Colloidal change and mitosis
نویسندگان
چکیده
منابع مشابه
Mammalian Cells Change Volume during Mitosis
Using single cell-imaging methods we have found that the volume of adherent cells grown in culture decreases as the cells rounds when it enters mitosis. A minimal volume is reached at metaphase. Rapid volume recovery initiates before abscission as cells make the transition from metaphase to cytokinesis. These volume changes are simultaneous with the rapid surface area decrease and recovery obse...
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Changes in the metabolic state of a cell that permit (and perhaps trigger) mitosis are suggested from a variety of observations (see general discussions of the premitotic state: references 5, 7, 13). A list of such premonitory indications of mitosis should probably include increase in nuclear volume, loss of cellular water, cortical and endoplasmic viscosity changes partly or wholly related to ...
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The fabrication and properties of pH-responsive colloidal particles are reported, which change shape rapidly (less than 200 ms), nearly independent of the diffusion of the pH altering species that trigger their actuation, and far more rapid than their Brownian motion. These particles are mechanically bistable, as revealed by their hysteretic shape response. Finite element analysis (FEA) shows t...
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Introduction As we discussed in class, biological growth is a multi-dimensional phenomena. In essence, the basic unit of life, the cell, must duplicate itself. One "mother" cell must become two "daughter" cells, through the process of Cell Division, mostly MITOSIS. This is a completely asexual event and involves replication of the nucleus and its constituents and dividing up of the cytoplasm, t...
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In this work, for the first time, the rheological properties of nanofluids of lanthania nanoparticles (NPs) in ethylene glycol (EG) as functions of shear rate, volume fraction, and temperature were measured. The results showed that both EG and the nanofluids behave as non-Newtonian fluids at lower shear rates and transform to Newtonian fluids at higher shear rates. The values of viscosity ...
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ژورنال
عنوان ژورنال: Archiv für Mikroskopische Anatomie und Entwicklungsmechanik
سال: 1925
ISSN: 0949-944X,1432-041X
DOI: 10.1007/bf02108502