Ion Transport in Asymmetric Artificial Membranes Mediated by Neutral Carriers
Valuable information on the selectivity behavior and the response mechanisms of analytically relevant neutral carrier membrane electrodes has been obtained from ion transport studies performed on the corresponding cation-selective membranes [9,10,15,16]. In electrodialysis experiments, the permeation of cations was induced by a transmembrane potential gradient, whereas in zero current countertransport systems, cations were driven by an oppositely directed flow of hydrogen ions, as induced by a pH gradient. The selectivity of ion transport was usually found to correlate with the potentiometric ion selectivity of the corresponding membrane electrodes [9, 10, 15, 16]. So far, virtually all experiments have concentrated on homogeneous PVC membranes.
KeywordsPermeability Entropy Migration Phthalate Diamide
Unable to display preview. Download preview PDF.
- 2.Deutsch DH (1981) Can the second law of thermodynamics be circumvented. Am Lab 13 (5): 54–65Google Scholar
- 5.Greco FA (1983) On the 2nd law of thermodynamics: a summary of the replies to Deutsch’s article. Int Lab 13 (1): 38–47Google Scholar
- 6.Ion transport across biological membranes and its control (1983) International workshop, Maria Laach, Germany, 25–27 Sept 1983Google Scholar
- 7.Köhne W, Deuticke B (1983) Incorporation of band 3 protein into lipid vesicles: influence of the phospholipid on anion transport. In: International Workshop, Maria Laach, Germany, 25–27 Sept 1983, pp 18–19Google Scholar
- 8.Krämer R (1983) The reconstituted ADP/ATP-carrier from mitochondria: functional and structural aspects of its two states of orientation. In: International Workshop, Maria Laach, Germany, 25–27 Sept 1983, pp 20–21Google Scholar
- 9.Morf WE (1981) The principles of ion-selective electrodes and of membrane transport. Akademiai Kiadö, Budapest; Elsevier, AmsterdamGoogle Scholar
- 11.Morf WE, Ammann D, Bissig R, Pretsch E, Simon W (1979) Cation selectivity of neutral macro- cyclic and nonmacrocyclic complexing agents in membranes. In: Izatt RM, Christensen JJ (eds) Progress in macrocyclic chemistry, vol. 1. Wiley, New York, pp 1–61Google Scholar
- 12.Morf WE, Ruprecht H, Oggenfuss P, Simon W (1985) Ion transport in asymmetric artificial membranes mediated by neutral carriers. (In preparation)Google Scholar
- 13.Schwarz W, Grygorcyk R (1983) Patch-clamp analysis of Ca2+-activated K+ channels in the membranes of human erythrocytes. In: International Workshop, Maria Laach, Germany, 25–27 Sept 1983, pp 36–37Google Scholar
- 14.Simon W, Morf WE, Meier PC (1973) Specificity for alkali and alkaline earth cations of synthetic and natural organic complexing agents in membranes. In: Dunitz JD et al. (eds) Alkali metal complexes with organic ligands. Springer, Berlin Heidelberg New York, pp 113–160 (Structure and bonding, vol 16)CrossRefGoogle Scholar
- 15.Simon W, Morf WE, Pretsch E, Wuhrmann P (1975) Synthetic neutral ionophores for Ca2+ and their transport properties in bulk membranes. In: Carafoli E, Clementi F, Drabikowski W, Margreth A (eds) Calcium transport in contraction and secretion. North-Holland, Amsterdam, pp15–23Google Scholar