LANGMUIR
·
2024
·
IF 3.7
Yumin Wang,Ting Xu,Lide Xu,Gan Miao,Fangchao Li,Xiao Miao,Jingwei Lu,Zhiqiang Hou,Guina Ren,Xiaotao Zhu
Adhesive hydrogels are considered to be promising interfacial adhesive materials for various applications; however, their adhesive strength is significantly reduced when immersed in liquid environments (water and oil) due to obstruction of the liquid layer or swelling in liquid, and they could not always be reused when the failure of the adhesive performance occurred. Herein, a graphite oxide/poly(vinyl alcohol) (GO/PVA) hydrogel with strong adhesion in air and under liquid environments was developed by rationally regulating the interactions of water and dimethyl sulfoxide (DMSO) in the binary liquid system. The strong interaction between water and DMSO allowed the water layer of the GO/PVA hydrogel on the hydrogel surface to act as a shield to repel oil in air, under water, and even when immersed in oil, and it also endowed the obtained hydrogel with antiswelling property when immersed in water and oil. Importantly, the GO/PVA hydrogel could serve as an advanced adhesive to firmly bond different substrates in air, under water, and under oil, and interestingly, its dry and wet adhesive performance was repeatable and recyclable. This work is expected to be an important addition to the field of adhesive soft materials.
研究领域:
材料科学
·
化学工程
·
粘合材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Fan Yang,Yunlu Chen,Wentao Zhang,Shaochun Gu,Zhenjie Liu,Maohu Chen,Leidan Chen,Feng Chen,Huicong Zhang,Yude Ding,Yanshan Liu,Jinyi Chen,Linhong Wang
Hyaluronic acid-based hydrogels have been broadly used in medical applications due to their remarkable properties such as biocompatibility, biodegradability, super hydroscopicity, non-immunogenic effect, etc. However, the inherent weak and hydrophilic polysaccharide structure of pure hyaluronic acid (HA) hydrogels has limited their potential use in muco-adhesiveness, wound dressing, and 3D printing. In this research, we developed in-situ forming of catechol-modified HA hydrogels with improved mechanical properties involving blue-light curing crosslinking reaction. The effect of catechol structure on the physicochemical properties of HA hydrogels was evaluated by varying the content (0–40 %). The as-synthesized hydrogel demonstrated rapid prototyping, excellent wetting adhesiveness, and good biocompatibility. Furthermore, an optimized hydrogel precursor solution was used as a blue light-cured bio-ink with high efficiency and good precision and successfully prototyped a microstructure that mimicked the human hepatic lobule by using DLP 3D printing method. This catechol-modified HA hydrogel with tunable physicochemical and rapid prototyping properties has excellent potential in biomedical engineering.
研究领域:
生物医学工程
·
材料科学
·
组织工程
·
药物递送
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
·
2021
·
IF 3.189
Wei Li,Lanjuan Wu,Zhengqiao Zhang,Huizhen Ke,Qian Liu,Zhifeng Zhu,Zhenzhen Xu,Anfang Wei,Xuedong Cheng
The objective of this work was to examine the influence of poly (2-acryloylamino-2-methyl-1-propanesulfonic acid) (PAMPS) branches grafted onto starch molecules upon viscosity stability, adhesion and desizability of corn starch for warp sizing. A series of starch- g -PAMPS samples with different grafting ratios were prepared by graft copolymerization of acid-converted starch (ACS) with different amounts of 2-acryloylamino-2-methyl-1-propanesulfonic acid (AMPS), respectively, in an aqueous medium . The influence of the grafted PAMPS branches on the adhesion of starch to cotton and viscose fibers was evaluated by measuring the bonding forces of slightly sized cotton and viscose roving and comparing the adhesion of starch- g -PAMPS samples with that of ACS, according to a legal method (FZ/T 15001–2008). Their influences on viscosity stability and desizability were also evaluated. The desizability was investigated by measuring the time required for breakage of the film in hot water. It was found that starch- g -PAMPS samples were superior to ACS in adhesion to both fibers, viscosity stability and desizability, indicating that the PAMPS branches introduced were able to improve adhesion to the fibers, viscosity stability and desizability of starch. With the rise in grafting ratio, gradually improved bonding forces to both fibers, paste stability and desizability were exhibited. Starch- g -PAMPS showed potential for use as a new starch-based size in the warp sizing of cotton and viscose.
