A microbial biosensor for hydrogen sulfide monitoring based on potentiometry

Ebrahimi, Ehsan; Yazdian, Fatemeh; Amoabediny, Ghassem; Shariati, Mohammad Reza; Janfada, Behdokht; Saber, Mohammad

doi:10.1016/j.procbio.2014.05.003

Cited by 10 publications

(3 citation statements)

References 30 publications

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“…Multiple researchers have used alginate [ 33 ], cellulose [ 34 ], gelatine [ 35 ], and silica [ 36 ] hydrogel to immobilise different bacterial species for a variety of sensing applications. E. coli is commonly used as the model organism in many studies due to its fast growth and easy manipulation.…”

Section: Hydrogels Used In Metsmentioning

confidence: 99%

Recent Implementations of Hydrogel-Based Microbial Electrochemical Technologies (METs) in Sensing Applications

Wang

Shi

et al. 2023

Sensors

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Hydrogel materials have been used extensively in microbial electrochemical technology (MET) and sensor development due to their high biocompatibility and low toxicity. With an increasing demand for sensors across different sectors, it is crucial to understand the current state within the sectors of hydrogel METs and sensors. Surprisingly, a systematic review examining the application of hydrogel-based METs to sensor technologies has not yet been conducted. This review aimed to identify the current research progress surrounding the incorporation of hydrogels within METs and sensors development, with a specific focus on microbial fuel cells (MFCs) and microbial electrolysis cells (MECs). The manufacturing process/cost, operational performance, analysis accuracy and stability of typical hydrogel materials in METs and sensors were summarised and analysed. The current challenges facing the technology as well as potential direction for future research were also discussed. This review will substantially promote the understanding of hydrogel materials used in METs and benefit the development of electrochemical biosensors using hydrogel-based METs.

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Section: Hydrogels Used In Metsmentioning

confidence: 99%

Recent Implementations of Hydrogel-Based Microbial Electrochemical Technologies (METs) in Sensing Applications

Wang

Shi

et al. 2023

Sensors

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“…Sulfur compounds are important for the metabolism of organisms, the environment, and many other applications such as paper, oil, petrochemical, and textile industries . Nonetheless, sulfide is considered toxic to the human body; it stimulates the mucous membrane and even leads to anesthesia and respiratory paralysis .…”

Section: Introductionmentioning

confidence: 99%

Novel microfluidic graphene oxide–protein amperometric biosensor for detecting sulfur compounds

Ghaemi

Abdi

Javadi

et al. 2019

Biotech and App Biochem

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Sulfur compounds are essential for many industries and organisms; however, they cause serious respiratory problems in human beings. Therefore, determination of sulfur concentration is of paramount importance. The research approach in the field of detecting contaminants has led to smaller systems that provide faster and more effective ways for diagnosis purposes. In this study, a novel portable amperometric graphene oxide-protein biosensor platform is investigated. The main characteristic of this structure is the implementation of a microfluidic configuration. With albumin metalloprotein as the biorecognition element, graphene oxide was synthesized and characterized by transmission electron microscopy and Fourier-transform infrared spectroscopy (FTIR). Albumin protein was stabilized on the surface of graphene oxide by the application of the N-(3-dimethylamionpropyl)-N-ethylcarbodiimide hydrochloride/N-hydroxysuccinimide method. The stabilization was confirmed by FTIR and electrochemistry analyses. The calibration curve of sulfur concentration was determined. When the graphene oxide-protein complex was stabilized by nephion on the surface of the microfluidic system, the response time reduced to 50 Sec, which is a relatively faster response among the similar studies and validated the significant effect of the microfluidic system. The nanosystem had an optimized pH of 7.4 and exhibited high sensitivity in determining sulfide. The results confirm that the portable graphene oxide-protein nanosystem has a fast and accurate response in detecting sulfide.

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“…There have been several reports combining gelatin and electrical properties [17,19,20,21,22,23] and its use as a biosensor, such as in biomedical applications and in the denaturation process [24,25,26,27,28,29]. However, the literature reporting gelatin as a temperature sensor is scarce.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of a Gelatin Temperature Sensor Based on Electrical Capacitance

Silva

Sorli

Calado

et al. 2016

Sensors

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The innovative use of gelatin as a temperature sensor based on capacitance was studied at a temperature range normally used for meat cooking (20–80 °C). Interdigital electrodes coated by gelatin solution and two sensors of different thicknesses (38 and 125 µm) were studied between 300 MHz and 900 MHz. At 38 µm, the capacitance was adequately measured, but for 125 µm the slope capacitance versus temperature curve decreased before 900 MHz due to the electrothermal breakdown between 60 °C and 80 °C. Thus, for 125 µm, the capacitance was studied applying 600 MHz. Sensitivity at 38 µm at 868 MHz (0.045 pF/°C) was lower than 125 µm at 600 MHz (0.14 pF/°C), influencing the results in the simulation (temperature range versus time) of meat cooking; at 125 µm, the sensitivity was greater, mainly during chilling steps. The potential of gelatin as a temperature sensor was demonstrated, and a balance between thickness and frequency should be considered to increase the sensitivity.

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A microbial biosensor for hydrogen sulfide monitoring based on potentiometry

Cited by 10 publications

References 30 publications

Recent Implementations of Hydrogel-Based Microbial Electrochemical Technologies (METs) in Sensing Applications

Recent Implementations of Hydrogel-Based Microbial Electrochemical Technologies (METs) in Sensing Applications

Novel microfluidic graphene oxide–protein amperometric biosensor for detecting sulfur compounds

Feasibility of a Gelatin Temperature Sensor Based on Electrical Capacitance

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