A highly stretchable and conductive 3D porous graphene metal nanocomposite based electrochemical-physiological hybrid biosensor

Xing, Xuan; Kim, Ji Y.; Xue, Hui; Das, Partha Sarati; Yoon, Hyo Sang; Park, Jaeyeong

doi:10.1016/j.bios.2018.07.071

Cited by 128 publications

(63 citation statements)

References 29 publications

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“…47,118 Metallic NWs have found applications in gas, 119 temperature, 120 and pH sensors. 121 Silver NWs have higher conductivity than carbon nanomaterials or any other metallic NWs. 122 In addition, Ag NWs demonstrate mechanical flexibility.…”

Section: B Materials For Stretchable Environmental Sensorsmentioning

confidence: 99%

“…Because of the straightforward transduction principle and simple readout configuration, potentiometric pH sensors have been the dominant instrument used for pH sensing, including stretchable pH sensors. 112,121,188 The spectrometric pH sensor is an alternative sensing technique. Unlike electrochemical pH sensing, the spectrometric technique indirectly acquires the pH of a solution by measuring the concentration of the acidic and basic forms of the pH indicators.…”

Section: Ph Sensorsmentioning

confidence: 99%

“…Non-stretchable ISE materials were optimized through geometry engineering into meander/serpentine patterns and island-bridge configurations to produce stretchable pH sensors. 121,188 In 2014, Chung et al reported an island-bridge strategy enabled stretchable pH sensor array. 191 In 2015, Hwang et al reported the production of stretchable Si NM-and Si NR-based transient electronics with device islands connected by serpentine or out-out-plane interconnects that allow the system to accommodate large deformations without fracture.…”

Section: Ph Sensorsmentioning

confidence: 99%

“…In 2018, Xuan et al fabricated a stretchable electrochemical pH sensor consisting of an electrodeposited PANI membrane and cast Ag/AgCl on a LIG/Ag NW/PDMS stretchable electrode. 121 The Ag NW percolation network layer was introduced to reduce the sheet resistance of the electrode and enable the stretchability. The serpentine filamentary pattern further enhances stretchability, with a minimal resistance change under strain up to 40%.…”

Section: Ph Sensorsmentioning

confidence: 99%

See 3 more Smart Citations

Stretchable sensors for environmental monitoring

Yang

Deng

2019

Applied Physics Reviews

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The development of flexible and stretchable sensors has been receiving increasing attention in recent years. In particular, stretchable, skin-like, wearable sensors are desirable for a variety of potential applications such as personalized health monitoring, human-machine interfaces, and environmental sensing. In this paper, we review recent advancements in the development of mechanically flexible and stretchable sensors and systems that can be used to quantitatively assess environmental parameters including light, temperature, humidity, gas, and pH. We discuss innovations in the device structure, material selection, and fabrication methods which explain the stretchability characteristics of these environmental sensors and provide a detailed and comparative study of their sensing mechanisms, sensor characteristics, mechanical performance, and limitations. Finally, we provide a summary of current challenges and an outlook on opportunities for possible future research directions for this emerging field.

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Section: B Materials For Stretchable Environmental Sensorsmentioning

confidence: 99%

Section: Ph Sensorsmentioning

confidence: 99%

Section: Ph Sensorsmentioning

confidence: 99%

Section: Ph Sensorsmentioning

confidence: 99%

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Stretchable sensors for environmental monitoring

Yang

Deng

2019

Applied Physics Reviews

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“…Noble metal nanoparticles (NPs), specifically silver (Ag) and gold (Au), have attracted the attention of distinct sciences such as biomedicine [1], engineering [2], and food technology [3] as well as several industrial fields such as cosmetics [4], electronic devices [5], and building construction [6]. The increasing interest is due to the single properties of nanoscale materials, i.e., cell viability [7], anticancer action [8], and silver nanoparticle applicability in scaffolds [9], membranes [10], and hydrogel dressings [11], for instance.…”

Section: Introductionmentioning

confidence: 99%

Multivariate Model Based on UV-Vis Spectroscopy and Regression in Partial Least Squares for Determination of Diameter and Polydispersity of Silver Nanoparticles in Colloidal Suspensions

Rodrigues

Oliveira

et al. 2020

Journal of Nanomaterials

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In the universe of nanomaterials, silver nanoparticles (AgNPs) have attracted the attention of researchers because of their optical, catalytic, antimicrobial, fungicidal, and bactericidal properties. Recently, studies have correlated the toxicity and efficacy of antimicrobial activity with surface-volume ratio, morphology, polydispersity, ligand types, particle size, and stability of AgNPs. Soon, the need for characterization of properties such as diameter and polydispersity is clear. The methodologies conventionally used for characterization of AgNPs, although accurate, are generally expensive and laborious and can degrade the sample. Thus, the development of methodologies based on UV-Vis spectroscopy and chemometric techniques appears as an alternative for the characterization of diameter and polydispersity of the nanoparticles. For the development of the methodology in question, 50 samples were synthesized, varying the type, volume, and concentration of the reagents in order to increase the diameter and polydispersity values. All samples were analyzed by DLS and UV-Vis spectroscopy. For the construction of multivariate calibration models, the calibration and validation sets were selected using the SPXY algorithm, and their predictive capacity was evaluated based on the method figures. The model that presented the best predictive capacity was the one built with the pretreated spectra with the 1st derivative with a 15-point window and 2nd-order polynomial, providing prediction errors of 5.31% and 4.43% for diameter and polydispersity, respectively.

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Flexible Hybrid Sensor Systems with Feedback Functions

Takei

2020

Adv Funct Materials

103

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Skin‐like wearable sensors are regarded as key technologies toward home‐based healthcare, human–machine interfaces, robotics, prostheses, and enhanced augmented/virtual reality (AR/VR). Inspired by human somatosensory functions, artificial sensory feedback systems play vital roles in shaping interactions with complex environments and timely decision‐making. This study presents an overview of recent advances in feedback‐driven, closed‐loop skin‐inspired flexible sensor systems that make use of emerging functional nanomaterials and elaborate structures. Drawing on feedback solutions, four categories of sensor systems are highlighted, which include prosthesis‐ and AR/VR‐based human–machine interfaces, smartphone‐based approaches for point‐of‐care detection, and smart wearable displays for direct signal visualizations. Furthermore, the progress of machine learning on the reliable recognition of massive quantities of signals generated by flexible sensor networks is briefly discussed. The state‐of‐the‐art hybrid sensor techniques, along with other emerging strategies, will enable total sensory feedback loop systems to be developed for next‐generation electronic skins.

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A highly stretchable and conductive 3D porous graphene metal nanocomposite based electrochemical-physiological hybrid biosensor

Cited by 128 publications

References 29 publications

Stretchable sensors for environmental monitoring

Stretchable sensors for environmental monitoring

Multivariate Model Based on UV-Vis Spectroscopy and Regression in Partial Least Squares for Determination of Diameter and Polydispersity of Silver Nanoparticles in Colloidal Suspensions

Flexible Hybrid Sensor Systems with Feedback Functions

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