pp. 171-180
S&M2443 Research Paper of Special Issue https://doi.org/10.18494/SAM.2021.3067 Published: January 22, 2021 Alamethicin Channels as a Signal Transduction Element in an Immobilized Single Giant Unilamellar Vesicle [PDF] Hiroyuki Fukuda, Masaki Nitta, Misato Sakamoto, Atsushi Shoji, and Masao Sugawara (Received August 31, 2020; Accepted December 2, 2020) Keywords: single giant unilamellar vesicle, alamethicin channel, bovine serum albumin, avidin slip
A single giant unilamellar vesicle (GUV) functionalized with an anti-bovine serum albumin (BSA) antibody was immobilized on an avidin slip, and alamethicin channels were embedded as a signal transduction element for creating a channel-based molecular sensing system. The GUV sensor based on the membrane-bound anti-BSA antibody receptor exhibited alamethicin activities that reflected the binding of BSA (an analyte) at the membrane/solution interface. The normalized integrated current at −60 mV was able to be used as a measure of the amount of BSA in a solution. The quantification of BSA at pg/mL level was demonstrated.
Corresponding author: Atsushi ShojiThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Hiroyuki Fukuda, Masaki Nitta, Misato Sakamoto, Atsushi Shoji, and Masao Sugawara, Alamethicin Channels as a Signal Transduction Element in an Immobilized Single Giant Unilamellar Vesicle, Sens. Mater., Vol. 33, No. 1, 2021, p. 171-180. |