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Wyświetlanie 1-15 z 31
Tytuł:
Immobilization of collagen - an effective method of improving cell adhesion on polymeric materials
Autorzy:
Pamuła, E.
Ścisłowska-Czarnecka, A.
Powiązania:
https://bibliotekanauki.pl/articles/284946.pdf
Data publikacji:
2007
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
polimery
polymers
Opis:
Surface properties of poly(L-lactide-co-glycolide) (PLG), and two reference materials: hydrophobic polystyrene (PS) and hydrophilic tissue culture polystyrene (TCPS) were modified by collagen adsorption. The morphology of the obtained collagen film was observed by using atomic force microscopy. On PLG and TCPS collagen layer was uniform, while on PS collagen formed isolated patches. The differences in supramolecular organization of collagen were due to differences in surface wettability. The behaviour of L929 fibroblasts incubated on all raw and collagen-modified surfaces was then evaluated. The best adhesion and spreading of cells, as expected, were observed on TCPS. Collagen adsorbed on PLG and PS considerably improved adhesion and spreading of fibroblasts.
Źródło:
Engineering of Biomaterials; 2007, 10, no. 63-64; 20-23
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface modifications of biomaterial with different cold plasma reactors to improve cell adhesion
Autorzy:
Terebun, Piotr
Kwiatkowski, Michał
Zarzeczny, Dawid
Pawłat, Joanna
Wójcik, Michał
Trzaskowska, Marta
Kazimierczak, Paulina
Przekora, Agata
Powiązania:
https://bibliotekanauki.pl/articles/2172008.pdf
Data publikacji:
2022
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
curdlan
agarose
gliding arc discharge reactor
dielectric barrier discharge plasma jet
dielectric barrier discharge surface reactor
surface modification
Opis:
There is a growing trend in the engineering of biomaterials, focusing on surface modifications of biomaterials to improve their mechanical strength, corrosion resistance, and biological properties. Cold plasma treatment may improve biological properties of biomaterials for biomedical applications by enhancing their integration with host tissue. This study investigated the influence of different cold plasma treatments on the surface properties of a polysaccharides- -based biomaterial to improve cell adhesion to its surface. The samples were subjected to plasma treatment using three different reactors operating at atmospheric pressure: gliding arc discharge (GAD) reactor, dielectric barrier discharge (DBD) plasma jet, and DBD surface reactor. Next, surface chemistry of the biomaterial after plasma treatment was determined by ATR-FTIR analysis. Furthermore, a cell adhesion assay on the samples was carried out using normal human skin fibroblasts (BJ cell line). The attenuated total reflection Fourier transform infrared analysis (ATR- -FTIR) showed that new potential functional groups could be formed on the material surface after plasma treatment. However, plasma treatment of the samples did not enhance cell adhesion to the surface of the polysaccharides-based biomaterial. Thus, the obtained results indicate that plasma treatment using GAD reactor, DBD plasma jet, and DBD surface reactor was not effective for surface modification and cell responses.
Źródło:
Engineering of Biomaterials; 2022, 25, 165; 2--6
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shape memory process in resorbable polymers: effect on surface properties and cell adhesion
Autorzy:
Costa, A. M.
Ferreira, A. S.
Posadowska, U.
Krok, M.
Smola, A.
Dobrzyński, P.
Pamuła, E.
Powiązania:
https://bibliotekanauki.pl/articles/286068.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
shape memory
PLGA
tissue regeneration
foil
Opis:
The objectives of this study were to confirm the shape memory behavior of two new bioresorbable terpolymers (L-lactide, glycolide, and trimethylene carbonate: L-PLGTMC and B-PLGTMC), to follow the influence of the shape memory process on their surface properties and to test their cytocompatibility using osteoblast-like cells. For this purpose, foils of both terpolymers were prepared. The terpolymers' ability to recover up to 92-93% of the memorized shape within 10 seconds was obtained. The influence of shape memory process on the surface properties was assessed by water contact angle (WCA) measurement and atomic force microscopy (AFM) and the results suggested that both terpolymers preserved the hydrophilicity after recovery and also that B-PLGTMC polymer was rougher than L-PLGTMC (about 9 folds more). The AFM pictures showed the presence of spherical shape hills on the B-PLGTMC foil surface which after the stretching procedure became oriented toward the direction of the applied load. The terpolymers were seeded on both sides (Top and Bottom faces) with human MG63 osteoblast-like cells. Cell viability was assessed after 1, 3 and 7 days, using MTT assay. Results revealed an increasing number of metabolically active cells with the incubation time, suggesting, together with nitric oxide (NO) level determination, the cytocompatibility of both terpolymers. Cell spreading and morphology were investigated by H&E staining and obtained results corresponded well with ones of MTT and NO.
