Application of Gold Nanoparticles for Electrochemical DNA Biosensor

Mohammed, Ahmed Mishaal; Ruslinda, A. Rahim; Ibraheem, Ibraheem J.; Loong, Foo Kai; Hisham, Hasrul; Hashim, U.; Al‐Douri, Y.

doi:10.1155/2014/683460

Cited by 36 publications

(13 citation statements)

References 27 publications

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“…Because of their potential risks to the environment and public health, the fate and transport of ENPs in porous media have been studied intensively in the literature. [36,153,154] ZnO sunscreens, cosmetics, wide bandgap semiconductor, UV-light-emitting diodes (LEDs), lasers, solar cells, field-emission displays, and gas sensors [155][156][157][158] Ag catalyst, biosensors, food containers, paints, printer inks ,textiles, and antibacterial detergents [159][160][161][162][163][164][165] Au printer inks , catalyst, and biosensors [166][167][168][169] Fe-based (NZVI, Abscissa (x) and ordinate (φ) represent distance and surface potential respectively; φ 0 denotes the potential between nanoparticle core and solution; ζ and ζ' denote the surface potentials before and after increasing the ionic strength and ζ'<ζ).…”

Section: Discussionmentioning

confidence: 99%

Review of key factors controlling engineered nanoparticle transport in porous media

Wang

Gao

De-shan

2016

Journal of Hazardous Materials

145

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Nanotechnology, an emerging technology, has witnessed rapid development in production and application. Engineered nanomaterials revolutionize the industry due to their unique structure and superior performance. The release of engineered nanoparticles (ENPs) into the environment, however, may pose risks to the environment and public health. To advance current understanding of environmental behaviors of ENPs, this work provides an introductory overview of ENP fate and transport in porous media. It systematically reviews the key factors controlling their fate and transport in porous media. It first provides a brief overview of common ENPs in the environment and their sources. The key factors that govern ENP transport in porous media are then categorized into three groups: (1) nature of ENPs affecting their transport in porous media, (2) nature of porous media affecting ENP transport, and (3) nature of flow affecting ENP transport in porous media. In each group, findings in recent literature on the specific governing factors of ENP transport in porous media are discussed in details. Finally, this work concludes with remarks on the importance of ENP transport in porous media and directions for future research.

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Section: Discussionmentioning

confidence: 99%

Review of key factors controlling engineered nanoparticle transport in porous media

Wang

Gao

De-shan

2016

Journal of Hazardous Materials

145

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“…To enhance the signals of responses and improve sensitivity of biosensors several strategies involving nanomaterials have been performed: nanoparticles (metals, magnetic particles), fluorescent probes; carbon nanotubes, graphene, biotin/avidin interactions, amplification systems (e.g. rolling circle amplification-RCA and branched DNA) [155][156][157][158][159][160][161][162][163][164][165][166].…”

Section: Dna Hybridisation Nanobiosensorsmentioning

confidence: 99%

Electrospinning-Based Nanobiosensors

Cesare

Macagnano

2015

Electrospinning for High Performance Sensors

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Biological interactions in biosensors occur through different mechanisms, on the basis of the type of biological receptor elements employed therein that confer the biological specificity to the biosensors themselves (biocatalytic, biocomplexing or bioaffinity biosensors). The use of different transduction systems (amperometric, potentiometric, field-effect transistors, piezometric and conductometric) defines the mode of detection. The interest and relevance of nanomaterials in the fabrication of nanobiosensors lie in their extraordinary properties that make them ideally suited and very promising for sensing applications. The resulting nanobiosensors are capable of sensing analytes in traces with fast, precise and accurate biological identification through miniaturised and easy to use systems. These advanced sensors are also characterised by lower detection limits, higher sensitivity values and high stability, and can further offer multi-detection possibilities. These exceptional features make nanobiosensors as the favourite tools in quality control, food safety, and traceability for their capacity of revealing and warning people against the presence of pathogens, toxins and pollutants, as well as bioterrorism agents. Despite the outstanding properties of these nanobiosensors, however, the efficiency of the biorecognition agent and the number of biorecognition sites available for interacting with target analytes can limit the sensitivity of this kind of sensors. The number of available biorecognition sites is directly related to the surface area of the sensor. Electrospinning technology can significantly increase the sensitivity of biosensors by replacing the typical planar interactive surface of conventional biosensors with a mat of electrospun nonwoven nanofibres, thereby taking advantage of the ultrahigh surface area offered by electrospun nanofibres. Moreover, adjusting the electrospinning process to produce

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Section: Dna Hybridisation Nanobiosensorsmentioning

confidence: 99%

Electrospinning for High Performance Sensors

Macagnano¹,

Zampetti²,

Kny³

2015

NanoScience and Technology

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The series NanoScience and Technology is focused on the fascinating nano-world, mesoscopic physics, analysis with atomic resolution, nano and quantum-effect devices, nanomechanics and atomic-scale processes. All the basic aspects and technology-oriented developments in this emerging discipline are covered by comprehensive and timely books. The series constitutes a survey of the relevant special topics, which are presented by leading experts in the field. These books will appeal to researchers, engineers, and advanced students.More information about this series at

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Application of Gold Nanoparticles for Electrochemical DNA Biosensor

Cited by 36 publications

References 27 publications

Review of key factors controlling engineered nanoparticle transport in porous media

Review of key factors controlling engineered nanoparticle transport in porous media

Electrospinning-Based Nanobiosensors

Electrospinning for High Performance Sensors

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