Ultrafast underwater self-healing piezo-ionic elastomer via dynamic hydrophobic-hydrolytic domains

Kong, Zhengyang; Boahen, Elvis K.; Kim, Dong Jun; Li, Fenglong; Kim, Joo Sung; Kweon, Hyukmin; Kim, So Young; Choi, Hanbin; Zhu, Jin; Bin Ying, Wu; Kim, Do Hwan

doi:10.1038/s41467-024-46334-4

Cited by 29 publications

(3 citation statements)

References 47 publications

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“…The ideal candidates for mechanical actions are natural cellular motor proteins on biodegradable materials because they immediately transform metabolic energy into mechanical work. Problems with downscaling electromechanical and bio-hybrid actuators to the nano-and micro-scale are a thing of the past when it comes to molecular motors; a major obstacle is a need to upscale force to run devices that are several orders of magnitude bigger [16].…”

Section: An Overviewmentioning

confidence: 99%

Design and Optimization of Mechano transduction Sensors for effective analysis of proteins with Robotic interference

Su,

Feng,

Zhang

2024

mcb

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Méchano transduction sensors convert mechanical inputs into electrical signals, allowing robots to detect and interact with their environments in various bio-imaging applications. Current bio-sensor systems have some drawbacks that prevent them from being widely used in robotic applications. These include low sensitivity, short durability, and expensive manufacturing costs regarding picture prediction and categorization. To overcome these obstacles and improve robotic mechanotransduction sensors for efficient protein analysis, this work suggests Unique Sensor Fabrication Techniques (USFT). These methods enhance sensor performance in protein analysis while keeping costs low and scalability high via integrating complex micro- and nano-scale materials and architectures. In comparison to traditional sensor designs, comprehensive evaluations based on predefined parametric criteria show significant improvements in areas such as sensitivity, response time, and predictability in protein biomolecules. In addition, assessments of scalability and manufacturability point to the possibility of widespread use in robotic systems for protein categorization and prediction. In bioimaging applications, this study helps advance sensor technology for reliable and efficient robot-environment interaction.

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Section: An Overviewmentioning

confidence: 99%

Design and Optimization of Mechano transduction Sensors for effective analysis of proteins with Robotic interference

Su,

Feng,

Zhang

2024

mcb

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“…In contrast, intrinsic dynamic covalent self-assembly techniques and supramolecular kinetic chemistry have gained considerable attention in the field of SH polymers . These methods provide reproducible SH capabilities without the complexities associated with integrating and ensuring remediation chemical. , Hydrogen bonds, − metal–ligand coordination, − Diels–Alder bonds, reversible covalent bonds such as disulfide bonds, and boronate ester have typically been introduced into a polymer network to achieve SH and have garnered significant attention owing to their reversible nature, which permits repetitive repair.…”

Section: Introductionmentioning

confidence: 99%

High Stretchability and Elastic Self-Healing Polyurethane Elastomer through Dual Cross-Linking with Metal–Ligand Coordination and Hydrogen Bonds

Su,

Zhao

et al. 2024

ACS Appl. Polym. Mater.

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Herein, a high stretchability and elastic self-healing (SH) polyurethane elastomer is designed by introducing the ligand PDs with two hydrazides and one pyridine into the IPDI-type polyurethane elastomer backbone, which can guarantee the synergistic interplay of multiple dynamic bonds including abundant hydrogen bonds, strong cross-linking H-bonds (PDs−PDs), weak cross-linking H-bonds (urea and amine−ester bonds, etc.), and metal coordination bonds (PDs−Ce). The introduction of these dynamic bonds not only confers excellent SH properties but also enhances the mechanical characteristics of the material. The elastomer exhibits a remarkable tensile strength (11.3 MPa), exceptional stretchability (1336%), and high toughness (82.6 MJ m −3 ) as well as an impressive healing efficiency (η H ) reaching 91% after 24 h at ambient temperature. These characteristics are linked to the synergistic interplay of the weak H-bonds, dynamic strong bonds, and the metal−ligand bonds (PDs−Ce). Besides, the elastomer was applied in balloons, self-repairing tires, and membrane material, all of which show better performance, thus confirming the viability of the material as a high-performance SH elastomer material for various applications.

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“…These bonds enable hydrogels to regulate dynamic behaviors rapidly and efficiently. Comparatively, spontaneous chemistries of, e.g., boronic acid/diol complexation, , Schiff-base, − and Knoevenagel condensations , ensure reversible bond formation/scission in dynamic hydrogels without any stimuli, expanding their biological applications under milder conditions. However, these spontaneous dynamic processes lack controllability and have limited reconfigurable and structural designs.…”

mentioning

confidence: 99%

Ligand Dissociation of Metal-Complex Photocatalysts toward pH-Photomanipulation in Dynamic Covalent Hydrogels for Printing Reprocessable and Recyclable Devices

Wang,

Zhu,

Liu

et al. 2024

ACS Macro Lett.

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Dynamic covalent hydrogels are gaining attention for their potential in smart materials, soft devices, electronics, and more thanks to their impressive mechanical properties, biomimetic structures, and dynamic behavior. However, a significant challenge lies in designing precise and efficient dynamic photochemistry for their preparation, allowing for complex structures and control over the dynamic process. Herein, we propose a general and straightforward orthogonal dynamic covalent photochemistry strategy for preparing high-performance printable dynamic covalent hydrogels, thereby broadening their advanced applications. This photochemical strategy uses a bifunctional photocatalyst to initiate radical polymerization and release ligands through a rapid light-mediated dissociation mechanism. This process leads to a controlled increase in system pH from mildly acidic to alkaline conditions within one hundred seconds, which in turn triggers the pH-sensitive model reactions of boronic acid/diol complexation and Knoevenagel condensation. The orthogonal photochemistry enables the formation of interpenetrated and conjoined networks, significantly enhancing the mechanical properties of the hydrogels. The reversible bonds formed during the process, i.e., boronic ester and unsaturated ketone bonds, confer excellent self-healing, reprocessable, and recyclable properties on the hydrogels through photochemical pH variations. Furthermore, this rapid, controlled fabrication process and dynamic behavior are highly compatible with printing techniques, enabling the design of adaptive and recyclable sensors with different structures. These advancements are promising for various material science, medicine, and engineering applications.

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Ultrafast underwater self-healing piezo-ionic elastomer via dynamic hydrophobic-hydrolytic domains

Cited by 29 publications

References 47 publications

Design and Optimization of Mechano transduction Sensors for effective analysis of proteins with Robotic interference

Design and Optimization of Mechano transduction Sensors for effective analysis of proteins with Robotic interference

High Stretchability and Elastic Self-Healing Polyurethane Elastomer through Dual Cross-Linking with Metal–Ligand Coordination and Hydrogen Bonds

Ligand Dissociation of Metal-Complex Photocatalysts toward pH-Photomanipulation in Dynamic Covalent Hydrogels for Printing Reprocessable and Recyclable Devices

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