Źródło:
Engineering of Biomaterials; 2012, 15, 114; 8-11
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cell adhesion on spin-coated poly(butylene succinate-co-dilinolene succinate) (PBS-DLS) copolyesters
Autorzy:
Kantor-Malujdy, Nina
Sokołowska, Martyna
Sobolewski, Peter
El Fray, Miroslawa
Powiązania:
https://bibliotekanauki.pl/articles/1844798.pdf
Data publikacji:
2021
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Źródło:
Engineering of Biomaterials; 2021, 24, 163; 57
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dexamethasone inhibits U937 cell adhesion via the down-regulation of ROCK1 activity
Autorzy:
Liu, Dong
Chen, Xing
Xiong, Ren
Ning, Ya
Li, Ping
Peng, Yan
Liu, Ping
Zhao, Yan
Yang, Nan
Zhou, Yuan
Powiązania:
https://bibliotekanauki.pl/articles/1039650.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
dexamethasone
ROCK1
fasudil
non-genomic effects
Opis:
Objective. To explore the effect of dexamethasone (DEX) on monocyte adhesion function and its underlying mechanism. Methods. The effects of DEX and fasudil on adhesion of cultured U937 monocytes to human umbilical vein endothelial cells (HUVEC) following stimulation with phorbol myristate acetate (PMA) were studied; Changes in the Rho-associated coiled-coil protein kinase 1 (ROCK1) protein content and activity were evaluated. Results. DEX and fasudil significantly inhibited U937 cell adhesion rates under PMA stimulation and inhibited ROCK1 activity. Mifepristone (RU-486) and cycloheximide (CHX) did not alter these effects of DEX. Conclusions. DEX interferes with the adhesion function of U937 cells through the inhibition of ROCK1 activity.
Źródło:
Acta Biochimica Polonica; 2012, 59, 4; 557-560
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The viability and intestinal epithelial cell adhesion of probiotic strain combination - in vitro study
Autorzy:
Piatek, J.
Gibas-Dorna, M.
Olejnik, A.
Krauss, H.
Wierzbicki, K.
Zukiewicz-Sobczak, W.
Glowacki, M.
Powiązania:
https://bibliotekanauki.pl/articles/52041.pdf
Data publikacji:
2012
Wydawca:
Instytut Medycyny Wsi
Opis:
To be effective, probiotic bacteria must exhibit a number of functional characteristics, including the resistance to gastric acidity and the ability to adhere to the intestinal epithelium. In this study, we examined in vitro the viability of lactic acid bacteria (LAB) combination after exposure to low pH, and the adhesion of LAB to Caco-2 cells during coincubation of 9 bacterial strains. To test bacterial viability, 6 commercially available products were incubated in 0.1 N HCl at pH 1.2 for 60 min. The greatest growth inhibition was noted for the non-capsulated product containing the Lactobacillus rhamnosus strain (log reduction of CFU = 6.4), and the best survival observed for the product containing 9 bacterial strains, equipped with a modern capsule made according to the Multi-Resistant Encapsulation technology (log reduction of CFU = 0.1). In the adhesion experiment, the combination of 9 bacterial strains was added to 17-day-old Caco-2 cell culture for 90 min. The greatest efficiency of adhesion was observed for the inoculum containing 5.5 × 108 CFU/mL/9.6 cm2 of Caco-2 and the dose of probiotic bacteria of 190 cells per one Caco-2 cell. As a result, approximately 157 bacterial cells adhered to one Caco-2 cell. The results indicate that the combination of 9 bacterial strains in the examined product is characterized as highly adhesive.
Źródło:
Annals of Agricultural and Environmental Medicine; 2012, 19, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of cell adhesion molecule in cancer progression and its application in cancer therapy.
