ACS Applied Materials & Interfaces
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2025
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IF 8.2
Xuebin Lian,Yuanjian Li,Penghui Li,Yilin Jin,Xinyu Zhao,Jiangwen Li,Dehuan Kong,Shujun Zhao,Shuangfei Xiang,Feiya Fu,Xiangdong Liu
The problems of strength–toughness trade-off and stability–switchability conflict make it a huge challenge to integrate exceptional adhesion and desired recycling performances into a single system. Inspired by wood cellulose molecular chain structure, a parallel-ordered dynamic boronic esters cross-linking network is presented by using 4-dimethylaminopyridine as a countercation stabilizing the boron center to induce boric acid to form ionic spiroborate linkage with linear hydroxyl-decorated epoxy polymer. The ionic spiroborate polymer network has a high cross-linking degree to contribute to structural stability and adhesion strength. Moreover, the unique ionic spiroborate bond cooperates with the parallel-ordered structure, providing a highly effective path and a rapid exchange rate and thus affording excellent closed-loop recycling properties. Given the effects, a superior adhesion strength of 30.86 ± 0.74 MPa is found along with an excellent debonding work of 64929 N m–1. Also, adhesives show excellent environmental reliability. In addition, the prepared adhesives exhibit good chemical/physical recyclability and display 106.8% conservation of adhesion strength after 3 bonding and debonding tests. This work provides a strategy to construct high-performance adhesives that combine robust adhesion and recyclable properties.
研究领域:
材料科学
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高分子化学
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胶粘剂技术
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可持续化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
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2020
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IF 8.247
Jianhui Li,Zaisheng Wang
Trimethyl borate (TMB) has been identified as electrolyte additive to suppress self-discharge for high voltage layered lithium-rich oxide cathode (LRO) for lithium ion batteries in our previous work. To expand pervious findings, its derivatives, triethyl borate (TEB) and tripropyl borate (TPB) with increased alkyl chains, have been considered as electrolyte additives to mitigate self-discharge behavior of LRO cathode for lithium ion batteries and we make a contrast to explain which one is better and why is better. It is found that fully charged (4.8 V, vs. Li/Li + ) LRO cathode suffers severe self-discharged issue upon storage in standard (STD) electrolyte (1 mol L −1 LiPF 6 -EC/EMC/DEC (3:5:2, in weight)). In contrast, this detrimental self-discharge behavior of LRO cathode at high voltage can be effectively depressed by introducing TEB or TPB into the electrolyte system. Combinations of electrochemical methods and multi spectroscopy techniques have been employed to evaluate effects of TEB and TPB on the LRO cathode surface . They reveal that the B–O and B–F bonds species in the film formed by TEB and TPB prevents electrolyte decomposition and protects LRO from structure transformation. These species in the film formed by TEB is much more than TPB, which explains the better effect for TEB.
研究领域:
材料科学
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电化学
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DOI
高影响因子
Biomaterials Science
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2025
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IF 5.7
Ashleigh Tinotenda Chitakunye,Shihui Zhang,Qin Zhu,Jianan Ni,Qiuyu Sun,Yuxin Lei,Jie Xu,Odinaka Cassandra Ezekiel,Bingxin Li,Hanxuan Lin,Miao Zhang,Lin Cai
Uncontrolled bleeding post-surgery or trauma presents a significant medical challenge that often leads to complications such as hypotension, organ dysfunction, and mortality. Effective hemostatic agents are characterized by facilitating rapid bleeding cessation, adequate wet tissue adhesion, easy removal, and minimal hemolysis rate. Building on our previous work with tsPBA@PVA hydrogel, we developed a modified synthesis approach to yield Fe3O4@gel, designed to enhance hemostasis. This system is composed of Fe3O4, N1-(4-boronobenzyl)-N3-(4-boronophenyl)-N1,N1,N3,N3-tetramethylpropane-1,3-diaminium, tsPBA, and polyvinyl alcohol, PVA, which undergo a reaction to yield a borate ester. The hydrogel demonstrated excellent self-healing and adhesion properties by forming covalent bonds with diols on material surfaces. Moreover, the presence of polar functional groups within the hydrogel such as -OH, -CH, and -CO groups enabled strong hydrogen bonding with tissue surfaces. The hydrogel could also be easily removed from the wound site without causing rebleeding. In vitro, Fe3O4@gel exhibited a hemolysis rate of less than 5%. Both our in vivo and in vitro results demonstrated the formation of a blood clot enhanced by the presence of Fe3O4 in the hydrogel. These findings suggest the potential of Fe3O4@gel as a promising candidate for promoting hemostasis in wound healing.
