Mechanical Trituration
Mechanical Trituration - Related Videos
12:45
Mechanical Stimulation of Chondrocyte-agarose Hydrogels
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Cited by 29 •
2012
The biosynthesis of cartilaginous extracellular matrix by chondrocytes can be affected by application of mechanical stimuli. This method describes the technique of applying dynamic compressive strains to chondrocytes encapsulated in 3D constructs and the evaluation of induced changes in chondrocyte metabolism.
03:06
Reaction Mechanisms
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2020
Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs. For instance, the decomposition of ozone appears to follow a mechanism with two steps:
01:58
Mechanical Protein Functions
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2020
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.
15:21
Microfabricated Platforms for Mechanically Dynamic Cell Culture
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Cited by 3 •
2010
In this protocol, we demonstrate the fabrication of a microactuator array of vertically displaced posts on which the technology is based, and how this base technology can be modified to conduct high-throughput mechanically dynamic cell culture in both two-dimensional and three-dimensional culture paradigms.
01:19
Mechanism of Conjugation
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2025
Bacterial conjugation is a mechanism of horizontal gene transfer that enables the exchange of genetic material between bacterial cells through direct contact. This process is facilitated by a donor cell carrying a conjugative plasmid, which encodes genes necessary for pilus formation, DNA replication, and transfer. The conjugative plasmid plays a central role in initiating and executing the transfer of genetic material.The tra region of the conjugative plasmid encodes proteins responsible for...
FAQs
Applied force determines how thoroughly a biological sample is disrupted. Grinding, crushing, or repeated mixing can break cell structures and produce smaller particles, but excessive or insufficient force may affect sample integrity and the consistency of the preparation. Selecting pressure appropriate to the material helps balance structural disruption with preservation of the components needed for analysis.
Producing smaller particles increases the sample’s surface area, which can improve contact with the surrounding liquid medium and support the release of intracellular components. This change is important when preparing material for DNA, protein, or metabolite extraction. Particle size therefore influences how effectively the prepared sample supports later analytical or biochemical procedures.
These tools all apply physical force, but their differing designs and operating approaches can produce different levels of mixing and disruption. The selected equipment should match the biological material and the intended analysis. Tool choice, together with pressure and processing conditions, can influence whether the preparation preserves useful structures or releases intracellular contents effectively.
A general workflow begins by selecting a suitable grinding, crushing, or mixing tool for the sample. The material is then processed with controlled force, often in a liquid medium, until it reaches a preparation appropriate for the planned analysis. The resulting sample can proceed to extraction, microscopy, or biochemical testing, depending on the experimental objective.
Researchers may choose this approach when a sample must be physically disrupted before examining its contents or structure. It can support DNA extraction, protein extraction, metabolite extraction, microscopic examination, and biochemical assays. Its value lies in preparing the material for a specific downstream method, with processing conditions adjusted to protect the quality of the required result.
Researchers should consider the tool used, the amount of pressure applied, the extent of repeated mixing, and the processing conditions. These variables affect sample integrity and the release of intracellular components, which can influence downstream results. Matching the preparation to the intended DNA, protein, metabolite, microscopic, or biochemical analysis improves the relevance of the sample.