MACROMOLECULES
·
2016
·
IF 5.554
Huarong Nie,Cao Zhang,Yuewen Liu,Aihua He
In this paper, Janus hybrid particles with rubber brushes have been first fabricated by successively grafting polybutadiene chains onto polydivinylbenzene (PDVB) side and polyisoprene chains onto SiO2 side in the case of SiO2@PDVB Janus particles as the template. The weight grafting ratios (Gr) of polybutadiene (PBd) and polyisoprene (PI) brushes were determined as 19.4 and 24.8 wt %, respectively. Such Janus hybrid particles contribute to not only the retardation of phase separation but also the kinetically trapped bicontinuous phase morphology in rubber blends. The interface jamming of these Janus particles supports their promising applications as compatibilizers in polymer blends.
研究领域:
材料科学
·
高分子化学
✓ 已验证
DOI
高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2020
·
IF 7.864
Jie Mao,Xiaoqiang An,Zhenao Gu,Jing Zhou,Huijuan Liu,Jiuhui Qu
Exploring photoactive biotic–abiotic conjugations is of great importance for a variety of applications, but it remains difficult to probe the interfacial transfer of photoinduced charge carriers. In this work, Kelvin probe force microscopy, together with fluorescence imaging technique, were used to visually observe the spatial distribution and interfacial behavior of photocarriers in Microcystis aeruginosa/TiO2 hybrids. Experimental investigations suggested that photosynthetic microalgae cells were prone to trap photoholes from TiO2 photocatalysts. Oxygen vacancy defects in semiconductor exhibited significant impact on the charge migration, as the surface photovoltage of hydrogenated TiO2/microalgae hybrid was much higher than the pristine system. Profiting from the bioenhanced charge separation, biotic–abiotic architecture presented remarkably increased activity for photocatalytic inactivation of microalgae microorganisms. This work not only highlights the visual techniques for understanding the charge transfer around biotic–abiotic interface, but also provides a bioenhanced conjugation for the photocatalytic elimination of microorganisms in water treatment applications.
研究领域:
环境科学
·
材料科学
·
微生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2016
·Vol. 22
·期 18
·6340-6344
·
IF 5.771
Tongtong Tian,Qiongzheng Hu,Yi Wang,Yanan Gao,Li Yu
Graphical Reversible photoresponsive alignment of liquid crystals was found upon UV/Vis light irradiation, and persistent stability of liquid crystals at fluid interfaces was obtained by using ionic liquids. This work demonstrates a noninvasive approach to control alignment of liquid crystals persistently and reversibly at fluid interfaces by using a photoresponsive azobenzene-based surfactant dissolved in an ionic liquid (IL), ethylammonium nitrate (EAN). As the first report on the orientational behavior of LCs at the IL/LC interface, our study also expands current understanding of alignment control of LCs at the aqueous/LC interface by adding electrolytes into aqueous solutions. The threshold concentration for switching the optical responses of LCs can be changed just by simply manipulating the ratio of EAN to H 2 O. This work will inspire fundamental studies and novel applications of using the LC-based imaging technique to investigate various chemical and biological events in ILs.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Yonggan Yan,Yeyu Zhao,Luxing Wei,Limin Zhang,Jiuyu Cui,Xiaoyong Qiu,Jun Huang
Hydrogel friction exhibits dynamical instability under an unstable load force, and comparatively less effort has been devoted to understanding the load-dependent behavior of hydrogel friction. In this work, the load-dependent behavior of hydrogel friction was observed, and the underlying mechanism was investigated using a glass substrate rotating against polyacrylamide-based hydrogels. As the load force (Fn) increases, the friction coefficients (μ) for hydrogels exhibit an initial rapid decrease followed by a gradual increase. In the μ-decrease regime, the dramatic decrease in μ can primarily be attributed to the deformation