Triboelectric Nanogenerator‐Based Sensor Systems for Chemical or Biological Detection

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(35)

Published: July 9, 2021

Abstract The rapid advances in the Internet of things and wearable devices have created a massive platform for sensor systems that detect chemical or biological agents. accelerated development these recent years has simultaneously aggravated power supply problems. Triboelectric nanogenerators (TENGs) represent thriving renewable energy technology with potential to revolutionize this field. In review, significance TENG‐based detection from perspective biochemical sensors is discussed. Further, range TENGs are classified according their roles as supplies and/or self‐powered active sensors. TENG powered further discussed on basis framework applications. working principles structures different presented, along classification based factors. addition, some representative applications introduced, corresponding challenges Finally, perspectives future innovations chemical/biological

Language: Английский

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Wearable and Mobile Sensors for Personalized Nutrition

ACS Sensors, Journal Year: 2021, Volume and Issue: 6(5), P. 1745 - 1760

Published: May 19, 2021

While wearable and mobile chemical sensors have experienced tremendous growth over the past decade, their potential for tracking guiding nutrition has emerged only three years. Currently, guidelines from doctors dietitians represent most common approach maintaining optimal status. However, such recommendations rely on population averages do not take into account individual variability in responding to nutrients. Precision recently address large heterogeneity individuals' responses diet, by tailoring based specific requirements of each person. It aims at preventing managing diseases formulating personalized dietary interventions individuals basis metabolic profile, background, environmental exposure. Recent advances digital technology, including calories-counting apps motion devices, lack ability monitoring molecular level. The realization effective precision requires synergy different sensor modalities order make timely reliable predictions efficient feedback. This work reviews key opportunities challenges toward successful platforms. Non-invasive electrochemical sensors, capable temporal variations upon intake food supplements, are excellent candidates bridge gap between biochemical analyses a approach. By providing (previously unavailable) information, offer guidance necessary supporting behavior change managed nutritional balance. Coupling rapidly emerging sensing devices—generating enormous dynamic analytical data—with data-fusion data-mining methods that identify patterns is expected revolutionize decision-making nutrition.

Language: Английский

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Skin-like hydrogel devices for wearable sensing, soft robotics and beyond

iScience, Journal Year: 2021, Volume and Issue: 24(11), P. 103174 - 103174

Published: Sept. 27, 2021

Skin-like electronics are developing rapidly to realize a variety of applications such as wearable sensing and soft robotics. Hydrogels, biomaterials, have been studied intensively for skin-like electronic utilities due their unique features softness, wetness, biocompatibility ionic capability. These could potentially blur the gap between biological systems hard artificial machines. However, development hydrogel devices is still in its infancy faces challenges including limited functionality, low ambient stability, poor surface adhesion, relatively high power consumption (as sensors). This review aims summarize current skin-inspired address these challenges. We first conduct an overview hydrogels existing strategies increase toughness conductivity. Next, we describe approaches leverage with advanced merits anti-dehydration, anti-freezing, adhesion. Thereafter, highlight state-of-the-art electronics, robotics, energy harvesting. Finally, conclude outline future trends.

Language: Английский

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Materials with Tunable Optical Properties for Wearable Epidermal Sensing in Health Monitoring

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(26)

Published: March 8, 2022

Advances in wearable epidermal sensors have revolutionized the way that physiological signals are captured and measured for health monitoring. One major challenge is to convert easily readable a convenient way. possibility based on visible readouts. There range of materials whose optical properties can be tuned by parameters such as temperature, pH, light, electric fields. Herein, this review covers highlights set with tunable their integration into Specifically, recent progress, fabrication, applications these summarized discussed. Finally, challenges perspectives next generation devices proposed.

Language: Английский

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Flexible Polydopamine Bioelectronics

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(30)

Published: May 18, 2021

Abstract Flexible bioelectronics have attracted increasing research interests due to their wide range of potential applications in human motion detection, personal healthcare monitoring, and medical diagnosis. Recently, design fabrication strategies integrated with mussel‐inspired polydopamine (PDA) demonstrated many appealing properties, which meet the structural functional requirements high‐performance flexible bioelectronics. The inherent multiple reactive sites hierarchical interactions within PDA can promote total electrochemical activities, self‐healing, surface activation, biocompatibility composite system. This review paper strives provide a comprehensive overview on this emerging area, including methodology, contributions whole composites, various PDA‐based current challenges future outlook field are also extensively discussed at end. aims serve as guideline area new inspirations toward next‐generation multifunctional broad applications.

Language: Английский

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