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Wyszukujesz frazę "Kucharska, Magdalena" wg kryterium: Autor

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    Wyświetlanie 1-12 z 12
    Tytuł:
    Preparation of micro and nanostructures of chitosan by ultrasonic coalescence of w/o emulsions
    Autorzy:
    Balcerzak, Jacek
    Kucharska, Magdalena
    Gruchała, Bogdan
    Powiązania:
    https://bibliotekanauki.pl/articles/1035322.pdf
    Data publikacji:
    2013
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    chitosan
    microspheres
    nanospheres
    precipitation
    ultrasonic emulsification
    Opis:
    In the paper, the preeliminary study of chitosan micro and nanospheres precipitation due to two reverse emulsions (W/O) coalescence is described. The composition conditions, which must be filled to obtain stable reverse emulsion is pointed out. Furthermore, the parameters of ultrasonic emulsification and coalescence technique are presented and finally, morphological study of obtained micro and nanospheres are discussed.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2013, 18, 18; 13-20
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Studies on the usable properties of innovative wound dressings
    Autorzy:
    Kucharska, Magdalena
    Struszczyk, Marcin H.
    Cichecka, Magdalena
    Brzoza, Kinga
    Powiązania:
    https://bibliotekanauki.pl/articles/1035359.pdf
    Data publikacji:
    2012
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    medical devices.
    microcrystalline chitosan sponges
    preclinical studies
    wound dressings
    Opis:
    The new implemented wound dressings should meet several requirements connected with the clinical safety and performance. The series of PN-EN 13726 Standards describes the tests methods for the verification the most important parameters related to mentioned performance and safety of a new designed wound dressing being the base for the risk analysis (according to PN-EN ISO 14971:2009 Standard). The aim of the research was to evaluate the behavior of several types of new designed prototypes of innovative wound dressings made of various form of chitosan (such as: foams, films, etc.). The behavior of studied chitosan wound dressings was evaluated before and after of accelerated aging according to ASTM F 1980-07:2002 to establish the effect of the wound dressings storing conditions. The presented study is a continuation of earlier research.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2012, 17; 133-140
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary studies on the usable properties of innovative wound dressings
    Autorzy:
    Kucharska, Magdalena
    Struszczyk, Marcin H.
    Cichecka, Magdalena
    Brzoza-Malczewska, Kinga
    Powiązania:
    https://bibliotekanauki.pl/articles/1035473.pdf
    Data publikacji:
    2011
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    medical devices.
    microcrystalline chitosan sponges
    preclinical studies
    wound dressings
    Opis:
    There is endless and growing demand on a novel and innovative wound dressings, which except basic protective performance accelerate the process of wounds healing and/or replace the patient skin function. The studies on the new wound dressings result from the need of the quick and effective treatment of wounds, such as: having no tendency to heal, posttraumatic wounds, scalding wounds, ulcerations or bedsores. Chitosan is a biopolymer originated from chitin by N-acetylation. Due to the special behavior, such as: biological activity, it is linked to polymers having several and multifunctional applications, especially for designing of medical devices. The aim of the research was to evaluate the comprehensive performance of several kinds of chitosan prototypes of innovative wound dressings made of various usable form of chitosan. The evaluation of mentioned prototypes of wound dressing was carried out using the guidelines from series of PN-EN 13726 Standards harmonized with UE Directive 93/42/EEC and 2007/47/WE for medical devices.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2011, 16; 131-138
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    POTENTIAL USE OF CHITOSAN – BASED MATERIALE IN MEDICINE
    Autorzy:
    Kucharska, Magdalena
    Ciechańska, Danuta
    Niekraszewicz, Antoni
    Wiśniewska-Wrona, Maria
    Kardas, Iwona
    Powiązania:
    https://bibliotekanauki.pl/articles/1035560.pdf
    Data publikacji:
    2010
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    biomaterials
    medicine
    polysaccharides
    Opis:
    Polysaccharides are macromolecular polymers that manifest ability toward the forming of fibres, film and coatings. Some of their specific properties like biodegradability and biocompatibility make them suitable for medical application. Chitin, chitosan and alginates are basic polymers mostly used in the preparation of medical biomaterials. In the Institute of Biopolymers and Chemical Fibres (IBWCh) multidirectional investigations are in full swing concerned with the use medical of polysaccharides and their various useful forms. The research includes amongst: multifunctional dressing materials, implants and other polysaccharide biomaterials.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2010, 15; 169-176
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polymer biocomposites used in bedsores treatment
    Autorzy:
    Wiśniewska-Wrona, Maria
    Kucharska, Magdalena
    Kardas, Iwona
    Bodek, Andrzej
    Bodek, Henryka
    Powiązania:
    https://bibliotekanauki.pl/articles/1035413.pdf
    Data publikacji:
    2011
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    bacteriostatic agent
    bedsore
    dressing
    film
    polymeric biocomposites
    Opis:
    Investigations are presented in the preparation of composite dressing material based on two biopolymers -chitosan and sodium alginate with the addition of sulfanilamide as medication designed for the healing of bedsores. The dressing was prepared in the form of film. The biopolymers used in the construction of the film make the dressing biodegradable and resorbable in the wound’s environment. Mechanical properties of the film were tested: thickness, extension strength, tenacity and elongation at maximum stress The ability of the material to match the wound was examined, too, as well as the transmission of water vapor. Sulfanilamide as bacteriostatic agent was added to the prepared composites. Mechanical and sorption properties of the composite dressings with addition of the active substance depend largely on their composition. The sorption properties were tested before and after addition of the medication .The release of the medication is intricate and proceeds according to kinetics of first order. Susceptibility of the composite materials to hydrolytic and enzymatic degradation was assessed.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2011, 16; 111-120
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The role of oligochitosans in akt kinase regulation
    Autorzy:
    Ignacak, Jan
    Wiśniewska-Wrona, Maria
    Dulińska-Litewka, Joanna
    Pałka, Iwona
    Kucharska, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/1034912.pdf
    Data publikacji:
    2015
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    Akt kinase – PKB
    EAT cells proliferation
    HIF-1 factor.
