Mechanical Loading Bioreactor
Mechanical Loading Bioreactor - Related Videos
08:04
Design of a Biaxial Mechanical Loading Bioreactor for Tissue Engineering
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Cited by 24 •
2013
We designed a novel mechanical loading bioreactor that can apply uniaxial or biaxial mechanical strain to a cartilage biocomposite prior to transplantation into an articular cartilage defect.
11:36
Ex vivo Mechanical Loading of Tendon
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2007
A new in vitro system for simultaneously loading four tendons in culture is described.
09:40
Batch and Continuous Bioreactors
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2023
Bioreactors are used to grow organisms in large volumes, thereby enabling the production of mass quantities of the target product. These reactors can be batch reactors, which contain all of the components needed for cell growth, or continuous reactors, which have inlet and outlet ports allowing for the addition of fresh growth media and the removal of cell waste. This video presents batch and continuous reactors and demonstrates the use of bioreactors to grow bacteria in the laboratory.
12:54
Operation of a Benchtop Bioreactor
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Cited by 9 •
2013
Fermentors are used to increase culture yield and productivity of bioengineered cells. After screening multiple microbial or animal cell culture candidates in shake flasks, the next logical step is to increase the selected culture’s biomass with the fermentor. This video demonstrates the setup and operation of a typical benchtop bioreactor system.
11:22
Engineering Biological-Based Vascular Grafts Using a Pulsatile Bioreactor
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Cited by 32 •
2011
Our group has developed a bioreactor culture system that mimics the physiological pulsatile stresses of the cardiovascular system to regenerate implantable small-diameter vascular grafts.
FAQs
Cells respond because mechanosensitive structures detect physical stimuli and convert them into biochemical signals. Those signals can alter gene expression, matrix production, and tissue organization. This mechanotransduction process links the externally programmed loading pattern to cellular behavior, allowing investigators to examine how engineered constructs respond rather than treating the culture environment as mechanically passive.
Compression, tension, shear, and fluid movement provide different forms of physical input, so the loading mode can be selected according to the biological question. A system can therefore study responses to particular mechanical environments. This flexibility is relevant to cartilage, bone, tendon, and other tissues that must develop or function under mechanical demands.
Controlled loading matters because cells respond to physical conditions as well as biochemical culture factors. By delivering defined stimuli, the system makes mechanical conditions more reproducible and helps researchers examine how force-related cues influence gene expression, matrix formation, and tissue organization. Comparing defined loading conditions can also support decisions about how to optimize engineered tissue cultures.
An experiment begins by placing cells, tissue, or a biomaterial construct in the loading system, then programming a selected physical stimulus such as compression, tension, shear, or fluid movement. After exposure, investigators can examine changes in gene expression, matrix production, or tissue organization. These measurements connect the applied mechanical condition with biological or construct-level responses.
Bioengineers use these systems when they need to reproduce aspects of the mechanical environment relevant to developing or load-bearing tissue. Controlled stimulation can support the development and maturation of engineered cartilage, bone, tendon, and other constructs. The approach also helps optimize culture conditions and evaluate whether an engineered construct may perform under functional mechanical demands.
In bioengineering, the system serves both as a tissue-engineering tool and as a model for studying mechanotransduction. It can reveal whether applied forces are associated with changes in cellular gene expression, matrix production, or organization of the engineered tissue. These outcomes provide evidence about maturation and how closely a construct responds to the mechanical demands it is intended to meet.