Autorzy:
Okegawa, Takatsugu
Pong, Rey-Chen
Li, Yingming
Hsieh, Jer-Tsong
Powiązania:
https://bibliotekanauki.pl/articles/1043281.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cancer gene therapy
gene
cell adhesion molecules
tumor progression
tumor suppressor
Opis:
Multiple and diverse cell adhesion molecules take part in intercellular and cell-extracellular matrix interactions of cancer. Cancer progression is a multi-step process in which some adhesion molecules play a pivotal role in the development of recurrent, invasive, and distant metastasis. A growing body of evidence indicates that alterations in the adhesion properties of neoplastic cells play a pivotal role in the development and progression of cancer. Loss of intercellular adhesion and the desquamation of cells from the underlying lamina propria allows malignant cells to escape from their site of origin, degrade the extracellular matrix, acquire a more motile and invasion phenotype, and finally, invade and metastasize. In addition to participating in tumor invasiveness and metastasis, adhesion molecules regulate or significantly contribute to a variety of functions including signal transduction, cell growth, differentiation, site-specific gene expression, morphogenesis, immunologic function, cell motility, wound healing, and inflammation. Cell adhesion molecule (CAM), a diverse system of transmembrane glycoproteins has been identified that mediates the cell-cell and cell-extracellular matrix adhesion and also serves as the receptor for different kinds of virus. We summarize recent progress regarding the role of CAM, particularly, immunoglobulin-CAMs and cadherins in the progression of cancer and discuss the potential application of CAMs in the development of cancer therapy mainly on urogenital cancer.
Źródło:
Acta Biochimica Polonica; 2004, 51, 2; 445-457
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cell adhesion molecules and their possible role in the pathology of the peripheral nerves – a review of the literature
Autorzy:
Niezgoda, Adam
Powiązania:
https://bibliotekanauki.pl/articles/552657.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Przyjaciół Medycyny Rodzinnej i Lekarzy Rodzinnych
Tematy:
cell adhesion molecules
demyelination
polyneuropathies.
Źródło:
Family Medicine & Primary Care Review; 2015, 4; 323-326
1734-3402
Pojawia się w:
Family Medicine & Primary Care Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polish Artificial Heart - new coatings, technology, diagnostics
Autorzy:
Sarna, J.
Kustosz, R.
Major, R.
Lackner, J.
Major, B.
Powiązania:
https://bibliotekanauki.pl/articles/200025.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
pulsed laser deposition
microstructure
cell adhesion
Opis:
Since 1991, the Foundation for Cardiac Surgery Development in Zabrze has been implementing research on the artificial heart. In 1995, an artificial ventricle, POLVAD, was implanted to a patient, and in 1998, the prototype of a clinical controller, POLPDU-401, was created. A further development of the studies on an implantable artificial heart requires an integrated approach and an application of advanced methods of materials sciences in order to develop new materials suitable for the contact with blood, as well as to apply a multilateral biomedical diagnostics in hydrodynamic conditions. The estimation of the cell–material interaction plays an important role in the biomaterial design. An analysis of the influence of the carbon content in titanium nitride on the biological and biophysical properties of biomaterial coatings was studied. The cell-material reactions were considered in dynamic and static conditions. Three groups of materials were under examinations – titanium nitride (TiN), as well as titanium carbonitride with a low and high carbon content – of which the best properties were observed for TiN. We found a strong influence of the stoichiometry of TiN (atomic ratio of Ti/N) on the biocompatibility. A non-stoichiometric TiN could have a negative influence on the surrounding tissue.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2010, 58, 2; 329-335
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pro-angiogenic effects of X-rays on murine endothelial cells
Autorzy:
Lisiak, E.
Dziekiewicz, M.
Meineke, V.
Bilski, M.
Janiak, M.
