CHEMISTRY OF MATERIALS
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2025
·
IF 7
Jing Tao,Jing Guo,Fucheng Guan,Qiang Yang,Da Bao,Yihang Zhang,Zheng Li,Xuecui Song
Despite the tremendous potential of superhydrophobic coatings in self-cleaning, anticorrosion, and oil–water separation applications, the inherent trade-off between mechanical durability and dynamic self-repairability remains a critical bottleneck for practical implementation. Herein, we report a supramolecular assembly strategy to controllably fabricate superhydrophobic coatings (i.e., PA66/6-PET@F/Ti) featuring hierarchical micro/nanoarchitectures with embedded molecular memory through hydrophobic interaction-driven dynamic assembly. The coating design exploits molecular-scale memory-reconfiguration effects. The robustness and ultradurability of the coating were verified through oil–water separation, physicochemical damage, and photocatalytic experiments to disrupt the ordered arrangement of the coating’s low-surface-energy molecular chains. Experimental results demonstrate that the PA66/6-PET@F/Ti coating exhibits a water contact angle (WCA) of 171.4°, and the self-repairing efficiencies at 90 °C were 97.5 and 91.4% for the first and sixth times, respectively. In this work, the effect of interfacial reorganization of molecular chains with low surface energy on the self-repairing properties of coatings was investigated by thermodynamically modulating the entropy increase, which provides a useful idea for designing robust interfacial materials.
研究领域:
材料科学
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表面工程
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纳米技术
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高分子科学
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超分子化学
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DOI
高影响因子
JOURNAL OF DAIRY SCIENCE
·
2023
·
IF 3.5
Pin Chen,Ru-Meng Wang,Bao-Cai Xu,Fei-Ran Xu,Ying-Wang Ye,Bao Zhang
ABSTRACT Green hydrophobically modified butyrylated dextrin (BD) was used to modulate casein (CN). The CN/BD complex nanoparticles were formed at different CN-to-BD mass ratios based on a pH-driven technology. The interaction force, stability, and emulsifying properties of complex nanoparticles were investigated. The nanoparticles had a negative charge and a small particle size (160.03, 152.6, 155.9, 206.13, and 231.67 nm) as well as excellent thermal stability and environmental stability (pH 4.5, 5.5, 6.6, 7.5, 8.5, and 9.5; ionic strength, 50, 100, 200, and 500 m M ). Transmission electron microscopy demonstrated the successful preparation of complex nanoparticles and their spherical shape. Fourier transform infrared spectroscopy, fluorescence spectroscopy, and dissociation analysis results showed that the main driving forces of formed CN/BD nanoparticles were hydrogen bonding and hydrophobic interaction. Furthermore, the CN/BD nanoparticles (CN/BD mass ratio, 1:1; weight/weight) exhibited the lowest creaming index, and optical microscopy showed that it has the most evenly dispersed droplets after 7 d of storage, which indicates that the CN/BD nanoparticles had excellent emulsifying properties. Butyrylated dextrin forms complex nanoparticles with CN through hydrogen bonding and hydrophobic interaction to endow CN with superior properties. The results showed that it is possible to use pH-driven technology to form protein–polysaccharide complex nanoparticles, which provides some information on the development of novel food emulsifiers based on protein–polysaccharide nanoparticles. The study provided significant information on the improvement of CN properties and the development of emulsions based on CN.
研究领域:
食品科学
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纳米技术
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胶体化学
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产品关联
DOI
PubMed
高影响因子
POLYMER BULLETIN
·
2025
·Vol. 83
·期 1
·39
·
IF 4
Zhu Zhou,Wu Zi-ying,Wang Hao-yang,Chen Wen-chuan,Zhou Chen,Xiao Wen-tao,Wu Bin
The discharge of heavy metal ions in industrial wastewater poses serious threats to ecosystems and human health. Herein, a novel hydrophobic-associated dual-network hydrogel (PVA/PASC 16 ) was synthesized by integrating a chemically cross-linked network of acrylamide (AM), sodium acryloyl dithiocarbamate (SAD), and cetyl dimethylallyl ammonium chloride (C 16 DMAAC) with a physically cross-linked polyvinyl alcohol (PVA) crystalline network. Structural characterization via FT-IR, SEM, ESEM, and Cryo-SEM confirmed the dual-network architecture and hydrophobic microdomains. Rheological analysis and swelling tests demonstrated that hydrophobic interactions from C 16 DMAAC significantly enhanced elasticity, achieving a 94.8% creep recovery under 5 kPa stress while suppressing swelling. Adsorption performance revealed exceptional capacities for Cu(II) (207.58 mg·g − 1 ), Pb(II) (313.72 mg·g − 1 ), and Mn(II) (154.25 mg·g − 1 ) at pH 5.25 and 500 mg·L − 1 initial metal ion concentration within 180 min. Studies on the adsorption of Cu(II) revealed that the adsorption kinetics followed the pseudo-second-order model (R² > 0.98). Furthermore, experimental data exhibited optimal agreement with the Langmuir isotherm model, further indicating that the adsorption mechanism of the hydrogel towards Cu(II) is dominated by chemisorption. Reusability tests demonstrated > 90% adsorption capacity retention after five regeneration cycles via acid/alkaline treatment, highlighting exceptional recyclability. Mechanistic studies employing SEM-EDS, ESEM, and XPS confirmed that electrostatic attraction, ion exchange, and coordinate chelation via O/S-functional groups were the primary pathways for adsorption. This research presents a reusable adsorbent with high elasticity and adsorption efficiency, presenting a sustainable strategy for the removal of heavy metals in wastewater treatment.