研究领域:
生物医学工程
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材料科学
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医学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Shengdu Yang,Keyu Lian,Pan Tian,Dianheng Lu,Junhua Zhang
Although numerous strategies refer to dynamic covalent bond exchanges of small molecules for self-repairing thermosets, it remains a critical challenge to be able to jointly tune the malleability and dynamic properties of photocurable materials via extending dynamical small molecule bridging chains with tunable kinetic features. Herein, we successfully synthesized two typical diboronic ester molecules (diboronic ester dithiol/diacid) with variable dioxaborolane metathesis kinetics, which acted as dynamical interlinking segments constructing simple hydrogenated bisphenol A (HBA) epoxy backbone to achieve dynamically cross-linking feature. Subsequently, the acrylate- and anhydride-modified HBA vitrimers bearing diboronic ester-extending segment variants and photocuring traits are successfully synthesized by a one-pot reaction. Consequently, it is demonstrated that the embedded amounts of dynamic diboronic ester bonds in the backbone play a key role in the photopolymerization rate of photocurable vitrimers. The photopolymerization rate decreases significantly as more diboronic ester segments. Moreover, the diboronic ester dithiol-mediated photocurable vitrimer (HBA-S) exhibits enhanced malleability (strain at break of 26.6 %), desirable photo-crosslinked network, and accelerated thermal-triggered self-healing ability (scratch self-healing efficiency of closing to 100 % at 150 °C), compared to those of the diboronic ester diacid-mediated vitrimer (HBA-O) under identical conditions. This work validates the probability of transferring the dioxaborolane metathesis of small molecules to dynamic properties of bulk UV-curing materials, which provides valuable guidance for the rational design and fabrication of tunable dynamic photocurable materials.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
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2024
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IF 5.8
Sikun Fang,Wanting Zeng,Long Liu,Yuan Lyu,Fuwei Dong,Lin Wan,Yingjun Liu,Aihua Du
It is challenging to design and synthesize elastomers with both good mechanical performance and high healing efficiency because their mechanisms are mutually exclusive. This work aims to shift the trade-off between them by incorporating dynamic non-covalent bonds via 2-ureido-4[1H]-pyrimidione (UP y ) and dynamic covalent bonds via boronic ester bonds into polyurethane. The quadruple hydrogen bonds between UP y dimers serve as physical crosslinks, improving the overall mechanical properties of the polyurethane, while the boronic esters facilitate its healing. The resulting polyurethane can achieve an ultimate stress of 27.4 MPa and a healing efficiency of 90 %. The effect of healing time on the healing efficiency is modeled and discussed.
研究领域:
材料科学
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化学
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产品关联
DOI
高影响因子
Chemical Science
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2025
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IF 7.4
Yue-Wen Zhou,Ming-Yang Jia,Jun-Lei Yang,Qinlei Liu,Zhenfeng Cai
The influence of electric fields (EFs) on chemical reactions has attracted significant interest due to their ability to modulate reaction rates, pathways, and selectivity. Although EFs have been experimentally demonstrated to facilitate various reactions, clearer evidence for their role in covalent condensation has remained limited. Herein, we provide experimental evidence of electric-field-induced covalent condensation of boronic acids, utilizing the strong EFs at the air-liquid interface of microdroplets to induce the reaction. Microdroplet-based chemistry provides interfacial electric field intensities as high as ca. 109 V/m, offering a robust platform for the systematic investigation of boronate linkage formation and subsequent condensation of boronic acids. Our results confirm the role of EFs in facilitating room-temperature condensation of boronic acids, providing direct insights into the electric-field-induced polymerization process and presenting an experimental approach for investigating these processes in solution.
