Smartphone-based battery-free and flexible electrochemical patch for calcium and chloride ions detections in biofluids

Xu, Gang; Cheng, Chen; Yuan, Wei; Liu, Zhaoyang; Zhu, Lihua; Li, Xintong; Lu, Yanli; Chen, Zetao; Liu, Jinglong; Cui, Zheng; Liu, Jingjing; Men, Hong; Liu, Qingjun

doi:10.1016/j.snb.2019.126743

Cited by 104 publications

(72 citation statements)

References 71 publications

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“…We reported in Table 1 the performance of up-to-date wearable chemical sensors. In particular, in 2019 Xu et al 62 , reported a electrochemically wearable Cl − sensors that could be used in parallel with a Ca 2+ sensor patch showing a sub-nerstian sensitivity and a limit of detection slightly lower than ours (see Fig. S9 in Supplementary).…”

Section: Artificial Sweat Characterization a Further Relevant Demonsmentioning

confidence: 52%

Textile sensors platform for the selective and simultaneous detection of chloride ion and pH in sweat

Possanzini

Decataldo

Mariani

et al. 2020

Sci Rep

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The development of wearable sensors, in particular fully-textile ones, is one of the most interesting open challenges in bioelectronics. Several and significant steps forward have been taken in the last decade in order to achieve a compact, lightweight, cost-effective, and easy to wear platform for healthcare and sport activities real-time monitoring. We have developed a fully textile, multi-thread biosensing platform that can detect different bioanalytes simultaneously without interference, and, as an example, we propose it for testing chloride ions (Cl−) concentration and pH level. The textile sensors are simple threads, based on natural and synthetic fibers, coated with the conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) and properly functionalized with either a nano-composite material or a chemical sensitive dye to obtain Cl− and pH selective sensing functionality, respectively. The single-thread sensors show excellent sensitivity, reproducibility, selectivity, long term stability and the ability to work with small volumes of solution. The performance of the developed textile devices is demonstrated both in buffer solution and in artificial human perspiration to perform on-demand and point-of-care epidermal fluids analysis. The possibility to easily knit or sew the thread sensors into fabrics opens up a new vision for a textile wearable multi-sensing platform achievable in the near future.

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Section: Artificial Sweat Characterization a Further Relevant Demonsmentioning

confidence: 52%

Textile sensors platform for the selective and simultaneous detection of chloride ion and pH in sweat

Possanzini

Decataldo

Mariani

et al. 2020

Sci Rep

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“…When the NFC-enabled smartphone is brought closer to an NFC antenna, it supplies power wirelessly and transmits the measured data back to the smartphone through the NFC antenna as a battery-free system. Typical NFC-enabled sensors require approximately 200 µW during operation and 3 µW during standby state, so the smartphones can be used as a power supply and data reader [73].…”

Section: Wireless Technologies For Sensors Systemsmentioning

confidence: 99%

Recent Progress in Wireless Sensors for Wearable Electronics

Park

2019

Sensors

115

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The development of wearable electronics has emphasized user-comfort, convenience, security, and improved medical functionality. Several previous research studies transformed various types of sensors into a wearable form to more closely monitor body signals and enable real-time, continuous sensing. In order to realize these wearable sensing platforms, it is essential to integrate wireless power supplies and data communication systems with the wearable sensors. This review article discusses recent progress in wireless technologies and various types of wearable sensors. Also, state-of-the-art research related to the application of wearable sensor systems with wireless functionality is discussed, including electronic skin, smart contact lenses, neural interfaces, and retinal prostheses. Current challenges and prospects of wireless sensor systems are discussed.

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“…Research has been published regarding a sensor array that integrates wireless power harvesting, field signal processing, and wireless data transmission to provide wireless power to patches with NFC-enabled smartphones and to obtain analysis through inductive coupling between antennas. Capable of real-time detection of calcium and chloride ions in various biological fluids, the ion-selective electrodes (ISE) of the sensor are designed to be flexible to accommodate skin modifications [56]. Figure 8a is a block diagram of a smartphone-based sensing system that includes an electrochemical patch and NFC-enabled reader.…”

Section: Sweat Sensorsmentioning

confidence: 99%

Near-Field Communication in Biomedical Applications

Kang

Song

Kim

et al. 2021

Sensors

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Near-field communication (NFC) is a low-power wireless communication technology used in contemporary daily life. This technology contributes not only to user identification and payment methods, but also to various biomedical fields such as healthcare and disease monitoring. This paper focuses on biomedical applications among the diverse applications of NFC. It addresses the benefits of combining traditional and new sensors (temperature, pressure, electrophysiology, blood flow, sweat, etc.) with NFC technology. Specifically, this report describes how NFC technology, which is simply applied in everyday life, can be combined with sensors to present vision and opportunities to modern people.

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Smartphone-based battery-free and flexible electrochemical patch for calcium and chloride ions detections in biofluids

Cited by 104 publications

References 71 publications

Textile sensors platform for the selective and simultaneous detection of chloride ion and pH in sweat

Textile sensors platform for the selective and simultaneous detection of chloride ion and pH in sweat

Recent Progress in Wireless Sensors for Wearable Electronics

Near-Field Communication in Biomedical Applications

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