Controlled synthesis of functional Ag, Ag–Au/Au–Ag nanoparticles and their Prussian blue nanocomposites for bioanalytical applications

Pandey, Prem C.; Singh, Richa; Pandey, Yashashwa

doi:10.1039/c5ra06251a

Cited by 25 publications

(6 citation statements)

References 66 publications

(81 reference statements)

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“…Unfortunately, the hydrolysis of PB in neutral or alkaline solutions makes the signal of PB-based electrochemical sensors decrease, which greatly limits the application of PB in sensors . Therefore, introduction of active nanomaterial-based supports to stabilize PB received more and more attention, such as graphene, carbon nanotubes (CNTs), noble metallic nanoparticles (such as gold and silver nanoparticles), metal oxides (such as Fe 3 O 4 and TiO 2 ), , and so on. Although great advances in support materials for PB have been achieved, it is still highly required to explore new substrates to stabilize PB and improve its performance with an easy method.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of a MoS₂–Prussian Blue Nanocube Nanohybrid-Based Electrochemical Sensing Platform for Hydrogen Peroxide and Carcinoembryonic Antigen Detection

Su¹,

Han²,

Lu³

et al. 2017

ACS Appl. Mater. Interfaces

134

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Herein, an electrochemical detection platform was designed based on a Prussian blue nanocube-decorated molybdenum disulfide (MoS-PBNCs) nanocomposite. Shape-controlled and high-dispersion PBNCs were supported on the MoS nanosheet surface, which would be simply controlled by varying the experimental conditions. Expectedly, such obtained MoS-based nanocomposites possessed excellent electrocatalytic ability, which could be employed to construct an electrochemical sensor for nonenzymatic hydrogen peroxide (HO) detection. More interestingly, MoS-PBNCs nanocomposites could be utilized to construct a sensor for label-free detection of carcinoembryonic antigen (CEA). The electrochemical response of the MoS-based immunosensor was linear with the CEA concentration ranging from 0.005 to 10 ng mL. Moreover, the detection limit was calculated to be 0.54 pg mL. The acceptable selectivity and high stability made such immunosensors detect CEA in human serum with satisfactory results. All data indicated that this MoS-PBNCs nanocomposite may be a promising electrochemical sensing platform for the detection of chemical and biological molecules.

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Section: Introductionmentioning

confidence: 99%

Facile Synthesis of a MoS₂–Prussian Blue Nanocube Nanohybrid-Based Electrochemical Sensing Platform for Hydrogen Peroxide and Carcinoembryonic Antigen Detection

Su¹,

Han²,

Lu³

et al. 2017

ACS Appl. Mater. Interfaces

134

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“…Optimized geometry of the molecule with xyz coordinates is shown in Figure 4. The strong plasmonic activity (LSPR) of APTMS capped AgNPs [69] closely coincides with excitation maxima of fluorescein leading to significant metal‐fluorophore interactions. Figure 5 shows the electron micrographs precursor concentration dependent silver nanoclusters (AgNP 1 and AgNP 2 ).…”

Section: Resultsmentioning

confidence: 71%

“…Optimized geometry of the molecule with xyz coordinates is shown in Figure 4. The strong plasmonic activity (LSPR) of APTMS capped AgNPs [69] closely coincides with excitation maxima of fluorescein leading to significant metal-fluorophore interactions. [70] XRD difractograms (Figure 5i and j) of silver nanoparticles (AgNP1 and AgNP2) are synergistic with the corresponding particle sizes.…”

Section: Aptms Functionalized Agnps and Steady State Emission Analysismentioning

confidence: 73%

“…The fluorescence intensity was routinely enhanced with a remarkable 40 folds amplification in signal, on increasing levels of APTMS. PB‐MOF is the colloidal solution of binuclear iron (III) hexacyanoferrate (II), synthesized via silanization of ferricyanide [Fe(CN) 6 ] 3− , using APTMS [69] . A corona shell of ampiphilic APTMS self assembles the PB‐MOF against the APTMS functionalized AgNPs [70] treated fluorescein molecules (Figure 8c).…”

Section: Resultsmentioning

confidence: 99%

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Photosensitizer Modulated Turn – off Fluorescence System and Molecular Logic Functions for Selective Detection of Arsenic (III)

