ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Che Wu,Yan Cheng,Kai Wang,Yimeng Ni,Wenyi Wang,Ruizi Wu,Jianying Huang,Yuekun Lai
With the increasing demand in fields such as wearable sensors, soft robotics, tissue engineering, and wound dressings, the development of hydrogels with strong adhesion in wet environments has become a critical focus of research. However, most existing adhesive materials lack the ability to transition rapidly and reversibly between the adhesive and nonadhesive states, and their adhesion is often limited to a single wet environment. In this study, a smart interfacial adhesive hydrogel with tunable adhesion properties across diverse liquid environments is presented. By tailoring interchain interactions and leveraging electrostatically induced traction between hydrophilic and hydrophobic chain segments, the hydrogel achieves reversible adhesion modulation in response to temperature changes while maintaining strong wet adhesion. Notably, its adhesive strength at elevated temperatures (45 °C) is approximately three times greater than at lower temperatures (5 °C). The adhesive hydrogel exhibits an adhesive strength of 227 kPa in aqueous environments and 213 kPa in oil-containing environments. This innovative design strategy enables the hydrogel to exhibit broad switchable, and dynamic wet adhesion capabilities, unlocking significant potential for a wide range of applications.
研究领域:
材料科学
·
生物医学工程
·
软物质物理
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产品关联
DOI
高影响因子
POLYMER INTERNATIONAL
·
2020
·Vol. 69
·期 9
·876-882
·
IF 2.574
Shaobin Xu,Dekun Sheng,Yan Zhou,Haohao Wu,Haopu Xie,Xiangdong Liu,Yuming Yang
Most self-healing materials based on noncovalent bonding suffer from poor mechanical performance, which largely limits their further application. Herein, we designed and synthesized robust and healable polymers that can be healed under heating. They consist of a linear and three-arm branched polyurethane mixture with triazole ligand end groups that are noncovalently linked through Fe–triazole interaction. The three-arm branched polyurethane in the polymer mixture would imply parts of Fe-triazole coordination bonds were replaced by covalent bonds and, as a consequence, yield materials with improved mechanical properties. Additionally, the mechanical properties of resulting polymers can be tuned by the number of Fe–triazole supramolecular crosslinks. Due to the dynamic nature of Fe–triazole interaction, all the metallopolymers exhibit excellent healable efficiency (over 90%) based on toughness. © 2020 Society of Chemical Industry
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2024
·
IF 5.8
Shu He,Zeng Liu,Hongli Fang,Xinyu Wei,Zhiyue Cui,Wen Gu,Wei Shao
Hydrogels are extensively utilized as strain sensors in the domain of wearable devices. However, balancing mechanical properties, adhesion, and self-healing capabilities in hydrogel sensors has consistently been a research challenge. In this study, a novel P(AA-AMPS)/PEI hydrogel was synthesized through a straightforward one-step radical polymerization with acrylic acid (AA) and 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) as monomers, polyethyleneimine (PEI) and AlCl 3 as physical crosslinkers to effectively solve the above challenge. The P(AA-AMPS)/PEI hydrogel demonstrated good mechanical properties with a tensile strength of 42.54 kPa, a high self-adhesion strength to pigskin up to 37.48 kPa, and rapid self-healing efficiency of 100 % after 1 h. The P(AA-AMPS)/PEI hydrogel sensor exhibited good stability, precision, and dependability in real-time monitoring of both subtle and large human movements due to the ultra-high sensitivity (GF values were 5.92, 13.82, and 20.89 within the strain ranges of 0–300 %, 300–600 %, and 600–850 %). It must be noted that the sensing performance of the healed P(AA-AMPS)/PEI hydrogel remained unchanged. The developed hydrogel sensor exhibited promising applications in wearable devices, electronic skin, and human–machine interaction.
