Scaffold Pore Size
Scaffold Pore Size - Related Videos
13:46
A Facile and Eco-friendly Route to Fabricate Poly(Lactic Acid) Scaffolds with Graded Pore Size
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Cited by 18 •
2016
In this work, poly(lactic acid)/polyethylene glycol (PLA/PEG) scaffolds were prepared by using a combination of melt mixing and selective leaching. The method herein discussed permitted to develop three-layer scaffolds by highly controlling both porosity and pore size. The mechanical properties were also evaluated in a physiological environment.
01:23
Pore Size Distribution
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2024
In concrete, the pore size distribution significantly influences the material's properties. Capillary pores, markedly larger than gel pores, form a vast network within partially hydrated cement paste, reducing the concrete's strength and increasing its permeability. This heightened permeability leads to a greater risk of damage from environmental factors like freeze-thaw cycles and chemical attacks, with the extent of vulnerability also being tied to the water-to-cement ratio. Adequate...
09:37
Microfabrication of Chip-sized Scaffolds for Three-dimensional Cell cultivation
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Cited by 11 •
2008
We present two processes for the microfabrication of porous polymer chips for three-dimensional cell cultivation. The first one is hot embossing combined with a solvent vapour welding process. The second one uses a recently developed microthermoforming process combined with ion track technology leading to a significant simplification of manufacture.
04:49
MSC Seeded Scaffold Preparation: A Technique to Prepare Scaffold Seeded with Mesenchymal Stem Cells for Surgical Implantation into Murine Model
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2025
This video describes the technique of seeding mesenchymal stem cells (MSCs) onto a biodegradable poly(lactic acid) (PLA) scaffold. The prepared scaffolds can be implanted into the surgical resection cavity of the brain from where they may migrate towards tumor foci. Further, these cells can be engineered to express therapeutic proteins to stimulate apoptosis in cancer cells.
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.
FAQs
Interconnected pore dimensions regulate how readily fluid, nutrients, oxygen, and metabolic waste move through the scaffold. These transport conditions affect whether cells can attach to internal surfaces, proliferate, migrate into the structure, and organize into developing tissue. Consequently, pore size influences biological performance not only at the scaffold surface but throughout its three-dimensional interior.
Larger pores generally improve fluid transport and make cellular infiltration more accessible, which can support tissue development deeper within the scaffold. However, increasing pore dimensions may reduce available surface area for cell attachment and weaken mechanical strength. Scaffold design therefore requires a balance between biological accessibility and the structural support needed for the intended tissue substitute.
Interconnected pores provide continuous pathways through which fluids and dissolved substances can move across the scaffold. This connectivity supports nutrient and oxygen delivery as well as waste removal, while also creating routes for cells to migrate through the material. The resulting internal access helps cells populate and organize within the scaffold rather than remaining limited to its outer regions.
Fabrication and design decisions use pore size as a controllable parameter for adjusting the scaffold's internal accessibility and structural behavior. Designers seek dimensions that permit transport and cell infiltration while preserving sufficient surface area and mechanical support. This optimization connects manufacturing choices with the biological requirements of the target tissue and the planned functional tissue substitute.
Researchers can examine whether cells attach effectively, proliferate, migrate through the scaffold, and organize into tissue-like structures. They can also consider how pore dimensions affect fluid movement, nutrient and oxygen diffusion, and waste removal. Together, these observations indicate whether the scaffold provides adequate internal access and supports the intended progression of tissue development.
These applications represent different tissue-regeneration contexts, so scaffold design must balance biological accessibility with structural support in a way suited to the intended substitute. Pore size can be adjusted to influence transport, infiltration, surface area, and mechanical strength. Evaluating these interacting effects helps bioengineers develop scaffolds for bone, cartilage, or soft-tissue regeneration rather than relying on one universal design.