Biological Scaffold
Biological Scaffold - Related Videos
02:31
Extracellular Matrix-derived Foam Fabrication via Lyophilization: A Procedure to Generate Biological Scaffolds from ECM of Decellularized Tissues
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2023
This video describes the method for synthesizing pure ECM-derived foams without the need for chemical crosslinking. These ECM-derived foams find applications as advanced 3D in vitro cell culture models or as pro-regenerative bioscaffolds.
08:06
Interview: Bioreactors and Surfaced-Modified 3D-Scaffolds for Stem Cell Research
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2008
In the past many in vitro culture systems -- mainly monolayer cultures -- often suffered from the disadvantage that differentiated primary cells had a relatively short life-span and de-differentiated during culture. As a consequence, most of their organ-specific functions were lost rapidly. Thus, in order to reproduce better conditions for these cells in vitro, modifications and adaptations have been made to conventional monolayer cultures.
04:33
Decellularized Porcine Esophageal Scaffold Preparation: A Technique to Generate Acellular Scaffold from a Pig Esophagus
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2023
In this video, we demonstrate the preparation of a decellularized pig esophagus scaffold, with its biochemical architecture and composition preserved, for tissue engineering applications.
09:02
SEM Imaging of Biological Samples
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2023
Source: Peiman Shahbeigi-Roodposhti and Sina Shahbazmohamadi, Biomedical Engineering Department, University of Connecticut, Storrs, Connecticut A scanning electron microscope (SEM) is an instrument that uses an electron beam to nondestructively image and characterize conductive materials in a vacuum. As an analogy, an electron beam is to the SEM as light is to the optical microscope. The difference is that the electron microscope yields images of much higher resolution and magnification. The...
07:48
Three-Dimensional In Vitro Biomimetic Model of Neuroblastoma Using Collagen-Based Scaffolds
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Cited by 9 •
2021
This paper lists the steps required to seed neuroblastoma cell lines on previously described three-dimensional collagen-based scaffolds, maintain cell growth for a predetermined timeframe, and retrieve scaffolds for several cell growth and cell behavior analyses and downstream applications, adaptable to satisfy a range of experimental aims.
FAQs
Interconnected pores do more than create empty space: they provide routes that help cells adhere, migrate, proliferate, and differentiate within a three-dimensional construct. Because pore architecture is linked to how cells organize, researchers adjust scaffold structure when they want to influence tissue formation rather than simply provide physical support. This organization can also affect integration with surrounding tissue.
Biochemical cues provide signals that can guide cellular activity, while mechanical properties help establish the physical conditions surrounding the cells. Together, these features influence adhesion, migration, proliferation, and differentiation. In bioengineering, controlling both types of properties allows researchers to modify a scaffold for a particular tissue-forming goal instead of relying on structure alone.
These sources offer different starting points for constructing or modifying a biological scaffold. Natural extracellular matrix and decellularized tissues provide tissue-derived structures, whereas engineered biomaterials allow researchers to design scaffold composition and architecture. The choice depends on how much control is needed over structural features, biochemical cues, and mechanical properties for the intended regenerative or research application.
Composition and architecture influence how a construct interacts with cells and with surrounding tissue. Their effects on cellular organization and tissue formation can promote vascularization, meaning the development of blood-vessel networks, and can support integration with adjacent tissue. These outcomes matter because a scaffold must guide more than isolated cell growth when the goal is functional tissue development.
Researchers match scaffold composition, pore architecture, biochemical cues, and mechanical properties to the tissue-forming objective. They may select natural, decellularized, or engineered materials and then modify the scaffold to influence cellular behavior. The design must also account for whether the construct will support tissue replacement, cell delivery, therapeutic-molecule delivery, or new tissue formation.
A scaffold can serve as a three-dimensional setting for delivered cells or as a structure that carries therapeutic molecules to a target tissue environment. Its architecture and material properties help organize cells and shape their behavior, while the construct supports the broader goal of new tissue formation. This makes scaffolds useful beyond structural replacement alone.
Biological scaffolds can support damaged-tissue replacement, cell-based constructs, therapeutic delivery, and the development of new tissue. Researchers also use them to study how composition, architecture, biochemical cues, and mechanics affect cellular responses. In regenerative medicine, successful designs are intended to promote vascularization, integration with surrounding tissue, and the formation of functional constructs.