and desorption of polymer chains from the substrate surface under shearing. In the μ-increase regime, the μ-increase rate is determined by the hydrogel network and charge behavior at the gel–substrate interface. An underneath load-dependent mechanism is proposed to explain the unique friction behavior of hydrogels. During the whole process, increasing the load force can result in an increase in viscosity (η) and a decrease in thickness (h) of the solution at the gel–substrate interface, further leading to a gradual increase in μ. In the μ-decrease regime, the terminal polymer chains adjacent to the substrate surface play dominant roles, and the desorption of the polymer chains from the substrate surface can lead to a sharp decrease in μ. In the μ-increase regime, h and η of the solution at the interface play dominant roles, therefore leading to a gradual increase in μ. Overall, this work provides fundamental insights into understanding hydrogel friction and facilitates the development of water-based lubricants in biomedical applications.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2021
·
IF 5.302
Xinyi Gui,Mingfen Zhang,Puhao Xu,Guiwu Liu,Qinhan Guo,Xiangzhao Zhang,Haining Meng,Guanjun Qiao
Reactive air brazing of Si 3 N 4 ceramic was successfully achieved by using Ag-CuO filler metal. The effects of CuO content on the wettability of Ag-CuO/Si 3 N 4 system and the shear strength of Si 3 N 4 /Si 3 N 4 joint were investigated, and meanwhile the interfacial behavior was analyzed and discussed. Moreover, the work of adhesion, interfacial energy, and electronic properties of Ag/Si 3 N 4 , Ag/CuO and Ag/SiO 2 interfaces were evaluated by first-principles calculations. The Ag-CuO/Si 3 N 4 system transforms from no-wetting into wetting due to the oxidation of Si 3 N 4 substrate and the formation of SiO 2 layer on the substrate surface. The maximum average joint shear strength of over 50 MPa is obtained as the CuO content is 8 at.%. Compared with the Ag(111)/Si 3 N 4 (0001) interface, the Ag(110)/CuO(001) and Ag(110)/SiO 2 (001) interfaces show stronger interfacial bonding due to the formation of Ag-O ionic bond, indicating that the addition of CuO and the formation of SiO 2 contribute to the enhancement of interfacial bonding.
研究领域:
材料科学
·
计算化学
✓ 已验证
产品关联
DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2025
·
IF 12.4
Longwei Chen,Chi Zhang,Xi Yu,Lixiao Fu,Xiaozhi Tang,Xiao Feng
Native quinoa protein has weak processability. Fibrillation can vary the structure and foaming properties of proteins. Quinoa 2S albumin also has the potential to be an interface active substance. In this study, quinoa protein amyloid-like fibrils (QPF) and 2S albumin were blended to stabilize foams for the first time, and their interfacial behavior, foaming properties and the microstructure of foams were analyzed. The absolute value of zeta potential and surface tension of quinoa protein isolates (QPI) decreased after fibrillation, which improved the foam capacity and stability significantly. When QPF were further blended with 2S albumin at a ratio of 1:1, foam capacity and foam stability reached the highest values of 183.33% and 86.38%, respectively. The adsorption of QPF at the air-water interface along with 2S albumin’s filling in the interfacial voids may strengthen the protein interfacial network and their foaming properties. Meanwhile, our study revealed that both the viscosity of the liquid phase as well as the interfacial properties of the protein dispersion influenced the foam capacity and foam stability of QPF/2S albumin. Furthermore, foams generated from QPF/2S albumin were applied to prepare coffee latte art and chiffon cakes. The cakes using foams generated from QPF/2S albumin to fully replace egg white exhibited a fluffy, porous, and stable structure. To conclude, the fibrillated quinoa protein and 2S albumin complex showed the potential to be an innovative plant-based ingredient to generate foams and applied in food processing industry, which will contribute to the food sustainability.
