Anti-poisoning electrode for real-time in-situ monitoring of hydrogen sulfide release

Jeromiyas, Nithiya; Mani, Veerappan; Chang, Pu-Chieh; Salama, Khaled N.; Huang, Sheng‐Tung

doi:10.1016/j.snb.2020.128844

Cited by 19 publications

(9 citation statements)

References 52 publications

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“…A significant oxidation peak was observed at a potential of +0.020 V, which can be assigned to the oxidation of H 2 S. 33 At neutral pH conditions, the H 2 S molecules are distributed into two forms: (1) HSions and ( 2) dissolved H 2 S molecules. 34 They undergo oxidation processes under electrochemical treatment, the processes are the irreversible conversion of H 2 S and HSto S. This oxidation process transfers two electrons to the electrode, which resulted in an increased current in CV. Although LSGE alone has shown significant H 2 S oxidation performance, the fum-fcu-MOF outperformed it.…”

Section: Electrochemical and Electroanalysis Behavior Fum-fcu-mof Mod...mentioning

confidence: 99%

Metal–organic frameworks modified electrode for H₂S detections in biological and pharmaceutical agents

Durmus,

Arul,

Alhaji

et al. 2023

MedComm – Biomaterials and Applications

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The development of hydrogen sulfide (H2S) sensors is essential to address H2S‐related pharmacology since slow‐releasing H2S medications have been identified to be prospective options for cancer treatments. Here, we described an electrochemical sensor for highly selective and sensitive detection of aqueous H2S, using a thin film of fumarate‐based face‐centered cubic (fcu)‐based metal–organic frameworks (fum‐fcu‐MOF) modified on laser‐scribed graphene (LSGE). The fum‐fcu‐MOF has shown a strong affinity and chemical stability to H2S analysis. The electrochemical and H2S catalytic properties were studied for fum‐fcu‐MOF/LSGE. An amperometry and differential pulse voltammetry techniques were demonstrated to validate the sensor. The resulting sensor delivered acceptable analytical parameters in terms of; detection limit (3.0 µM), dynamic range (10–500 µM), reproducibility, and stability (94.7%). The sensor's practical validity was demonstrated in bacterial cells and H2S‐releasing drug, where the sensor was able to monitor the continuous release of in‐situ H2S. The pharmacokinetics of a slow releasing H2S donor is accessed at different time intervals and different concentration levels. Our research indicate that this fum‐fcu‐MOF based H2S sensor holds potential in understanding pharmacokinetics of H2S releasing drugs.

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Section: Electrochemical and Electroanalysis Behavior Fum-fcu-mof Mod...mentioning

confidence: 99%

Metal–organic frameworks modified electrode for H₂S detections in biological and pharmaceutical agents

Durmus,

Arul,

Alhaji

et al. 2023

MedComm – Biomaterials and Applications

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“…One critical challenge of voltammetric/amperometric sensors for long-term application is the formation of passive compounds on the working electrode surface (e.g., platinum oxide on Pt-based electrodes) that causes measurement drift and finally shortens the lifespan. , Moreover, the current value (mA) obtained by voltammetry/amperometry techniques can be drifted by ion interference and temperature variations, which inhibits their applications for continuous monitoring in WW containing high concentration of interfering ions (e.g., chloride >0.5 M) and featuring frequent temperature fluctuations. Future solutions for voltammetric/amperometric sensors as the LTCM devices can be depositing antipassivation materials (e.g., reduced graphene oxide-molybdenum disulfide nanohybrid) onto the sensor surface to expand the lifetime, and modifying the sensor morphology with high conductive materials (e.g., metal organic frameworks (MOFs), nanorods, and graphene nanowalls) to expedite the electron transfer rate.…”

Section: Current State and Challenge Of Sensor Development For Data A...mentioning

confidence: 99%

Forward-Looking Roadmaps for Long-Term Continuous Water Quality Monitoring: Bottlenecks, Innovations, and Prospects in a Critical Review

Huang

Wang

Xiang

et al. 2022

Environ. Sci. Technol.

