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    Wyświetlanie 1-21 z 21
    Tytuł:
    New composites based on bacterial nanocellulose and collagen
    Autorzy:
    Sionkowska, Alina
    Mężykowska, Oliwia
    Saha, Nabanita
    Powiązania:
    https://bibliotekanauki.pl/articles/285415.pdf
    Data publikacji:
    2019
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Źródło:
    Engineering of Biomaterials; 2019, 22, no.153; 32
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modern dressing and cosmetic materials based on hyaluronic acid modified with Egg albumin
    Autorzy:
    Gadomska, Magdalena
    Musiał, Katarzyna
    Sionkowska, Alina
    Powiązania:
    https://bibliotekanauki.pl/articles/1844740.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Źródło:
    Engineering of Biomaterials; 2021, 24, 163; 89
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New materials based on hyaluronic acid and egg albumin mixture
    Autorzy:
    Gadomska, Magdalena
    Musiał, Katarzyna
    Sionkowska, Alina
    Powiązania:
    https://bibliotekanauki.pl/articles/1844862.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    hyaluronic acid
    albumin from chicken egg
    mechanical properties
    polymer films
    Opis:
    In this work, new materials based on the mixture of hyaluronic acid and albumin from chicken eggs have been studied. Tests were carried out to determine the molecular weight of the tested hyaluronic acids. The properties of hyaluronic acid were investigated and significant differences were found in the mechanical properties of the tested compound, depending on its molecular weight. It was found that egg albumin can be combined with hyaluronic acid and thin films can be obtained. Spectrometric tests were performed both for pure compounds and for mixtures of hyaluronic acid with chicken egg albumin. IR spectroscopy showed that interactions between hyaluronic acid and egg albumin are mainly by hydrogen bonds, as the shifts in the main bands in IR spectra were observed. The addition of egg albumin to hyaluronic acid leads to the decrease of its mechanical properties. The deterioration of the mechanical properties of polymer films from HA-albumin mixtures may be due to interactions between compounds which were shown in the IR spectra. The thin films based on hyaluronic acid and egg albumin blend can be used as adhesive materials in biomedicine and cosmetics. Both biopolymers are biocompatible and biodegradable so we can expect a biocompatible and biodegradable material for potential application as adhesives.
    Źródło:
    Engineering of Biomaterials; 2021, 4, 160; 15-21
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of the intermolecular interaction on physico-chemical properties of chitosan/hyaluronic acid blends
    Autorzy:
    Lewandowska, Katarzyna
    Sionkowska, Alina
    Grabska, Sylwia
    Powiązania:
    https://bibliotekanauki.pl/articles/1034820.pdf
    Data publikacji:
    2015
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    AFM microscopy
    chitosan
    hyaluronic acid
    polymer blends
    viscosity interaction parameters
    Opis:
    In the present study, the results of viscosity measurements in dilute solutions of chitosan (Ch) with hyaluronic acid (HA) are presented. Chitosan is blended with hyaluronic acid in aqueous 0.1M CH3COOH/0.2M NaCl and 0.3M NaCl respectively, or with the addition of HEPES. Viscosity measurements of dilute polymer solution were carried out in an Ubbelohde capillary viscometer. The intrinsic viscosity, [], and the viscosity interaction parameters, bm, have been determined for the binary (solvent/polymer) and ternary (solvent/polymer A/polymer B) systems. The homogeneity and morphology of chitosan blends were ascertained from the tapping-mode atomic force microscopy. The surface roughness of chitosan, hyaluronic acid and Ch/HA blended films was altered by mixing. The obtained results suggested that there was existence of the strong interactions between chitosan and hyaluronic acid.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2015, 20; 170-176
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Viscometric studies of chitosan/polyacrylamide mixtures
    Autorzy:
    Lewandowska, Katarzyna
    Sionkowska, Alina
    Krasińska, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/1035184.pdf
    Data publikacji:
    2014
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    chitosan
    miscibility criteria
    polyacrylamide
    polymer blends
    viscosity interaction parameters
    Opis:
    Polymer-polymer interactions and miscibility for chitosan (Ch) and partially hydrolysed polyacrylamide (HPAM) have been investigated using dilute solution viscosity. The intrinsic viscosity, [η], and the viscosity interaction parameters, bm, have been determined for the binary (solvent/polymer) and ternary (solvent/polymer A/polymer B) systems. Degree of miscibility of these polymer mixtures was estimated on the basis of two criteria. The final result depends on (i) the applied extrapolation method used for determination of the interaction parameters, (ii) the assumed miscibility criteria, and (iii) the blend composition.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2014, 19; 73-78
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rheological properties of collagen gels after UV treatment
    Autorzy:
    Sionkowska, Alina
    Adamiak, Katarzyna
    Lewandowska, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/1844906.pdf
    Data publikacji:
    2020
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    rheological properties
    collagen gel
    treatment
    właściwości reologiczne
    żel kolagenowy
    lecznictwo
    Źródło:
    Engineering of Biomaterials; 2020, 23, 158 spec. iss.; 9
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of the type solvent on the structure of chitosan blends with hyaluronic acid
    Autorzy:
    Lewandowska, Katarzyna
    Sionkowska, Alina
    Grabska, Sylwia
    Powiązania:
    https://bibliotekanauki.pl/articles/1034698.pdf
    Data publikacji:
    2016
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    chitosan
    hyaluronic acid
    microscopy.
