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Full-Text Articles in Life Sciences
Collagen/Peo/Gold Nanofibrous Matrices For Skin Tissue Engineering, Ömer Aktürk, Di̇lek Keski̇n
Collagen/Peo/Gold Nanofibrous Matrices For Skin Tissue Engineering, Ömer Aktürk, Di̇lek Keski̇n
Turkish Journal of Biology
As a novel approach in skin tissue engineering, gold nanoparticles (AuNPs) were synthesized and incorporated at different concentrations into collagen/PEO nanofibrous matrices in this study. The group containing 14.27 ppm AuNPs (CM-Au) had the best nanofibrous morphology. CM-Au was cross-linked with glutaraldehyde vapor (CM-AuX). All groups were disrupted in collagenase in 2 h, but cross-linked groups and Matriderm1397904493 resisted hydrolytic degradation for 7 and 14 days, respectively. Due to its small pores and dense structure, lower water swelling results (7.26 ± 2.62 g/g) were obtained for CM-AuX than Matriderm (17.51 ± 1.97 g/g). CM-Au and Matriderm had statistically similar tensile …
Evaluation Of Biocompatibility Of Random Or Aligned Electrospun Polyhydroxybutyrate Scaffolds Combined With Human Mesenchymal Stem Cells, Sevi̇l Köse, Fati̇ma Aerts Kaya, Emi̇r Baki̇ Denkbaş, Petek Korkusuz, Fahri̇ye Duygu Çeti̇nkaya
Evaluation Of Biocompatibility Of Random Or Aligned Electrospun Polyhydroxybutyrate Scaffolds Combined With Human Mesenchymal Stem Cells, Sevi̇l Köse, Fati̇ma Aerts Kaya, Emi̇r Baki̇ Denkbaş, Petek Korkusuz, Fahri̇ye Duygu Çeti̇nkaya
Turkish Journal of Biology
Polyhydroxybutyrate (PHB) is a polymer used to restore tissues or regenerate bones. However, its compatibility with human bone marrow-derived mesenchymal stem cells (MSCs) has not been examined. PHB membranes of random (r-PHB) or aligned (a-PHB) electrospun nanofibers that generate bone and spinal axon scaffolds were combined with human MSCs. The adhesion and proliferation of cells on these membranes were examined. The orientation of cells on PHB membranes was analyzed by confocal microscopy and scanning electron microscopy (SEM). The MSCs maintained their characteristic properties on the membranes, adhered to the membranes, and preserved their viability. The cell morphology was different when …
Cardiac Patch Design: Compatibility Of Nanofiber Materials Prepared Byelectrospinning Method With Stem Cells, Betül Çelebi̇ Saltik, Mustafa Özgür Öteyaka
Cardiac Patch Design: Compatibility Of Nanofiber Materials Prepared Byelectrospinning Method With Stem Cells, Betül Çelebi̇ Saltik, Mustafa Özgür Öteyaka
Turkish Journal of Biology
In this article, in order to create a cardiac patch, a biocompatible polyurethane (PU) nanofiber polymer was developed with the electrospinning method. Bone marrow mesenchymal stem cells (BM MSCs) were isolated from whole human bone marrow. Isolated BM MSC homogeneity was determined by flow cytometry using specific markers. BM MSC-PU interactions were studied with a WST-1 kit on the 3rd and 7th days. Cardiomyocyte differentiation was performed with 5-azacytidine. Cell survival and proliferation of cardiomyocyte-like cells that were cultured on nerve growth factor (NGF)-embedded PU were evaluated with the WST-1 kit on the 3rd and 7th days. NGF's effect on …
Synthesis And Characterization Of Silver Nanoparticles Integrated In Polyvinyl Alcohol Nanofibers For Bionanotechnological Applications, Gamze Tan, Semran Sağlam, Ezgi̇ Emül, Demet Erdönmez, Necdet Sağlam
Synthesis And Characterization Of Silver Nanoparticles Integrated In Polyvinyl Alcohol Nanofibers For Bionanotechnological Applications, Gamze Tan, Semran Sağlam, Ezgi̇ Emül, Demet Erdönmez, Necdet Sağlam
Turkish Journal of Biology
Characterization and microbial growth activity of polyvinyl alcohol (PVA) nanofibers (NFs) produced by an electrospinning technique containing different amounts of silver nanoparticles (AgNPs) was investigated. AgNPs were synthesized by chemical reduction of silver nitrate (AgNO3) (in different weight ratios) in PVA solution followed by electrospinning to produce PVA/AgNPs NFs. The properties of PVA/AgNPs NFs were studied as a function of the silver content. The morphology and distribution of NFs and AgNPs were characterized by transmission and scanning electron microscopy. The size of NFs was 135-160 nm, and the size of AgNPs was 15-27 nm. TEM images clearly showed that spherical …