Self-adhesive, stretchable, and dry silver nanorods embedded polydimethylsiloxane biopotential electrodes for electrocardiography

Maithani, Yogita; Choudhuri, Bijit; Mehta, B. R.; Singh, J. P.

doi:10.1016/j.sna.2021.113068

Cited by 34 publications

(17 citation statements)

References 42 publications

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“…Meanwhile, our PPy@CC 4 Si 1 electrode displays higher SNR when compared with other epidermal electrodes reported in the literature, such as heat-pressed/AgNW/thermoplastic polyurethane (HP-AgNW/TPU), poly(3,4-ethylenedioxythiophene) polystyrenesulfonate/polydimethylsiloxane (PEDOT:PSS/PDMS), E-textile from carbon-contained silicone rubber, enlarged surface-area skin electrode (ESASE) electrodeposited with gold nanoparticles (AuNPs), and silver nanorod (AgNRs)-embedded PDMS (AgNRs-PDMS), etc. ,− In addition, the peak-to-peak amplitude and the signal intensity are consistent with the gripping force (Figure S11). And the durability of our dry PPy@C-Si film electrode is much better than the commercial gel electrode after exposure to air (Figure S12).…”

Section: Resultsmentioning

confidence: 56%

Conductive Cellulose-Derived Carbon Nanofibrous Membranes with Superior Softness for High-Resolution Pressure Sensing and Electrophysiology Monitoring

Shi

Wang

Meng

et al. 2022

ACS Appl. Mater. Interfaces

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Here, a strategy to overcome the stiff and brittle nature of cellulose-derived carbon nanofibrils (CCNFs) is proposed through a facile, low-cost, and scalable approach. Flexible and conformal CCNFs with a low bending rigidity below 55.4 mN and tunable conductivities of 0.14–45.5 S m–1 are developed by introducing silanol as a multieffect additive in the electrospun hybrid nanofibrous network and subsequent carbonization at a relatively high temperature (900 °C) and chemical vapor deposition of polypyrrole (PPy) on the hybrid carbon nanofibril surface. Silica acts as a lubricant in each rigid carbon fiber to improve flexibility of the CCNF structure as well as a template during cellulose carbonization to prevent the melting of carbon nanofibrils. Meanwhile, the uniform coating of PPy leads to an improvement in electrical conductivity while conserving the porous structure and compressibility of the CCNF nets. These conductive hybrid CCNF films are evaluated as mechanoreceptors and physiological sensors, which are demonstrated to be applied in intelligent electronics including electronic skin, human–machine interfaces, and epidermic electrodes. The design or working principles of the hybrid CCNFs for achieving optimum applicable effects when applied in different scenarios are revealed.

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Section: Resultsmentioning

confidence: 56%

Conductive Cellulose-Derived Carbon Nanofibrous Membranes with Superior Softness for High-Resolution Pressure Sensing and Electrophysiology Monitoring

Shi

Wang

Meng

et al. 2022

ACS Appl. Mater. Interfaces

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“…This type of PVD deposition, carried out using either thermal evaporation or e-beam evaporation, is referred to as oblique-angle deposition (OAD) [ 3 ]. This extended OAD combined with azimuthal substrate rotation, giving various shapes and size of nano-columns, is referred as GLAD [ 14 , 47 ] or as dynamic oblique-angle deposition by some researchers [ 48 ]).…”

Section: Recent Strategies For Fabrication Of Nanostructures Using Th...mentioning

confidence: 99%

GLAD Based Advanced Nanostructures for Diversified Biosensing Applications: Recent Progress

et al. 2022

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Glancing angle deposition (GLAD) is a technique for the fabrication of sculpted micro- and nanostructures under the conditions of oblique vapor flux incident and limited adatom diffusion. GLAD-based nanostructures are emerging platforms with broad sensing applications due to their high sensitivity, enhanced optical and catalytic properties, periodicity, and controlled morphology. GLAD-fabricated nanochips and substrates for chemical and biosensing applications are replacing conventionally used nanomaterials due to their broad scope, ease of fabrication, controlled growth parameters, and hence, sensing abilities. This review focuses on recent advances in the diverse nanostructures fabricated via GLAD and their applications in the biomedical field. The effects of morphology and deposition conditions on GLAD structures, their biosensing capability, and the use of these nanostructures for various biosensing applications such as surface plasmon resonance (SPR), fluorescence, surface-enhanced Raman spectroscopy (SERS), and colorimetric- and wettability-based bio-detection will be discussed in detail. GLAD has also found diverse applications in the case of molecular imaging techniques such as fluorescence, super-resolution, and photoacoustic imaging. In addition, some in vivo applications, such as drug delivery, have been discussed. Furthermore, we will also provide an overview of the status of GLAD technology as well as future challenges associated with GLAD-based nanostructures in the mentioned areas.

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“…Sensitizing components present in gels and in adhesives can cause irritation, contact dermatitis, and exacerbate eczema. 12,13 Preparing the skin for wet electrode application usually involves shaving hairy areas and washing with alcohol. This gel dries out quickly, reducing conductivity and ECG signal quality, 14 limiting the reusability of the electrodes.…”

Section: Introductionmentioning

confidence: 99%

PEDOT:PSS-treated laser-induced graphene-based smart textile dry electrodes for long-term ECG monitoring

2023

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Self-adhesive, stretchable, and dry silver nanorods embedded polydimethylsiloxane biopotential electrodes for electrocardiography

Cited by 34 publications

References 42 publications

Conductive Cellulose-Derived Carbon Nanofibrous Membranes with Superior Softness for High-Resolution Pressure Sensing and Electrophysiology Monitoring

Conductive Cellulose-Derived Carbon Nanofibrous Membranes with Superior Softness for High-Resolution Pressure Sensing and Electrophysiology Monitoring

GLAD Based Advanced Nanostructures for Diversified Biosensing Applications: Recent Progress

PEDOT:PSS-treated laser-induced graphene-based smart textile dry electrodes for long-term ECG monitoring

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