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The sliver line that you see is actually an artifact and the edge of the drop.
The hanging drop preparation can study the motility over a longer period of time, but it is more difficult to examine than a wet mount. Wet mount is preferable to a hanging drop slide when using phase contrast optics.
none.
Just by the sheer fact that any vibration of any kind can be considered Brownian motion for a hanging drop test. the longer you observe your bacteria, the more chance there are of Brownian motion interfering with your motility test ( I assume you're talking about the motility hanging drop, right?). It is because of this fact that the hanging drop test is quickly falling out of favor for more secure tests for motility, the semi-solid media being one of them.
volume of material used
The sliver line that you see is actually an artifact and the edge of the drop.
The purpose of the hanging drop technique is a method in which a drop of bacterial suspension is enclosed in an air-tight chamber prepared in a special depression slide. It allows you to view living organisms.
hanging drop tecnique have practical value
hanging drop tecnique have practical value
Hanging drop preparation is very valuable as it allows for a truer research capability. Hanging drop preparation offers longer observation abilities.
A hanging-drop is used to determine bacterial motility, besides brownian movement.
This type of sealing material is used primarily to reduce evaporation of liquid and to eliminate air current in the preparation.
Hanging as a method of execution was abolished in the UK in 1965 for murder, and in 1973 for all other crimes. It was replaced by the method of execution by hanging.
The disadvantages are that the calculations required are not simple and that the method assumes that the same linear relationship is applicable across the whole data range. And these are the disadvantages of the least squares method.
Hanging drop preparations can be observed for a long time because they do not dry up very quickly. Thus, motility of an organisim can be observed.
three disadvantages cyanmethemoglobin
advantages and disadvantages of delphi method of group technique