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    Wyświetlanie 1-8 z 8
    Tytuł:
    Bioactivity assessment of ceramic nanoparticels used as a filler in nanocomposite materials
    Autorzy:
    Gęgotek, K.
    Zych, Ł.
    Stodolak-Zych, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/285902.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    nanocomposite
    bioactivity
    scaffolds
    regenerative medicine
    bioceramics
    zeta potential
    Opis:
    The paper presents research on degree of bioactivity of nanometric ceramic particles used as a nanofiller in nanocomposite materials based on polymers. The nanoperticles used in our examination were: different bioceramics powders such as: hydroxyapatite (HAp), β-phosphate (V) calcium (βTCP), silica (SiO2) and bioglass (BG). Based on ζ-potential measurements dynamics of processes occurring on the surface of nanoparticles in stimulated body fluid (SBF) was determined and it confirmed possibility of apatite formation. This study showed predominance of bioglass over other bioceramic materials, Bioglass nanoparticles were the most bioactive ones. In the end of the experiment the bioacermic particles were used as a nanofiller of poli-L/DL-lactide (PLDLA) matrix composites. The composite materials were prepared by casting from solution. Bioactivity tests were performed in simulated body fluid (artificial plasma of various ions concentration, and SBF 2SBF). Based on surface microstructure observed in the SEM (EDS) analysis were confirmed the degree of bioactivity of various materials depending on the type nanofiller.
    Źródło:
    Engineering of Biomaterials; 2013, 16, no. 122-123 spec. iss.; 73-74
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chitosan-based nanocomposites as potential materials for nerve regeneration
    Autorzy:
    Turek, A.
    Dudziński, K.
    Stodolak-Zych, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/284042.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    nanocomposites
    chitosan
    carbon fillers
    guided nerve regeneration (GNR)
    Opis:
    The nanocomposite material based on chitosan was obtained and characterized. Commercially produced biopolymer at 85% deacetylization degree was used. The biopolymer matrix was modified with carbon nanofillers such as graphite oxide (GO), carbon nanotubes (CNTs) and nanontubes with the surface affected by carboxyl groups (CNT-COOH). The obtained nanocomposites were formed by means of two methods: casting (to manufacture nanocomposite foils) and liofilization (to manufacture porous nanocomposite materials). Their electrical properties and microstructure were examined. The tests proved that adding the carbon nano-filler results in high resistivity (graphite foils, carbon nanotubes) and also the average size of pores in liofilized materials. Additionally, the electric potential of the materials may be improved by surface processing (EPD- electrophoretic deposition). The described materials are an alternative to polymer nerve implants e.g. tubes or hydrogels which are already present on the market and applied to regenerate nerves.
    Źródło:
    Engineering of Biomaterials; 2014, 17, no. 128-129; 86-87
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of durability of resorbable polymer pins in in vitro and in vivo conditions: preliminary study
    Autorzy:
    Stodolak-Zych, E.
    Pałka, K.
    Szponder, T.
    Nowicka, K.
    Błażewicz, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/284181.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    meniscus
    bone pins
    polylactide
    regeneration
    Opis:
    The work focuses on polymeric cartilage/bone pins (pegs) that were manufactured and tested to assess their application in meniscus injuries. The bone pins measuring 1,2 and 4 mm in diameter were produced from certified resorbable PLDLA by means of hot pressing (at 126oC). In order to establish the material characteristics, tests of mechanical properties, structural testing and stability tests were performed in vitro (an immersion medium: water/PBS buffer). It was established that after three months of incubation the initial implant’s bending strength (120 MPa) decreased by 35%, whereas its tensile strength (52 Pa) weakened by 60%. The degree of degradation did not affect the pH of the immersion fluid. The observed physical changes of the implant, such as: the mass decrease, the change of shape, the increase of crystallinity (DSC/TG), the number of polymer terminal groups (-OH, -COOH), proved the advanced degradation process of PLDLA pins. Implants of particular behaviour were inoculated into the tibia of a New Zealand rabbit. In vivo tests were conducted to confirm the changes observed in vitro. Monitoring of the degradation process was performed after three months following the implantation by means of control X-ray and computed microtomography (μCT).
