Rapid and ultrasensitive detection of Salmonella typhimurium using a novel impedance biosensor based on SiO2@MnO2 nanocomposites and interdigitated array microelectrodes

Wang, Sihan; Peng, Tao; Meng, Qi; Zhu, Xiaoli; Guo, Liuchuan; Yao, Kai; Wang, Zheng; Zheng, Pimiao; Ren, Zhenhui; He, Zhiwei; Zhang, Jing

doi:10.1016/j.snb.2020.128654

Cited by 33 publications

(6 citation statements)

References 33 publications

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“…This biosensor has high sensitivity and selectivity for E. coli detection in the range of 10 1 –10 7 cfu mL −1 . In another study, an impedance biosensor for the detection of S. typhimurium was designed based on immunomagnetic separation using SiO 2 @MnO 2 in which MnO 2 was reduced into Mn 2+ by H 2 O 2 , resulting in impedance changes detected by the interdigitated array microelectrodes (Wang, Peng, et al., 20200). S. typhimurium cells were separated by the captured antibodies immobilized on magnetic beads and sandwiched with the recognized antibodies conjugated with SiO 2 @MnO 2 .…”

Section: Biorecognition Elementsmentioning

confidence: 99%

Nanomaterial interfaces designed with different biorecognition elements for biosensing of key foodborne pathogens

Atay

Altan

2023

Comp Rev Food Sci Food Safe

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Foodborne diseases caused by pathogen bacteria are a serious problem toward the safety of human life in a worldwide. Conventional methods for pathogen bacteria detection have several handicaps, including trained personnel requirement, low sensitivity, laborious enrichment steps, low selectivity, and long‐term experiments. There is a need for precise and rapid identification and detection of foodborne pathogens. Biosensors are a remarkable alternative for the detection of foodborne bacteria compared to conventional methods. In recent years, there are different strategies for the designing of specific and sensitive biosensors. Researchers activated to develop enhanced biosensors with different transducer and recognition elements. Thus, the aim of this study was to provide a topical and detailed review on aptamer, nanofiber, and metal organic framework–based biosensors for the detection of food pathogens. First, the conventional methods, type of biosensors, common transducer, and recognition element were systematically explained. Then, novel signal amplification materials and nanomaterials were introduced. Last, current shortcomings were emphasized, and future alternatives were discussed.

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Section: Biorecognition Elementsmentioning

confidence: 99%

Nanomaterial interfaces designed with different biorecognition elements for biosensing of key foodborne pathogens

Atay

Altan

2023

Comp Rev Food Sci Food Safe

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“…This is due to the advantages of the pair of comb fingers with the reference and counter electrodes available in the sensor setup. Moreover, miniaturized IDEA-based electrochemical sensors rose to fame, as reported in many recent studies, due to retainable electrode width, gap, and height in micro and nano units [ 85 , 86 , 87 ].…”

Section: Micro and Nano Ideamentioning

confidence: 99%

Micro and Nano Interdigitated Electrode Array (IDEA)-Based MEMS/NEMS as Electrochemical Transducers: A Review

et al. 2022

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Micro and nano interdigitated electrode array (µ/n-IDEA) configurations are prominent working electrodes in the fabrication of electrochemical sensors/biosensors, as their design benefits sensor achievement. This paper reviews µ/n-IDEA as working electrodes in four-electrode electrochemical sensors in terms of two-dimensional (2D) planar IDEA and three-dimensional (3D) IDEA configurations using carbon or metal as the starting materials. In this regard, the enhancement of IDEAs-based biosensors focuses on controlling the width and gap measurements between the adjacent fingers and increases the IDEA’s height. Several distinctive methods used to expand the surface area of 3D IDEAs, such as a unique 3D IDEA design, integration of mesh, microchannel, vertically aligned carbon nanotubes (VACNT), and nanoparticles, are demonstrated and discussed. More notably, the conventional four-electrode system, consisting of reference and counter electrodes will be compared to the highly novel two-electrode system that adopts IDEA’s shape. Compared to the 2D planar IDEA, the expansion of the surface area in 3D IDEAs demonstrated significant changes in the performance of electrochemical sensors. Furthermore, the challenges faced by current IDEAs-based electrochemical biosensors and their potential solutions for future directions are presented herein.

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“…Earth abundant transition metal oxides are showing great potential for electrochemical applications, including electrochemical biosensors for foodborne pathogens [64]. Thus, rapid detection of Salmonella typhimurium was achieved using an SiO 2 @MnO 2 nanocomposite impedance biosensor developed on interdigitated array microelectrodes combined with immunomagnetic separation [65]. Magnetic beads were used to capture monoclonal antibodies and separate S. typhimirium cells rapidly from samples, while detection was achieved by release of Mn 2+ by H 2 O 2 monitored as a change in impedance, as shown in Figure 5.…”

Section: Metal Oxide Nanomaterialsmentioning

confidence: 99%

Advances in Nanomaterials-Based Electrochemical Biosensors for Foodborne Pathogen Detection

et al. 2021

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Electrochemical biosensors utilizing nanomaterials have received widespread attention in pathogen detection and monitoring. Here, the potential of different nanomaterials and electrochemical technologies is reviewed for the development of novel diagnostic devices for the detection of foodborne pathogens and their biomarkers. The overview covers basic electrochemical methods and means for electrode functionalization, utilization of nanomaterials that include quantum dots, gold, silver and magnetic nanoparticles, carbon nanomaterials (carbon and graphene quantum dots, carbon nanotubes, graphene and reduced graphene oxide, graphene nanoplatelets, laser-induced graphene), metal oxides (nanoparticles, 2D and 3D nanostructures) and other 2D nanomaterials. Moreover, the current and future landscape of synergic effects of nanocomposites combining different nanomaterials is provided to illustrate how the limitations of traditional technologies can be overcome to design rapid, ultrasensitive, specific and affordable biosensors.

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Rapid and ultrasensitive detection of Salmonella typhimurium using a novel impedance biosensor based on SiO2@MnO2 nanocomposites and interdigitated array microelectrodes

Cited by 33 publications

References 33 publications

Nanomaterial interfaces designed with different biorecognition elements for biosensing of key foodborne pathogens

Nanomaterial interfaces designed with different biorecognition elements for biosensing of key foodborne pathogens

Micro and Nano Interdigitated Electrode Array (IDEA)-Based MEMS/NEMS as Electrochemical Transducers: A Review

Advances in Nanomaterials-Based Electrochemical Biosensors for Foodborne Pathogen Detection

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