研究领域:
材料科学
·
生物医学工程
·
传感器技术
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产品关联
DOI
高影响因子
RSC Advances
·
2022
·Vol. 12
·期 54
·35396-35408
·
IF 4.036
Qingsong Shi,Weilin Wu,Bing Yu,Mengqing Ren,Lili Wu,Chaocan Zhang
Self-healing materials have attracted widespread attention owing to their capacity to extend the lifetime of materials and improve resource utilization. However, achieving superior mechanical performance and high self-healable capability simultaneously under moderate conditions remains a long-standing challenge. Integrating multiple dynamic interactions in waterborne polyurethane (WPU) systems can overcome the above-mentioned issue. Herein, environmentally friendly WPU systems containing multiple hydrogen bonds and boronic ester bonds in their polymer backbones were synthesized, where 2,6-diaminopyridine (DAP) and boric acid (BA) served as a dynamic chain extender and reversible cross-linking agent, respectively. The chain structure of the polymer was adjusted by controlling the ratio (DAP/BA) of hard segments, which could effectively meet the requirement of mechanical robustness and desirable self-healable efficiency. Benefiting from multiple dynamic interactions, the prepared WPU elastomer exhibited good mechanical properties, such as tensile strength (from 18.89 MPa to 30.78 MPa), elongation (about 900%) and toughness (from 54.82 MJ m−3 to 92.74 MJ m−3). Driven by water and heat, the IP-DAP40-BA10-WPU film cut in the middle exhibited good self-healing ability, with healing efficiencies of tensile stress of 90.74% and elongation of 91.29% after self-healing at 80 °C for 36 h. Meanwhile, the synthesized WPU elastomer exhibited good water resistance and thermal stability. This work presents a novel way to design robust self-healable materials, which will have wide promising applications in flexible electronics, smart coatings and adhesives.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2024
·
IF 5.8
Huanxia Wang,Yuan Chen,Yafeng Huang,Xuan Tian,Jinfei Wang,Chenglong Li,Kejun Zhong,Pengxiang Jia
Polyurethane elastomers were considered as an ideal material for flexible devices. However, the application of polyurethane elastomers was still largely limited by the disadvantages of poor self-healing property and low conductivity. In this work, a self-healing polyurethane with adjustable mechanical performances was constructed via the introduction of reversible dynamic interactions in the polyurethane matrix, such as metal ion-tripyridine coordinations, disulfide bonds and hydrogen bonds. And lithium salt was incorporated into the polyurethane to achieve ionic conductivity. The obtained polyurethane exhibited adjustable breaking strength with a range of 0.77 ∼ 10.75 MPa, breaking elongation in the range of 1719 ∼ 1863 %, and conductivity in the range of 0.08 ∼ 1.57 × 10 −3 S/m by adding different LiTFSI (5 ∼ 35 wt%) into the polyurethane. In addition, the polyurethane displayed efficient self-healing behavior, well fatigue resistance, and recyclability. Also, the polyurethane showed great application prospects as flexible sensors by performing stable and sensitive responses to a wide range of human body movements.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
Food Bioscience
·
2025
·
IF 5.9
Qian Zhou,Dankui Liao,Yongfang Xu,Lei Wang,Lixia Sun,Jianhua Sun,Xiongdiao Lan,Zhangfa Tong,Guangzhi Zhou
From the perspective of functional food development, an in-depth study of the interaction between food-derived angiotensin-converting enzyme inhibitory peptides (ACEIPs) and serum albumin is crucial for understanding their physicochemical stability after absorption within the body. Thus, this study explored the interaction mechanisms of bovine serum albumin (BSA) with bonito sauce-derived ACEIP Ala-Gly-Pro (AGP) using biosafety, biophysics, and computational biology. The results indicated that AGP demonstrated good biosafety, and competitively inhibited ACE activity (500 ± 24 μmol/L). Multi-spectroscopic and isothermal titration calorimetry analysis proved that AGP could spontaneously insert in the site I of BSA and form a non-covalent complex, clearly changing the structure and microenvironment of BSA. Molecular docking and molecular dynamics simulations successfully revealed the dynamic conformational changes and non-covalent interactions in the BSA–AGP complex. These findings provide valuable data on food-derived ACEIP AGP, serving as a reference and model for studying similar peptides in developing antihypertensive functional foods.