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2019
·
IF 7.015
Ying Dong,Jing Li,Stig Pedersen-Bjergaard,Chuixiu Huang
A membrane as a selective barrier of mass transfer is of great importance for applications in analysis, environment, energy, and biology. Unidirectional solute transfer that would improve membrane process flow is a challenge. Here, macroscopic extreme wettability of membranes controlling microscopic solute transfer is presented. A Janus membrane is prepared by integrating underoil superhydrophobic (UOSH) and underwater superoleophobic (UWSO) surfaces. Without or with electric field, solutes pass through the Janus membrane from the UOSH side to the UWSO side, but are impeded from penetrating in the reverse direction. The UWSO surface has a high affinity toward solutes in water compared to the UOSH surface at their interface. The composite membrane realizes unidirectional solute transfer, which can be considered as a solute transfer diode. This study may promote the understanding of the correlation between macroscopic and microscopic interfacial behaviors and facilitate the design of interfacial materials for controllable solute transfer and separation.
研究领域:
材料科学
·
化学工程
·
生物学
✓ 已验证
DOI
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2025
·
IF 8
Xinna Hu,Tao Ma,Haibo Pan,Shiguo Chen,Donghong Liu
Metal-phenolic networks (MPNs) combine the specific functionalities of metal ions with the high affinity of phenolic compounds, making them promising candidates for food emulsion engineering. Current research has primarily focused on using MPNs to modify exogenous stabilizers for enhanced emulsion stabilization, while the emulsifying properties and direct interfacial behavior of MPNs themselves have not been sufficiently elucidated. We employed a stepwise interfacial assembly strategy for MPNs-based emulsion stabilization: initial emulsion formation using tannic acid (TA), a common natural polyphenol, followed by in-situ formation of MPNs through metal coordination (Fe III , Cu II , Al III , and Zn II ). The changes of the C O group in the FT-IR and XPS spectra confirmed the charge migration from TA to metal ions and the formation of coordination bonds, demonstrating the successful formation of MPNs. A higher TA concentration (2.0 %) is conducive to forming larger MPNs structures, with the corresponding TA 2.0 /Fe-MPNs stabilized emulsions exhibited the best stability (from 231.30 nm to 275.54 nm after 21-day storage). The MPNs formed by TA and four selected metal ions were all successfully localized at the interface for emulsion stabilization, with superior stability during the 21-day storage period. Comparing MPNs constructed with different metal ions, TA/Zn-MPNs could form the densest interfacial adsorption layer up to 384.74 ng/cm 2 , approximately 2.33 times than that of TA/Fe-MPNs, suggesting their superior potential as effective emulsion stabilizers. This study provides foundational insights into the interfacial behavior and stabilization mechanisms of MPNs stabilized emulsions, offering guidance for the design of multifunctional food emulsion systems and expanding the application of MPNs in food industry.
研究领域:
食品科学
·
材料化学
·
界面化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Yuzheng Jiang,Xiaoqian Jiang,Liya Zhang,Aixin Song,Hongguo Liu,Dejun Sun
Particle-stabilized foams have been becoming the focus on foaming field because of their excellent stability due to the high stiffness of interface membrane. However, the modification of particle surfaces to reach an appropriate wettability needs complicated process, resulting in accompanied inconvenient foaming-defoaming regulation. In this work, we reported a series of foams stabilized by insoluble particles generated from fatty acid anions with metal ions. Different hydrocarbon chains endowed the formed particles diverse wettability and different aggregation behaviors at the gas–liquid interface, e.g., different foamability and the formation of the “dry water”. The foams exhibited ultra-stable properties and were responsive to environmental acidity, thus possessing a smart foaming-defoaming transition tuned by pH. The combination ability of fatty acid anions with metal ions changed with the chain-length and the nature of metal ions, leading to a choice for the extraction or separation of some metal ions in a fast and simple way. This new aggregation behavior of fatty acid salts can be explored to expand the practical applications.
