Graphene oxide directed in-situ deposition of electroactive silver nanoparticles and its electrochemical sensing application for DNA analysis

Gao, Ningning; Gao, Feng; He, Song; Zhu, Qionghua; Huang, Jinhong; Tanaka, Hidekazu; Wang, Qingxiang

doi:10.1016/j.aca.2016.11.033

Cited by 52 publications

(20 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…101 Alternatively, graphene oxides can be used as a catalytic platform to assist in the in situ formation of Ag or Prussian blue nanoparticles. 102,103 Here, graphene oxide interacts with the unhybridized capture ssDNA via π-π interactions and amplifies the signal when no target analytes are present in the sample, i.e. a 'signal-off' sensor.…”

Section: Nanoreportersmentioning

confidence: 99%

“…a 'signal-off' sensor. 102,103 Direct detection of the nanoparticle labels also offers the possibility of multiplexing signals by incorporating nanomaterials with distinguishable redox peaks. For example, Merkoçi et al have pioneered the use of quantum dots for multiplexed electrochemical biosensing.…”

Section: Nanoreportersmentioning

confidence: 99%

“…133 For signal amplification, 2D nanosheets have been used as high surface area cargos for redox markers, such as graphene and graphene oxide, and catalysts, such as carbon nitride for redox cycling and metallization. 71,80,102,103 Metal organic frameworks. MOFs have been considered as one the most versatile platforms for signal amplification.…”

Section: Materials Considerationsmentioning

confidence: 99%

See 2 more Smart Citations

Nanomaterials for molecular signal amplification in electrochemical nucleic acid biosensing: recent advances and future prospects for point-of-care diagnostics

Bezinge

Suea‐Ngam

deMello

et al. 2020

Mol. Syst. Des. Eng.

View full text Add to dashboard Cite

show abstract

Section: Nanoreportersmentioning

confidence: 99%

Section: Nanoreportersmentioning

confidence: 99%

Section: Materials Considerationsmentioning

confidence: 99%

See 1 more Smart Citation

Nanomaterials for molecular signal amplification in electrochemical nucleic acid biosensing: recent advances and future prospects for point-of-care diagnostics

Bezinge

Suea‐Ngam

deMello

et al. 2020

Mol. Syst. Des. Eng.

View full text Add to dashboard Cite

show abstract

“…While the electrochemical synthesis of AgNPs is well established, the scheme presented herein enables particularly short deposition times, minimal solution preparation, and no requirement of an external linker or functionalizing ligand. Moreover, in situ tailoring of the nanoparticle surface chemistry resulted in an improved affinity and selectivity.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical monitoring of aflatoxin M1 in milk samples using silver nanoparticles dispersed on α‐cyclodextrin‐GQDs nanocomposite

Shadjou

Hasanzadeh

Heidar-poor

et al. 2018

J of Molecular Recognition

View full text Add to dashboard Cite

Aflatoxins are potential food pollutants produced by fungi. One of important toxins is aflatoxin M1 (AFM1). A great deal of concern is associated with AFM1 toxicity. In the present study, an innovative electrochemical interface for quantitation of AFM1 based on ternary signal amplification strategy was fabricated. In this work, silver nanoparticles was electrodeposited onto green and biocompatible nanocomposite containing α-cyclodextrin as conductive matrix and graphene quantum dots as amplification element. Therefore, a multilayer film based on α-cyclodextrin, graphene quantum dots, and silver nanoparticles was exploited to develop a highly sensitive electrochemical sensor for detection of AFM1. Fully electrochemical methodology was used to prepare a transducer on a glassy carbon electrode, which provided a high surface area toward sensitive detection of AFM1. The surface morphology of electrode surface was characterized by high-resolution field emission scanning electron microscope. The proposed sensing platform provides a simple tool for AFM1 detection. Under optimized condition, the calibration curve for AFM1 concentration was linear in 0.015mM to 25mM with low limit of quantification of 2μM. The practical analytical utility of the modified electrode was illustrated by determination of AFM1 in unprocessed milk samples.

show abstract

“…These nanoparticles have potential applications in drug delivery systems [9] biomedical [10,11] and electrochemical analysis. [12][13][14][15] Our study aimed to introduce a new sequential injection chemiluminescence analysis (SIA-CL) method for the determination of CRZ. The current method depends on the enhancement effect of silver nanoparticles (AgNPs) on luminol-ferricyanide system to produce a strong CL signal in alkaline medium.…”

Section: Figure 1: Chemical Structure Of Crizotinibmentioning

confidence: 99%

On-Line Sequential Chemiluminescence Detection of the Chemotherapy Crizotinib With Luminol-Potassium Ferricyanide/Silver Nanoparticles System in Pharmaceutical Preparations and Human Serum

El‐Tohamy¹

2017

WJPPS

View full text Add to dashboard Cite

Our study introduced an on-line sequential injection chemiluminescence analysis approach based on luminol-potassium ferricyanide/silver nanoparticles system for crizotinib detection. All experimental conditions were optimized and the developed method displayed a linear relationship over the concentration range of 0.01 -500 g mL -1 , (r = 0.999), with quantification/detection limit ratio = 0.01/0.003 g mL -1 . The suggested method was utilized to detect the selected drug in bulk powder, capsules and human serum. The drug was tested in the presence of different interfering species and no significant difference in the results was observed. Statistical analysis was carried out to compare the obtained data with those from other published articles and excellent agreement was found. The method was validated to ensure its suitability and its precision was tested using inter-day and intra-day assay.

show abstract

Graphene oxide directed in-situ deposition of electroactive silver nanoparticles and its electrochemical sensing application for DNA analysis

Cited by 52 publications

References 49 publications

Nanomaterials for molecular signal amplification in electrochemical nucleic acid biosensing: recent advances and future prospects for point-of-care diagnostics

Nanomaterials for molecular signal amplification in electrochemical nucleic acid biosensing: recent advances and future prospects for point-of-care diagnostics

Electrochemical monitoring of aflatoxin M1 in milk samples using silver nanoparticles dispersed on α‐cyclodextrin‐GQDs nanocomposite

On-Line Sequential Chemiluminescence Detection of the Chemotherapy Crizotinib With Luminol-Potassium Ferricyanide/Silver Nanoparticles System in Pharmaceutical Preparations and Human Serum

Contact Info

Product

Resources

About