    M2 pyruvate kinase
    Opis:
    Among characteristic properties of cancers, there is their increased glycolytic activity.Contrary to normal cells, neoplastic cells use anaerobic glycolysis, even when a sufficient amount of oxygen is available. The intensity of the process is associated with a considerable demand for energy in the form of ATP. Akt, which - acting through the mTOR pathway - activates the HIF-1 factor, which in turn activates hexokinase that participates in glucose phosphorylation, stimulates the transport of glucose to cells via increasing glucose transporters (GLUT) and activates lactate dehydrogenase (which transforms pyruvate to lactate). Chitosan, as well as products of its degradation - oligochitosans - contribute to inhibiting the activity of the Akt kinase, and thus contribute to inhibiting excessive glycolytic activity of Ehrlich ascites tumor (EAT) cells and to decreasing proliferation of these cells.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2015, 20; 73-81
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Inhibition of ehrlich ascites tumour (eat) cells proliferation through chitosan-mediated regulation of activity of the akt pathway
    Autorzy:
    Ignacak, Jan
    Wiśniewska-Wrona, Maria
    Dulińska-Litewka, Joanna
    Pałka, Iwona
    Kucharska, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/1035195.pdf
    Data publikacji:
    2014
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    Akt kinase - PKB
    EAT cells proliferation
    M2 pyruvate kinase
    chitosan
    Opis:
    Isoenzyme M2 pyruvate kinase, which is a marker of cancer transformation, can take both tetramer (cytosol) and dimer (nucleus) forms. The former is responsible for ATP synthesis, and the latter demonstrates histone H1 kinase activity. Regulation of the expression of pyruvate kinase through which Akt controls the expression of genes involved in Ehrlich ascites tumour (EAT) cell proliferation, migration and death, also involves cross-talk with the other signalling pathways, transcription factors and co-regulatory proteins such as β-catenin and c-Myc. Treatment of EAT cells with chitosans significantly reduced their proliferation (by 45-60%), expression of nuclear β-catenin, c-Myc as well as cell migration. After 48–72 hours of treatment of the cell with oligochitosans, lower levels of p-Akt were detected. Simultaneously, decreased expression of isoenzyme M2 PK protein levels was observed. The dimeric form (nucleus) can participate in H1 histone phosphorylation, which contributes to increased EAT cell proliferation.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2014, 19; 33-40
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The role of chitosan in akt kinase regulation activity
    Autorzy:
    Ignacak, Jan
    Wiśniewska-Wrona, Maria
    Dulińska-Litewka, Joanna
    Pałka, Iwona
    Kucharska, Magdalena
    Kazimierski, Jan
    Powiązania:
    https://bibliotekanauki.pl/articles/1034695.pdf
    Data publikacji:
    2016
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    Akt kinase (PKB)
    M2 pyruvate kinase
    cells migration
    metalloproteinases
    Opis:
    A decrease in migration of tumor cells incubated with the investigated chitosan preparations was correlated with a decreased activity of MMP-2 and MMP-9 metalloproteinases, what significantly affected inhibition of tumor cell proliferation. In the investigations of the effects of various chitosan preparations on expression of PCNA, Akt and β-catenin in the normal human 184A1 cells and in breast carcinoma MCF7 cells evaluated at the protein level, significant differences in inhibition of expression of selected genes were noted in the tumor cells. Similarly as in the case of human cells, in mouse cells, the differences in expression of the investigated genes involved solely the Ehrlich carcinoma cells. In the presence of the investigated chitosan preparations, there was observed inhibition of expression of the N-cadherin, β-catenin, Akt and PCNA genes. In case of p21 protein, its level increased, similarly as in the human breast carcinoma cells, what may also be related to phosphorylation of the protein, its capture by the cytosol and prolonging its half-life as compared to the non-phosphorylated form. In case of the normal human 181A1 cells and mouse CRL 1636 cells, no significant alterations were noted in expression of the investigated genes in presence of the employed chitosan preparations.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2016, 21; 73-82
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Advanced cellulosic materials
    Autorzy:
    Brzoza-Malczewska, Kinga
    Kucharska, Magdalena
    Wiśniewska-Wrona, Maria
    Guzińska, Krystyna
    Jóźwicka, Jolanta