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Long-term continuous monitoring (LTCM) of water quality can bring far-reaching influences on water ecosystems by providing spatiotemporal data sets of diverse parameters and enabling operation of water and wastewater treatment processes in an energy-saving and cost-effective manner. However, current water monitoring technologies are deficient for long-term accuracy in data collection and processing capability. Inadequate LTCM data impedes water quality assessment and hinders the stakeholders and decision makers from foreseeing emerging problems and executing efficient control methodologies. To tackle this challenge, this review provides a forward-looking roadmap highlighting vital innovations toward LTCM, and elaborates on the impacts of LTCM through a three-hierarchy perspective: data, parameters, and systems. First, we demonstrate the critical needs and challenges of LTCM in natural resource water, drinking water, and wastewater systems, and differentiate LTCM from existing short-term and discrete monitoring techniques. We then elucidate three steps to achieve LTCM in water systems, consisting of data acquisition (water sensors), data processing (machine learning algorithms), and data application (with modeling and process control as two examples). Finally, we explore future opportunities of LTCM in four key domains, water, energy, sensing, and data, and underscore strategies to transfer scientific discoveries to general end-users.

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“…To avoid fouling, a robust electrode constructed on (RGO-MoS 2 ) and o -phenylenediamine was developed. The modified electrode catalyzed H 2 S oxidation at a lower overpotential (+0.15 V), [ 76 ]. The RGO-MoS 2 improved the EC signal and aided a less-energy-consumption path for H 2 S oxidation on the electrode surface.…”

Section: Gr-based Ec Sensors For Bioanalytes Detectionmentioning

confidence: 99%

The Roadmap of Graphene-Based Sensors: Electrochemical Methods for Bioanalytical Applications

et al. 2022

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Graphene (GR) has engrossed immense research attention as an emerging carbon material owing to its enthralling electrochemical (EC) and physical properties. Herein, we debate the role of GR-based nanomaterials (NMs) in refining EC sensing performance toward bioanalytes detection. Following the introduction, we briefly discuss the GR fabrication, properties, application as electrode materials, the principle of EC sensing system, and the importance of bioanalytes detection in early disease diagnosis. Along with the brief description of GR-derivatives, simulation, and doping, classification of GR-based EC sensors such as cancer biomarkers, neurotransmitters, DNA sensors, immunosensors, and various other bioanalytes detection is provided. The working mechanism of topical GR-based EC sensors, advantages, and real-time analysis of these along with details of analytical merit of figures for EC sensors are discussed. Last, we have concluded the review by providing some suggestions to overcome the existing downsides of GR-based sensors and future outlook. The advancement of electrochemistry, nanotechnology, and point-of-care (POC) devices could offer the next generation of precise, sensitive, and reliable EC sensors.

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Anti-poisoning electrode for real-time in-situ monitoring of hydrogen sulfide release

Cited by 19 publications

References 52 publications

Metal–organic frameworks modified electrode for H₂S detections in biological and pharmaceutical agents

Metal–organic frameworks modified electrode for H₂S detections in biological and pharmaceutical agents

Forward-Looking Roadmaps for Long-Term Continuous Water Quality Monitoring: Bottlenecks, Innovations, and Prospects in a Critical Review

The Roadmap of Graphene-Based Sensors: Electrochemical Methods for Bioanalytical Applications

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Anti-poisoning electrode for real-time in-situ monitoring of hydrogen sulfide release

Cited by 19 publications

References 52 publications

Metal–organic frameworks modified electrode for H2S detections in biological and pharmaceutical agents

Metal–organic frameworks modified electrode for H2S detections in biological and pharmaceutical agents

Forward-Looking Roadmaps for Long-Term Continuous Water Quality Monitoring: Bottlenecks, Innovations, and Prospects in a Critical Review

The Roadmap of Graphene-Based Sensors: Electrochemical Methods for Bioanalytical Applications

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Product

Resources

About

Metal–organic frameworks modified electrode for H₂S detections in biological and pharmaceutical agents

Metal–organic frameworks modified electrode for H₂S detections in biological and pharmaceutical agents