研究领域:
化学工程
·
材料科学
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 56
·51068-51077
·
IF 3.289
Junhao Huang,Jiacheng Li,Yuhong Feng,Fei Xiang,Rui Wang,Jianbo Wu,HuiQiong Yan,Kai Chen,Qingfeng Zhou,Yanfeng Liu
The interaction of cholesteryl-grafted sodium alginate derivative (CSAD) and decyl-β-D-glucopyranoside (DGP) in solution was studied through the surface tension method, fluorescence spectroscopy, electron paramagnetic resonance (EPR), and dynamic light scattering. Results showed that DGP and CSAD exhibit competitive adsorption behaviour at the water–gas interface and that this competitive behaviour can be intensified by NaCl. EPR revealed that the cholesterol groups of CSAD participate in the formation of micellar structures. The steric effect of the cholesterol groups reduces the microviscosity of the micellar structure, but high-concentration NaCl can weaken the polarity and increase the microviscosity of the formed micellar structure. In addition, at a high DGP concentration, high-concentration NaCl can facilitate DGP precipitation; this condition causes abnormal phenomena of surface tension, fluorescence spectroscopy, and EPR. For the emulsion system, analysis of particle size and rheology indicated that DGP and CSAD form a network structure between oil and water interfaces through interaction and thus enhance the non-Newtonian fluid properties of the emulsion. Owing to the competitive adsorption between CSAD and DGP at the oil–water interface, DGP gradually replaces CSAD with the increase in DGP concentration. With a further increase in DGP concentration, the stable steric effect of polymers between oil drops may disappear, and oil drops may aggregate mutually.
研究领域:
生物化学
·
表面化学
·
胶体科学
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
·
2020
·Vol. 56
·期 2
·999-1012
·
IF 2.773
Xiuyun Guo,Yawei Zhang,Muneer Ahmed Jamali,Zengqi Peng
Summary The present work examined the impact of L-Arginine (Arg) on the emulsifying properties, interfacial behaviour and conformational characteristics of myofibrillar proteins (MPs) at high (0.6 m ) and low (0.15 m ) salt concentration to maintain good emulsifying properties of MPs at low salt concentration. The data indicated that Arg increased the emulsifying activity index/emulsion stability index (EAI/ESI) and decreased the CI and droplet size of emulsions regardless of salt concentration. Raman spectra revealed that the α-helix content decreased from 60.30% to 51.26% at high salt concentration, and from 60.20% to 54.82% at low salt concentration in the presence of Arg. In addition, MPs treated with Arg exhibited a higher interfacial pressure and more rapidly diffusion to the oil surface. Meanwhile, Arg increased the interfacial protein loading. The results demonstrated that Arg caused the unfolding of MPs, promoting the adsorption of proteins and decreasing the interfacial tension, ultimately improving the stability of emulsions at low salt concentration.
研究领域:
食品科学
·
生物化学
✓ 已验证
DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2019
·
IF 5.839
Fuchao Zhan,Jiangnan Hu,Chen He,Jie Sun,Jing Li,Bin Li
The impact of gallic acid (GA) treatment on the adsorption behavior at the air/water interface and foam properties of sodium caseinate (SC) was investigated. The surface hydrophobicity and negative charge of SC were significantly decreased in bulk solution after interacting with GA. The combination between SC and GA was further confirmed by Fourier transform infrared spectrometer. Compared with SC, the foam stabilized by SC/GA complex (mass ratio of 1:1) showed excellent long-term stability. Moreover, the studies of air/water interfacial behavior demonstrated that the combination slightly decreased the interfacial activity of SC, but considerably increased its interfacial viscoelasticity, suggesting more stable of the air/water interface stabilized by SC/GA complex. Finally, the result of Lissajous plots analysis shows that the increase of GA content lead to the strain hardening occurs in the interface during compression and extension. This also proves that the addition of GA could improve the foam stability of the system.
研究领域:
食品科学
·
界面化学
·
胶体科学
✓ 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）