Partitioning of Animal Membranes and Organelles

Flanagan, Steven D.

doi:10.1016/b978-0-12-733860-6.50020-7

Cited by 3 publications

(1 citation statement)

References 85 publications

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“…As frequency is a quantity which can be measured relatively easily and with high accuracy, it is possible in this way to build a system with high sensitivity. The method chosen by Fbdnagan [6] was to use a marginal oscillator ['I] running at a frequency around IO MHz. This scheme has the advantage of being able to measure the inductive and loss components of the coil impedance due to the particles.…”

Section: Marginal Oscillator Drive Circuitsmentioning

confidence: 99%

An online wear debris monitor

Whittington

Flynn

Mills

1992

Meas. Sci. Technol.

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The design, construction and operation of a monitor for detecting metallic particulate contamination in lubricating oils is described. The principle of operation is that lubricating oil flows through a transducer coil, causing small changes in the inductance of a coil as any metallic particles pass. The coil is used as the resonating inductance in an oscillator, whose frequency is compared to a fixed crystal controlled oscillator in a phase locked loop (PLL). The PLL is arranged so that it compensates automatically for any slow drift in the oscillator frequency, while transient disturbances produced by metal particles can be detected and amplified. The direction of the frequency shift allows discrimination between ferrous and non-ferrous particles and the signal amplitude gives a measure of debris size and concentration.

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Section: Marginal Oscillator Drive Circuitsmentioning

confidence: 99%

An online wear debris monitor

Whittington

Flynn

Mills

1992

Meas. Sci. Technol.

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Sodium-dependentl-serine transport in plasma membrane vesicles isolated from Ehrlich cells by two-phase compartmentation

et al. 1991

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Plasma membrane vesicles were prepared from Ehrlich cells using two-phase system compartmentation. The highly pure plasma membrane vesicles obtained presented a negligible mitochondrial contamination and were suitable for studies of amino acid transport. L-Serine transport showed a clear ionic specificity, maximum incorporation being observed when an inwardly directed NaSCN gradient was used. Na(+)-dependent L-serine transport was dependent on assay temperature and membrane potential, and it seemed to be carried out by two different transport systems. An essential sulfhydryl group seemed to be involved in the transport process.

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Studying the Influence of Salts on Partitioning of Proteins: Isoelectric Point Determination

Forciniti

Aqueous Two-Phase Systems

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Partitioning of Animal Membranes and Organelles

Cited by 3 publications

References 85 publications

An online wear debris monitor

An online wear debris monitor

Sodium-dependentl-serine transport in plasma membrane vesicles isolated from Ehrlich cells by two-phase compartmentation

Studying the Influence of Salts on Partitioning of Proteins: Isoelectric Point Determination

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