Secondary Cell Seeding
Secondary Cell Seeding - Related Videos
06:26
An Efficient Clearing Protocol for the Study of Seed Development in Tomato (Solanum lycopersicum L.)
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Cited by 2 •
2022
The tomato seed is an important model for studying genetics and developmental biology during plant reproduction. This protocol is useful for clearing tomato seeds at different developmental stages to observe the finer embryonic structure.
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.
01:55
Secondary Active Transport
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2026
One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this process is sodium (Na+), which is typically present in higher concentrations extracellularly than in the cytosol. Such a concentration difference is due, in part, to the action of an enzyme “pump” embedded in the cellular membrane that actively expels Na+ from a cell. Importantly, as this pump contributes to the high concentration of...
02:59
Drosophila Male Accessory Gland Dissection: A Method to Isolate Secondary Cells
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2023
This video describes the dissection of the accessory glands from male flies and shows an example in which the isolated gland will be dissociated into a single cell suspension.
02:33
Seed Structure and Early Development of the Sporophyte
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2020
Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo. The embryo contains a double set of chromosomes, one set from each parent. Fertilization of the haploid egg by the haploid sperm gives rise to the zygote, which develops into the embryo. The endosperm is a...
FAQs
Controlled seeding density makes cultures more comparable by standardizing how many cells begin the next growth phase. Distribution across the surface, scaffold, or biomaterial also affects whether cells can reattach, spread, and proliferate throughout the intended region. In bioengineering experiments, these controls improve reproducibility when evaluating scaffold performance, cellular organization, and tissue formation.
Detachment is a transition between the original culture and the new growth environment. Cells must be released from the established substrate, collected, and placed on a different surface, scaffold, or biomaterial in a form that permits reattachment. Successful reattachment allows subsequent spreading and proliferation, making the transfer useful for maintaining and expanding engineered cell populations.
Defined culture conditions provide the setting in which transferred cells reattach, spread, and proliferate after seeding. Because the same seeding process can be evaluated across controlled conditions, researchers can maintain engineered populations and assess cellular responses on different materials more consistently. The resulting growth phase is therefore important for reproducible measurements of scaffold performance and cellular organization.
A typical workflow begins with an established culture, followed by detachment of its cells from the original substrate. The cells are then collected, counted, and distributed at a controlled density onto the selected surface, scaffold, or biomaterial. Subsequent culture allows reattachment, spreading, and proliferation, while consistent distribution supports reliable comparison of the resulting construct or culture.
It is useful when a bioengineering study requires an established cell population to be expanded, maintained, or introduced into a new material environment. Transferring cells onto scaffolds or biomaterials enables evaluation of cell-material interactions, while controlled placement supports comparisons of how cells organize and grow. This makes the technique relevant to culture maintenance and engineered-material assessment.
In three-dimensional tissue engineering, Secondary cell seeding helps populate a construct with cells from an established culture. The controlled starting density and distribution provide a basis for examining cellular organization and tissue formation within the construct. Consistent seeding also improves reproducibility when comparing scaffold performance, making observed differences easier to relate to the engineered material or culture design.