    polymer blends
    surface properties
    Opis:
    The influence of the type solvent on the structure of chitosan, hyaluronic acid and their blend films was investigated. Aqueous acetic acid, hydrochloric acid, sodium chloride and aqueous acetic acid/NaCl were used as solvents for chitosan, hyaluronic acid and Ch/HA solution blends. Ch, HA and their blend films were prepared by casting technique. The homogeneity and morphology of chitosan blends were ascertained from the tapping-mode atomic force microscopy (AFM) and scanning electron microscopy (SEM). The changes of topography images are considered by determining the root mean square (RMS, Rq) deviation in the image data. The surface roughness of chitosan, hyaluronic acid and Ch/HA blended films was altered by mixing. The structure of chitosan blends with hyaluronic acid depends on the blend composition and on the solvent used for preparing the blend.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2016, 21; 147-153
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characterisation of chitosan after cross-linking by tannic acid
    Autorzy:
    Sionkowska, Alina
    Kaczmarek, Beata
    Lewandowska, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/1035183.pdf
    Data publikacji:
    2014
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    chitosan
    cross-linking
    mechanical properties
    tannic acid
    Opis:
    Chitosan is widely applied in biomedical and cosmetic fields. For this reason, there is a need to modify this biopolymer to achieve new properties of chitosan-based materials. The properties of chitosan can be modified by several cross-linking methods. In this work, we used the chemical cross-linking of chitosan with tannic acid, after which cross-linked chitosan was shaped into a 3D structure by the lyophilisation process. For the material obtained, FTIR-ATR analysis was performed to characterise the structure of cross-linked chitosan. Moreover, mechanical properties and swelling properties were measured for chitosan before and after cross-linking. The results show that several properties of chitosan can be changed after cross-linking by tannic acid. The positions of bands in the FTIR spectra of chitosan were shifted after cross-linking. Mechanical properties were altered for cross-linked chitosan. However, the highest compressive modulus was observed for pure chitosan. The lowest compressive modulus was observed for chitosan cross-linked with 20 wt% of tannic acid. Swelling behaviour also depends on the cross-linking of chitosan. It decreases for chitosan after cross-linking by tannic acid. Overall, the properties of cross-linked chitosan depend on the amount of tannic acid used for modification. This method of cross-linking can be useful for obtaining materials with specific properties.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2014, 19; 135-138
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Composites based on polyvinyl alcohol, chitosan, and curcumin for wound healing applications
    Autorzy:
    Tahir, Muhammad
    Vicini, Silvia
    Sionkowska, Alina
    Powiązania:
    https://bibliotekanauki.pl/articles/27324034.pdf
    Data publikacji:
    2022
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    polyvinyl alcohol
    chitosan
    curcumin
    polymer
    blends
    wound healing
    chitozan
    polimery
    biomateriały
    Opis:
    Natural polymers, like chitosan, collagen, and alginate, offer promising solutions for wound healing. Derived from natural sources, they exhibit biocompatibility and bioactivity, promoting tissue regeneration. These polymers can form scaffolds or dressings that accelerate wound closure while reducing infection risks. Their inherent properties make them promising options in the quest for effective wound care materials. In this work, composites based on polyvinyl alcohol (PVA), chitosan (Chi), and curcumin (Cur) were prepared. PVA, a synthetic water-soluble polymer, finds extensive use in biomedical and wound-healing applications. It is approved by the U.S. FDA for cosmetic, medical, and wound healing products. Chi, a polysaccharide, is widely used in biomedicine and possesses antibacterial properties. Both PVA and chitosan are biocompatible and exhibit good filming characteristics. Curcumin (Cur) with antibacterial and antioxidant properties is being explored for regenerative medicine. PVA, chitosan, and curcumin were blended. The structure was studied by FTIR, microscopic observations were done with optical and scanning electron microscopes, and the mechanical properties were assessed. FTIR revealed component interactions, while microscopy showed a flat film surface. The polymeric blend (PVA/Chi/Cur) had a Young’s modulus of 1.49 GPa, tensile strength of 47.69 MPa, stress value of 8.39 N, and 35.34% elongation at break. These properties make the blend suitable for consideration in wound healing applications.
