ACS Applied Polymer Materials
·
2024
·
IF 4.4
He Li,Shusen Chen,Yan Song,Haiyun Ding,Ziming Li,Haotian Wu,Fengju Wang,Hao Li,Ziteng Gao,Haizhen Wang
In this paper, three antibioadhering materials with quaternary phosphonium salt-modified polyamidoxime (PAO-QPS) for uranium extraction from seawater were prepared using commercial polyacrylonitrile fiber as the base material by the ion-exchange method. Infrared spectroscopy and thermogravimetric analysis were used to verify the correctness of the structure and to test the thermal stability of the synthetic materials. Scanning electron microscopy was used to analyze the microscopic appearance of the material surface. X-ray photoelectron spectroscopy was used to determine the composition of the surface elements before and after modification of the material and after adsorption of uranium. The uranium adsorption and biological adhesion resistance of the materials were tested. Polyamidoxime-modified hexyltriphenylphosphonium bromide (PAO-C6) was the best adsorption material among the three quaternary phosphonium salt-modified materials with different alkyl chains. The adsorption kinetic curve and adsorption isotherm were drawn according to the uranium adsorption results. The results showed that the adsorption time and temperature were positively correlated to the uranium adsorption capacity of PAO-C6. The maximum uranium adsorption capacity of PAO-C6 could reach 23.6 mg·g–1 in the simulated seawater with a uranium concentration of 3.3 mg·L–1. In addition, the inhibition rates of the material to Escherichia coli and Staphylococcus aureus were 87.60 and 90.59%, respectively, and the inhibition rate against marine bacteria reached 80.61%, indicating that PAO-C6 has good antibioadhering properties. PAO-C6 was expected to be used for uranium extraction from seawater.
研究领域:
材料科学
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环境科学
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海洋科学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry B
·
2022
·Vol. 10
·期 44
·9179-9187
·
IF 7.571
Shuang Xia,Yukun Chen,Wenxin Fu,Jinfeng Tian,Yilin Zhou,Yini Sun,Ruoxuan Cao,Huawei Zou,Mei Liang
Steady adhesion under varying humidity conditions is fundamentally challenging due to the barrier of interfacial water molecules. Here, we demonstrate a humidity-resistant gecko-inspired microfibrillar adhesive fabricated by using a specific phenyl-rich polysiloxane. In contrast with the great decline of macroadhesion with increasing humidity for the typical polydimethylsiloxane (PDMS) microfibrillar adhesives, strong macroadhesion of a microfibrillar adhesive fabricated using synthetic phenyl-rich polysiloxane maintains adhesion well across a wide relative humidity range (1% to 95%). Moreover, the pull-off strength is increased by 500% compared to that of phenyl-absent PDMS microfibrillar adhesives at extremely high humidity. Mechanism analysis demonstrates that the synergistic interplay of strong interfacial hydrophobicity leading to dry contact and bulk energy dissipation through massive aromatic π–π interactions contributes greatly to the reliable and strong humidity macroadhesion. The present results provide a better understanding of humidity macroadhesion as well as application potential for microfibrillar adhesives, which are proven to be reliable skin adhesive patches for long-term health-care that have to be exposed to varying humidity conditions of the skin surface.
研究领域:
生物医学工程
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材料科学
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仿生学
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皮肤给药系统
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粘附材料
✓ 已验证
DOI
高影响因子
BIOMACROMOLECULES
·
2022
·
IF 6.978
Dong Liu,Junmei Tang,Liangliang Shen,Sihao Liu,Siqing Zhu,Shimin Wen,Quankui Lin
Posterior capsular opacification (PCO) is a primary complication after phacoemulsification combined with intraocular lens (IOL) implantation, which is attributed to adhesion, proliferation, and migration of residual lens epithelial cells on IOL. Although surface hydrophilic coating is considered to be a powerful way to inhibit PCO incidence after surgery, it requires complex post-production processes, thus limiting their applicability. In comparison, bulk modification is a stable, effective, and facile IOL synthesis method for PCO prevention. Herein, a new anti-adhesive IOL material was designed and successfully synthesized by radical copolymerization of ethylene glycol phenyl ether methacrylate (EGPEMA) and 2-(2-ethoxyethoxy) ethyl acrylate (EA). The physicochemical properties of P(EGPEMA-co-EA) copolymer materials, including chemical structure, mechanical, thermal, surface, and optical properties, were analyzed by using 1H NMR spectroscopy, FT-IR spectroscopy, tensile test, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), water contact angle measurement, and UV–vis spectroscopy. The elongation at break and the modulus of elasticity of the copolymer were tunable through the change of the composition of monomers. Compared to other components, the tensile results showed that P(EGPEMA-co-EA) materials (70% EGPEMA in mass ratio, F7) are suitable for the preparation of foldable intraocular lens with lower elastic modulus and higher elongation at break. TGA and DSC showed that the material has high thermal stability, and the glass transition temperature of F7 material is 16.1 °C. The water contact angle measurement results showed that the introduction of EA improved the hydrophilicity of the material. The percentage of transmittance of all copolymers at 400–800 nm is above 85%. Then, the biocompatibility of the materials was evaluated by in vitro assay and subcutaneous implantation. Both in vitro results and subcutaneous implantation experiments showed that the designed IOL materials exhibited a good anti-adhesion effect and no cytotoxicity. Finally, phacoemulsification and IOL intraocular implantation were performed, and the in vivo results confirmed the good PCO prevention ability as well as the biocompatibility of the new IOL materials.
