Development of an iridium-based pH sensor for bioanalytical applications

被引：21

作者：

Bause, S. ^{[1
,2
]}

Decker, M. ^{[1
]}

Gerlach, F. ^{[1
]}

Naether, J. ^{[3
]}

Koster, F. ^{[3
]}

Neubauer, P. ^{[2
]}

Vonau, W. ^{[1
]}

机构：

[1] Kurt Schwabe Inst Mess & Sensortech eV Meinsberg, Kurt Schwabe Str 4, D-04736 Waldheim, Germany

[2] Tech Univ Berlin, Chair Bioproc Engn, Ackerstrae 76, D-13355 Berlin, Germany

[3] Hsch Mittweida, Univ Appl Sci, Fachgrp Fertigungs & Werkstofftech, Tech Pl 17, Mittweida, Germany

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2018年 / 22卷 / 01期

关键词：

Iridium oxide; Electrodeposition; pH sensor; Biocompatibility; Bioanalytical application; OXIDE-FILMS; THIN-FILM; ALKALINE-SOLUTIONS; CELL-CULTURE; ELECTRODES; STIMULATION; FABRICATION; DEPOSITION; PALLADIUM; OXIDATION;

D O I：

10.1007/s10008-017-3721-1

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A new iridium-based planar pH sensor for bioanalytical purposes is introduced. The fabrication of the sensor was carried out by a two-stage coating process of different iridium solutions on a platinum thick film surface. The pH response behaviour and the Nernstian characteristics of the double-layer electrode exhibited better results than the single iridium depositions. An almost theoretical Nernstian slope could be obtained as well as a pH response time of about 3 to 5 min in a pH range of 4.01 to 9.18. Furthermore, a biofilm growth of different microorganisms onto the iridium-coated electrodes could be achieved. Afterwards, the viability of the microorganisms was demonstrated via cell plating studies.

引用

页码：51 / 60

页数：10

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