Powiązania:
https://bibliotekanauki.pl/articles/147804.pdf
Data publikacji:
2005
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
angiogenesis
ionizing radiation
cell adhesion
integrins
Opis:
Recently, significant attention has been paid to the possibility of thwarting cancer progression by inhibition of neoangiogenesis (formation of new blood vessels) in growing tumors. Although general mechanisms of angiogenesis have been elucidated, virtually nothing is known about the effects of low doses of ionizing radiation on pro-angiogenic properties of endothelial cells. In the present study, we evaluated the effects of a low (0.2 Gy), intermediate (1 Gy), and high (4 Gy) doses of X-rays on a few angiogenesis-related parameters of isolated murine endothelial cells. We show here that 24 to 48 hours after irradiation with 0.2 Gy the cell proliferation was inhibited to a similar extent as after the exposure to 1 Gy. Also, adhesion of the 0.2 Gy-irradiated cells to both gelatin and MatrigelŽ was inhibited 24 hours post-exposure, whereas irradiation with 1 or 4 Gy resulted in the increased adhesion of the cells to these substrata. Similar effects were observed during the "wound" migration assay. Finally, 24 hours after exposure of the cells to 0.2 Gy of X-rays, the surface expression of the â3 integrin subunit was down-regulated, whereas irradiations with 1 and 4 Gy of X-rays resulted in the significantly elevated expression of this subunit. These results indicate that proliferating endothelial cells are sensitive in vitro to relatively low doses of ionizing radiation
Źródło:
Nukleonika; 2005, 50,suppl.2; 17-20
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molekularne czynniki adhezyjne w szerzeniu się nabłonkowego raka jajnika
Role of molecular adhesion factors in the spread of epithelial ovarian cancer
Autorzy:
Waksmański, Bogdan
Olejek, Anita
Powiązania:
https://bibliotekanauki.pl/articles/908240.pdf
Data publikacji:
2006
Wydawca:
Medical Communications
Tematy:
FAK
cadherins
cell adhesion
epithelial ovarian carcinoma
Opis:
The process of spread of epithelial ovarian cancer is associated with molecular mechanisms including cellular surface receptors, basal membrane components, intercellular adhesion molecules and cell-derived signals. The key role in cellular adhesion and its motility is played by E-cadherin and catenins. Expression of the cadherin – catenin complex decreases in parallel with progressing clinical stage of ovarian cancer. At the same time, re-expression of this complex is associated with dissemination of the neoplasm over peritoneal surface. Changing expression or dysfunction of receptors for integrins and their association with molecules of extracellular matrix (ECM) is closely correlated with tumour progression and/or its metastatic potential. The lysophosphatidic acid mediates laminin-dependant migration of cells by the autocrine local mechanism. The first step in formation of metastases is degradation of collagen type IV, as well as activation of metalloproteinases and pro-angiogenic factors, whose increased expression is seen in ovarian cancer cells. Adhesion contact kinase (FAK) is crucial for migration of neoplastic cells, inversely dependant on growth factors and integrin receptors. Increased expression of this kinase is associated with statistically significant with higher clinical stage of the tumour, presence of metastases in lymph nodes and distant metastases. The basic prerequisite for formation of metastases is derangement of cell adhesion mechanism, inducing loss of adhesion between cells and between cells and extracellular matrix. This mechanism is crucial in the spread of ovarian cancer throughout the abdominal cavity.
Proces szerzenia się nabłonkowego raka jajnika jest związany z mechanizmami molekularnymi obejmującymi receptory powierzchni komórki, składnikami błony podstawnej, międzykomórkowymi cząsteczkami adhezyjnymi oraz sygnałami pochodzącymi od komórki. Podstawową rolę w adhezji komórki i jej ruchliwości pełnią E-kadheryna oraz kateniny. Ekspresja kompleksu kadheryna – kateniny zmniejsza się wraz z postępującym stopniem zaawansowania klinicznego raka jajnika. Jednocześnie występuje reekspresja tego układu w przypadku rozsiewu procesu nowotworowego na powierzchni otrzewnej. Zmieniająca się ekspresja lub nieprawidłowe działanie receptorów integryn i ich związek z cząsteczkami macierzy zewnątrzkomórkowej ECM wykazuje ścisłe połączenie z postępem rozwoju guza lub potencjałem przerzutu. Kwas lizofosfatydowy pośredniczy w zależnej od laminin migracji komórek w autokrynnym mechanizmie lokalnym. Pierwszym krokiem w procesie tworzenia przerzutów jest degradacja kolagenu typu IV z działaniem metaloproteinaz oraz czynników proangiogennych, których zwiększona ekspresja jest obserwowana w komórkach raka jajnika. Kinaza kontaktów adhezyjnych FAK pełni podstawową rolę w migracji komórek nowotworowych ujemnie zależnych od czynników wzrostu oraz receptorów integryn. Zwiększona ekspresja tej kinazy wiąże się istotnie statystycznie z wyższym stopniem zaawansowania klinicznego guza, obecnością przerzutów w węzłach chłonnych i obecnością odległych przerzutów. Podstawowym wstępnym warunkiem powstania przerzutu jest zaburzenie mechanizmu adhezji komórki, co w konsekwencji indukuje zmiany w przyleganiu między komórkami oraz komórkami a macierzą zewnątrzkomórkową. Mechanizm ten ma podstawowe znaczenie w szerzeniu się raka jajnika w obrębie jamy brzusznej.
