What is a nucleation center?
A solid or liquid particle on which condensation occurs. If no nucleation centers are present, supersaturation can occur. Condensation, Supersaturation.
What is the meaning of nucleation?
nucleation, the initial process that occurs in the formation of a crystal from a solution, a liquid, or a vapour, in which a small number of ions, atoms, or molecules become arranged in a pattern characteristic of a crystalline solid, forming a site upon which additional particles are deposited as the crystal grows.
What is crystallization and nucleation?
Crystallization from solution can be thought of as a two-step process. The first step is the phase separation or “birth” of new crystals. The second step is the growth of these crystals to larger sizes. These two processes are known as nucleation and crystal growth, respectively.
What is nucleation and types of nucleation?
There are two types of nucleation namely the homogeneous or spontaneous nucleation and heterogeneous nucleation. This phenomenon happens when nuclei are formed perfectly in a clean solution where there are no any foreign particles.
Are deep seated?
Deep-seated means “firmly established,” as in “deep-seated resentment,” but it also has an earlier literal meaning of “situated far below the surface.” It is from that meaning the figurative use of the word developed.
What is seeding of cells?
Cell seeding is to spread cells to a culture vessel for cell culture activities. In the case of adherent cells, this refers to the use of a suitable material, or in some cases, the addition of a cell suspension onto a surface-treated culture vessel.
Why is it seed and not seat?
Deep-seated is the correct term. Deep-seated means “firmly established,” as in “deep-seated resentment,” but it also has an earlier literal meaning of “situated far below the surface.” It is from that meaning the figurative use of the word developed. It is sometimes mistaken as deep-seeded.
What is the definition of ineradicable?
Definition of ineradicable : incapable of being eradicated.
What does cell viability mean?
Cell viability is defined as the number of healthy cells in a sample and proliferation of cells is a vital indicator for understanding the mechanisms in action of certain genes, proteins and pathways involved cell survival or death after exposing to toxic agents.
What is cell seeding efficiency?
To quantitate the cell density relationship between deposited cells by scaffold and injected cells, cell seeding efficiency (Φ) is used to describe the percentage of the attached cells (Na) over the injected cells (Ni) (see Eq. 12).
Is tennis a seed or seat?
A seed is a competitor or team in a sport or other tournament who is given a preliminary ranking for the purposes of the draw.
Why are rankings called seeds?
Seed, when used in rankings and placement in tournaments, first started with tennis. One source suggests the rankings come from the word ‘conceded,’ as in, the team/player is conceded, or assumed, to be the best. Casual usage led to ‘ceded’ which then led to the use of the word ‘seed. ‘
What determines cell viability?
ATP Cell Viability Assays ATP can be used to measure cell viability since only viable cells can synthesize ATP. ATP can be measured using the CellTiter-Glo® Luminescent Cell Viability Assay (Cat. # G7570) with reagents containing detergent, stabilized luciferase and luciferin substrate.
What is the purpose of cell seeding?
Why is seeding density important?
Cell seeding density is important for cell proliferation, differentiation, and extracellular matrix (ECM) synthesis. Previous study showed that a higher cell density enhanced biosynthesis of ECM such as collagen. Higher seeding density also yielded higher ALP and more mineralization.
What is nucleation?
See Article History. Nucleation, the initial process that occurs in the formation of a crystal from a solution, a liquid, or a vapour, in which a small number of ions, atoms, or molecules become arranged in a pattern characteristic of a crystalline solid, forming a site upon which additional particles are deposited as the crystal grows.
What is the importance of nucleation in crystallization?
Nucleation is important for understanding metals and crystallization. When talking about crystalline structures, nucleation occurs as a liquid begins to solidify and a nucleus of solidified material forms and grows.
Is nucleation random or stochastic?
Nucleation is usually a stochastic (random) process, so even in two identical systems nucleation will occur at different times. This behaviour is similar to radioactive decay. A common mechanism is illustrated in the animation to the right.
What is nucleation and how does it relate to Alzheimer’s?
The self-assembly process that forms objects like the amyloid aggregates associated with Alzheimer’s disease also starts with nucleation. Energy consuming self-organising systems such as the microtubules in cells also show nucleation and growth.
https://www.youtube.com/watch?v=ExC4cLHexf4