Flexible Hybrid Wearable Sensors for Pressure and Thermal Sensing Based on a Double-Network Hydrogel

Zhang, Zhaoyu; Luo, Yiting; Li, Yizhi; Ding, Shan; Liu, Kun; Luo, Binghong

doi:10.1021/acsabm.3c00867

Cited by 4 publications

(2 citation statements)

References 35 publications

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“…521 522 In the context of nanosensors, PDA coated carbon nanotubes were embedded in a PVA-PEG hydrogel matrix to fabricate flexible wearable sensors. 523 In another instance, PDA-Au nanoparticles were used to decorate stellate mesoporous silica in a bid to improve characteristics/properties such as stretchability, sensitivity, tensile strength, self-healing properties among others to enable design of [518][519][520] PDA is also frequently used as coating to modify surface properties of a wide variety of materials. 521 522 In the context of nanosensors, PDA coated carbon nanotubes were embedded in a PVA-PEG hydrogel matrix to fabricate flexible wearable sensors.…”

Section: Institute Of Science and Technology (Kist)mentioning

confidence: 99%

“…521 522 In the context of nanosensors, PDA coated carbon nanotubes were embedded in a PVA-PEG hydrogel matrix to fabricate flexible wearable sensors. 523 In another instance, PDA-Au nanoparticles were used to decorate stellate mesoporous silica in a bid to improve characteristics/properties such as stretchability, sensitivity, tensile strength, self-healing properties among others to enable design of wearable sensors. 524 Use of PDA reported in patent applications appears to be similar to those reported in journal publications including use of PDA-multiwalled carbon nanotubes in electrochemical sensors.…”

Section: Institute Of Science and Technology (Kist)mentioning

confidence: 99%

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Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Hughes,

Ganesan,

Tenchov

et al. 2024

Preprint

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Since their inception in the early 1960s, the use of nanoscale materials has progressed in leaps and bounds, and their role in diverse fields ranging from human health to energy is undeniable. In this report, we utilize the CAS Content Collection, a vast repository of scientific information extracted from journal and patent publications, to identify emerging topics in this field. This involves understanding trends, such as the growth of certain topics over time, as well as establishing relationships between emerging topics. We achieved this by using a host of strategies including a quantitative natural language processing (NLP) approach to identify 279 emerging topics and sub-topics across three major categories – materials, applications, and properties – by surveying roughly 3 million publications in the nanoscience landscape. This wealth of information has been condensed into several conceptual mind maps and other graphs that provide metrics related to the growth of identified emerging concepts, group them into hierarchical classes, and explore the connections between them. We delved deeper into four major emerging applications of nanoscale materials – drug delivery, sensors, energy, and catalysis – to provide a more comprehensive and detailed picture of the use of nanotechnology in these fields. In addition, we leveraged the CAS registry, consisting of over 250 million substances, to determine and discover substances across varied classes (such as polymers, elements, organic/inorganic molecules) and how they are utilized in the 4 major applications. Our extensive analysis taking advantage of an NLP-based approach along with robust CAS indexing provides valuable insights in the field that we hope can help to inform and drive future research efforts.

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Section: Institute Of Science and Technology (Kist)mentioning

confidence: 99%

“…521 522 In the context of nanosensors, PDA coated carbon nanotubes were embedded in a PVA-PEG hydrogel matrix to fabricate flexible wearable sensors. 523 In another instance, PDA-Au nanoparticles were used to decorate stellate mesoporous silica in a bid to improve characteristics/properties such as stretchability, sensitivity, tensile strength, self-healing properties among others to enable design of wearable sensors. 524 Use of PDA reported in patent applications appears to be similar to those reported in journal publications including use of PDA-multiwalled carbon nanotubes in electrochemical sensors.…”

Section: Institute Of Science and Technology (Kist)mentioning

confidence: 99%

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Hughes,

Ganesan,

Tenchov

et al. 2024

Preprint

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High‐Strength, Antiswelling Directional Layered PVA/MXene Hydrogel for Wearable Devices and Underwater Sensing

Zhang,

Guo,

Gao

et al. 2024

Advanced Science

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Hydrogel sensors are widely utilized in soft robotics and tissue engineering due to their excellent mechanical properties and biocompatibility. However, in high‐water environments, traditional hydrogels can experience significant swelling, leading to decreased mechanical and electrical performance, potentially losing shape, and sensing capabilities. This study addresses these challenges by leveraging the Hofmeister effect, coupled with directional freezing and salting‐out techniques, to develop a layered, high‐strength, tough, and antiswelling PVA/MXene hydrogel. In particular, the salting‐out process enhances the self‐entanglement of PVA, resulting in an S‐PM hydrogel with a tensile strength of up to 2.87 MPa. Furthermore, the S‐PM hydrogel retains its structure and strength after 7 d of swelling, with only a 6% change in resistance. Importantly, its sensing performance is improved postswelling, a capability rarely achievable in traditional hydrogels. Moreover, the S‐PM hydrogel demonstrates faster response times and more stable resistance change rates in underwater tests, making it crucial for long‐term continuous monitoring in challenging aquatic environments, ensuring sustained operation and monitoring.

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Highly Transparent and Strength Conductive Hydrogel Based on Dendrobium Officinale Polysaccharide for Wearable Strain Sensors

Wang,

Liu,

Jia

et al. 2024

ACS Appl. Polym. Mater.

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Owing to their superior flexibility and compatibility with biological systems, dual-network hydrogels have garnered significant interest in the realm of research dedicated to the development of flexible wearable sensors. Electronic skin, or E-skin, has the capability to seamlessly combine high mechanical resilience, sensory acuity, and a broad spectrum of adhesion. The potential of this technology for applications in the fields of intelligent robotics and prosthetic devices has garnered considerable attention. In this study, a polymer substance, dendrobium officinale polysaccharide (DOP), was successfully introduced as the basic skeleton of the second-layer network structure of the hydrogel, and as a result, a multifunctional conductive hydrogel (PASD-Zn hydrogels) was synthesized. Notably, the addition of DOP to the hydrogel formulation resulted in a well-balanced set of mechanical properties (with an elongation at break of 1248% and a tensile strength of 0.238 MPa), excellent plasticity capabilities, and significant self-recovery. As a wireless strain sensor, the PASD-Zn sensor can monitor mechanically conducted signals associated with human motion. Notably, the hydrogel exhibits excellent self-adhesion on a variety of surfaces. This hydrogel holds great promise for advancing wearable devices and bionic skin.

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Flexible Hybrid Wearable Sensors for Pressure and Thermal Sensing Based on a Double-Network Hydrogel

Cited by 4 publications

References 35 publications

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

High‐Strength, Antiswelling Directional Layered PVA/MXene Hydrogel for Wearable Devices and Underwater Sensing

Highly Transparent and Strength Conductive Hydrogel Based on Dendrobium Officinale Polysaccharide for Wearable Strain Sensors

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