    Źródło:
    Engineering of Biomaterials; 2022, 25, 167; 10--16
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modification of chitosan films with fish skin collagen
    Autorzy:
    Sionkowska, Alina
    Musiał, Katarzyna
    Gadomska, Magdalena
    Adamiak, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/1844754.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Źródło:
    Engineering of Biomaterials; 2021, 24, 163; 90
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New composites based on bacterial nanocellulose and gelatin
    Autorzy:
    Sionkowska, Alina
    Mężykowska, Oliwia
    Saha, Nabanita
    Menaszek, Elżbieta
    Powiązania:
    https://bibliotekanauki.pl/articles/1844920.pdf
    Data publikacji:
    2020
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    composites
    nanocellulose
    gelatin
    kompozyty
    nanoceluloza
    żelatyna
    Źródło:
    Engineering of Biomaterials; 2020, 23, 158 spec. iss.; 8
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fish collagen and chitosan mixtures as a promising biomaterial for potential use in medicine and cosmetic industry
    Autorzy:
    Sionkowska, Alina
    Musiał, Katarzyna
    Gadomska, Magdalena
    Adamiak, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/2232170.pdf
    Data publikacji:
    2022
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    collagen
    chitosan
    blends
    medicine
    cosmetics
    Opis:
    For the last three decades, an increasing interest in new materials based on blends of two or more polymers has been observed. Fish skin collagen and chitosan are constantly highly popular among scientists. This study aimed to obtain thin films from mixtures of low and medium molecular weight chitosan with fish collagen in three different ratios and examine their features for potential use in medicine and cosmetic industry. Polymer blends in ratios 25:75, 50:50, and 75:25 were made to obtain thin films. The infrared spectroscopy, mechanical properties study, contact angle measurements, topographic imaging, and swelling test were used to characterize the features of the films. A statistical appraisal of the results was conducted with the Q-Dixon’s test. The infrared spectroscopy analysis showed that in the IR spectra of the examined biomaterials, there are shifts in the bands positions proving intermolecular interactions between collagen and chitosan in the blends. The mechanical properties in the mixtures were different from those of a single biopolymer film. Hydrophilicity and polarity of the blends decrease with the increasing collagen content, which may suggest that the adhesion to the skin will be enhanced. The surface topography of the obtained films varies depending on the ratio of biopolymers in the mixtures. The swelling tests indicated that chitosan absorbs more water than collagen. The properties of the films made of collagen-chitosan mixtures vary depending on the molecular weight of chitosan and the content of each biopolymer in the blend.
    Źródło:
    Engineering of Biomaterials; 2022, 25, 164; 16--24
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characterisation of chitosan/hyaluronic acid blend films modified by collagen
    Autorzy:
    Lewandowska, Katarzyna
    Sionkowska, Alina
    Grabska, Sylwia
    Michalska, Marta
    Powiązania:
    https://bibliotekanauki.pl/articles/1034575.pdf
    Data publikacji:
    2017
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    chitosan
    collagen
    hyaluronic acid
    polymer blends
    surface properties
    Opis:
    In the present study, thin films based on the blends of chitosan (Ch) and hyaluronic acid (HA) with and without collagen (Coll) were characterised using tensile tests, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and thermogravimetric analysis (TGA). Ch/HA and Ch/HA/Coll polymer blends were prepared using the solvent evaporation technique. The interactions between polymer components in the binary and ternary blends were studied by FTIR analysis. Mechanical properties were studied and compared with those of simple polymer films. These results show that the addition of collagen into Ch/HA blends led to the increase of tensile strength and Young modulus. Moreover, it was found that the thermal stability of the Ch/HA binary blend significantly increased upon the addition of collagen.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2017, 22; 125-134
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristics of physicochemical and rheological properties of chitosan hydrogels based on selected hydroxyacids
    Autorzy:
    Zavyalova, Olga
    Gajewska, Sandra
    Dąbrowska-Wisłocka, Dominika
    Sionkowska, Alina
    Powiązania:
    https://bibliotekanauki.pl/articles/1844766.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Źródło:
    Engineering of Biomaterials; 2021, 24, 163; 92
