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)

Vol. 15 7-8 1437-1450

Ämneskategorier

Analytisk kemi

DOI

10.1007/s10008-011-1369-9