Prussian Blue Dispersed Sphere Catalytic Labels for Amplified Electronic Detection of DNA

Suwansa-ard, Siriwan; Xiang, Yun; Bash, R.; Thavarungkul, Panote; Kanatharana, Proespichaya; Wang, Joseph

doi:10.1002/elan.200704063

Cited by 14 publications

(9 citation statements)

References 10 publications

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“…3,16 In previous studies, they have been demonstrated to be applicable to the sensing of hydrogen peroxide at a low applied potential, allowing the integration of oxidase enzymes while reducing other electrochemical interferents. 3,15,25,[29][30][31][32][33][34][35][36][37][38] Other Prussian blue-based biosensors, such as glucose, 25,[39][40][41][42][43][44][45][46][47][48][49][50][51] pH, 22 lactate, 38,[52][53][54] antigen, 55 cholesterol, 56,57 DNA, 24,54,58 glycan, 59 antihypertensive drug, 23 carcinoma antigen, 60 ion, 24,61 uric acid, 62 ascorbic acid, 63 and nicotinamide adenine dinucleotide (NADH) [64]…”

Section: Introductionmentioning

confidence: 99%

New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications

et al. 2015

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Prussian blue (PB), the oldest synthetic coordination compound, is a classic and fascinating transition metal coordination material. Prussian blue is based on a three-dimensional (3-D) cubic polymeric porous network consisting of alternating ferric and ferrous ions, which provides facile assembly as well as precise interaction with active sites at functional interfaces. A fundamental understanding of the assembly mechanism of PB hetero-interfaces is essential to enable the full potential applications of PB crystals, including chemical sensing, catalysis, gas storage, drug delivery and electronic displays. Developing controlled assembly methods towards functionally integrated hetero-interfaces with adjustable sizes and morphology of PB crystals is necessary. A key point in the functional interface and device integration of PB nanocrystals is the fabrication of hetero-interfaces in a well-defined and oriented fashion on given substrates. This review will bring together these key aspects of the hetero-interfaces of PB nanocrystals, ranging from structure and properties, interfacial assembly strategies, to integrated hetero-structures for diverse sensing.

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Section: Introductionmentioning

confidence: 99%

New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications

et al. 2015

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“…27 However, PB/CTAB films did not provide sharp current responses in the presence of Na + because the channel was not wide enough to allow hydrated Na + to enter into the matrix. 28 nanomaterials such as carbon nanotubes, 11 magnetite, 29 polystyrene spheres, 30 CdS, 31 Au, 32,33 or Pt. 34 The introduction of nanostructured hybrid materials increases the surface to volume ratio and the surface activity, which leads to a wider pH range, improved electrochemical stability, and excellent electrochemical response.…”

Section: Introductionmentioning

confidence: 99%

Improved Sensing in Physiological Buffers by Controlling the Nanostructure of Prussian Blue Films

Wang

Zhou

et al. 2010

J. Phys. Chem. C

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The electrochemical properties of a Prussian blue (PB) electrode were improved by introducing cetyltrimethylammonium bromide (CTAB) and Au nanoparticles (AuNPs) into PB films. The novel hybrid films (PB/ CTAB/AuNPs) were fabricated by electrodepositing PB and AuNPs in the presence of CTAB. The electrochemical behavior of the hybrid film in some supporting electrolyte (cations for the K + , Na + , or K + / Na + ) was investigated in detail, and well-defined and reversible voltammetric responses were obtained in Na + -based electrolytes. The catalytic activity of the PB/CTAB/AuNPs electrode toward hydrogen peroxide (H 2 O 2 ) reduction at a neutral pH was also investigated, and the results indicated that the electrochemical reduction of H 2 O 2 in the presence of physiological levels of Na + was superior to that of a PB-modified electrode. Moreover, the PB/CTAB/AuNPs electrode exhibited good performance, a low detection limit (0.1 µM), and high stability at a wide range of concentrations (0.882-195 µM). To determine the performance of PB nanocomposite electrodes in Na + -based phosphate buffers, an amperometric biosensor with a PB/CTAB/ AuNPs electrocatalyst was developed. To fabricate this sensor, the enzyme was immobilized in sol-gel and was electrodeposited onto a PB nanocomposite film. The results indicated that the biosensor can be used at a wide range of concentrations (20-400 µM) and possesses a low detection limit (7 µM) for glucose. These characteristics demonstrate that PB nanocomposite film can be used as an electron mediator for biosensors in potassium-free phosphate buffers.

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“…Prussian blue, a dye with long history, has been widely used in many fields such as optical physics, magnetism, and electrochemical for its excellent properties. [1][2][3] Prussian blue, certificated by Food and Drug Administration for treating thallium radiation poisoning, also has been used as a conventional drug in hospital. 4 In recent years, Prussian blue nanoparticles (PBNPs) have attracted much attention due to their excellent photothermal and imaging abilities and have been widely used in biomedical fields such as biosensor, cancer photothermal therapy, and magnetic resonance (MR) imaging.…”

Section: Introductionmentioning

confidence: 99%

Toxicological evaluation of Prussian blue nanoparticles after short exposure of mice

Chen

Wang

et al. 2016

Hum Exp Toxicol

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Prussian blue nanoparticle (PBNP), a new type of theranostic nanomaterial, had been used for cancer magnetic resonance imaging and photothermal therapy. However, their long-term toxicity after short exposure in vivo was still unclear. In this study, we investigated the dynamic changes of the biochemical and immunity indicators of mice after PBNPs injection through tail vein. Histological results showed that the PBNPs were mainly accumulated in liver and spleen. In the spleen, we found the frequency of T cells was starting to decrease after 1 day of PBNPs injection, but then slowly recovered to normal level after 60 days of injection. Meanwhile, the frequency of T cells in the blood was firstly decreased after the PBNPs injection, and then the T cell frequency kept increasing and recovered back to normal levels after 7 days of injection. The serum indexes of liver functions (alanine transaminase, aspartate transaminase, total bilirubin, and alkaline phosphatase) increased rapidly to a relatively high level only after 1 h of injection, which meant certain acute liver damage, but these indexes were gradually decreased to normal levels after 60 days of injection. These results indicate that PBNPs have acute toxicity in vivo, however, their long-term toxicity after short-time exposure is low, which might provide guidance for further applications of PBNPs in future.

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Prussian Blue Dispersed Sphere Catalytic Labels for Amplified Electronic Detection of DNA

Cited by 14 publications

References 10 publications

New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications

New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications

Improved Sensing in Physiological Buffers by Controlling the Nanostructure of Prussian Blue Films

Toxicological evaluation of Prussian blue nanoparticles after short exposure of mice

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