Hydrogel-Based Flexible and Wearable Sensors

Zalpour, Neda; Roushani, Mahmoud

doi:10.1201/9781003299455-12

Cited by 3 publications

(3 citation statements)

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“…(15) -Polyaniline/poly(acrylamide-co-hydroxyethyl methylacrylate). (16) -Polyvinyl alcohol/glycerol/polyaniline. (17) -Sodium casein/polydopamine/polyacrylamide.…”

Section: Anti-freezementioning

confidence: 99%

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Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior

Saeidi,

Chenani,

Orouji

et al. 2023

Biosensors

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Hydrogel-based wearable electrochemical biosensors (HWEBs) are emerging biomedical devices that have recently received immense interest. The exceptional properties of HWEBs include excellent biocompatibility with hydrophilic nature, high porosity, tailorable permeability, the capability of reliable and accurate detection of disease biomarkers, suitable device–human interface, facile adjustability, and stimuli responsive to the nanofiller materials. Although the biomimetic three-dimensional hydrogels can immobilize bioreceptors, such as enzymes and aptamers, without any loss in their activities. However, most HWEBs suffer from low mechanical strength and electrical conductivity. Many studies have been performed on emerging electroactive nanofillers, including biomacromolecules, carbon-based materials, and inorganic and organic nanomaterials, to tackle these issues. Non-conductive hydrogels and even conductive hydrogels may be modified by nanofillers, as well as redox species. All these modifications have led to the design and development of efficient nanocomposites as electrochemical biosensors. In this review, both conductive-based and non-conductive-based hydrogels derived from natural and synthetic polymers are systematically reviewed. The main synthesis methods and characterization techniques are addressed. The mechanical properties and electrochemical behavior of HWEBs are discussed in detail. Finally, the prospects and potential applications of HWEBs in biosensing, healthcare monitoring, and clinical diagnostics are highlighted.

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“…(15) -Polyaniline/poly(acrylamide-co-hydroxyethyl methylacrylate). (16) -Polyvinyl alcohol/glycerol/polyaniline. (17) -Sodium casein/polydopamine/polyacrylamide.…”

Section: Anti-freezementioning

confidence: 99%

“…Recently, hydrogel-based wearable electrochemical biosensors (HWEBs) as an innovative technology are becoming increasingly popular since they take advantage of hydrogels and WEB devices [ 16 ]. HWEBs are advanced sensing devices using hydrogel materials as the platforms for immobilizing biorecognition elements [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior

Saeidi,

Chenani,

Orouji

et al. 2023

Biosensors

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show abstract

“…Currently, there is a strong focus on creating nanocomposite materials that can serve as effective and costefficient sensors in the field of analytical chemistry [13]. Several electrodes have been prominently utilized, including the carbon paste electrode [14], glassy carbon electrode [15], screen printed electrode [16], pencil graphite electrode [17], paper electrode and carbon cloth electrode [18]. Pencil graphite electrodes (PGE) and their associated sensors have attracted considerable attention in the field of electroanalysis, exceeding alternative solid-state electrodes.…”

mentioning

confidence: 99%

ERGO-based Bimetallic Nanocomposite as Novel Sensing Material for the Assay of 4-Nitrophenol in Water Samples

Kumari,

Reddy,

Lavanya

et al. 2024

ajc

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A new approach for detecting and quantifying p-nitrophenol, a major environmental pollutant, is the focus of this work, which involves the electrochemical fabrication of a bimetallic alloy of ruthenium and nickel on an ergo-based pencil graphite electrode. The characterization of the fabricated composite involves techniques such as X-ray diffraction, scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). The composite was observed to form clusters with a size of 4.30 nm. The electrooxidation of p-nitrophenol on the Ru@Ni/ERGO/PGE electrode was investigated using chronoamperometric studies. The results indicate a satisfactory linear relationship between para-nitrophenol concentration within the range of 2.5 to 50 µM. Significantly, the proposed method demonstrates a low detection limit of 0.36 µM and a limit of quantification of 1.1 × 10-6 M. The nanocomposite electrode exhibits favourable outcomes in terms of selectivity, sensitivity and repeatability for an electrochemical sensor material. Stability testing conducted over five weeks further supports the reliability of the electrode. The capability of sensor is validated in real samples including soil and water. This study introduces a promising electrochemical sensor material in the composite electrode making it more effective in detecting p-nitrophenol.

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Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior

Saeidi,

Chenani,

Orouji

et al. 2023

Preprint

View full text Add to dashboard Cite

Hydrogel-based wearable electrochemical biosensors (HWEBs) are emerging biomedical devices that have recently received immense interest. The exceptional properties of HWEBs include excellent biocompatibility with hydrophilic nature, high porosity, tailorable permeability, the capability of reliable and accurate detection of disease biomarkers, suitable device-human interface, facile adjustability, and stimuli-responsive to the nanofiller materials. Although the biomimetic three-dimensional hydrogels can immobilize bioreceptors, such as enzymes and aptamers, without any loss in their activities. However, most HWEBs suffer from low mechanical strength and electrical conductivity. Many studies have been performed on emerging electroactive nanofillers, including biomacromolecules, carbon-based materials, and inorganic and organic nanomaterials, to tackle these issues. Non-conductive hydrogels and even conductive hydrogels may be modified by nanofillers as well as redox species. All these modifications have led to the design and development of efficient nanocomposites as electrochemical biosensors. In this review, both conductive-based and non-conductive-based hydrogels derived from natural and synthetic polymers are systematically reviewed. The main synthesis methods and characterization techniques are addressed. The mechanical properties and electrochemical behavior of HWEBs are discussed in detail. Finally, the prospects and potential applications of HWEBs in biosensing, healthcare monitoring, and clinical diagnostics are highlighted.

show abstract

Hydrogel-Based Flexible and Wearable Sensors

Cited by 3 publications

References 0 publications

Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior

Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior

ERGO-based Bimetallic Nanocomposite as Novel Sensing Material for the Assay of 4-Nitrophenol in Water Samples

Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior

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