Au nanoparticle-modified DNA sensor based on simultaneous electrochemical impedance spectroscopy and localized surface plasmon resonance

Cheng, Xiangju; Hau, Ben Y.H.; Endo, Tatsuro; Kerman, Kağan

doi:10.1016/j.bios.2013.10.003

Cited by 84 publications

(46 citation statements)

References 38 publications

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“…50 These materials are often made from silica or indium oxide, carefully constructed and modified for their chemical and optical properties. [51][52][53][54][55][56][57] The optical properties of PCs are related to their periodicity, size, and average refractive index. 51 Sharma and Sharan 52,53 detected high glucose concentration in urine, known as glycosuria, using a PC-based structure with line defects and 2D air holes in a silicon slab.…”

Section: Pc-based Biosensorsmentioning

confidence: 99%

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Nanomaterial-based biosensors for biological detections

Su¹,

Li²,

Jin³

et al. 2017

AHCT

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Nanomaterial-based biosensors have become one of the major topics in the field of diagnostics. With the growing demand on devices with improved sensitivity and selectivity, rapid response time, and low cost, four categories of nanomaterials have become popular in biosensor research: gold nanoparticles, graphene, carbon nanotubes, and photonic crystals. The ongoing research has brought new designs of biosensors based on nanomaterials, which have greatly improved the potential of field-deployable microfabricated devices. This review describes the recent technologies employing the aforementioned nanomaterials for electrochemical detection of biomolecules, including glucose, DNA, protein, toxins, and so on. We envisage that miniaturized lab-on-a-chip devices employing these nanomaterials will soon be an essential part of our daily life.

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Section: Pc-based Biosensorsmentioning

confidence: 99%

“…A similar optical setup was employed by Cheng et al 55 for the detection of DNA hybridization related to a specific point mutation in apolipoprotein E gene using localized surface plasmon resonance (LSPR) and EIS. AuNPs were electrodeposited onto indium tin oxide (ITO) surface using CV.…”

Section: Pc-based Biosensorsmentioning

confidence: 99%

Nanomaterial-based biosensors for biological detections

Su¹,

Li²,

Jin³

et al. 2017

AHCT

Self Cite

View full text Add to dashboard Cite

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“…Hsu et al [8] detected Mycobacterium tuberculosis by using SPR with a sensitivity of -0.087 dB/ (μg/mL) and a highest sensitivity of 115ng/mL. Cheng et al [9] used electrochemically deposited AuNPs on ITO-glass surface for immobilization of specific DNA probe. Then used the composite electrode to detect point mutation in apolipoprotein E gene through impedance spectroscopy and localized SPR for confirmation of Alzheimer's disease.…”

Section: Spr Sensorsmentioning

confidence: 99%

Detection of Pathogenic Bacteria: A Genosensor Approach

Dash¹

2017

JBMOA

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Nowadays, detection of pathogenic bacteria is one of the major concerns in food, beverage drinking water and pharmaceutical industries. The traditional methods used for identification of bacteria involve detection of characteristic metabolites or cellular reproductive cycles, which is time-consuming, less sensitive, and misleading. From last few decades there has been a great advance in the strategies for detection of pathogenic bacteria by using micro-and nano-fabrication technologies. These technologies largely improved the sensitivity, specificity, limit of detection, and simultaneously reduced the complexity of handing, time and cost of detection. The paper will be focused on newly developed nano-and micro-scaled sensors, microfluidics, lab-on-a-chip, and array based technologies for the detection of different pathogenic bacteria.

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“…Many studies have proved that electrodeposition can get well-controlled and homogeneous material on the working electrode [23,24]. The dendritic gold nanoparticles-modified electrode was fabricated based on an electrodeposition method [25] with further improvement.…”

Section: Preparation Of the Sensormentioning

confidence: 99%

A sensor for glycoproteins based on dendritic gold nanoparticles electrodeposited on a gold electrode and modified with a phenylboronic acid

Shen

Liu

Fang

et al. 2014

J Solid State Electrochem

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We describe a gold electrode capable of recognizing glycoproteins (as exemplified for the model protein horseradish peroxidase; HRP). It is based on the interaction between the cis-diol groups of the glycoprotein and the boronate groups of 4-mercaptophenylboronic acid (MPBA) that was self-assembled on dendritic gold nanoparticles electrodeposition on the surface of a gold electrode. The modified electrode exhibits linear electrochemical response to HRP in the 2.5 nM to 25 μM concentration range. The detection limit is 0.5 nM at a signal-to-noise ratio of 3.

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Au nanoparticle-modified DNA sensor based on simultaneous electrochemical impedance spectroscopy and localized surface plasmon resonance

Cited by 84 publications

References 38 publications

Nanomaterial-based biosensors for biological detections

Nanomaterial-based biosensors for biological detections

Detection of Pathogenic Bacteria: A Genosensor Approach

A sensor for glycoproteins based on dendritic gold nanoparticles electrodeposited on a gold electrode and modified with a phenylboronic acid

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