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristics of physicochemical and rheological properties of chitosan hydrogels based on selected hydroxy acids
    Autorzy:
    Zavyalova, Olga
    Gajewska, Sandra
    Dąbrowska-Wisłocka, Dominika
    Sionkowska, Alina
    Powiązania:
    https://bibliotekanauki.pl/articles/2058389.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    chitosan
    lactobionic acid
    mandelic acid
    rheology
    FTIR spectra
    chitozan
    reologia
    hydrożele
    Opis:
    Chitosan is a natural cationic polymer that dissolves in an acidic environment and forms gels. Its properties depend on the degree of deacetylation and molecular weight. It is a bioactive compound with antibacterial and film-forming properties that allow to increase the regenerative capacity of the skin. Moreover, it is biodegradable, biocompatible, non-toxic, and stable. In this research, chitosan was combined with mandelic and lactobionic acids which are characterized by biological activity and low toxicity. This combination not only has a positive effect on the chitosan solubility, but it also allows to obtain new biomaterials whose positive features of the base ingredients are enhanced by their synergistic effect. The obtained hydrogels were assessed regarding the interaction of chitosan and hydroxy acid molecules, and the stability of the resulting structures was examined. The research was performed by using rheological methods and IR spectroscopy. Chitosan hydrogels made with mandelic acid are characterized by higher viscosity values, as compared to hydrogels containing lactobionic acid. The samples of the obtained hydrogels stored for 7 days showed no signs of degradation and their viscosity values were constantly increasing, which proves the ongoing process of creating new bonds between hydroxy acid molecules and chitosan chains. After this time, the hydrogels with mandelic acid revealed higher viscosity values in comparison to hydrogels made with lactobionic acid. Based on the obtained IR spectra, the shifts of the characteristic chitosan bands as a result of interaction with the tested hydroxy acids were analyzed.
    Źródło:
    Engineering of Biomaterials; 2021, 24, 161; 2--7
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristics of swelling and mechanical properties of chitosan films based on selected hydroxyacids
    Autorzy:
    Zavyalova, Olga
    Gajewska, Sandra
    Dąbrowska-Wisłocka, Dominika
    Sionkowska, Alina
    Powiązania:
    https://bibliotekanauki.pl/articles/1844764.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Źródło:
    Engineering of Biomaterials; 2021, 24, 163; 93
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Materials based on chitosan enriched with zinc nanoparticles for potential applications on the skin
    Autorzy:
    Kulka, Karolina
    Szmejkowska, Andżelika
    Sionkowska, Alina
    Wypij, Magdalena
    Golińska, Patrycja
    Powiązania:
    https://bibliotekanauki.pl/articles/27324035.pdf
    Data publikacji:
    2022
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    chitosan
    zinc oxide nanoparticles
    polymer films
    antimicrobial activity
    chitozan
    biomateriały
    biodegradowalność
    Opis:
    Chitosan as a nontoxic, biodegradable, and biocompatible biopolymer with film-forming properties can also be modified to improve its parameters. Modification of polymer films by the addition of nanoparticles is an increasingly common solution due to the higher efficiency of products at the nanoscale compared to the macroscale. In this work, thin chitosan films enriched with biogenic zinc oxide nanoparticles (ZnONPs) from Fusarium solani IOR 825 were obtained by the solvent evaporation method. The influence of nanoadditive on the physicochemical, mechanical, and antimicrobial properties of the polymeric matrix was evaluated. Two different concentrations of ZnONPs were added to the chitosan solution. Spectrometric measurements, mechanical tests, microscopic imaging, and microbiological tests were performed for nanoparticlesmodified and control samples. Analysis revealed that ZnONPs influence the properties of chitosan films. FTIR spectroscopy showed changes that are the result of interactions between polymer matrix and the additive. Modified samples were characterized by increased values of Young’s modulus and tensile strength. SEM analysis combined with energy-dispersive X-ray spectrometry confirmed the presence of zinc in the modified films. The addition of nanoparticles slightly affected the surface morphology of the tested samples, and an increase in roughness was observed. Microbiological tests showed the biostatic activity of the films containing ZnONPs. The obtained films based on chitosan with the addition of ZnONPs can be considered easy-to-obtain biomaterials with potential use as cosmetic and biomedical products.
