Investigation of Laser Induced Graphene Electrodes Modified by MWNT/AuNPs for Detection of Nitrite

Nasraoui, Salem; Al‐Hamry, Ammar; Adiraju, Anurag; Teixeira, Priscila Rios; Ameur, Sami; Paterno, Leonardo G.; Ali, Mounir Ben; Kanoun, Olfa

doi:10.1109/ssd.2019.8893191

Cited by 16 publications

(5 citation statements)

References 22 publications

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“…When nitrates reach the food chain from groundwater, surface water, and other sources, they can negatively affect the human body. If infants consume too much nitrate via their drinking water, they may develop “blue baby” disease or methemoglobinemia, which is caused by the endogenous conversion of nitrate to nitrite [ 10 , 35 ].…”

Section: Water Contaminantsmentioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

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Electrochemical sensors play a significant role in detecting chemical ions, molecules, and pathogens in water and other applications. These sensors are sensitive, portable, fast, inexpensive, and suitable for online and in-situ measurements compared to other methods. They can provide the detection for any compound that can undergo certain transformations within a potential window. It enables applications in multiple ion detection, mainly since these sensors are primarily non-specific. In this paper, we provide a survey of electrochemical sensors for the detection of water contaminants, i.e., pesticides, nitrate, nitrite, phosphorus, water hardeners, disinfectant, and other emergent contaminants (phenol, estrogen, gallic acid etc.). We focus on the influence of surface modification of the working electrodes by carbon nanomaterials, metallic nanostructures, imprinted polymers and evaluate the corresponding sensing performance. Especially for pesticides, which are challenging and need special care, we highlight biosensors, such as enzymatic sensors, immunobiosensor, aptasensors, and biomimetic sensors. We discuss the sensors’ overall performance, especially concerning real-sample performance and the capability for actual field application.

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Section: Water Contaminantsmentioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

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“…The hydrophilic oxygen groups and multiple aromatic parts in GO could also assist in obtaining a stable GO-CNT complex with a strong 𝜋-𝜋 stacking interaction. Considering the catalytic activity of various metals and their alloys, [39][40][41][42][43][44] the LIG electrode modified by the carbonbased nanomaterials is further decorated with metal nanoparticles followed by laser treatment for enhanced electrochemical properties.…”

Section: Nanocomposite Modificationmentioning

confidence: 99%

A Highly Sensitive and Long‐Term Stable Wearable Patch for Continuous Analysis of Biomarkers in Sweat

Lorestani,

Zhang,

Abdullah

et al. 2023

Adv Funct Materials

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Although increasing efforts have been devoted to the development of non‐invasive wearable electrochemical sweat sensors for monitoring physiological and metabolic information, most of them still suffer from poor stability and specificity over time and fluctuating temperatures. This study reports the design and fabrication of a long‐term stable and highly sensitive flexible electrochemical sensor based on nanocomposite‐modified porous graphene by facile laser treatment for detecting biomarkers such as glucose in sweat. The laser‐reduced and patterned stable conductive nanocomposite on the porous graphene electrode provides the resulting glucose sensor with an excellent sensitivity of 1317.69 µA mm−1 cm−2 and an ultra‐low limit of detection of 0.079 µm. The sensor can also detect pH and exhibit extraordinary stability to maintain more than 91% sensitivity over 21 days in ambient conditions. Taken together with a temperature sensor based on the same material system, the dual glucose and pH sensor integrated with a flexible microfluidic sweat sampling network further results in accurate continuous on‐body glucose detection calibrated by the simultaneously measured pH and temperature. The low‐cost, highly sensitive, and long‐term stable platform could facilitate the early identification and continuous monitoring of different biomarkers for non‐invasive disease diagnosis and treatment evaluation.

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“…Nowadays, laser‐induced graphene electrode (LIG), modified with diverse nanocomponents with AuNPs, is generating promising results in nitrite detection. Nasraoui and co‐workers [167] focused on a cost‐effective engraving approach which induced electro‐conductive pathways onto a Kapton polymer substrate and amenable to implementation in nitrite sensing. In this study, LIG electrodes were modified by fabricating with AuNPs and MWCNT.…”

Section: Electrochemical Detection Of Nitrite Based On Au Nanomaterialsmentioning

confidence: 99%

Gold Nanomaterials and their Composites as Electrochemical Sensing Platforms for Nitrite Detection

Saha

Akter

Shah

et al. 2022

Chemistry An Asian Journal

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Nitrite is one of the abundant toxic components existing in the environment and is likely to have a great potential to affect human health badly. For that reason, it has become crucial to build a reliable nitrite detection method. In recent years, several nitrite monitoring systems have been proposed. Compared with traditional analytical strategies, the electrochemical approach has a bunch of advantages, including low cost, rapid response, easy operation, simplicity, etc. In this case, noble metal nanomaterials, especially Au‐based nanomaterials, have attracted attention in electrode modification because of higher catalytic activity, facile mass transfer, and broad active area for determining nitrite. This review is based on the state‐of‐the‐art, which includes a variety of nanomaterials that have been coupled with gold nanoparticles (AuNPs) for the creation of nanocomposites, and the construction as well as development of electrochemical sensors for nitrite detection over the last few years (2016‐2022). A background study on synthesizing different morphological AuNPs and nanocomposites has also been introduced. The fabrication methods and sensing capabilities of modified electrodes are given special consideration.

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Investigation of Laser Induced Graphene Electrodes Modified by MWNT/AuNPs for Detection of Nitrite

Cited by 16 publications

References 22 publications

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

A Highly Sensitive and Long‐Term Stable Wearable Patch for Continuous Analysis of Biomarkers in Sweat

Gold Nanomaterials and their Composites as Electrochemical Sensing Platforms for Nitrite Detection

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