研究领域:
化学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2024
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IF 8.1
Xing Xie,Dan Yang
Traditional thermally conductive polymer materials exhibit a propensity for damage when applied in dynamic environments, which leads to shortened service life and suboptimal utilization of resources. Herein, polyvinyl alcohol (PVA)-based thermally conductive composites with a self-healing capability are prepared based on dynamic borate ester bonds and hydrogen bonds. Poly(dopamine) functionalized graphene oxide (denoted as PGO) is used as a thermally conductive filler to achieve a high thermal conductivity (TC) of 0.79 W/(m·K) for the PGO/PVA composites, which is 527% of pure PVA (0.15 W/(m·K)). The improved TC of PGO/PVA composites is mainly attributed to the reduction in interface thermal resistance and the construction of heat conduction channels. Additionally, the PGO/PVA composites display a self-healing efficiency higher than 60% at room temperature without external simulation. Furthermore, the as-prepared PGO/PVA composites exhibit excellent mechanical properties, with a tensile strength of 409 kPa and an elongation at break of 479%, respectively. This work provides a promising strategy for fabricating thermally conductive polymer composites, which can be deployed as thermal interface materials for long-term applications.
研究领域:
材料科学
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高分子化学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Wenjun Peng,Hanxin Xia,Jingjun Wu,Zizheng Fang,Xianming Zhang
3D printing, such as fused deposition modeling (FDM), is an advanced 3D shaping technology, employing a layer-by-layer process to construct 3D objects. However, the weak interlayer bonding restricts the performance and functionality of FDM-fabricated parts. Herein, boronate bond exchange is utilized to enhance interlayer mechanical strength and enable modular 4D printing of polylactic acid (PLA). Blending the dynamic system endows PLA with improved interlayer adhesion and welding capabilities. The blended filaments demonstrate excellent printability, with a 150% enhancement in Z-axis interlayer strength, while nearly unchanged along the X-axis. Moreover, this enhanced interlayer bonding facilitates the modular assembly of intricate structures, eliminating the need for traditional 3D-printed supports. Combined with shape memory effects, diverse modular 4D printing possibilities are demonstrated. This strategy highlights the potential of dynamic covalent bonds in 3D printing, enhancing not only material performance but also intelligent designs.
研究领域:
材料科学
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化学工程
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智能制造
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
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2021
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IF 4.43
Yongjie Dong,Siqi Chen,Piao Ning,Ka Lu,Song Ma,Yingjie Wang,Shaoyu Lü
Self-healing hydrogels based on phenylboronate ester bonds are of huge interest in polymer science. However, most of these hydrogels only heal themselves at pH above their pKa (mostly > 8.0), which reduces their potential application in physiologic environments. Here, we showed that a small amount of phosphate produced stable hydrogels, able to support their self-healing at neutral pH. The hydrogel was formed by poly (3-acryloxymethylphenylboronic acid- co -N, N-dimethyl acrylamide) and poly (D-gluconamidoethyl methacrylate- co -N, N-dimethyl acrylamide) in phosphate buffer. Self-healing was observed at pH = 7.0. Intermolecular interactions between phenylboronic acid and phosphate were suggested by rheology, DSC determination and QTAIM calculations. The study represents a new mechanism to promote phenylboronate-based hydrogel formation and self-healing at neutral environment and, more importantly, provides considerable insight into their application in physiologic conditions including sensors and tissue engineering.
