ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

Hits per page

hits 1 - 2 | 2 hits

Sorting

Electronic Resource

Ultrastructural studies of peripheral blood lymphocytes in T cell-depleted rabbits (1980)

Vos, J. G. ; Roholl, P. J. M. ; Leene, W.

Springer

Cell & tissue research 213 (1980), S. 221-235

add to mindlist on the mindlist

Details

ISSN: 1432-0878

Keywords: Peripheral blood lymphocyte ; Density separation ; T cell depleted rabbits ; Ultrastructure

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Medicine

Notes: Summary Density separation of purified peripheral blood leucocytes from T-cell depleted rabbits on a linear Ficoll-metrizoate gradient has been applied to obtain different leucocyte fractions. Two lymphocyte fractions separated on density seem to have different characteristics, both morphologically and immunologically. In this study these two fractions have been characterized ultrastructurally by using scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and a relationship has been established between the surface architecture (SEM), the cell size (SEM/TEM) and surface-Ig/C3-receptors (LM, light microscopy). Finally three types of lymphocytes have been described in the two lymphocyte fractions separated on density. Morphometric information such as cell size, cell shape, eu-/heterochromatin ratio in the nucleus and the nucleus-/cell ratio have been correlated to the stage of activation of the B lymphocyte in a representative density separation.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00234783

Permalink

	Location	Call Number	Expected	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

Electronic Resource

The effect of the nature of the polymer backbone on the stability and the analytical response of polymer-modified electrodes (1995)

Doherty, A. P. ; Stanley, M. A. ; Arana, G. ; [et al.]

Weinheim : Wiley-Blackwell

Electroanalysis 7 (1995), S. 333-339

add to mindlist on the mindlist

Details

ISSN: 1040-0397

Keywords: Modified electrode ; Redox polymer ; Sensor ; Flow injection analysis ; Iron ; Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The synthesis, characterization, and sensor application of the novel redox polymer [Os(bipy)2(PS)7.5(DMAP)2.5Cl]Cl, where bipy = 2,2′-bipyridyl, PS = polystyrene, and DMAP = poly[4-(N-methyl-N-p-vinylbenzylamino) pyridine], are described. The charge transport properties of electrodes modified with the redox material are investigated using cyclic voltammetry and chronoamperometry. The modified electrode behaves as an efficient electrocatalyst for the outer-sphere reduction of FeIII, with the cross-exchange reaction occurring at the surface of the polymer (Sk″) at concentrations less than 1.0 × 10-3 mol dm-3 FeIII, with a change over to the Ste, kinetic regime at higher substrate concentrations. Direct agreement was observed between the kinetic behavior at rotating disk electrodes and in thin-layer flow cells. Application of the modified electrodes for the determination of iron in pharmaceutical formulations and the long term stability of the electrodes are investigated. The results obtained are compared with those reported for the analogous metallopolymer [Os(bipy)2(PVP)10Cl]Cl, where PVP is poly-4-vinylpyridine.

Additional Material: 7 Ill.