A sensitive DNA biosensor fabricated from gold nanoparticles and graphene oxide on a glassy carbon electrode

Hajihosseini, Saeedeh; Nasirizadeh, Navid; Hejazi, Mohammad Saeid; Yaghmaei, Parichehreh

doi:10.1016/j.msec.2015.12.091

Cited by 58 publications

(12 citation statements)

References 38 publications

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“…Oracet Blue. 34 [Ru(NH 3 ) 5 L] 2+ , has been demonstrated being an electro-active intercalator of double strand DNA (dsDNA). 35,36 Under high ionic strength, the [Ru(NH 3 ) 5 L] 2+ complex binds with DNA mainly through intercalation mode, thus minimizing background noise and interferences.…”

Section: Introductionmentioning

confidence: 99%

Detection of Helicobacter pylori in dental plaque using a DNA biosensor for noninvasive diagnosis

et al. 2018

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Section: Introductionmentioning

confidence: 99%

Detection of Helicobacter pylori in dental plaque using a DNA biosensor for noninvasive diagnosis

et al. 2018

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“…Hajihosseini et al, for the first time, developed an electrochemical DNA biosensor for Helicobacter pylori detection with DPV [ 53 ]. For the electrode modification, GO was dripped onto GCE surface, and GO-modified GCEs were further modified with AuNPs by deposition.…”

Section: Pathogen Detection With Electrochemical Biosensorsmentioning

confidence: 99%

Pathogen detection with electrochemical biosensors: Advantages, challenges and future perspectives

Kaya

Çetin²,

Azimzadeh

et al. 2021

Journal of Electroanalytical Chemistry

152

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“…It can be mentioned that EIS is a suitable technique for understanding the interface characteristics of bare and modified electrode surfaces. 36 In order to evaluate the resistance of the electrode surface at different stages, the modified working electrode was immersed into a 0.1 molL -1 phosphate buffer (pH 7.0) containing 1.0 mmolL -1 k 3 [Fe (CN) 6 ]/k 4 [Fe (CN) 6 ], and the corresponding Nyquist curve was plotted as shown in Figure 3. The diagonal diameter of the plots was equal to the charge transfer resistance (R ct ), and the electron transfer capacity decreased with the increment of the R ct value.…”

Section: Characterization Of the Modified Spcementioning

confidence: 99%

Developing a Novel Nanocomposite of Gold Nanowires/Reduced Graphene Oxide/Molecularly Imprinted Polyaniline for the Electrochemical Sensing of Metronidazole

Dehghani

Nasirizadeh

Yazdanshenas

2019

J Apple Biotechnol Rep

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Introduction Metronidazole (MTZ: 1 beta-hydroxyethyl-2-methyl-5nitromidazole), as a synthetic antibiotic belonging to the nitroimidazole class, is an antibacterial and anti-protozoal agent. 1 It is most widely used to treat infectious diseases caused by anaerobic bacteria and protozoa. 2 However, due to its ring structure, it can cause carcinogenic, teratogenic, mutagenic and genetic toxicities to humans. 3-5 Therefore, it is very important to develop highly sensitive and rapid methods for MTZ determination. For this purpose, a variety of analytical methods have been used so far, including different versions of high-performance liquid chromatography and ultra-performance liquid chromatography, 6-9 thin layer chromatography, 10,11 gas chromatography, 12,13 and spectrophotometry. 14,15 The above-mentioned methods suffer from technical problems in drug separation and detection, such as being costly and time-consuming and needing large amounts of samples. Most importantly, separation of MTZ by those techniques needs purification and pre-concentration. In this context, electrochemical methods prove to be of benefit due to their low cost, simple operation, fast response, and ease of handling. 16-18 Many researchers have reported that modification of electrodes by using nanoparticles and molecularly imprinted polymers (MIPs) is a key step to design, fabricate, and operate sensors and biosensors. 18-20 Nanomaterials can improve the sensitivity of nanosensors by enhancing the electron transfer rate and expanding the actual surface area of electrodes. 21-23 In addition, MIPs have advantages such as simplicity, low cost and high selectivity. At the same time, unlike other materials, they are effective even for ultra-trace quantities. 24,25 The MIP electrochemical sensors can be made in a variety of ways including bulk polymerization, sol-gel process,

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A sensitive DNA biosensor fabricated from gold nanoparticles and graphene oxide on a glassy carbon electrode

Cited by 58 publications

References 38 publications

Detection of Helicobacter pylori in dental plaque using a DNA biosensor for noninvasive diagnosis

Detection of Helicobacter pylori in dental plaque using a DNA biosensor for noninvasive diagnosis

Pathogen detection with electrochemical biosensors: Advantages, challenges and future perspectives

Developing a Novel Nanocomposite of Gold Nanowires/Reduced Graphene Oxide/Molecularly Imprinted Polyaniline for the Electrochemical Sensing of Metronidazole

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