研究领域:
眼科
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生物医学材料
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高分子化学
✓ 已验证
DOI
PubMed
高影响因子
Geoenergy Science and Engineering
·
2025
·
IF 4.6
Yingrui Bai,Youming Lang,Ping Wang,Ren Wang,Yang Bai,Jinsheng Sun
Lost circulation in fractured formations is a worldwide problem experienced in drilling engineering characterized by low plugging efficiency and poor plugging effect. Adhesive materials are introduced to solve the problems of poor self-adaptation of the conventional composite bridging plugging systems in fractured formations and repeated lost circulation caused by pressure fluctuations. As a thermoplastic resin with low price and good chemical stability, aging resistance and adhesive properties, ethylene vinyl acetate (EVA) can be filling and adhesion in the form of particles in fracture channels. Therefore, this study evaluated the viscoelasticity, high-temperature stability and glass transition characteristics of EVA particles as well as quantitatively analyzed the degree of melting of EVA based on visualization, thermogravimetric, dynamic thermodynamic and particle size analysis experiments. The optimal formulation of the bridging system with adhesive material was optimized through fracture pressure-bearing plugging experiments and the mechanism of action of the system was revealed. The experimental results reveal that the adhesive EVA particles have good thermal stability (thermally decomposes after 374 °C) and viscoelasticity. A simulation experiment involving plugging a 2-mm fracture using the bridging system with adhesive material reveals that the pressure-bearing capacity is 12 MPa, the cumulative filtration loss is only 50 mL, and the plugging performance is excellent. We inferred that the surface of the adhesive material softened at a specific temperature and possessed strong viscoelasticity, which strengthened the bridging, filling, and twisting of the conventional composite bridging plugging system and increased coherence with the fracture channel surface and increased its stationary capacity. The plugging is synergistic, the plugging zone is strengthened, and the success rate of primary plugging is improved.
研究领域:
石油工程
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材料科学
✓ 已验证
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2025
·
IF 6.3
Lu Chen,Xianglin Guo,Mingquan Wang,Wei Jiang,Sixiang Cai,Xueqing Tang,Zhen Wang
Electrochromic devices based on non-metallic iodine (I 2 ) electrodeposition feature a simple structure, low cost, and high optical contrast but suffer from poor cycling stability due to the low conductivity of solid I 2 and the formation of dead iodine. Herein, 1-methyl-3-propylimidazolium ions (MPI + ) are introduced into an I − -containing water-in-salt electrolyte, enabling the concurrent generation of solid I 2 and liquid MPII 3 under anodic oxidation. The liquid MPII 3 enhances the I 2 adhesion and interfacial contact, providing a self-healing effect that suppresses dead iodine while improving charge transport and reaction kinetics. As a result, the electrochromic device exhibits outstanding overall performance, including a high optical modulation of 69.2 %, fast switching speeds with coloring/bleaching times of 6.9/11.9 s, and excellent cycling durability with optical contrast retention exceeding 100 % after 20,000 cycles. Furthermore, a large-area dual-deposition electrochromic device with an active area of 100 cm 2 was successfully fabricated, demonstrating high modulation and uniform coloration capability. This work provides a new strategy and technical foundation for the design and practical development of high-performance solid-state deposition-type electrochromic devices.
研究领域:
材料科学
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电化学
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功能材料
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纳米科技
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表面科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 31
·期 26
·2101143
·
IF 18.808
Shuang Xia,Yukun Chen,Jinfeng Tian,Jinfeng Shi,Chengzhen Geng,Huawei Zou,Mei Liang,Zhibo Li
Gecko-inspired microfibrillar adhesives have achieved great progress in microstructure design and adhesion improvement over the past two decades. Space applications nowadays show great interest in this material for the characteristics of reversible adhesion and universal van der Waals interactions. However, the impact of harsh environment of space on the performance of microfibrillar adhesives, especially the extreme low temperature, is rarely addressed. Herein, microfibrillar adhesives fabricated by phenyl containing polydimethylsiloxane (p-PDMS) elastomers with superior low-temperature reversible adhesion is proposed. p-PDMS elastomers are synthesized through one-pot anionic ring-opening copolymerization, and the resulting elastomers become non-crystallizable with excellent low-temperature elasticity. Low-temperature adhesion tests demonstrate that the adhesion strength of microfibrillar adhesives fabricated by p-PDMS elastomers can be well maintained to as low as −120 °C. In contrast, the adhesion strength of pure PDMS microfibrillar adhesive reduces more than 50% below its crystallization temperature. The low-temperature cyclic adhesion tests further demonstrate that p-PDMS microfibrillar adhesives exhibit superior reversible adhesion compared to that of PDMS microfibrillar adhesives, owing to the sustainable conformal contact and even distribution of loads over repeated cycles. This study provides a new fabrication strategy for microfibrillar adhesives, and is beneficial for the practical application of microfibrillar adhesives.
