Highlights of 20 years of electrochemical measurements of exocytosis at cells and artificial cells
Artikel i vetenskaplig tidskrift, 2011
Advances in electrochemical methodology over the past 30 years have allowed chemical measurements to be made with decreasing amounts of analyte and at smaller spatial dimensions. This has allowed the investigation of single cells and single vesicles in cells either during release of chemical transmitter or separately. The cellular event called exocytosis can be measured with amperometry or cyclic voltammetry as discovered by Wightman and first published in 1990. In addition, the measurement of vesicle contents with electrochemistry is a new approach we have termed electrochemical cytometry. This involves isolation of intact vesicles, separation of the vesicles, and then lysing followed by coulometric analysis of the electroactive vesicle content. In this review, we will highlight work done by us and by others to discuss measurements of exocytosis at single cells and measurements at artificial cell models for studying the biophysical properties of vesicle membrane dynamics and lipid nanotubes connecting artificial cells using electrochemical methods.
v15
p60
fusion pore
1994
v86
catecholamine
planorbis-corneus
en gy
Carbon-fiber amperometry
ow rh
secretion
v66
Vesicle
en tk
v356
adrenal chromaffin cells
p3031
andler de
Lipid nanotube
patch amperometry
p7747
Artificial cell
pheochromocytoma pc12 cells
1995
transmitter release
plasma-membrane
1992
quantal size
p666
1980
dense core
Electrochemical cytometry
vesicles
Neurotransmitter
Exocytosis
Författare
Ann-Sofie Cans
Chalmers, Kemi- och bioteknik, Analytisk kemi
Andrew Ewing
Chalmers, Kemi- och bioteknik, Analytisk kemi
Journal of Solid State Electrochemistry
1432-8488 (ISSN) 14330768 (eISSN)
Vol. 15 7-8 1437-1450Ämneskategorier
Analytisk kemi
DOI
10.1007/s10008-011-1369-9