2020

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The As 3 + directed selective Fluorimetric turn 'OFF' sensor based on dual functions of fluorophore-metal interaction and electron transfer between the emitter and light sensitizing moiety (PB-MOF) has been formulated. Intermolecular charge transfer dependent changes in emission intensity were recorded owing to the metal ion-induced modifications in coordinating potentials of PB-MOF. Fluorescein shows successive enhancement in emission maxima (λ em = 520 nm) due to intermolecular activation in the presence of AgNPs and PB-MOF. While interaction with As 3 + leads to non radiative energy transfer at λ em = 520 in methanol, and the action of As 3 + is selective over other ions

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“…What's more, the working electrode potential based on PB/PBA (about 0 V) can eliminate the interference of coexisting substances. [55] Therefore, PB/PBA has become excellent sensors for many analytes, such as glucose, [56,57] H 2 O 2 , [58,59] ascorbic acid [60] and hydrazine. [61]…”

Section: Application Of Pb/pba-based Materials As Electrochemical Sensormentioning

confidence: 99%

Synthesis and Applications of Prussian Blue and Its Analogues as Electrochemical Sensors

Ying

Chen

et al. 2021

ChemPlusChem

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Prussian blue (PB) and its analogue (PBA) are a kind of representative cyanide‐based coordination polymer. They have received enormous research interest and have shown promising applications in the electrochemical sensing field due to their excellent electrochemical activity and unique structural characteristics including open framework structure, high specific surface area, and adjustable metal active sites. In this review, we summarize the latest research progress of PB/PBA as an electrochemical sensor in detail from three aspects: fabrication strategy, synthesis method and electrochemical sensor application. For the fabrication strategy, we discussed different fabrication methods containing the combination of PBA and carbon materials, metal nanoparticles, polymers, etc., respectively, as well as their corresponding sensing mechanism for improving performance. We also presented the synthesis methods of PB/PBA materials in detail, such as: coprecipitation, hydrothermal and electrodeposition. In addition, the effects of different methods on the morphology, particle size and productivity of PB/PBA materials are also concluded. For the application of electrochemical sensors, the latest progress of such materials as electrochemical sensors for glucose, H2O2, toxic compounds, and biomolecules have been summarized. Finally, we conclude remaining challenges of PB/PBA‐based materials as electrochemical sensors, and provide personal perspectives for future research in this field.

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Controlled synthesis of functional Ag, Ag–Au/Au–Ag nanoparticles and their Prussian blue nanocomposites for bioanalytical applications

Cited by 25 publications

References 66 publications

Facile Synthesis of a MoS₂–Prussian Blue Nanocube Nanohybrid-Based Electrochemical Sensing Platform for Hydrogen Peroxide and Carcinoembryonic Antigen Detection

Facile Synthesis of a MoS₂–Prussian Blue Nanocube Nanohybrid-Based Electrochemical Sensing Platform for Hydrogen Peroxide and Carcinoembryonic Antigen Detection

Photosensitizer Modulated Turn – off Fluorescence System and Molecular Logic Functions for Selective Detection of Arsenic (III)

Synthesis and Applications of Prussian Blue and Its Analogues as Electrochemical Sensors

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Controlled synthesis of functional Ag, Ag–Au/Au–Ag nanoparticles and their Prussian blue nanocomposites for bioanalytical applications

Cited by 25 publications

References 66 publications

Facile Synthesis of a MoS2–Prussian Blue Nanocube Nanohybrid-Based Electrochemical Sensing Platform for Hydrogen Peroxide and Carcinoembryonic Antigen Detection

Facile Synthesis of a MoS2–Prussian Blue Nanocube Nanohybrid-Based Electrochemical Sensing Platform for Hydrogen Peroxide and Carcinoembryonic Antigen Detection

Photosensitizer Modulated Turn – off Fluorescence System and Molecular Logic Functions for Selective Detection of Arsenic (III)

Synthesis and Applications of Prussian Blue and Its Analogues as Electrochemical Sensors

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Product

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Facile Synthesis of a MoS₂–Prussian Blue Nanocube Nanohybrid-Based Electrochemical Sensing Platform for Hydrogen Peroxide and Carcinoembryonic Antigen Detection

Facile Synthesis of a MoS₂–Prussian Blue Nanocube Nanohybrid-Based Electrochemical Sensing Platform for Hydrogen Peroxide and Carcinoembryonic Antigen Detection