CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Chengbao liu,Li Cheng,Lanyue Cui,Bei Qian,Rongchang Zeng
Polymeric coatings with long life, strong environmental adaptability and high durability are of great significance for practical applications. This work presents a facial strategy to construct a smart nanocomposite coating with excellent shielding, corrosion self-diagnosing and self-repairing functions by integrating nanocontainers into epoxy resin. The nanocontainers were synthesized through decorating the hydroxyapatite sheets with zeolitic imidazolate frameworks (HA-ZIF), which were employed to encapsulate corrosion probe (Phenanthroline, Phen). With the occurrence of localized corrosion, Phen molecules could be timely released and reacted with the metal ions to form conspicuous red color at damaged sites, achieving real time corrosion diagnosing function. Given the stimulus responsive property of ZIF, the corrosion propagating process can be significantly inhibited by the released benzimidazole. As contrast of the traditional nanocontainers applied in anticorrosion coating, the inhibitors were used directly to synthesis the HA-ZIF nanocontainer rather than subsequent loading, which greatly improved inhibitors content in nanocontainers. Moreover, the impermeability of composite coating has been remarkably enhanced by the presence of HA sheets, ensuring the long-term protective performance. Importantly, the integrating multi functions in one coating is realized in the ingeniously designed nanocontainers. It is envisioned that the facial and feasible strategy provides insights in improving the longevity, functionality and reliability of protective coatings.
研究领域:
材料科学
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腐蚀防护
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2020
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IF 8.758
Xingxing Chen,Qianyun Zhong,Chenhui Cui,Li Ma,Shuang Liu,Qiang Zhang,Youshen Wu,Le An,Yilong Cheng,Shibo Ye,Xiaoming Chen,Zhen Dong,Quan Chen,Yanfeng Zhang
Ensuring material performance reliability and lifetime is crucial for practical operations. Small cracks on the material surface are often detrimental to its safe operation. This study describes the development of a hydrogen bond-rich puncture-resistant polyurethane elastomer with supertoughness. The as-prepared polyurethane transparent films feature high tensile break strength (57.4 MPa) and great toughness (228 MJ m–3). Additionally, a facile, low-cost, crack self-diagnostic approach through photoluminescence using a small luminous pen is reported. The materials efficiently achieved self-healing at 90 °C after the crack formation. The change of fluorescence intensity on the crack can be used to track the self-healing process. Therefore, this work provides a guideline for the material design of supertough, puncture-resistant, transparent, and healable elastomers and a crack self-diagnosis and healing approach.
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
PubMed
高影响因子
APPLIED SURFACE SCIENCE
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2023
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IF 6.7
Can Li,Fei Chang,Fucheng Gao,Yandong Wang,Zhongqi Sun,Li Zhao,Yufei Yang,Haitao Wang,Lun Dong,Xiangrong Zheng,Yanyan Jiang
Diabetic wounds with delayed healing are highly susceptible to microbial infection and this seriously affects the life quality of patients. Thus, the development of novel wound dressings featured with rapid diagnosis, effective bacteria eradication, and satisfying biocompatibility is highly desirable to alleviate this issue yet remains critically challenging. In this work, we designed a multi-component composite film by integrating pH-sensitive purple cabbage anthocyanins (PCA), photothermal agent copper sulfide (CuS) nanoparticles, and broad-spectrum antibiotic gentamicin (Gent) into chitosan (CS) film, described as CS/CuS/Gent/PCA film. The composite film dressings are highly sensitive to the pH environment, which could effectively aid the patient to assess the level of infection. Moreover, in vitro experiments showed that the synergistic contributions from the mild photothermal ability under NIR irradiation to CuS and the photothermal-promoted release of Gent could result in an effective bactericidal effect, with a 95.73 % antibacterial ratio. In vivo test further verified that the film dressing with high biosafety could promote the recovery of infected defective skin of diabetic rats, which could heal approximately 92.05 % of open wounds over a two-week course of treatment. Our work provided a promising strategy for the design of advanced wound dressings with smart sensing and anti-information therapy.
研究领域:
生物材料学
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医学
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药剂学
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产品关联
DOI
高影响因子
Energy Storage Materials
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2025
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IF 20.2
Dejun Lu,Yunchao Hao,Zhiqiao Wang,Jun He,Xiaojiang Huang,Yunxiang Shi,Shuai Gao,Huiqing Zhang,Yue Ma,Feng Xu,Yao Yao
Wearable biomedical devices require materials that simultaneously integrate energy storage and sensing, function under extreme conditions, and enable battery self-diagnosis. To address this, we developed a novel ZnCl₂-loaded poly(acrylic acid)-based composite hydrogel (Zn-PAA-C) serving as both a flexible Zn-ion battery electrolyte and a high-performance strain sensor. Engineered with poly(acrylic acid) N-hydroxysuccinimide ester (PAA-NHS), gelatin, and ethylene glycol, Zn-PAA-C exhibits exceptional ionic conductivity, mechanical resilience, and freeze-resistance (down to -80 °C). As a strain sensor, it achieves a broad sensing range (0–180 % strain), reliable operation (1–7 Hz), and rapid response (57 ms). As a battery electrolyte, it uniquely incorporates self-diagnostic capability, enabling real-time monitoring of battery expansion and dendrite formation for enhanced safety and longevity, and supports stable operation over 12,000 charge-discharge cycles. Zn-PAA-C thus transcends traditional gel electrolyte limitations, establishing a new standard for multifunctional materials in wearable biomedical devices capable of robust, continuous health monitoring under extreme conditions.
研究领域:
材料科学
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生物医学工程
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电化学储能
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柔性电子器件
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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）