Źródło:
Ginekologia Onkologiczna; 2006, 4, 3; 193-201
1731-5379
Pojawia się w:
Ginekologia Onkologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ruch pod mikroskopem - współczesne techniki badania adhezji i ruchliwości komórek
Motion under the microscope - modern techniques for studying cell adhesion and motility
Autorzy:
Pomorski, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/1192766.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Przyrodników im. Kopernika
Opis:
Ruch komórek jest jedną z ich fundamentalnych cech. To dzięki niemu organizm może się rozwijać, układ odpornościowy działać, organy regenerować, a rany goić się. Badanie mechanizmów ruchu jest jednak jedną z trudniejszych metodycznie dziedzin biologii komórki. Procesy biochemicznie zachodzą bowiem w ruchliwych komórkach niesynchronicznie, a często takich komórek jest niewiele. Niniejszy artykuł poświęcono metodom mikroskopowym stworzonym by rozwiązać ten problem. Omawiane są metody pomiaru parametrów ruchu i adhezji do podłoża. Omawiane są również podstawy zastosowania klasycznych metod mikroskopowych do badania procesów ruchowych. Pokrótce wspominamy też o wykorzystaniu sond molekularnych do badania procesów sygnalizacji w komórkach ruchliwych, a także o mikroskopowych metodach eksperymentalnych, umożliwiających doświadczenia na pojedynczych komórkach.
Ability to move is one of the fundamental functions of the living cells. It is due to the motility that organism develops, immune system can work, organs are able to regenerate and wound heal. In the same time motility studies are among methodologically most difficult ones. Biochemical processes underlying motility are notoriously unsynchronized and motile cells are usually not very numerous. Current paper reviews microscope techniques developed to solve those problems. We discuss basic measurements, parameterizing motility and substratum adhesion. Classical, structural microscopy used for motility studies are also sketched shortly. We describe also use of molecular probes for signaling studies in motile cells as well as we mention about microscopic experimental techniques, allowing experiments on single cells.
Źródło:
Kosmos; 2013, 62, 2; 181-192
0023-4249
Pojawia się w:
Kosmos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of surface topography and morphology of PU/PLA films on fibroblasts performance
Autorzy:
Bednarz, P.
Krok, M.
Laska, J.
Powiązania:
https://bibliotekanauki.pl/articles/285206.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
contact angle
roughness
morphology
cell adhesion
fibroblasts
Źródło:
Engineering of Biomaterials; 2012, 15, no. 116-117 spec. iss.; 120-122
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrin αv signaling influences phenotype and maturation of primary human osteoblasts on alumina surface
Autorzy:
Wróbel, E.
Witkowska-Zimny, M.
Mrówka, P.
Głodkowska-Mrówka, E.
Powiązania:
https://bibliotekanauki.pl/articles/284664.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
integrin
human bone-derived cells
osteogenic differentiation
cell adhesion
biomaterial
Opis:
Due to the growing interest in stem cells application in tissue engineering the better understanding of primary human osteoblasts behavior in vitro, on biomaterial surface, is required. Among other molecules integrins may be taken into account as being involved in these phenomena. Integrins are a family of cell adhesion receptors, which may regulate many cellular functions e.g., adhesion, motility, phenotype and cell maturation. The aim of this study was to determine the effect of the biomaterial surfaces and αv integrin signaling pathway on the behavior, phenotype and maturation of human osteoblasts in vitro. Human bone derived cells (HBDCs) obtained from adult femoral bone fragments were cultured on both alumina disks and tissue culture polystyrene (TCPS) dishes. After 7, 14, and 21 days of culture, localization and mRNA expression level of αv integrin subunits and BGLAP (osteocalcin) on polystyrene were analyzed in addition, we treated the cell cultures with monoclonal antibodies against human αv integrin to block its ligand-binding activity, on both alumina and TCPS substrates. We found that the αv integrin was present in focal contacts and cell cytoplasm at subsequent stages of cell maturation and the level of αv integrin mRNA was the highest in mature osteoblasts. Blocking αv integrin transduction pathway caused changes in cell activity and morphology, decreased cells proliferation on TCPS and reduced expression of alkaline phosphatase (ALP) on both materials. The results suggest that αv integrin is involved as an important receptor facilitating osteogenic differentiation.
Źródło:
Engineering of Biomaterials; 2014, 17, 127; 33-39
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 31

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