研究领域:
高分子化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
TEXTILE RESEARCH JOURNAL
·
2023
·
IF 2.3
Yanqin Shen,Jinyu Qiao,Hailiang Wu,Yijun Yao
In this work, a series of alkylation starches (St-Cn) with different alkylation degrees was synthesized by introducing alkyl chains (the number of carbon atoms was 3, 8, and 12, respectively) onto starch. The influence of the substitution degree (DS) and length of the alkyl chains on the sizing properties of alkylation starches was studied. Fourier transform infrared spectroscopy and proton nuclear magnetic resonance spectra provided evidence for the linkage of alkyl chains onto the starch structure. Benefiting from the flexibility characteristic of the alkyl chain and the weakening hydrogen bonding to starch structure, St-C8 alkylation starch film with a DS of 0.114 exhibited a high elongation break of 4.64%, which is higher than that of the modified starches reported in most of the literature. Moreover, the alkyl chain could reduce the internal stress of the starch adhesive layer among fibers, which improved the adhesion of alkylation starch to cotton fibers. The St-C12 alkylation starch obtained by the longer alkyl chain weakened the adhesion among fibers due to the strong hydrophobic effect. This work provides a new idea to achieve starch plasticization.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2024
·Vol. 36
·期 15
·2308950
·
IF 27.4
Sensheng Chen,Ge Chen,Yixuan Zhao,Saiyu Bu,Zhaoning Hu,Boyang Mao,Haotian Wu,Junhao Liao,Fangfang Li,Chaofan Zhou,Bingbing Guo,Wenlin Liu,Yaqi Zhu,Qi Lu,Jingyi Hu,Mingpeng Shang,Zhuofeng Shi,Beiming Yu,Xiaodong Zhang,Zhenxin Zhao,Kaicheng Jia,Yanfeng Zhang,Pengzhan Sun,Zhongfan Liu,Li Lin,Xiaomin Wang
The real applications of chemical vapor deposition (CVD)-grown graphene films require the reliable techniques for transferring graphene from growth substrates onto application-specific substrates. The transfer approaches that avoid the use of organic solvents, etchants, and strong bases are compatible with industrial batch processing, in which graphene transfer should be conducted by dry exfoliation and lamination. However, all-dry transfer of graphene remains unachievable owing to the difficulty in precisely controlling interfacial adhesion to enable the crack- and contamination-free transfer. Herein, through controllable crosslinking of transfer medium polymer, the adhesion is successfully tuned between the polymer and graphene for all-dry transfer of graphene wafers. Stronger adhesion enables crack-free peeling of the graphene from growth substrates, while reduced adhesion facilitates the exfoliation of polymer from graphene surface leaving an ultraclean surface. This work provides an industrially compatible approach for transferring 2D materials, key for their future applications, and offers a route for tuning the interfacial adhesion that would allow for the transfer-enabled fabrication of van der Waals heterostructures.
研究领域:
材料科学
·
纳米技术
·
化学工程
✓ 已验证
DOI
高影响因子
ACS Omega
·
2017
·
IF 0
Hailong Fan,Jiahui Wang,Qiuya Zhang,Zhaoxia Jin
Adhesiveness of hydrogels depends on the balance and synergy of their cohesion and adhesion. However, it is a challenge to fabricate catechol-based hydrogels with high adhesiveness because the required condition for cohesion and adhesion of these hydrogels is in conflict with each other: strong cohesion (gelation) requires a weak basic condition, whereas strong adhesion requires an acidic condition. Here, we demonstrated that by utilizing polyphenol supramolecular chemistry, the coexistence of strong cohesion and adhesion can be achieved in a hydrogel via the one-pot method. Poly(dimethyl diallyl ammonium chloride)/tannic acid (PDDA/TA) hydrogel has been studied as a proof of concept. Compared with catechol moieties that covalently grafted on polymer chains, TA can bring high density of pyrogallol/catechol functional groups for polymers via a noncovalent pathway, as well as high acidity in the system. As a result, the cohesion of the hydrogel is enhanced significantly, the highest storage moduli can reach up to ca. 0.15 MPa; besides, the high acidity of the hydrogel prevents pyrogallol/catechol groups from oxidation and guarantees strong adhesion; thus, the hydrogel can adhere to diverse substrates steadily, including tissues, glass, metals, and plastic. Moreover, because of the adjustable adhesiveness via changing the pH, the PDDA/TA hydrogel becomes a unique system with patternable adhesiveness. In addition, the hydrogel has rapid self-healing and high ionic conductivity (∼4.3 S m–1). This study demonstrates that utilizing polyphenol chemistry in the construction of hydrogels opens a new path toward multifunctional hydrogels with improved properties.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
