Toward Flexible Surface‐Enhanced Raman Scattering (SERS) Sensors for Point‐of‐Care Diagnostics

Advanced Science, Journal Year: 2019, Volume and Issue: 6(16)

Published: July 2, 2019

Abstract Surface‐enhanced Raman scattering (SERS) spectroscopy provides a noninvasive and highly sensitive route for fingerprint label‐free detection of wide range molecules. Recently, flexible SERS has attracted increasingly tremendous research interest due to its unique advantages compared rigid substrate‐based SERS. Here, the latest advances in diagnostic devices are investigated in‐depth. First, intriguing prospect point‐of‐care diagnostics is briefly described, followed by an introduction cutting‐edge technique. Then, focus moved from conventional emerging The main part this report highlights recent three categories substrates, including actively tunable SERS, swab‐sampling strategy, situ approach. Furthermore, other promising means also introduced. substrates with low‐cost, batch‐fabrication, easy‐to‐operate characteristics can be integrated into portable spectroscopes diagnostics, which conceivable penetrate global markets households as next‐generation wearable sensors near future.

Language: Английский

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Stretchable Electronics Based on PDMS Substrates

Advanced Materials, Journal Year: 2020, Volume and Issue: 33(6)

Published: Aug. 23, 2020

Abstract Stretchable electronics, which can retain their functions under stretching, have attracted great interest in recent decades. Elastic substrates, bear the applied strain and regulate distribution circuits, are indispensable components stretchable electronics. Moreover, self‐healing property of substrate is a premise to endow electronics with same characteristics, so device may recover from failure resulting large frequent deformations. Therefore, properties elastic crucial overall performance devices. Poly(dimethylsiloxane) (PDMS) widely used as material for not only because its advantages, include stable chemical properties, good thermal stability, transparency, biological compatibility, but also capability attaining designer functionalities via surface modification bulk tailoring. Herein, strategies fabricating on PDMS substrates summarized, influence physical PDMS, including status, modulus, geometric structures, discussed. Finally, challenges future opportunities based considered.

Language: Английский

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Progress in wearable electronics/photonics—Moving toward the era of artificial intelligence and internet of things

InfoMat, Journal Year: 2020, Volume and Issue: 2(6), P. 1131 - 1162

Published: July 12, 2020

Abstract The past few years have witnessed the significant impacts of wearable electronics/photonics on various aspects our daily life, for example, healthcare monitoring and treatment, ambient monitoring, soft robotics, prosthetics, flexible display, communication, human‐machine interactions, so on. According to development in recent years, next‐generation electronics photonics are advancing rapidly toward era artificial intelligence (AI) internet things (IoT), achieve a higher level comfort, convenience, connection, intelligence. Herein, this review provides an opportune overview progress electronics, photonics, systems, terms emerging materials, transducing mechanisms, structural configurations, applications, their further integration with other technologies. First, general is summarized applications physical sensing, chemical interaction, Then self‐sustainable systems discussed based system energy harvesting storage Next, technology fusion AI reviewed, showing emergence rapid intelligent/smart systems. In last section review, perspectives about future trends provided, that is, multifunctional, self‐sustainable, intelligent AI/IoT era. image

Language: Английский

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Flexible Hybrid Sensors for Health Monitoring: Materials and Mechanisms to Render Wearability

Advanced Materials, Journal Year: 2019, Volume and Issue: 32(15)

Published: July 24, 2019

Abstract Wearable electronics have revolutionized the way physiological parameters are sensed, detected, and monitored. In recent years, advances in flexible stretchable hybrid created emergent properties that enhance compliance of devices to our skin. With their unobtrusive attributes, skin conformable sensors enable applications toward real‐time disease diagnosis continuous healthcare monitoring. Herein, critical perspectives future digital health monitoring provided, emphasizing its role sensing. particular, strategies within sensor composition render flexibility stretchability while maintaining excellent sensing performance considered. Next, novel approaches functionalization for physical or biochemical stimuli extensively covered. Subsequently, wearable measuring such as strain, pressure, temperature, well biological changes metabolites electrolytes reported. Finally, implications early detection discussed, concluding with a perspective into challenges opportunities emerging designs next few years.