    Źródło:
    Engineering of Biomaterials; 2022, 25, 167; 24--31
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristic of fish collagen films cross-linked with glutaraldehyde
    Autorzy:
    Kulka-Kamińska, Karolina
    Brudzyńska, Patrycja
    Sionkowska, Alina
    Lewandowska, Katarzyna
    Piwowarski, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/27324037.pdf
    Data publikacji:
    2023
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    collagen
    glutaraldehyde
    cross-linking
    polymer films
    marine sources
    kolagen
    biomateriały
    polimery
    Opis:
    Collagen is a valuable biopolymer in many fields, especially in biomedical sciences. Thanks to its biodegradability and high biocompatibility, it is a desirable material for applications that require contact with the human body. There are many sources of collagen, of which marine-origin collagen has become an important one in recent times. Pure collagen has poor stability and is sensitive to the effects of heat and other external factors. The cross-linking process can improve the properties of collagen materials. Many different methods of cross-linking can be distinguished, including chemical ones. In this study, we were concerned to obtain collagen films modified with glutaraldehyde (GTA). The influence of this additive on the chemical, mechanical, swelling, and hydrophilic properties of the biopolymeric matrix was evaluated. Two different concentrations of collagen were used, as well as three different concentrations of GTA. Results of the analysis showed that the properties of the obtained films were affected by the addition of even a small amount of cross-linker. Spectroscopic measurements indicated minor changes that reflect interactions between GTA and the collagen matrix. Mechanical tests showed changes for modified samples in values of tensile strength, breaking force, and elongation at break. The hydrophilicity decreased slightly for films with GTA. The durability of the modified samples in the swelling test increased. Differences between 1% and 2% collagen films with additives were also observed. The GTA-obtained fish collagen films can be promising materials for biomedical applications.
    Źródło:
    Engineering of Biomaterials; 2023, 26, 168; 25--32
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The properties of fish skin collagen films after cross-linking with tannic acid
    Autorzy:
    Sionkowska, Alina
    Lewandowska, Katarzyna
    Szulc, Marta
    Brudzyńska, Patrycja
    Kulka, Karolina
    Piwowarski, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/27324038.pdf
    Data publikacji:
    2023
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    collagen
    biomaterials
    medicine
    wound dressing
    cross-linking
    tannic acid
    kolagen
    biomateriały
    medycyna
    Opis:
    Over the last three decades, an increasing interest in the preparation of new materials for wound healing has been observed. Collagen is a widely used biomaterial, and especially fish skin collagen is more and more popular among scientists. This study aimed to obtain thin films from native fish skin collagen and collagen cross-linked with tannic acid. Infrared spectroscopy, mechanical test, topographic imaging, and swelling test were used to characterize the features of the mentioned films. Statistical evaluation of the results was conducted with the Q-Dixon test. Infrared spectroscopy analysis showed that in the IR spectra of examined biomaterials, there are slight shifts in band positions after tannic acid cross-linking. The mechanical properties of the cross-linked material were different from those of the native collagen film. The Young’s modulus was higher for cross-linked collagen, whereas the elongation at break was lower than for pure collagen. The swelling of the collagen films increased after cross-linking with tannic acid. Swelling tests indicated that collagen cross-linked with tannic acid absorbs more water than before cross-linking. The properties of collagen films were significantly improved after tannic acid cross-linking. All alterations can be a result of collagen cross-linking by tannic acid, probably by forming hydrogen bonds between collagen and tannic acid.
    Źródło:
    Engineering of Biomaterials; 2023, 26, 168; 9--14
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Physico-chemical characterization and biological tests of silk fibroin/collagen/chitosan materials, cross-linked by glyoxal solution
    Autorzy:
    Grabska-Zielińska, Sylwia
    Sionkowska, Alina
    Monteiro, Fernando J.
    Coelho, Catarina C.
    Lewndowska, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/1844925.pdf
    Data publikacji:
    2020
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    biological tests
    compounds
    physico-chemical properties
    testy biologiczne
    kompozyty
    właściwości fizyko-chemiczne
    Źródło:
    Engineering of Biomaterials; 2020, 23, 158 spec. iss.; 20
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of thin films made of chitosan/collagen, potassium silicate and tannic acid on viability of cancer and healthy cells
    Autorzy:
    Miłek, Oliwia
    Kaczmarek, Beata
    Owczarek, Agata
    Nadolna, Kinga
    Kleszczyński, Konrad
    Sionkowska, Alina
    Osyczka, Anna M.
    Powiązania:
    https://bibliotekanauki.pl/articles/284208.pdf
    Data publikacji:
    2019
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Źródło:
    Engineering of Biomaterials; 2019, 22, no.153; 85
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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