Quantifying citrate-enhanced phosphate root uptake using microdialysis

Enhanced microdialysis of neuropeptides.

An enhanced microdialysis method for neuropeptides is described and some preliminary results of this novel approach are presented. The enhancement is achieved by adding a vehicle (solid support) to the perfusion fluid in order to increase the diffusion coefficient across the membrane and efficiently transport the analytes towards the detector. The microdialysis samples are desalted and then ana...

Modelling Root System Phosphate Uptake from a Soil Column as Affected by Root Exudation

Heparin-gold nanoparticles for enhanced microdialysis sampling

Cerebral microdialysis is a sampling technique which offers much potential for understanding inflammatory pathophysiology following traumatic brain injury (TBI). At present, the recovery of cytokines via microdialysis in clinical studies is not straightforward primarily due to their size, steric properties and low concentrations. Heparin and heparin-coated microspheres have previously shown pro...

Phosphate Uptake by Phosphate-Starved Euglena

Phosphate participates in an essential way in a number of cell functions, including glycolysis, oxidative phosphorylation, and nucleic acid synthesis. In almost all the cell types studied, the entry of phosphate seems to be controlled at the cell surface (1). In yeast, in which phosphate can be transported against a concentration gradient, the accumulation of phosphate depends on glycolysis and...

High Phosphate Uptake

Human red blood cells reach an equilibrium of phosphate distribution at 37 ° much faster with o . I I M or intermediate levels than with o.o2 M and lower phosphate levels. Other divalent anions added to 0.o2 M phosphate solutions have an action similar to that of the extra phosphate. A past observation that phosphate escapes from red cells more slowly than it enters them appears to have arisen ...