TY - JOUR
T1 - Constant-phase-mode operation of the light-addressable potentiometric sensor
AU - Miyamoto, Ko Ichiro
AU - Wagner, Torsten
AU - Mimura, Shuhei
AU - Kanoh, Shin'Ichiro
AU - Yoshinobu, Tatsuo
AU - Schöning, Michael J.
N1 - Funding Information:
This work was supported by a Grant-in-Aid for Scientific Research (contract No. 19350036) from the Japan Society for the Promotion of Science (JSPS) . K.M. acknowledges the financial support from Tateisi Science and Technology Foundation and a Grant-in-Aid for Scientific Research (contract No. 19360038) from JSPS. T.Y. acknowledges the financial support of Takahashi Industrial and Economic Research Foundation .
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/6/20
Y1 - 2011/6/20
N2 - The constant-phase-mode operation of the light-addressable potentiometric sensor (LAPS) is proposed and demonstrated. In this new operation mode, the temporal change and the spatial distribution of the analyte concentration are recorded in the form of the bias voltage applied to the LAPS sensor plate, which is servo-controlled to maintain the phase of the photocurrent at a constant value with respect to the light modulation. The constant-phase-mode LAPS is advantageous for its wider measurement range and reduction of artifacts.
AB - The constant-phase-mode operation of the light-addressable potentiometric sensor (LAPS) is proposed and demonstrated. In this new operation mode, the temporal change and the spatial distribution of the analyte concentration are recorded in the form of the bias voltage applied to the LAPS sensor plate, which is servo-controlled to maintain the phase of the photocurrent at a constant value with respect to the light modulation. The constant-phase-mode LAPS is advantageous for its wider measurement range and reduction of artifacts.
KW - Chemical imaging sensor
KW - LAPS
KW - Light-addressable potentiometric sensor
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U2 - 10.1016/j.snb.2010.01.004
DO - 10.1016/j.snb.2010.01.004
M3 - Article
AN - SCOPUS:79955649974
SN - 0925-4005
VL - 154
SP - 119
EP - 123
JO - Sensors and Actuators B: Chemical
JF - Sensors and Actuators B: Chemical
IS - 2
ER -