Optical sensing schemes for Prussian Blue/Prussian White film system

Koncki, Robert; Lenarczuk, Tomasz; Głąb, Stanisław

doi:10.1016/s0003-2670(00)01144-2

Cited by 45 publications

(53 citation statements)

References 27 publications

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“…For example, reversible probes were developed [69][70][71][72][73] which can be oxidized and reduced in vivo enabling visualization of the cellular redox state. While this does not yield H 2 O 2 concentration data, it enables studies of the dynamic balance between oxidants and reductants.…”

Section: Oxidative Cleavage-based Probesmentioning

confidence: 99%

“…Such detection systems have a true sensor-like performance but still need to be 'externally' regenerated, and thus quantify an accumulative H 2 O 2 concentration over deployment time. One example is the Prussian Blue (PB)-Prussian White (PW) redox pair, where PW is oxidized by H 2 O 2 to PB (or K 3 Fe(CN) 6 [70]) exhibiting a strong shift in optical properties, which can then be regenerated by a reducing agent such as ascorbic acid [69,70]. Koren et al [69] use a highly photostable luminescent crystal coupled to the PB/PW pair, using the inner-filter effect to correlate changes in luminescence to changes in H 2 O 2 concentration (Figure 6).…”

Section: Redox Systemsmentioning

confidence: 99%

“…Koren et al [69] use a highly photostable luminescent crystal coupled to the PB/PW pair, using the inner-filter effect to correlate changes in luminescence to changes in H2O2 concentration ( Figure 6). However, Koncki et al [70] observed not only an optical response of PW to H 2 O 2 , but also to chromate, dichromate, permanganate, chlorine, bromine, iodine, hexacyanoferrate(III), Fe(III), as well as a slow response to O 2 resulting in a drifting baseline. Cross-sensitivities to K + , Na + , and pH were observed in PB films, and PB can be reduced to PW by H 2 S, ascorbic acid, and various mercapto-compounds [70].…”

Section: Redox Systemsmentioning

confidence: 99%

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Possibilities and Challenges for Quantitative Optical Sensing of Hydrogen Peroxide

2017

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Abstract:Hydrogen peroxide (H 2 O 2 ) plays a key role in many biological processes spanning from coral bleaching, over cell signaling to aging. However, exact quantitative assessments of concentrations and dynamics of H 2 O 2 remain challenging due to methodological limitationsespecially at very low (sub µM) concentrations. Most published optical detection schemes for H 2 O 2 suffer from irreversibility, cross sensitivity to other analytes such as other reactive oxygen species (ROS) or pH, instability, temperature dependency or limitation to a specific medium. We review optical detection schemes for H 2 O 2 , compare their specific advantages and disadvantages, and discuss current challenges and new approaches for quantitative optical H 2 O 2 detection, with a special focus on luminescence-based measurements. We also review published concentration ranges for H 2 O 2 in natural habitats, and physiological concentrations in different biological samples to provide guidelines for future experiments and sensor development in biomedical and environmental science.

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Section: Oxidative Cleavage-based Probesmentioning

confidence: 99%

Section: Redox Systemsmentioning

confidence: 99%

Section: Redox Systemsmentioning

confidence: 99%

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Possibilities and Challenges for Quantitative Optical Sensing of Hydrogen Peroxide

2017

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“…Chemical way is also applied. 17,19 The electrochemical deposition process that leads to the formation of the hybrid modified electrode on the Pt electrode surface needs to be carefully controlled. The fabrication of a chemically modified film electrode is easily controlled by using consecutive cyclic voltammetry (CV) synthetic procedure, in which an increase in the peak current of an appropriate redox couple of the modified film indicates that the film is formed.…”

Section: Introductionmentioning

confidence: 99%

“…The fabrication of a chemically modified film electrode is easily controlled by using consecutive cyclic voltammetry (CV) synthetic procedure, in which an increase in the peak current of an appropriate redox couple of the modified film indicates that the film is formed. 19 In our previous study, 4-aminoquinolidine (AQ) was polymerized in aqueous medium to give an electro active film (PAQ). Also, it was shown that the PAQ can be loaded by Ni 2+ ions to give stable polymer films with reasonable redox response.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Behavior of Hybrid Films Composed of Copper Hexacyanoferrate and Conducting Polymer

Hathoot¹

2011

Croat. Chem. Acta

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Abstract. Hybrid organic / inorganic films, composed of poly 4-aminoquinolidine (PAQ) matrix and Prussian blue -like copper hexacyanoferrate (CuHCFe) redox centers were prepared. Platinum disk (Pt) was used as a conductive substrate onto which the hybrid films (Pt/PAQ/CuHCFe) were electrodeposited by potential cycling. Electrochemical behavior of the modified electrode was well characterized using cyclic voltammetry technique. The hybrid film modified electrode showed improvement in the electrochemical response in aqueous and non aqueous media compared with the polymer film (PAQ) single layer. Moreover a good electrocatalytic activity towards the oxidation of hydroquinone (H 2 Q) was observed. In addition, the electrode exhibited a distinct advantage of good chemical and mechanical stability.

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Application of Prussian Blue Based Composite Film with Functionalized Organic Polymer to Construction of Enzymatic Glucose Biosensor

et al. 2003

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We describe and characterize an amperometric biosensor utilizing the electrocatalytic reduction of hydrogen peroxide at a glassy carbon electrode modified with a novel composite film of Prussian Blue and polypyrrole derivative, polymerized 4(pyrrole-1-yl) benzoic acid, overcoated with the covalently bound glucose oxidase enzyme. The addition of a functionalized organic component to Prussian Blue permits permanent attachment of an enzyme, exhibits an overall stabilizing effect, and it seems to support fast propagation of charge within the Prussian Blue based composite film. Preliminary diagnostic experiments have been done using cyclic voltammetry, chronocoulometry and rotating disk volatmmetry. The rate of hydrogen peroxide reduction at the composite film in the potassium containing phosphate buffer (pH 6) is expected to be very fast because the overall process is controlled by diffusion of hydrogen peroxide in solution. The fact that the reduction of enzymatically produced hydrogen peroxide proceeds at a fairly negative potential, 0 V (vs. SCE) (pH 6), makes the system largely free of common interferences (e.g., ascorbic acid or uric acid). The proposed biosensor permitted reproducible and reliable determinations of glucose in real (i.e., in pharmaceutical and food) samples also under the flow-injection analysis conditions. The detection limit and sensitivity have been found to be on the level of 1 Â 10 À5 mol dm À3 and 0.7 mA/1 mmol dm À3 (2.5 mA/cm 2 /1 mmol dm À3 ), respectively.

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Optical sensing schemes for Prussian Blue/Prussian White film system

Cited by 45 publications

References 27 publications

Possibilities and Challenges for Quantitative Optical Sensing of Hydrogen Peroxide

Possibilities and Challenges for Quantitative Optical Sensing of Hydrogen Peroxide

Electrochemical Behavior of Hybrid Films Composed of Copper Hexacyanoferrate and Conducting Polymer

Application of Prussian Blue Based Composite Film with Functionalized Organic Polymer to Construction of Enzymatic Glucose Biosensor

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