Language: Английский

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Recent progress, challenges, and prospects of fully integrated mobile and wearable point-of-care testing systems for self-testing

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(6), P. 1812 - 1866

Published: Jan. 1, 2020

POCT systems have been developed toward new form factors as wearable and mobile POCT. New advancements in these may provide self-testing capability for on-the-spot diagnosis monitoring to facilitate rapid treatment decisions.

Language: Английский

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Recent advances in conductive hydrogels: classifications, properties, and applications

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 52(2), P. 473 - 509

Published: Dec. 9, 2022

Hydrogel-based conductive materials for smart wearable devices have attracted increasing attention due to their excellent flexibility, versatility, and outstanding biocompatibility. This review presents the recent advances in multifunctional hydrogels electronic devices. First, with different components are discussed, including pure single network based on polymers, additional additives (i.e., nanoparticles, nanowires, nanosheets), double additives. Second, a variety of functionalities, self-healing, super toughness, self-growing, adhesive, anti-swelling, antibacterial, structural color, hydrophobic, anti-freezing, shape memory external stimulus responsiveness introduced detail. Third, applications flexible illustrated strain sensors, supercapacitors, touch panels, triboelectric nanogenerator, bioelectronic devices, robot). Next, current challenges facing summarized. Finally, an imaginative but reasonable outlook is given, which aims drive further development future.

Language: Английский

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Smart Flexible Electronics‐Integrated Wound Dressing for Real‐Time Monitoring and On‐Demand Treatment of Infected Wounds

Advanced Science, Journal Year: 2020, Volume and Issue: 7(6)

Published: Jan. 10, 2020

Abstract As the most frequent wound complication, infection has become a major clinical challenge in management. To overcome “Black Box” status of wound‐healing process, next‐generation dressings with abilities real‐time monitoring, diagnosis during early stages, and on‐demand therapy attracted considerable attention. Here, by combining emerging development bioelectronics, smart flexible electronics‐integrated dressing double‐layer structure, upper layer which is polydimethylsiloxane‐encapsulated electronics integrated temperature sensor ultraviolet (UV) light‐emitting diodes, lower UV‐responsive antibacterial hydrogel, designed. This expected to provide via wound‐temperature monitoring treatment release antibiotics from hydrogel situ UV irradiation. The system possesses good flexibility, excellent compatibility, high sensitivity durability. Animal experiment results demonstrate that capable real time, detecting bacterial providing effective on basis need. proof‐of‐concept research holds great promise developing new strategies significantly improve management other pathological diagnoses treatments.

Language: Английский

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Paper-Based Sensors for Gas, Humidity, and Strain Detections: A Review

ACS Applied Materials & Interfaces, Journal Year: 2020, Volume and Issue: 12(28), P. 31037 - 31053

Published: June 25, 2020

Paper, as a flexible, low-cost, lightweight, tailorable, environmental-friendly, degradable, and renewable material, is emerging in electronic devices. Especially, many kinds of paper-based (PB) sensors have been reported for wearable applications recent years. Among them, the PB gas, humidity, strain are widely studied monitoring from human body environment. However, often coexist interact, paper itself hydrophilic resulting that it still challenging to develop high-performance specialized detections. Therefore, necessary summarize discuss them systematically. In this review, we focus on summarizing state-of-art studies sensors. Specifically, fabrications (electrodes sensing materials) summarized discussed. The current challenges potential trends detections also outlined. This review not only can help readers understand development status but helpful find out solve problems field through comparative reading.

Language: Английский

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Recent advances in solid-contact ion-selective electrodes: functional materials, transduction mechanisms, and development trends

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(13), P. 4405 - 4465

Published: Jan. 1, 2020

This article presents a comprehensive overview of recent progress in the design and applications solid-contact ion-selective electrodes (SC-ISEs).

Language: Английский

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Multifunctional conductive hydrogel-based flexible wearable sensors

TrAC Trends in Analytical Chemistry, Journal Year: 2020, Volume and Issue: 134, P. 116130 - 116130

Published: Nov. 26, 2020

Language: Английский

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