan in the formulation of dermatological hydrogels prepared on the basis of macromolecular compounds
Autorzy:
Szcześniak, Maria
Grimling, Bożena
Meler, Jan
Karolewicz, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/1034450.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitosan
hydrogels
rheological parameters
Opis:
The effect of chitosan concentration on the properties of dermatological preparations prepared with 2% methylcellulose and 10% polyvinylpyrrolidone was studied. As the levels of chitosan, propylene glycol-1,2 and glycerol increased, the hardness, consistency and cohesiveness of the hydrophilic gels increased, while the dissipation capacity decreased. Gels based on methylcellulose and chitosan, compared to formulations containing polyvinylpyrrolidone, have a higher rate of loss of volatile compounds, higher pH values for 1,2-propylene glycol formulation and higher texture parameters. The tested hydrogels have good rheological properties, allowing extrusion from the tube and spreading on the skin.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2018, 23; 179-184
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of thermosensitive hydrogels of chitosan, sodium and magnesium glycerophosphate for bone regeneration applications
Autorzy:
Liškova, J.
Bačakova, L.
Skwarczyńska, A.
Musiał, O.
Bliznuk, V.
De Schampelhaere, K.
Modrzejewska, Z.
Douglas, T. E. L.
Powiązania:
https://bibliotekanauki.pl/articles/284238.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
hydrogels
bone regeneration
chitosan
Źródło:
Engineering of Biomaterials; 2017, 20, no. 143 spec. iss.; 44
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The formation of hydrogels based on chitosan and its water-soluble derivatives
Autorzy:
Il’ina, Alla V.
Shagdarova, Balzhima Ts.
Lunkov, Alexey P.
Varlamov, Valery P.
Powiązania:
https://bibliotekanauki.pl/articles/1034059.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitosan
crosslinking agent
gelation
hydrogels
quaternized chitosan
succinyl chitosan
Opis:
This review considers articles on the formation of hydrogels based on chitosan as well as succinylated and quaternized chitosan derivatives. They are synthesized using low toxicity reagents, under ordinary conditions (low production costs). Chitosan derivatives are soluble in an extended range of pH values and characterized by mucoadhesiveness, bioavailability and biodegradability, which extends the potential of their medical applications. One of the most important properties of chitosan and its derivatives is the ability to form hydrogels. Depending on the nature of the bonds that occur during formation, hydrogels are divided into chemically or physically crosslinked, or a mixture of the two. Chemically crosslinked gels have covalent bonds, while physically crosslinked gels are formed by noncovalent interactions, for example, ionic. Mixed hydrogels have both types of crosslinking.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2020, 25; 5-15
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of chitosan in the formulation of hydrogels applied on skin
Autorzy:
Meler, Jan
Powiązania:
https://bibliotekanauki.pl/articles/1035198.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitosan
hydrocortisone
hydrogels
pharmaceutical availability
Opis:
These studies concerned the effect of composition on the substrate physicochemical parameters of hydrogels for use on skin. Hydrogels containing 1% of hydrocortisone and 1% of chitosan addition was made on the basis of methylcellulose, sodium carboxymethylcellulose and Carbopol 934 P. The release proceeds according to first-order kinetics. Depending on the type and composition of the polymer gels were obtained with various pharmaceutical availability of hydrocortisone. Addition of 1% chitosan affects the acceleration of the release in any given case.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2013, 18, 18; 181-186
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chitosan hydrogels modified with silk, graphene oxide or reduced graphene oxide
Autorzy:
Szaraniec, Barbara
Boruchowski, Marcin
Gryń, Karol
Chłopek, Jan
Powiązania:
https://bibliotekanauki.pl/articles/1844967.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
hydrogels
nanocomposites
chitosan
hydrożele
nanokompozyty
Źródło:
Engineering of Biomaterials; 2020, 23, 158 spec. iss.; 44
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of selected polymers on the rheological properties of hydrogels with chitosan applied on the skin
Autorzy:
Szcześniak, Maria
Grimling, Bożena
Meler, Jan
Karolewicz, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/1034591.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitosan
hydrogels
pharmaceutical availability
rheological parameters
Opis:
The aim of the study was to evaluate the effect of methylcellulose and carboxymethylcellulose on the rheological properties of hydrogels applied to skin on chitosan in the presence of the additives propylene glycol and glycerol. Rheological studies showed that the tested gels are non-newtonian systems, and have thixotropic properties. Substrates made of methylcellulose and chitosan are characterised by higher shear values than those obtained with carboxymethylcellulose. The addition of polymers had a positive influence on the dispersion of hydrogels, and the addition of excipients increased firmness, consistency and cohesiveness of the gels. Larger increases were observed with the addition of 10% of glycol propylene and glycerol contents for methylcellulose and of 20% of carboxymethylcellulose.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2017, 22; 201-206
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physicochemical properties and cytotoxicity of hydrogels based on Beetosan® containing sage and bee pollen
Autorzy:
Tyliszczak, Bożena
Drabczyk, Anna
Kudłacik-Kramarczyk, Sonia
Grabowska, Beata
Kędzierska, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/1038565.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
hydrogels
cytotoxicity
fibroblasts
chitosan
sage
wettability
Opis:
Currently, increasing attention is being paid to issues related to environmental protection, waste management, as well as to the development of polymers with useful properties. The research presented here involved preparation of hydrogels based on Beetosan® - a chitosan derived from the multi-stage processing of dead bees. Moreover, hydrogels were additionally modified with natural substances - i.e. bee pollen and extract of Salvia officinalis (sage) that are well known for the presence of many compounds with beneficial properties from a medical point of view. Materials have been first obtained by photopolymerization. Then, their surface morphology, wettability and cytotoxicity to selected cell lines have been determined. It can be stated that such combination of Beetosan® hydrogel matrix and the mentioned additives resulted in a preparation of polymers characterized by negative impact on cancer cells. Impact of hydrogels with sage is slightly more intense due to the presence of substances such as ursalic or rosmaric acid that are characterized to have anticancer activity. Such negative impact has not been observed in case of studies using fibroblasts. Furthermore, addition of natural substances into hydrogels resulted in a more homogeneous surface and in the decrease of wettability angle of the tested polymers. It can be concluded that the use of natural-derived reagents and synthesis of polymers using these reagents (as a result of environmentally friendly photopolymerization) yields materials with interesting properties for medical purposes, with particular emphasis on antitumor activity, and without significant negative impact on fibroblasts.