DOI
PEST MANAGEMENT SCIENCE
·
2022
·Vol. 78
·期 10
·4407-4416
·
IF 4.462
Liyin Shi,Weiyao Yan,Li Sun,Chaoqun Hou,Nuo Wei,Zhiyang Chen,Jianguo Feng
Background Developing pesticide-controlled release formulations with foliage adhesion has become the focus of current research in the field of crop protection. In this study, an excellent adhesive nanocapsule loaded with emamectin benzoate (Eb@PDA) was prepared via emulsion interfacial polymerization based on the self-polymerization ability and adhesion properties of polydopamine (PDA). Results The physicochemical properties of the Eb@PDA were characterized by scanning electron microscopy, transmission electron microscopy, particle size statistics, Fourier transform infrared spectroscopy and X-ray diffraction. The Eb@PDA presented a regular spherical shape, with an average particle size of 163.8 nm. Compared with conventional formulations, it had higher pesticide-loading content (34%) and excellent adhesion onto corn leaf. In addition, Eb@PDA showed sustained-release characteristics, facilitating the release of Eb at low pH and high temperature. Eb@PDA could effectively protect Eb against photodegradation and had a longer effective period for controlling Spodoptera frugiperda and Spodoptera exigua . Furthermore, acute toxicity tests showed that the 50% lethal concentration (LC 50 ) was 80.91 and 57.91 mg kg −1 at 7 and 14 days, respectively, indicating a lower toxicity of the Eb@PDA to earthworms. The cells (L02) treated with Eb@PDA showed a higher cell viability but a lower apoptosis rate (only 5.75%), demonstrating the lower cytotoxicity of the Eb@PDA. Conclusion The self-prepared Eb@PDA could be used as a formulation with the advantages of slow release, UV shielding, strong leaf adhesion, superior insecticidal properties, sustained effectiveness and biosafety. It will also facilitate the development of an efficient and safe pesticide delivery system. © 2022 Society of Chemical Industry.
研究领域:
农药科学
·
材料科学
·
植物保护
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2023
·
IF 4.7
Yuling Lü,Ce Wang,Yulong Ma,Tianxu Ye,Limin He
The weak adhesion between oil droplets and bubbles frequently reduces the flotation effectiveness of oil removal. This study focuses on the hydrophobic and oleophilic modification of bubble surfaces by encapsulating light hydrocarbon homologue-condensate to address this issue. The adhesion properties were characterized by the surface properties and interaction barriers of oil droplets and air/ condensate bubbles. The results indicated that condensate bubbles exhibited shorter induction time and faster spreading rate than air bubbles when adhering to oil droplets. The condensate film effectively extracted the oil droplets and completely enveloped the bubble surface. Furthermore, the non-DLVO model best fitted bubble induction time, revealing negative interaction energy barriers that promoted adhesion between condensate bubbles and oil droplets. In summary, coating a condensate film on bubble surfaces enhances the adhesion effect on oil droplets, which research provides valuable theoretical guidance for applying condensate bubble flotation process.
研究领域:
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 18
·9373-9381
·
IF 11.301
Jiajun Xu,Rining Jing,Xiuyan Ren,Guanghui Gao
Breaking through the conventional way of conferring anti-icing ability on hydrogels with addition of organic solvents or inorganic salts, here a novel anti-icing hydrogel with toughness, adhesiveness and high transparency was successfully fabricated by introducing antifreeze protein (AFPS, inspired by fish) into a chemical crosslinking network copolymerized with acrylamide and 2-acrylamide-2-methylpropanesulfonic acid. The hydrogel exhibited surprising stretchability (up to 2400% tensile strain), high transparency (over 90% transmittance) and outstanding reversible adhesive performance bonding to different materials and even human skin. Meanwhile, the inhibition of ice crystal growth based on AFPS molecules also conferred anti-icing ability on the hydrogels, so that the toughness and adhesiveness of the hydrogels remained stable at −10 °C. Additionally, the existence of sulfonic groups also endowed the hydrogels with deformation sensitivity to act as strain or pressure sensors to accurately monitor human motions and even subtle physiological signals. Therefore, the novel anti-icing strategy would provide new insight for a new generation of hydrogel sensors.
