Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 631, P. 239 - 248
Published: Nov. 14, 2022
Language: Английский
Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 61(9)
Published: Dec. 28, 2021
Endowing a cholesteric liquid crystal elastomer (CLCE) exhibiting helicoidal nanostructure with dynamically tailorable functionalities is of paramount significance for its emerging applications in diverse fields such as adaptive optics and soft robotics. Here, mechanochromic, shape-programmable self-healable CLCE judiciously designed synthesized through integrating dynamic covalent boronic ester bonds into the main-chain polymer network. The circularly polarized reflection CLCEs can be reversibly tuned across entire visible spectrum by mechanical stretching. Thanks to introduction bonds, were found show robust reprogrammable self-healing capabilities. research disclosed herein provide new insights development 4D (color 3D shape) programmable photonic actuators towards bioinspired camouflage, optical systems, next-generation intelligent machines.
Language: Английский
Citations
252
Chemosphere, Journal Year: 2023, Volume and Issue: 320, P. 138089 - 138089
Published: Feb. 6, 2023
Human society has become increasingly reliant on plastic because it allows for convenient and sanitary living. However, recycling rates are currently low, which means that the majority of waste ends up in landfills or ocean. Increasing upcycling is a critical strategy addressing issues caused by pollution, but there several technical limitations to overcome. This article reviews advancements polymer technology aim improve efficiency waste. In food packaging, natural polymers with excellent gas barrier properties self-cleaning abilities have been introduced as environmentally friendly alternatives existing materials reduce food-derived contamination. Upcycling valorization approaches emerged transform into high-value-added products. Recent development recyclable high-performance plastics include design super engineering thermoplastics chemical bonds thermosets make them biodegradable. Further research needed develop more cost-effective scalable technologies address pollution problem through sustainable upcycling.
Language: Английский
Citations
167
Advanced Materials, Journal Year: 2022, Volume and Issue: 34(24)
Published: Jan. 19, 2022
Abstract Materials able to regenerate after damage have been the object of investigation since ancient times. For instance, self‐healing concretes, resist earthquakes, aging, weather, and seawater known times Rome are still research. During last decade, there has an increasing interest in electronic materials, for applications skin (E‐skin) health monitoring, wearable stretchable sensors, actuators, transistors, energy harvesting, storage devices. Self‐healing materials based on conducting polymers particularly attractive due their tunable high conductivity, good stability, intrinsic flexibility, excellent processability biocompatibility. Here recent developments reviewed field polymers, such as poly 3,4‐ethylenedioxythiophene (PEDOT), polypyrrole (PPy), polyaniline (PANI). The different types healing, strategies adopted optimize electrical mechanical properties, various possible healing mechanisms introduced. Finally, main challenges perspectives discussed.
Language: Английский
Citations
110
Journal of Materials Chemistry A, Journal Year: 2022, Volume and Issue: 10(17), P. 9215 - 9247
Published: Jan. 1, 2022
Since the advent of double network (DN) hydrogels nearly 20 years ago, they have flourished as smart soft materials.
Language: Английский
Citations
86
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: April 23, 2024
Abstract Wound healing is an obvious clinical concern that can be hindered by inadequate angiogenesis, inflammation, and chronic hypoxia. While exosomes derived from adipose tissue-derived stem cells have shown promise in accelerating carrying therapeutic growth factors microRNAs, intracellular cargo delivery compromised hypoxic tissues due to activated hypoxia-induced endocytic recycling. To address this challenge, we developed a strategy coat oxygen nanobubbles with incorporate them into polyvinyl alcohol/gelatin hybrid hydrogel. This approach not only alleviates wound hypoxia but also offers efficient means of delivering exosome-coated nanoparticles conditions. The self-healing properties the hydrogel, along its component, gelatin, aids hemostasis, while crosslinking bonds facilitate hydrogen peroxide decomposition, ameliorate inflammation. Here, show potential multifunctional hydrogel for enhanced healing, promoting facilitating exosome delivery, mitigating hypoxia, inhibiting inflammation male rat full-thickness model.
