2020
DOI: 10.3390/bios10110170
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Liquid Metal Based Flexible and Implantable Biosensors

Abstract: Biosensors are the core elements for obtaining significant physiological information from living organisms. To better sense life information, flexible biosensors and implantable sensors that are highly compatible with organisms are favored by researchers. Moreover, materials for preparing a new generation of flexible sensors have also received attention. Liquid metal is a liquid-state metallic material with a low melting point at or around room temperature. Owing to its high electrical conductivity, low toxici… Show more

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Cited by 53 publications
(53 citation statements)
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“…Although liquid metal and its composites have been reported for the sensing of mechanical stimuli, its applications are largely limited due to the insufficient sensitivity, which has been pointed out by many researchers. [ 14–17 ] To date, the sensitivity of liquid metal‐based strain sensors is still orders of magnitudes lower than the reported state‐of‐art counterparts ( Figure g). The development of highly sensitive, liquid metal‐based sensors will benefit more skin‐integrated sensing scenarios requiring high sensitivity, such as platelet contraction and radial artery pulse detection.…”
Section: Introductionmentioning
confidence: 98%
“…Although liquid metal and its composites have been reported for the sensing of mechanical stimuli, its applications are largely limited due to the insufficient sensitivity, which has been pointed out by many researchers. [ 14–17 ] To date, the sensitivity of liquid metal‐based strain sensors is still orders of magnitudes lower than the reported state‐of‐art counterparts ( Figure g). The development of highly sensitive, liquid metal‐based sensors will benefit more skin‐integrated sensing scenarios requiring high sensitivity, such as platelet contraction and radial artery pulse detection.…”
Section: Introductionmentioning
confidence: 98%
“…Liquid metals are an emerging material gaining interest in applications for biosensors in wearable and implantable devices ( 284 ). Liu et al extensively researched this field and suggest liquid metals as a preferable alternative that benefit from low mechanical mismatch and low corrosion ( 285 ).…”
Section: Electrode Materialsmentioning
confidence: 99%
“… 12 21 To the best of our knowledge, the research of LM composite fibers is in the initial stage. 12 , 22 26 Furthermore, there has been a steady growth of research papers in this field, 27 30 reporting various LM composite fiber sensors, including self-powered sensors, 31 implantable biosensors, 32 selective biosensors, 33 strain sensors, 34 and capacitive sensors. 35 For example, Wu previously reported the LM microfibers as self-powered sensors.…”
Section: Introductionmentioning
confidence: 99%