研究领域:
材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POLYMER SCIENCE
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2025
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IF 3.6
Sunqi Yu,Siyuan Chen,Tianrui Tong,Yunfeng Yan,Qi Shuai
Micelle-based drug delivery systems (DDS) have emerged as a promising solution to address challenges associated with the in vivo delivery of hydrophobic anticancer chemotherapeutics. However, micelles still encounter issues such as drug pre-leakage and poor stability in physiological conditions. To overcome these limitations, we developed a core-cross-linking strategy utilizing amphiphilic copolymers, mPEG- b- P(AVL- co -LA) (mPPAL), functionalized with phenylboronic acid (PBA), and catechol by CuAAc “click” chemistry, respectively. These copolymers self-assembled into core-cross-linked micelles (CLMs), featuring boronic ester bonds, which were characterized through a series of evaluations. The CLMs exhibited a rational particle size, uniform morphology, low critical micelle concentration (CMC), high PTX loading capacity, and excellent stability. Two promising micelles, CLM1 and CLM3, were identified, and their responsiveness to acidic pH and elevated levels of ROS was confirmed to enable controlled PTX release. The results of MTT assay and hemolytic analysis demonstrated high biocompatibility and potential in vivo application of these selected CLMs. The anticancer efficacy of the selected PTX-CLMs was further validated through MTT assay and 3D tumor spheroid studies. Fluorescence microscopy and flow cytometry demonstrated rapid intracellular uptake of the CLMs. In vivo biodistribution studies demonstrated successful accumulation in the targeted tumor tissue. These findings suggest that the boronic ester-based CLMs developed in this study are a promising nanocarrier for effective PTX delivery. Graphical Phenylboronic acid (PBA) and catechol-modified amphiphilic copolymers (mPPAL@R) were synthesized via ring-opening polymerization followed by CuAAc click chemistry. These copolymers were employed to construct pH- and ROS-dual-responsive micelles with boronic ester core-crosslinking. A series of in vitro and in vivo experiments were conducted to evaluate PTX-loaded micelles, demonstrating their significant potential for effective PTX delivery.
研究领域:
药剂学
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肿瘤学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICAL CHEMISTRY
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2017
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IF 6.32
Huihui Li,Wei Liu,Fengyuan Zhang,Xinyue Zhu,Liqiu Huang,Haixia Zhang
The detection of tyrosinase, a biomarker for melanoma, is of great significance. Herein, a fluorescent tyrosinase probe, with resorufin as the fluorophore and m-tolylboronic acid pinacol ester as the receptor, is proposed. The response relies on the tyrosinase-catalyzed hydroxylation of phenylboronic acid pinacol ester at an adjacent position followed by 1,6-rearrangement elimination to release resorufin. This probe well quantifies tyrosinase in the range from 1 to 100 U mL–1 with a detection limit of 0.5 U mL–1. Importantly, the probe exhibits high selectivity for tyrosinase over other biological substances including reactive oxygen species. In addition, it is successfully applied to the imaging of tyrosinase in cells. This probe provides a novel platform for selective detection of tyrosinase in biosystems.
研究领域:
生物化学
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医学检测
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肿瘤研究
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2019
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IF 8.456
Tao Huang,Xiangzhen Zheng,Ying Pan,Qiaohong Li,Maoxiang Wu
Tributyl borate (TBB) is studied as a protective additive that enhances the interfacial stability of a LiNi0.5Mn1.5O4 cathode/electrolyte at 5 V and 55 °C. Upon addition of 0.5 vol % TBB to the electrolyte (1.0 M LiPF6/EC:EMC:DMC, 1:1:1 wt %), the LiNi0.5Mn1.5O4/Li cell maintains a discharge capacity of 99.4 mAh g–1 at the 50th cycle at 55 °C, compared to that of the electrolyte without an additive, i.e., 36.6 mAh g–1. Furthermore, the TBB-enhanced Li/LiNi0.5Mn1.5O4 cell exhibits a higher discharge capacity of 96 mAh g–1 at 3C, whereas the cell without TBB delivers only 84 mAh g–1. Theoretical calculations and differential capacity (dQ/dV) versus voltage (V) analysis show that TBB improves the electrochemical performance at 5 V and 55 °C by preferentially oxidizing on the LiNi0.5Mn1.5O4 surface. The results obtained from electrochemical impedance spectroscopy, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and inductively coupled plasma-mass spectroscopy measurements reveal that TBB generates a thin, less resistive film on the surface of LiNi0.5Mn1.5O4. This TBB-derived film inhibits the decomposition of the carbonate solvent, while suppressing the dissolution of Ni and Mn ions from LiNi0.5Mn1.5O4.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
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