    Źródło:
    Engineering of Biomaterials; 2014, 17, no. 128-129; 87-89
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A revised surgical concept of anterior cruciate ligament replacement in a rabbit model : preliminary investigations
    Autorzy:
    Ficek, K.
    Wieczorek, J.
    Stodolak-Zych, E.
    Kosenyuk, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/284158.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    ACL reconstruction
    tendon implant
    resorbable material
    Opis:
    In this project the anterior cruciate ligament (ACL) replacement in a rabbit model was performed for the preclinical phase of investigations of a new form of biomaterial i.e. polymer beads (granules). This material, based on resorbable aliphatic polyester (polylactide - PLA) was used as a filler of the bone tunnels to enhance tendon-to-bone healing. The high specific surface area and well known biocompatibility of this material designated it as an osteoconductive agent in reconstructive ligament surgery. Additionally, a new surgical concept was proposed which retains the natural elasticity of the harvested tendon. This method ensures fixation of the grafted tendon within the bone tunnels in their entire length.
    Źródło:
    Engineering of Biomaterials; 2012, 15, 113; 33-34
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of repair of osteochondral defects in rabbits using new composite biomaterials during three-month observation
    Autorzy:
    Żylińska, B.
    Stodolak-Zych, E.
    Nowicka, K.
    Silmanowicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/284436.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    osteochondral defects
    regenerative medicine
    scaffolds
    hydroksyapatite
    alginate
    Opis:
    In this work nanocomposite porous pins were implanted into rabbit knees. The pins were made of biodegradable synthetic poly-L/DL-lactide (80:20) which was modified with nanometric hydroksyapatite particles (HAp) and covered with biopolymer layer of sodium alginate (NA). In vivo experiments were conducted on a 4-element group of the New Zealand rabbits. Osteogenesis was observed using scanning electron microscope (SEM/EDS) after 12 weeks of implantation.
    Źródło:
    Engineering of Biomaterials; 2012, 15, no. 116-117 spec. iss.; 118-119
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of repair of osteochondral defects in rabbits using new composite biomaterials during three-month observation
    Autorzy:
    Żylińska, B.
    Stodolak-Zych, E.
    Nowicka, K.
    Silmanowicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/285641.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    osteochondral defects
    regenerative medicine
    scaffolds
    hydroksyapatite
    alginate
    Opis:
    In this work nanocomposite porous pins were implanted into rabbit knees. The pins were made of biodegradable synthetic poly-L/DL-lactide (80:20) which was modified with nanometric hydroksyapatite particles (HAp) and covered with biopolymer layer of sodium alginate (NA). In vivo experiments were conducted on a 4-element group of the New Zealand rabbits. Osteogenesis was observed using scanning electron microscope (SEM/EDS) after 12 weeks of implantation.
    Źródło:
    Engineering of Biomaterials; 2012, 15, no. 116-117 spec. iss.; 141-143
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Elektroforetyczne osadzanie hydroksyapatytu na powierzchni stopów NiTi wykazujacych pamięć kształtu
    Electrophoretic deposition of hydroxyapatite coatings on NiTi shape memory alloy
    Autorzy:
    Goryczka, T.
    Szaraniec, B.
    Dudek, K.
    Zych, Ł.
    Freitag, M.
    Lelątko, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/285852.pdf
    Data publikacji:
    2011
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    hydroksyapatyt
    pamięć kształtu
    biomateriały
    hydroxyapatite
    shape memory
    biomaterials
    Źródło:
    Engineering of Biomaterials; 2011, 14, no. 106-108; 124-128
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Halloysite nanotubes as potential carrier for gentamicin
    Autorzy:
    Stodolak-Zych, E.
    Skóra, K.
    Rapacz-Kmita, A.
    Mikołajczyk, M.
    Gajek, M.
    Bućko, M. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/284115.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    nanotubes
    gentamicin
    drugs
    Źródło:
    Engineering of Biomaterials; 2018, 21, 148; 93
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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