研究领域:
生物化学
·
分子生物学
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食品科学
·
药理学
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产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2020
·Vol. 45
·期 1
·314-320
·
IF 3.288
Yuewen Chen,Shengping Dai,Hao Zhu,Hongwei Hu,Ningyi Yuan,Jianning Ding
Shape memory hydrogels offer new opportunities for the development of smart wearables due to their intelligent responsiveness. In this study, a self-healing hydrogel with multiple shape memory properties was prepared via one-step polymerization. The synergy of dynamic electrostatic interactions and imine bonds afforded a physically and chemically dual-crosslinked hydrogel with high stretchability (maximum strain of 556%), tensile fracture strength (63 kPa), and self-healing properties (99% healing efficiency at 60 °C within 4 h). Through the reversible construction of physical crosslinking points, the temporary shape of the hydrogel was fixed by two different types of stimuli, pH and metal ions (Ag+, Zn2+, etc.), with the shortest shape fixation time of 15 s. Furthermore, the hydrogel was used to fabricate resistive strain sensors and capacitive pressure sensors, and both types displayed high sensitivity, stability, and cyclability. The sensors could detect various types of human body movement, such as finger bending, swallowing, and pulse, indicating a promising future in smart wearables and healthcare monitoring.
研究领域:
材料科学
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生物医学工程
·
智能穿戴设备
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DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2025
·
IF 2.6
Meng Fanyu,Cheng Kaichuang,Wang Chunyu,Chen Hongyun,Tian Qinghua,Zhang Wei
Self-healing polymer electrolytes are in high demand for enhancing the cycle stability and reliability of flexible and wearable electronics. Herein, a healable, nonflammable poly(ionic liquids) (PIL) electrolyte is fabricated. It is based on an imidazolium-type PIL copolymer that contains cross-linkers with a disulfide bond and hydrogen bond (SSH), ionic liquid, and lithium salt. The prepared SSH-PIL electrolytes display high ionic conductivity and outstanding self-healing capacity due to multiple dynamic interactions. The optimized SSH-PIL2 electrolyte films exhibit superior ionic conductivity (exceeding 10 –4 S cm −1 at 30 °C), a wide electrochemical stability window (5.2 V vs. Li/Li + ), and a high lithium-ion transference number (0.43). The assembled LiFePO 4 /SSH-PIL2/Li cell delivers a specific discharge capacity of 153.3 mAh g −1 at 0.1 C, and a capacity retention of 93.3% after 100 cycles. More significantly, the SSH-PIL2 electrolyte can quickly repair mechanical damage (within 20 min at 60 °C). The healing efficiency in terms of mechanical properties and specific discharge capacity is as high as 94.6% and 98.0%, respectively. This work presents a promising approach for developing reliable and safe electronic devices.
研究领域:
材料科学
·
电化学
·
高分子化学
·
能源存储
·
功能材料
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产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 24
·8813-8824
·
IF 5.7
Shenxin Pan,Changzheng Xiang,Zhendong Liu,Gangsheng Tong,Chongyin Zhang,Xinyuan Zhu
Hydrogel-based sensors commonly manifest pronounced swelling in aqueous milieus, a phenomenon that can precipitate deterioration of mechanical performance and distortion in output signals, thereby markedly constraining their expansive applicability. Drawing inspiration from the hierarchical heterogeneous cross-linking architecture inherent in biological tissues, an anti-swelling supramolecular hydrogel with robustness, fast self-recovery, and strain-sensitivity was meticulously engineered through leveraging the principles of multiple dynamic interaction matching. The heterogeneous structure for the hydrogels was constructed by integrating both ‘rigid’ carboxyl-Zr4+ coordination complexes and ‘soft’ hydrophobic micro-regions mediated by electrostatic interactions into the system. The synergistic interplay between reversible rigid and flexible cross-linking endowed the supramolecular hydrogels with robust mechanical properties, evidenced by a strength of 3.64 MPa, toughness of 6.83 MJ m−3, and complete self-recovery within 7 minutes, alongside anti-swelling capabilities in various aqueous environments, including acidic, alkaline, and saline solutions. Moreover, the hydrogels developed desirable sensing properties on account of the contribution of dynamic ions (Br−, Cl−, and Zr4+), enabling accurate signal output under diversified frequencies and strains. Consequently, these hydrogels were adapted to construct underwater sensors capable of transmitting information through Morse code. This bio-inspired design strategy achieved the perfect combination of mechanical, anti-swelling, and sensing properties in the hydrogels, offering novel insights into the fabrication of underwater sensors.
