Results 21 to 30 of about 5,851,651 (312)

Hepato(Geno)Toxicity Assessment of Nanoparticles in a HepG2 Liver Spheroid Model

open access: yesNanomaterials, 2020
(1) In compliance with the 3Rs policy to reduce, refine and replace animal experiments, the development of advanced in vitro models is needed for nanotoxicity assessment. Cells cultivated in 3D resemble organ structures better than 2D cultures.
Elisabeth Elje   +7 more
doaj   +1 more source

Walking-Induced Bone Strain Stimulates Cultured Osteoblasts Accompanied by the Low-Magnitude, High Frequency Components

open access: yesJournal of Biomechanical Science and Engineering, 2009
The purpose of this study is to test a hypothesis that involvement of the low-magnitude, high frequency strain components in the walking-induced bone strain is essential to elicit the osteogenic response of osteoblasts to the bone strain.
Shigeo M. TANAKA, Hui B. SUN
doaj   +1 more source

The Stabilization Effect of Mesenchymal Stem Cells on the Formation of Microvascular Networks in a Microfluidic Device

open access: yesJournal of Biomechanical Science and Engineering, 2013
There is a demand for three-dimensional (3D) angiogenesis model including endothelial cells (ECs) and mesenchymal stem cells (MSCs), which are known to differentiate into pericytes, to construct stabilized and matured microvascular networks in vitro ...
Kyoko YAMAMOTO   +8 more
doaj   +1 more source

Intracellular Ca2+ Responses of 3D-Cultured Osteoblasts to Dynamic Loading

open access: yesJournal of Biomechanical Science and Engineering, 2012
In bone cells, intracellular Ca2+ (iCa2+) functions as a second messenger in the mechanotransduction pathway. Its responses to mechanical stimulation can be observed microscopically on a rigid flat surface with a Ca2+ fluorescent indicator, generally ...
Shigeo M. TANAKA
doaj   +1 more source

Implementation of an in vitro exposure system for 28 GHz

open access: yesETRI Journal, 2020
The objective of this study was to implement an in vitro exposure system for 28 GHz to investigate the biological effects of fifth‐generation (5G) communication. A signal source of 28 GHz for 5G millimeter‐wave (MMW) deployment was developed, followed by
Young Seung Lee   +7 more
doaj   +1 more source

Deterministic culturing of single cells in 3D [PDF]

open access: yesScientific Reports, 2020
AbstractModels using 3D cell culture techniques are increasingly accepted as the most biofidelic in vitro representations of tissues for research. These models are generated using biomatrices and bulk populations of cells derived from tissues or cell lines. We present an alternate method to culture individually selected cells in relative isolation from
Rohil Jain   +4 more
openaire   +3 more sources

Three-dimensional model of glioblastoma by co-culturing tumor stem cells with human brain organoids

open access: yesBiology Open, 2021
Emerging three-dimensional (3D) cultures of glioblastoma are becoming powerful models to study glioblastoma stem cell behavior and the impact of cell–cell and cell–microenvironment interactions on tumor growth and invasion.
Roberta Azzarelli   +3 more
doaj   +1 more source

Characterization of in vitro 3D cultures [PDF]

open access: yesAPMIS, 2021
SummaryOver the past decade, 3D culture models of human and animal cells have found their way into tissue differentiation, drug development, personalized medicine and tumour behaviour studies. Embryoid bodies (EBs) are in vitro 3D cultures established from murine pluripotential stem cells, whereas tumoroids are patient‐derived in vitro 3D cultures ...
openaire   +2 more sources

Morphological and Functional Changes of Rat Hepatocytes by Vertical Cell-Cell Adhesion in Three-Dimensional Stacked-Up Culture

open access: yesJournal of Biomechanical Science and Engineering, 2008
Vertical cell-cell contact is an important difference between 2D- and 3D-culture models. We hypothesized that this difference in cell-cell contacts is critical in maintaining hepatocyte functions.
Ryo SUDO   +3 more
doaj   +1 more source

3D Cell Culture in Alginate Hydrogels [PDF]

open access: yesMicroarrays, 2015
This review compiles information regarding the use of alginate, and in particular alginate hydrogels, in culturing cells in 3D. Knowledge of alginate chemical structure and functionality are shown to be important parameters in design of alginate-based matrices for cell culture. Gel elasticity as well as hydrogel stability can be impacted by the type of
Andersen, Therese   +2 more
openaire   +2 more sources

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