نتایج جستجو برای: three dimensional 3d culture
تعداد نتایج: 1908202 فیلتر نتایج به سال:
background: collagen-based three-dimensional (3d) in vitro systems have been introduced to study the physiological states of cells. as a biomolecule, collagen is usually extracted from terrestrial animals whilst aquatic animals like squid contain large amounts of collagen. methods: in order to make effective use of marine organisms, we selected persian gulf squid in 2015 to extract the required...
Having knowledge of stability of an underground space depends on stresses and strains around it. Creating underground tunnels leads to significant changes in the rock mass stress. Therefore, to achieve the necessary stability, stresses and deformations around the tunnel must be examined carefully. Usually, stress-strain behavior analysis is conducted in two-dimensional mode. This paper was cond...
In this paper, we investigate a new approach to the cooccurrence matrix currently used to extract textural features: co-occurrence matrices for volumetric data. While traditional texture metrics have concentrated on 2D texture, 3D imaging modalities are becoming more and more prevalent, providing the possibility of examining texture as a volumetric phenomenon. Just as computer graphics have use...
objective: we studied both the presence of some carbohydrate compounds in a three-dimensional (3d) matrix harvested from human gingiva and the cell behavior in this matrix. materials and methods: in this experimental research, in order to prepare 3d scaffolds, human palatal gingival biopsies were harvested and physically decellularized by freeze-thawing and sodium dodecyl sulfate (sds). the sca...
Two-dimensional (2D) cell cultures growing on plastic do not recapitulate the three dimensional (3D) architecture and complexity of human tumors. More representative models are required for drug discovery and validation. Here, 2D culture and 3D mono- and stromal co-culture models of increasing complexity have been established and cross-comparisons made using three standard cell carcinoma lines:...
although some 3d slope stability algorithms have been proposed in recent three decades, still role of pore pressures in three dimensional slope stability analyses and considering the effects of pore water pressure in 3d slope stability studies needs to be investigated. in this paper, a limit analysis formulation for investigation of role of the pore water pressure in three dimensional slope sta...
Three-dimensional environments have been shown to enhance cell aggregation and osteoblast differentiation. Thus, we hypothesized that three-dimensional (3D) growth environments would enhance the mineralization rate of human embryonic palatal mesenchymal (HEPM) pre-osteoblasts. The objective of this study was to investigate the potential use of rotary cell culture systems (RCCS) as a means to en...
In this paper, we describe a microfluidic platform that enables three dimensional cell culture within defined microenvironments towards a study of axon-glia interaction. The microdevice can offer both 3D axon isolation from cell body and 3D spatial cell separation between neuron and astrocyte. It consists of large fluidic channels for media supply and small channels for collagen filling as a th...
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