Language: Английский
Citations
86
Advanced Healthcare Materials, Journal Year: 2023, Volume and Issue: 12(21)
Published: April 6, 2023
Diabetic complications can be ameliorated by inhibiting excessive oxidative stress with antioxidants. To enhance therapeutic intervention, it is crucial to develop intelligent scaffolds for efficient delivery of antioxidants diabetic wounds. This study introduces reversible boronic bonds create an antioxidant hydrogel scaffold. modifies gelatin methacryloyl (GelMA) 4-carboxyphenyboronic acid (CPBA) synthesize a derivative GelMA (GelMA-CPBA), and then photo cross-links GelMA-CPBA (−)-epigallocatechin-3-gallate (EGCG) form GelMA-CPBA/EGCG (GMPE) hydrogel. The GMPE responds changes in glucose levels, more EGCG released as level increases due the dissociation ester bonds. shows good biocompatibility biodegradability, its mechanical property similar that skin tissue. Both vitro vivo results demonstrate effectively eliminate reactive oxygen species (ROS), reduce inflammation, promote angiogenesis, thereby improve collagen deposition tissue remodeling during wound healing. strategy offers new insight into glucose-responsive scaffolds, this responsive antioxidan scaffold holds great potential treatment chronic
Language: Английский
Citations
79
Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(35)
Published: June 22, 2022
Abstract Stretchable conductors with the combination of high elasticity and electric conductivity have long been pursued in soft electronics. Liquid metals (LMs), whose mechanical properties match well elastomeric matrix, successfully applied robotics, electronic skins wearable devices. But it remains challenging to develop conductive composite elastomers LMs reversible adhesion self‐healing. Herein, EGaIn droplets are uniformly dispersed into elastomer, which contain dynamic disulfide endow elastomer thermal processability, recyclability, wet adhesion, With content ≥40 vol.%, resultant shows 1.3 × 104 S m −1 , self‐healing 8.0 h, strength up 670 kPa after curing for 2.0 h. When serving as adhesive, can easily adhere metal electrode light LED even when stretched 50%. self‐adhesive bioelectrode, also detect human electromyography signals. Thus, not only may this study provide a new platform designing self‐adhesive, self‐healing, liquid metals, but their promise facileness building damage‐endurable electronics applying human–machine interfaces.
Language: Английский
Citations
78
Advances in Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 332, P. 103267 - 103267
Published: Aug. 3, 2024
Language: Английский
Citations
77
Journal of Polymer Science, Journal Year: 2022, Volume and Issue: 60(18), P. 2607 - 2634
Published: Jan. 28, 2022
Abstract Flexible sensors have great potential in the application of wearable and implantable devices, conductive hydrogels been widely used sensing devices due to their biomimetic structure, biocompatibility, adjustable transparency stimuli‐responsive electrical properties. Conventional are prone be damaged process lack long‐term reliability. Inspired by natural organisms such as mussels, introduction self‐healing capabilities has regarded a promising approach extend service life hydrogel devices. This work reviews synthesis methods associated mechanisms representative hydrogels. The principles structural design also reviewed applications for vivo / vitro signal monitoring introduced. remaining challenges perspectives this field discussed order direct future research on integration capabilities, good properties excellent mechanical performances into flexible sensors.
Language: Английский
Citations
74
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(12), P. 7829 - 7906
Published: June 3, 2024
Covalent network polymers, as materials composed of atoms interconnected by covalent bonds in a continuous network, are known for their thermal and chemical stability. Over the past two decades, these have undergone significant transformations, gaining properties such malleability, environmental responsiveness, recyclability, crystallinity, customizable porosity, enabled development integration dynamic chemistry (DCvC). In this review, we explore innovative realm polymers focusing on recent advances achieved through application DCvC. We start examining history fundamental principles DCvC, detailing its inception core concepts noting key role reversible bond formation. Then reprocessability DCvC is thoroughly discussed, starting from milestones that marked evolution progressing to current trends applications. The influence crystallinity then reviewed, covering diversity, synthesis techniques, functionalities. concluding section, address challenges faced field speculates potential future directions.
Language: Английский
Citations
65