Results 231 to 240 of about 273,854 (260)

Bone water studied by differential centrifugation

Calcified Tissue Research, 1967
The binding of water in bone was re-examined by differential centrifugation. Specimens of human trabecular were cleaned in a jet stream of water, degassed in water, and subjected to centrifugation fields, varying from 100 to 27.000 g's in sealed vials in a refrigerated centrifuge. Specimens were run in groups of six.
J S, Arnold, S A, Tont
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Microbubble size isolation by differential centrifugation

Journal of Colloid and Interface Science, 2009
Microbubbles used as contrast agents for ultrasound imaging, vectors for targeted drug delivery and vehicles for metabolic gas transport require better size control for improved performance. Mechanical agitation is the only method currently available to produce microbubbles in sufficient yields for biomedical applications, but the emulsions tend to be ...
Jameel A, Feshitan, Cherry C, Chen, James J, Kwan, Mark A, Borden   +3 more
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Theory of differential centrifugation in angle-head rotors

Analytical Biochemistry, 1969
Abstract Differential centrifugation is much used for the isolation and purification of virus. Appropriate conditions of rotor speed, time, number of cycles, etc. are usually chosen empirically. Simple equations are presented here for the prediction of the amount of material that will be recovered in each sedimentation class.
V, Schumaker, A, Rees
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Differential particle size distributions from centrifugation experiments

Journal of Colloid and Interface Science, 1984
Abstract Differential size distributions obtained with the Joyce—Loebl disk centrifuge are volume distributions (with linear size increment). Sedimentation field flow fractionation yields number distributions when performed at constant rotor speed, or volume distributions when the rotor speed is allowed to decay exponentially.
Hans Coll, Simon C Haseler
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Insect Neurosecretory Material Separated by Differential Centrifugation

Science, 1962
The factor which accelerates the beating of the insect heart was found to be concentrated in a "large granule" fraction of the corpora cardiaca of the cockroach, Periplaneta americana (L.).
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Particle size differentiation in centrifugal force field

Nanotechnologies in Russia, 2014
Silicon dioxide nanopowders with various size distributions have been obtained by centrifuge. The distributions of initial and obtained powders have been analyzed by electron microscopy and dynamic light scattering. A potential for effective nanopowder separation in the centrifugal force field using a booster liquid is shown.
S. V. Kalashnikov, N. A. Romanov, A. V. Nomoev, E. L. Dzidziguri   +3 more
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Sperm Collection of Differential Quality Using Density Gradient Centrifugation

Journal of Visualized Experiments, 2018
In sexual reproduction, a male gamete or sperm cell fuses with a female gamete to bring about fertilization. However, a large number of sperm cells with fertilizing ability are required to interact with a female gamete to ensure fertilization. As such, the fertilizing ability of individual sperm cells is critical for successful reproduction.
Muslah Uddin, Ahammad, Zachery Ryan, Jarrell, Andrew Parks, Benson   +2 more
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Differentiation of reoviruses and picornaviruses by density gradient centrifugation

Archiv f�r die gesamte Virusforschung, 1967
The two HA moieties of reovirus (infectious particle and top component) were recentrifuged in a CsCl gradient. They were stable under these conditions and purified to such an extent that the top component HA moiety contained only 4 TCD50 per unit. Mixtures of poliovirus and reovirus (all three prototypes) were centrifuged in a CsCl density gradient ...
R, Engler, M, Taher, A, Fouad
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Isolation of yeast mitochondria by differential centrifugation

The isolation of intact and functional mitochondria is a powerful approach to characterize and study this organelle. The classical biochemical method of differential centrifugation is routinely used to isolate mitochondria. This method has several advantages, such as a high yield and easy adaptability.
Kuo, Song, Heike, Rampelt
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Large‐scale purification of Qβ‐virus by differential centrifugation

Biotechnology and Bioengineering, 1974
AbstractBacterial RNA virus, Qβ, has been purified in gram amounts by differential centrifugation. Final separation of the virus from host E. coli rRNA was based on the density differential in the pellet. The method provided a simplified alternative to the more conventional rate zonal or isopycnic zonal centrifugation techniques.
W C, McGregor, J J, Round, A H, Ramel
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