    Bacciarelli-Ulacha, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/1034809.pdf
    Data publikacji:
    2015
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    cellulosicproducts
    chitosan
    complex chitosan/alginate
    nanoparticles
    Opis:
    Aim of the work was to prepare a method of producing chitosan and chitosan-alginate nanoparticles designed for the modification of textile cellulosic products in hygiene and medical application. Spectrophotometry was used in the estimation of the prepared nanoparticles; analyzed, too, was the particle size and antibacterial and antifungal activity.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2015, 20; 7-17
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Utilization of biodegradable polymers for peripheral nerve reconstruction
    Autorzy:
    Kardas, Iwona
    Marcol, Wiesław
    Niekraszewicz, Antoni
    Kucharska, Magdalena
    Ciechańska, Danuta
    Wawro, Dariusz
    Lewin-Kowalik, Joanna
    Właszczuk, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/1035488.pdf
    Data publikacji:
    2010
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    biodegradable nerve guides
    nerve reconstruction
    polysaccharides
    Opis:
    Peripheral nerve injuries are one of frequent cause of disability. Results of surgical procedures are not still completely satisfactory, though fast development of microsurgical technician improve their efficiency. One of the major problems in surgical treatment of the peripheral nerve injuries is ends coaptation in the case of large loss of nerve tissue. And so finding substitute implants not rejected by the organism for the recipient and providing with the success is necessary of regeneration. Recently, several synthetic nerve guide implants have been introduced and approved for clinical use to replace autologous transplants. This alternative therapy is based on pioneering studies with experimental nerve guides. This paper present a review of published studies involving biodegradable nerve guides.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2010, 15; 159-168
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Haemostatic, resorbable dressing of natural polymers - hemoguard
    Autorzy:
    Kucharska, Magdalena
    Wiśniewska-Wrona, Maria
    Brzoza-Malczewska, Kinga
    Struszczyk, Marcin H
    Cichecka, Magdalena
    Wilbik-Hałgas, Bożena
    Rybak, Zbigniew
    Szymonowicz, Maria
    Paluch, Danuta
    Guzińska, Krystyna
    Kaźmierczak, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/1035068.pdf
    Data publikacji:
    2015
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    biological and useful properties
    haemostatic
    natural polymers
    Opis:
    Investigations are presented in the preparation of a first aid haemostatic dressing that would exhibit an adequate haemostatic capacity in injuries and surgical wounds, an antibacterial activity to prevent primary and secondary infections, and offer safety in use
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2015, 20; 130-141
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tromboguard® - first aid wound dressing
    Autorzy:
    Kucharska, Magdalena Kucharska
    Struszczyk, Marcin H.
    Niekraszewicz, Antoni
    Ciechańska, Danuta
    Witczak, Elżbieta
    Tarkowska, Sylwia
    Fortuniak, Krystyna
    Gulbas-Diaz, Anna
    Rogaczewska, Agnieszka
    Płoszaj, Ilona
    Pluta, Aleksandra
    Gąsiorowski, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/1035453.pdf
    Data publikacji:
    2011
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    medical devices.
    microcrystalline chitosan sponges
    preclinical studies
    wound dressings
    Opis:
    Recently, the market of medical devices shows serious need for wound dressings for first aid and temporary traumatic wounds. Such a wound dressing should show primarily the hemostatic effect and antibacterial activity allowing protection against infection. Tromboguard® topical wound dressing is a three-layer dressing with active layer. It contains chitosan, sodium alginate/calcium alginate with addition of silver salt. The wound dressing provides protective performance as well as is characterized by the ability to immediately stop bleeding and antibacterial activity allowing protection against infection and occurrence of secondary infection without the need for or with limited participation of antibiotics. Tromboguard® topical wound dressing is a firs aid dressing designed for the uniform services (military and homeland) and rescue.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2011, 16; 121-130
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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