研究领域:
高分子材料学
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仿生工程
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低温物理学
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航天器材料
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界面科学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2025
·Vol. 15
·期 40
·33456-33465
·
IF 4.6
Xiuli Pu,Buyun Chen,Qiang Li,Chen Chen,Xinling Wang
Traditional hydrogel adhesives hold tremendous potential in applications of hemostasis, wound closure, and tissue regeneration. However, significant challenges exist concerning the unsatisfactory mechanical properties and indiscriminate adhesion of the hydrogel, which possibly result in unwanted postoperative adhesion of tissues. In this work, a Janus hydrogel was fabricated from naturally-derived aspartic acid, glutamic acid, and dopamine. The hydrogel accomplishes the dual-sided property modulation through the coordination of Fe3+, maintaining high adhesion on one side while eliminating most of the adhesion on the other, efficiently averting unintended adhesion. Remarkably, this hydrogel patch not only attained robust mechanical strength (around 410 kPa) and stability via the formation of a secondary network through coordination bonds, but also exhibited excellent adhesion properties (over 550 J m−2) and repeatable adhesion (less than 20% decreasing after 5 adhesion cycles) originating from catechol surface chemistry and topological entanglement strategies. Moreover, the hydrogel boasts exceptional biocompatibility, making it advantageous for diverse biomedical scenarios.
研究领域:
生物材料学
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组织工程
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再生医学
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生物医学工程
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粘附材料
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高分子科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Yimei Yang,Jing Xie,Junsu Wang,Hongyu Tu,Ping Lu,Kun Yu,Fei Lu,Guangqian Lan,Ruiqi Xie,Rong Yin,Enling Hu,Wentao Lin,Xianglin Lin
Oral ulcers (OU) represent a highly prevalent mucosal disease; however, treatment using existing dressings is often challenging due to insufficient wet adhesion and limited efficacy. In this study, a polyphenol-functionalized silk fibroin (SF) adhesive incorporating a drug delivery platform was developed for the treatment of OU. Silk fibroin (SF) was functionalized with epigallocatechin gallate (EGCG) to form dry granules (termed pwd#ES). Subsequently, drug delivery platforms loaded with dexamethasone (denoted CMC/CS@Ca@Dex) were doped into these granules, resulting in a composite dry granular SF dressing [pwd#ES-(CMC/CS@Ca@Dex)] designed for ulcerated mucosal tissue. The CMC/CS@Ca@Dex platform was prepared by self-assembling chitosan (CS) and carboxymethyl cellulose (CMC) layer-by-layer onto CaCO₃ cores, followed by dexamethasone loading. The resultant composite SF dressing exhibited strong wet tissue adhesion (32.8 kPa), mediated by synergistic interactions within the polyphenol-functionalized SF matrix, alongside excellent reactive oxygen species (ROS) scavenging and bactericidal activity attributed to EGCG. In a mouse model of OU, the pwd#ES-(CMC/CS@Ca@Dex) dressing significantly accelerated healing and promoted faster re-epithelialization. This pwd#ES-(CMC/CS@Ca@Dex) dressing is anticipated to improve the efficiency of OU treatment and inspire the rational design of wet tissue adhesives for the repair of moist tissue defects.
研究领域:
生物材料
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药物递送
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组织工程
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生物医学工程
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纳米技术
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药剂学
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生物聚合物
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粘附材料
·
伤口愈合
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2018
·
IF 9.89
Ziqing Tang,Qiang Chen,Feng Chen,Lin Zhu,Shaoping Lu,Baiping Ren,Yanxian Zhang,Jia Yang,Jie Zheng
Developing functional hybrids of globular proteins and synthetic polymers into multipurpose tough hydrogels remains challenging. Here, we propose a new strategy combining double-network and protein misfolding concepts to create diverse protein–polymer double-network (DN) hydrogels with both high bulk and interfacial toughness. The method integrates an intrinsic heat-induced protein denaturation/aggregation feature and a double-network concept, which produces different bovine serum albumin (BSA)-based DN hydrogels with hybrid physical–chemical cross-linking or fully physical cross-linking to achieve a high modulus of 252–1199 kPa, high strength of 0.24–0.48 MPa, high fracture energy of 3.56–16.88 MJ/m3, high extensibility of 7.7–79.9 mm/mm, fast self-recovery (stiffness/toughness recovery of 94/80% after heat treatment at 80 °C for 30 min), and strong surface adhesion to various nonporous solid surfaces (interfacial toughness of 1176–2827 J/m2). Such tough and adhesive protein–polymer hydrogels have great potential for different applications, such as artificial soft tissues, flexible electronics, and wearable devices.
研究领域:
材料科学
·
高分子化学
·
生物医学工程
·
软物质物理
·
粘附材料
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）