Pore Architecture
Pore Architecture - Related Videos
13:46
A Facile and Eco-friendly Route to Fabricate Poly(Lactic Acid) Scaffolds with Graded Pore Size
0 Views •
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.
08:50
Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications
0 Views •
Cited by 7 •
2017
Different methods to manipulate three-dimensional architecture in protein-based hydrogels are evaluated here with respect to material properties. The macroporous networks are functionalized with a cell-adhesive peptide, and their feasibility in cell culture is evaluated using two different model cell lines.
01:23
Pore Size Distribution
0 Views •
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...
11:20
Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry
0 Views •
Cited by 4 •
2014
A procedure for creating and imaging capillary bridges in slit-pore geometry is presented. The creation of capillary bridges relies on the formation of pillars to provide a directional physical and chemical heterogeneity to pin the fluid. Capillary bridges are formed and manipulated using microstages and visualized using a CCD camera.
13:44
Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
0 Views •
Cited by 13 •
2013
We demonstrate methods for the detection of architectural distortion in prior mammograms. Oriented structures are analyzed using Gabor filters and phase portraits to detect sites of radiating tissue patterns. Each site is characterized and classified using measures to represent spiculating patterns. The methods should assist in the detection of breast cancer.
FAQs
These features act together rather than independently. Porosity determines the available void space, while pore size affects the dimensions of transport pathways. Interconnectivity provides continuous routes through the material, whereas tortuosity describes how indirect those routes are. Their combined arrangement influences the movement of nutrients, oxygen, waste, and therapeutic molecules, thereby affecting biological performance.
Increasing void space and pathway connectivity can improve movement through a scaffold, but the same structural changes may influence its mechanical behavior. Effective design therefore requires balancing biological access with structural integrity. This balance matters because a scaffold must support nutrient and oxygen movement while retaining enough stability to contribute to tissue formation.
Cellular outcomes depend on whether the available pore pathways permit cells and biological supplies to reach relevant regions of the scaffold. Appropriate organization can support cell seeding and migration, while connected spaces can facilitate the movement associated with vascularization. As a result, architecture links the physical design of a biomaterial with tissue development and regenerative performance.
Interconnected pores create continuous routes through a porous structure, allowing materials to move between regions rather than remaining confined to separate voids. This distinction is important for distributing nutrients, oxygen, waste, and therapeutic molecules throughout a scaffold. In bioengineering, connectivity can therefore determine whether the internal space supports coordinated cellular activity and tissue formation.
Design begins by selecting and controlling structural features that affect transport, cells, and stability, including pore size, porosity, interconnectivity, and tortuosity. These characteristics are then linked to the intended biological function, such as cell seeding, migration, vascularization, or tissue formation. The resulting design connects material fabrication decisions with expected biological performance.
It is particularly important when a material must support movement through an internal structure or interact with living cells. Tissue-engineering scaffolds rely on it for regenerative functions, while drug-delivery materials use it to guide therapeutic molecule movement. The same design principle also contributes to biomaterial filtration, where internal pathways affect fluid passage.
Researchers can relate architectural features to transport, mechanical behavior, and cellular responses. In scaffolds, relevant outcomes include the ability to support cell seeding, migration, vascularization, and tissue formation while preserving structural integrity. This evaluation helps connect measurable material design characteristics with broader regenerative objectives and clinically relevant biomaterial performance.