研究领域:
材料科学
·
仿生工程
·
传感器技术
·
高分子化学
·
水下通信
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DOI
高影响因子
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2021
·Vol. 413
·期 5
·1485-1492
·
IF 4.157
Liu Lingfei,Sun Huijuan,Xiao Lixia,Yang Zhen-quan,Han Jie,Gong Xiaojuan,Hu Qin
In this work, an ultrasensitive sensing system based on fluorescent carbon dots (CDs) was developed for the tartrazine (Tar) determination. The CDs were prepared via a simple one-pot hydrothermal method with m-phenylenediamine as the only precursor. The physical and chemical properties were in detail characterized by transmission electron microscopy (TEM), MALDI-TOF MS, UV-vis absorption and photoluminescence (PL) spectroscopy, elemental analysis, and Fourier transform infrared spectroscopy (FTIR). Upon exposure to Tar, the fluorescence of CDs was efficiently quenched via the dynamic interaction between CDs and Tar as well as the inner filter effect (IFE). With this information, the CDs were proposed as a fluorescence probe for Tar detection. It was found that CDs had high sensitivity and selectivity for Tar sensing, and the linear relationship was observed in the range of 0.01–25.0 μM with the corresponding detection limit (3σ/k) of 12.4 nM, which is much more sensitive than any of the existed CD-based sensing platform. The investigated sensing system was finally utilized for Tar sensing in various food matrices with a high degree of accuracy. The spiked recoveries were in a range of 96.4–105.2%, and the relative standard deviations (RSDs) were lower than 4.13%. This work highlights the great application prospects of CDs for Tar sensing in a rapid, simple, and sensitive way.
研究领域:
分析化学
·
食品科学
·
纳米技术
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产品关联
DOI
PubMed
高影响因子
EUROPEAN POLYMER JOURNAL
·
2021
·
IF 4.598
Minhui Wang,Jiahui Zhou,Xiaolin Jiang,Yeming Sheng,Min Xu,Xun Lu
Self-healing materials have attracted considerable attention because of their sustainable property of prolonging service life and reducing resource consumption. However, as plenty of room-temperature self-healable materials have been studied, it still remains a great challenge to equip these materials with admirable mechanical strength since there is a compromise between intermolecular interactions and chain mobility. Herein, a novel strategy of integrating self-healing ability with robustness in polymeric elastomer at ambient condition was developed. The synthesized polyurethane was equipped with multiple reversible interactions including disulfide bonds, oxime urethane bonds, H-bonds and coordination interactions, and formed triple cross-linking network. What’s important is that Cu 2+ could not only act as the coordination center, but also serve as the catalyst to accelerate disulfide exchange and oxime urethane exchange reaction. XPS and stress relaxation tests revealed that the introduction of CuCl 2 reduced the relaxation activation energy of both the disulfide metathesis and oxime urethane exchange reaction. Thanks to the multiple interactions design and the effects of Cu 2+ , the elastomer was endowed with excellent mechanical strength of 19.5 MPa and self-healing efficiency of 83% at room temperature.
研究领域:
材料科学
·
聚合物化学
·
机械工程
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Kuiyuan Zhang,Xiangrong Shi,Juxiang Chen,Tao Xiong,Bo Jiang,Yudong Huang
The bio-integrated electronics industry is booming and becoming more integrated with biological tissues. However, it is challenging to obtain high-level self-healing of sensitivity and durability of bifunctional sensor when maintaining their long-term fatigue-resistance and high stretchability. Herein, a high performance self-healable bifunctional sensor was demonstrated through synergistic dynamic interactions between polysiloxane and silver nanoflakes (AgFs) and in-situ formed silver nanoparticles (AgNPs). The bifunctional sensor showed high sensitivity (gauge factor reached 39.5), exceptional electrical self-healability (at ambient temperature), and durability (more than 1000 cycles) by virtue of superflexible siloxane chains in the self-healing polymer, strong dynamic silver-thiolate coordination interactions, and the migration of silver nanoparticles. Finally, multiple human motions and health status were monitored, even after multiple cycles of healing, these “self-healed” sensing signals were still extremely consistent with the pristine ones, indicating the excellent reliabilities and healing stabilities of the bifunctional sensor.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）