Prussian blue-based optical glucose biosensor in flow-injection analysis

Lenarczuk, Tomasz; Wencel, Dorota; Głąb, Stanisław; Koncki, Robert

doi:10.1016/s0003-2670(01)01289-2

Cited by 36 publications

(39 citation statements)

References 32 publications

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“…Therefore, when the rate of Cys-induced BG reduction (an alternative explanation of Eq. (2)) is faster than the electrochemical oxidation of PB, the OD change ( OD) at 690 nm can become a measure of [Cys], similar to those reported in PB-based optical sensors [32][33][34][35][36][37]. Fig.…”

Section: Voltabsorptometric Detection Of Cysteine At Pb/ftomentioning

confidence: 72%

“…The comprehensive discussions over PB-based biosensors can be found in the recent review articles [30,31]. In addition to electrochemical detection, many efforts had been made to develop optical sensors based on the photosynthesized PB/polymer composite film [32][33][34][35][36] or PB-immobilized beads [37]. In general, such a PB-based optical biosensor worked through the absorptometric detection of analyte-induced PB/PW interchange.…”

Section: Introductionmentioning

confidence: 99%

“…For example, the PB film chemically deposited on a non-conductive, transparent substrate could be reduced by a reductant like ascorbic acid [32][33][34]37] and thus exhibited a blue-to-colorless optical change; on the other hand, the colorless PW film could be oxidized to PB (blue state) by an oxidant like hydrogen peroxide [33,34]. This approach could be used to fabricate an optical glucose [35] and urea [36] biosensor for flow injection analysis, when enzymes were entrapped into the PB films. But, different from a typical amperometric sensor, the optical sensors utilized chemical method to regenerate the PB mediator in stead of applying a dc bias and might therefore elongate the recovery time before the next sensing experiment.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Multimode optoelectrochemical detection of cysteine based on an electrochromic Prussian blue electrode☆

Chen

2008

Sensors and Actuators B: Chemical

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Section: Voltabsorptometric Detection Of Cysteine At Pb/ftomentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multimode optoelectrochemical detection of cysteine based on an electrochromic Prussian blue electrode☆

Chen

2008

Sensors and Actuators B: Chemical

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“…One method to detect glucose is to use Prussian blue, an indicator dye that is sensitive to hydrogen peroxide. As glucose is converted to peroxide and another by-product, the optical properties of Prussian blue also changes due to its interaction with peroxide [107]. Another novel approach to detect glucose is to use the absorbance band shift of glucose oxidase itself.…”

Section: B Colorimetrymentioning

confidence: 99%

Sensor Technologies for Monitoring Metabolic Activity in Single Cells—Part I: Optical Methods

2004

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A review of optical, chemical, and biological sensors to detect metabolic activity at the single-cell level is presented in the context of the development of lab-on-a-chip research instrumentation. The sensors reviewed include optical sensors, at both research and commercial levels, that can optically detect intracellular metabolites including adenosine triphosphate, nicotinamide-adenine dinucleotide, reduced flavin adenine dinucleotide, and other metabolites, including oxygen, carbon dioxide, and glucose. Methods to optically detect pH changes which are a general indicator of activity in extracellular space are also briefly reviewed. Performance metrics such as sensitivity, sensor size, drift, time response, and sensing range are included when available. Highly suitable optical sensor technologies for monitoring cellular metabolic activity include luminescent (fluorescent, phosphorescent, and chemiluminescent) and colorimetric optical probes. Different approaches to extracting luminescent and colorimetric information are reviewed, including benchtop techniques, fiber-optic approaches, and the use of probes encapsulated by biologically localized embedding. A brief discussion of alternate optical sensor technologies, such as surface plasmon resonance and infrared absorption spectroscopy, is also presented.

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“…[7][8][9][10][11][12] Among these, spectroscopy has been selected because it avoids the application of voltage and the use of selective membranes. Spectroscopic methods can be further subdivided into chemiluminescence, 7 spectrofluorometry, 8,9 and spectrophotometry.…”

Section: Introductionmentioning

confidence: 99%

Fiber optic glucose biosensor

2006

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A fiber-optic biosensor for glucose concentration detection has been designed, based on electrostatic self-assembly. The end face of a multimode fiber is coated with poly͑allylamine hydrochloride͒ in combination with Prussian blue and the enzyme glucose oxidase. The glucose concentration that can be measured ranges between 0.06 and 2 mM. The initial velocity of change of the output biosensor signal has been found to be linear in the glucose concentration. The sensor recovers after immersion in ascorbic acid. The pH values analyzed range between 5 and 7. The sensitivity of the device has been increased by adjusting the number of bilayers and by adding some capping bilayers at the end of the structure.

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Prussian blue-based optical glucose biosensor in flow-injection analysis

Cited by 36 publications

References 32 publications

Multimode optoelectrochemical detection of cysteine based on an electrochromic Prussian blue electrode☆

Multimode optoelectrochemical detection of cysteine based on an electrochromic Prussian blue electrode☆

Sensor Technologies for Monitoring Metabolic Activity in Single Cells—Part I: Optical Methods

Fiber optic glucose biosensor

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