Źródło:
Acta Biochimica Polonica; 2017, 64, 4; 709-712
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chitosan hydrogels modified with silk, graphene oxide or reduced graphene oxide
Autorzy:
Szaraniec, Barbara
Boruchowski, Marcin
Gryń, Karol
Chłopek, Jan
Powiązania:
https://bibliotekanauki.pl/articles/1844881.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
hydrogels
nanocomposites
chitosan
hydrożele
nanokompozyty
chitozan
Źródło:
Engineering of Biomaterials; 2020, 23, 158 spec. iss.; 44
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanical properties of hydrogels in a chitosan/ silk/graphene system
Autorzy:
Boruchowski, Marcin
Gryń, Karol
Szaraniec, Barbara
Chłopek, Jan
Powiązania:
https://bibliotekanauki.pl/articles/1844939.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
hydrogels
chitosan
mechanical properties
hydrożele
właściwości mechaniczne
Źródło:
Engineering of Biomaterials; 2020, 23, 158 spec. iss.; 45
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of texture profile analysis to investigate the mechanical properties of thermosensitive injectable chitosan hydrogels
Autorzy:
Owczarz, Piotr
Rył, Anna
Wichłacz, Żaneta
Powiązania:
https://bibliotekanauki.pl/articles/1034254.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
TPA
chitosan
hydrogels
injectable scaffolds
mechanical properties
Opis:
In this paper, the mechanical properties of hybrid chitosan hydrogels were investigated using the texture profile analysis test. Scaffolds obtained from a polysaccharide of various molecular weights were studied, which, with the addition of glycerophosphate salt, formed a three-dimensional structure in vivo. The obtained systems were also enriched with collagen and calcium carbonate to improve the mechanical properties. The determined texture parameter values indicate that the mechanical properties of the hybrid hydrogel depend on the molecular weight of the polymer, the type of solvent and, the pH-neutralizing substance, as well as the type and concentration of the filler. Moreover, in some cases the TPA test was the only way to evaluate the mechanical properties of the obtained hydrogels due to the inability to determine the Young's modulus. Consequently, the texture analysis test is a valuable tool for selecting solutions depending on the intended application of the scaffolds.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2019, 24; 151-163
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis of bees’ chitosan based hydrogels containing Aloe vera
Autorzy:
Kudłacik-Kramarczyk, S.
Drabczyk, A.
Tyliszczak, B.
Powiązania:
https://bibliotekanauki.pl/articles/101614.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
beetosan
chitosan
hydrogels
Aloe vera
bees
waste management
Opis:
Chitosan based hydrogels due to their specific properties and structure belong to the group of materials widely used in medicine. They are used as drug carriers with controlled release of active substances and in the preparation of innovative wound dressings. The main aim of the conducted research was the choice of the most favorable parameters for carrying the cross-linking reaction by means of UV radiation and microwaves. Subsequently, an adequate composition of the mixture containing chitosan and gelatin for further modification of such prepared the polymer matrix with Aloe vera extract was selected. Subsequently, an impact of introduction of Aloe vera extract into hydrogel on its physicochemical properties and structure was determined. The scope of the research included the measurement of swelling abilities of hydrogels in distilled water and selected simulated body fluids as well as incubation studies aimed at determination of tendency of prepared materials to degradation in previously mentioned fluids and their compatibility in relation to such environments. In order to characterize the chemical structure of the polymers and impact of incubation on this structure spectroscopic analysis was performed. Microscopic analysis was used to define the surface morphology of the hydrogels. Moreover, materials containing Aloe vera extract were subjected to the studies of release of additive from hydrogel matrix. Research was conducted both in acid and alkaline environment.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/2; 1687-1698
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanical properties of hydrogels in a chitosan/ silk/graphene system
Autorzy:
Boruchowski, Marcin
Gryń, Karol
Szaraniec, Barbara
Chłopek, Jan
Powiązania:
https://bibliotekanauki.pl/articles/1844879.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
hydrogels
chitosan
mechanical properties
hydrożele
chitozan
właściwości mechaniczne
Źródło:
Engineering of Biomaterials; 2020, 23, 158 spec. iss.; 45
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
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