研究领域:
材料科学
·
生物医学工程
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2025
·
IF 2.6
Yi-Chen Guo,Xiao-Gang Liao,Qi Wu,Yu-Xuan Hao,Zi-Hao Wang,Wen-Yan Zhang,Yao-Yu Wang
Enhancing the conductivity of silver paste is crucial for achieving high photoelectric conversion efficiency of heterojunction solar cells. In this work, 1-tetradecanol-coated Ag2O was used as a silver precursor, replacing nano-silver powder in the conventional silver paste. Low-temperature sintering (200 °C) was utilized to establish a conductive pathway between flaky and spherical silver powder, resulting in a low-cost, low-temperature cured silver paste. The effect of 1-tetradecanol content on Ag2O was investigated, focusing on the electrical conductivity, silver paste rheological properties and adhesion properties of low-temperature cured silver paste film layers. The results showed that the volume resistivity of the paste containing 1-tetradecanol (10 wt%)-coated Ag2O after sintering at 200 °C for 30 min was 7.44 × 10−5 Ω cm, which was 35% lower than that of pure silver powder paste, indicating a significant enhancement in electrical conductivity. Furthermore, rheological performance tests demonstrated that the incorporation of Ag2O was an effective route for enhancing the thixotropy, recovery, and stability of the paste. Meanwhile, an adhesion experiment demonstrated that silver pastes with introduced Ag2O (≥5 wt%) exhibited a robust bonding to the ITO substrate under low-temperature curing, with an ASTM grade of 5B.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Jiafei Hu,Yan Liu,Chengxiu Yang,Shaowei Wu,Haomiao Wang,Yuhang Qin,Yuchen Yong,Lihui Liu,Xu Li,Shijie Gu,Yueguo Hu,Peisen Li,Jian Huang,Qi Zhang,Mengchun Pan
Long-term access to undersea information is of critical importance for undersea sensing. However, the paramount challenge in marine wearable technology lies in achieving durable and stable adhesion, coupled with biocompatibility, for devices submerged in the saline conditions of the ocean. Here, a self-healing, seawater-resistant hydrogel is reported that exhibits robust adhesion to diverse biotic and abiotic surfaces. Remarkably, the presented hydrogel is augmented with octopus sucker-inspired microstructures, a feature that markedly improves its capability of organism adhesion underwater. The hydrogel exhibits robust mechanical properties in water, with over 20-fold elongation in a fully swollen state, and a mechanical healing efficiency exceeding 90% after healing for 30 min. The hydrogel is applied toward several representative undersea scenes. Specifically, the hydrogels equipped with flexible pressure sensors are reliably affixed to fish and turtles for sensing hydraulic pressure for more than 20 days, while the hydrogels featuring a compact camera are mounted on corals and crabs for constant monitoring of surroundings. Furthermore, the hydrogel is molded into a mesh structure for integrating multiple sensors, functioning as multi-node marine wearable platforms. The underwater hydrogel, with its broad applicability, introduces an approach to real-time undersea monitoring and non-invasive marine life internet construction.
研究领域:
材料科学
·
海洋生物学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Haoyu Wang,Ping Han,Ying Yu,Shaolong Han,Yue Qiao,Yuehan Li,Bin Sun,Zheng Gu
Conductive hydrogels have been extensively investigated and demonstrate promising applications in wearable and flexible sensors. However, their broader implementation in this field is hindered by the insufficient strain sensitivity, susceptibility to mechanical damage with limited self-recovery, and inadequate adhesion to human skin. Herein, we present a multifunctional MXene/TA@CNC electronic hydrogel patch (MTC e-patch) by integrating highly conductive two-dimensional (2D) transition metal carbides (MXene) and tannic acid-coated carboxylated cellulose nanocrystals (TA@CNC) with polyvinyl alcohol and borax. And dynamic three-dimensional (3D) network is formed through synergistic dynamic hydrogen bonding and dynamic borate ester linkages. The incorporation of TA@CNC effectively prevents the oxidation of MXene, thereby extending the operational lifespan of hydrogels. The flexible covalent crosslinked network, combined with the rigidity of TA@CNC, imparts the MTC e-patch with excellent electrical conductivity (1.62 S/m), superior mechanical strength (≈1.35 MPa, 930 %), robust adhesiveness (≈28 kPa), and high self-healing capability (92 %). The rapid (161 ms) and sensitive (Gauge factor = 4.39) sensing performance of the developed wearable sensor enables the precise detection of subtle human motions, such as swallowing, throat vibrations during speech, and pen strokes during writing. Even when damaged, the sensor continues to provide stable signal output, demonstrating significant potential for applications in smart wearables, electronic skins, and human–machine interfaces.
研究领域:
材料科学
·
柔性电子
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）