Detection of bacterial endotoxin in food: New planar interdigital sensors based approach

Rahman, Mohd Syaifudin Abdul; Mukhopadhyay, Subhas Chandra; Yu, Pak-Lam; Goicoechea, Javier; Matı́as, Ignacio R.; Gooneratne, Chinthaka P.; Kosel, Jürgen

doi:10.1016/j.jfoodeng.2012.08.026

Cited by 58 publications

(9 citation statements)

References 32 publications

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“…The electrochemical approach based on sensors or biosensors stands out among all of them. Most of these studies rely on electrochemical impedance spectroscopy (EIS) for the LPS detection (Cho et al, 2012;Ding et al, 2007;Heras et al, 2010;Rahman et al, 2013). For instance, the sensors developed by Ding and his co-workers and Rahman and its group use EIS to quantify the amount of LPS through immobilized PmB (polymyxin B).…”

Section: Introductionmentioning

confidence: 99%

Novel fully-integrated biosensor for endotoxin detection via polymyxin B immobilization onto gold electrodes

Zuzuarregui

Arana

Pérez-Lorenzo

et al. 2013

J. Sens. Sens. Syst.

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Abstract. In this paper an electrochemical endotoxin biosensor consisting of an immobilized lipopolysaccharide (LPS) ligand, polymyxin B (PmB), is presented. Several parameters involved both in the device fabrication and in the detection process were analyzed to optimize the ligand immobilization and the interaction between PmB and LPS, aiming at increasing the sensitivity of the sensor. Different electrochemical pre-treatment procedures as well as the functionalization methods were studied and evaluated. The use of a SAM (self-assembled monolayer) to immobilize PmB and the quantification of the interactions via cyclic voltammetry allowed the development of a robust and simple device for in situ detection of LPS. Thus, the biosensor proposed in this work intends an approach to the demanding needs of the market for an integrated, portable and simple instrument for endotoxin detection.

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Section: Introductionmentioning

confidence: 99%

Novel fully-integrated biosensor for endotoxin detection via polymyxin B immobilization onto gold electrodes

Zuzuarregui

Arana

Pérez-Lorenzo

et al. 2013

J. Sens. Sens. Syst.

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“…In every aspect of industrial and technological development to improve the quality of life on earth, the utilization of sensors has become crucial. (1)(2)(3) Gas sensors specifically have been used to monitor the quality of air and the environment, and to detect toxic gases. (4,5) The first commercially available gas sensor based on a platinum wire was introduced in 1923.…”

Section: Introductionmentioning

confidence: 99%

“…Keywords for search: graphene, metal oxide, gas, and sensor. 2 shows two other famous carbon-based structures, namely, carbon nanotubes (discovered by S. Iijima in 1991) and a fullerene (discovered by H. W. Kroto in 1985). The increasing research on graphene indicates that its full potential has not been achieved since its discovery.…”

Section: Introductionmentioning

confidence: 99%

Graphene-based Materials in Gas Sensor Applications: A Review

Demon¹,

Kamisan²,

Abdullah³

et al. 2020

Sensors and Materials

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Graphene and chemically modified graphene can be fabricated via numerous routes each with its own merits concerning ease of processability, cost-effectiveness for large-scale production, and also health and safety. One of the promising applications of graphene-based composites is gas sensing, which is mainly useful for environmental monitoring. We review some of the significant findings on graphene-based sensing materials for the detection of organic vapors, toxic gases, and chemical warfare agent simulants using an electrochemical method. Electrochemical sensing can be performed by inducing interactions between gas molecules and a graphene layer, such as charge transfer that gives a change in an electrical signal. The intrinsic properties of graphene and its role in some gas sensing applications will be discussed. Graphene and graphene oxide (GO) work as continuous conductive networks with a large number of surface adsorption sites for many gas molecules. Hybrid graphene devices incorporate semiconductors, metals, and molecular binders to enhance the capabilities of solidstate gas sensors. This article also addresses current approaches to the commercialization of graphene-based gas sensors.

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“…The introduction of sensing technology for monitoring purposes has improved the quality of human life. Nowadays, sensors are utilized ubiquitously for different day-to-day applications, including in health [1,2], domestic [3,4], and industrial [5,6] settings. After the introduction of semiconducting sensors around two decades ago [7,8], silicon sensors became highly popular due to their high sensitivity and low-contact resistances.…”

Section: Introductionmentioning

confidence: 99%

Laser-Assisted Printed Flexible Sensors: A Review

Han

Nag

Afsarimanesh

et al. 2019

Sensors

Self Cite

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This paper provides a substantial review of some of the significant research done on the fabrication and implementation of laser-assisted printed flexible sensors. In recent times, using laser cutting to develop printed flexible sensors has become a popular technique due to advantages such as the low cost of production, easy sample preparation, the ability to process a range of raw materials, and its usability for different functionalities. Different kinds of laser cutters are now available that work on samples very precisely via the available laser parameters. Thus, laser-cutting techniques provide huge scope for the development of prototypes with a varied range of sizes and dimensions. Meanwhile, researchers have been constantly working on the types of materials that can be processed, individually or in conjugation with one another, to form samples for laser-ablation. Some of the laser-printed techniques that are commonly considered for fabricating flexible sensors, which are discussed in this paper, include nanocomposite-based, laser-ablated, and 3D-printing. The developed sensors have been used for a range of applications, such as electrochemical and strain-sensing purposes. The challenges faced by the current printed flexible sensors, along with a market survey, are also outlined in this paper.

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Detection of bacterial endotoxin in food: New planar interdigital sensors based approach

Cited by 58 publications

References 32 publications

Novel fully-integrated biosensor for endotoxin detection via polymyxin B immobilization onto gold electrodes

Novel fully-integrated biosensor for endotoxin detection via polymyxin B immobilization onto gold electrodes

Graphene-based Materials in Gas Sensor Applications: A Review

Laser-Assisted Printed Flexible Sensors: A Review

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