Microelectrode sensors for biomedical and environmental applications

Koudelka‐Hep, M.; Wal, P. D. van der

doi:10.1016/s0013-4686(00)00331-5

Cited by 57 publications

(26 citation statements)

References 79 publications

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“…Combining the advantages of microelectrode arrays (compact size, small sample volume, identical and geometrically well-defined elements, high sensitivity, and low cost) [41] with stripping methods and computer-controlled miniaturized instrumentation, micro-fabricated arrays have spun new applications in many different areas of electroanalysis, with the environmental and biomedical fields being the most active ones [42].…”

Section: Applications Of Microelectrode Arraysmentioning

confidence: 99%

Electroanalysis Utilizing Amperometric Microdisk Electrode Arrays

et al. 2007

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This article reviews the literature dealing with electroanalytical applications of ultramicroelectrode arrays over the past twenty years. A brief theoretical description of the mass transport mode governing their behavior is given, after which the main fabrication methods are described. The applications described in the later sections of this review range from conventional electroanalysis, namely trace metal stripping methods, using mercury modified arrays to more recent advances in the field of biosensors (enzymatic, immunosensors and nucleic acid based ones).

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Section: Applications Of Microelectrode Arraysmentioning

confidence: 99%

Electroanalysis Utilizing Amperometric Microdisk Electrode Arrays

et al. 2007

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“…The first, used in ref. [28] to describe chemical sensitivity of ISFETs with SiO 2 and Al 2 O 3 films, consists of appropriate modification of the electrolyte-oxide interface parameter β to fit experimental data: (12) where N s is the surface sites concentration, K a1 and K a2 are the dissociation constants for reactions (5) and (6), respectively. An alternative approach can be based on consideration of ion-exchange processes at the electrolyteZrO 2 interface, as will be discussed below in the case of Ta 2 O 5 films.…”

Section: Zirconium Oxide Filmsmentioning

confidence: 99%

“…Their advantages are small size, potential of mass production at low cost, and possibility of on-chip circuitry. Stimulated by the tendency of analytical chemistry towards smallvolume techniques as well as to in-time and spatially resolved measurements [11,12,13,14], silicon field-effect chemical and biosensors have received increased interest in the last 30 years.…”

Section: Introductionmentioning

confidence: 99%

Analytical characteristics and sensitivity mechanisms of electrolyte-insulator-semiconductor system-based chemical sensors?a critical review

Vlasov

Tarantov

Bobrov

2003

Analytical and Bioanalytical Chemistry

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Recent trends in research and development of electrolyte-insulator-semiconductor (EIS) field-effect chemical sensors (ion-selective field-effect transistors, light-addressable potentiometric sensors, capacitive EIS-sensors) with inorganic gate insulators (oxide, nitride and chalcogenide films) are reviewed. Physical properties of EIS systems and basic mechanisms of their chemical sensitivity are examined. Analytical characteristics and sensing mechanisms of EIS pH sensors with oxide and nitride films, as well as metal ions sensors with chalcogenide films, are critically discussed. Prospects of future research on EIS field-effect biosensors are briefly outlined.

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“…[1][2][3][4][5] For trace metal analysis the technique that is very well suited is stripping voltammetry in combination with microelectrodes. [6][7][8][9][10] These electrodes are characterized by high mass transport density, small double-layer capacitance, small ohmic drop and steady-state current response in unstirred solutions.…”

Section: Introductionmentioning

confidence: 99%