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DOI
高影响因子
Journal of Future Foods
·
2025
·
IF 7.2
Meng Du,Lei Chen,Hongwei Sun,Zeyu Cai,Yixiao Chen,Zia-ud Din,Kun Zhuang,Jie Cai,Wenping Ding
The inherent limited compatibility of starch with other synthetic polymers or natural polymers significantly impedes its utilization efficiency, compromising the mechanical strength and stability of starch-based materials. Introducing emulsifiers to starch molecule to alter its surface properties is an efficient way to promote its compatibility with various matrices. This study examined the effects of sodium sulfonates with varying alkyl chain lengths, specifically sodium dodecyl sulfate (SDS), sodium hexane sulfonate (SHS), and sodium octadecyl sulfate (SOS) , on the structural and surface properties of starch. The underlying interaction mechanisms were investigated through both experimental and simulation methods. Results showed that the short-chain SHS were predisposed and imbedded within starch molecules, effectively performing dual roles as emulsifiers and cross-linking agents while the moderate-chain SDS were likely to act as emulsifiers. However, the long-chain emulsifiers were found to envelop the surfaces of starch aggregates, fostering a degree of cross-linking through hydrophobic interactions, ultimately contributing to an expansion in size. The molecular simulations supported lower energy requirement and higher Van der Waals interaction were adequate to form the SDS/Starch complex system. Once the inclusion complexes were formed, this would change starch's molecular flexibility and complex stability, leading to improved surface properties.
研究领域:
高分子科学
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食品化学
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材料科学
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胶体与界面科学
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计算化学
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产品关联
DOI
高影响因子
Soft Matter
·
2018
·Vol. 15
·期 7
·1551-1561
·
IF 3.709
Meng Zhou,Yuanyuan Xia,Feng Cao,Na Li,Yacine Hemar,Shangwen Tang,Yang Sun
A predicted three-dimensional structure of bovine β-casein was constructed using homology modeling with the aid of MODELLER and I-TASSER programs, with the validity and reliability of the models evaluated according to stereochemical qualities and small angle X-ray scattering. By comparing the results obtained from the two models using the CRYSOL program, an optimal model of the β-casein structure derived from I-TASSER was selected and used in subsequent molecular dynamics (MD) analysis. 300 ns MD simulations of β-casein in water and in the presence of different SDS concentrations at 300 K were performed. The results of the MD simulations indicated that SDS molecules played a dual role in modifying the conformation of β-casein at 300 K. Concentrations of SDS below its CMC (1 mM), at which only the monomer form of SDS was present, induced β-casein to lose its secondary structure by converting helices into random coils; however the conformation of the complex was still comparable with that of native β-casein. In the presence of 10 mM SDS (above its CMC), the helical content of β-casein was increased along with reduced random coils, and the structural rearrangement led to a more compact conformation. The latter change is likely related to the hydrophobic interactions that dominate the binding of the C-terminal region, along with the anchoring of sulfate groups of SDS on the positively charged N-terminal portion via electrostatic attraction. Hydrogen bonding supplemented the SDS-induced stabilization of β-casein. A correlated “necklace and bead” model, in which the micelles nucleate on the protein hydrophobic sites, was proposed for the structure of β-casein–SDS complexes.
研究领域:
生物化学
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分子生物学
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结构生物学
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DOI
PubMed
高影响因子
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2015
·Vol. 17
·期 29
·19401-19409
·
IF 4.493
Feng Quan,Yun Hu,Xingchen Liu,Chaohai Wei
In this study, mesoporous SBA-15 bifunctionalized with cetyl and amino groups (cetyl/amino-SBA-15) was successfully prepared by a post-synthesis grafting method. Detailed characterization by XRD, FT-IR, N2 adsorption–desorption and elemental analysis confirmed that cetyl/amino-SBA-15 still retained a long-range ordered hexagonal mesostructure. Cetyl and aminopropyl groups were simultaneously functionalized on the surface of SBA-15. The adsorption capacity of cetyl/amino-SBA-15 was much higher than the arithmetic sum of those of cetyl-SBA-15 and amino-SBA-15 due to the cooperative effect of hydrogen bonding/electrostatic interaction between 4-nonylphenol (4-NP) and aminopropyl groups and hydrophobic interactions between 4-NP and cetyl groups. The effects of the dosage and mole ratio of cetyl and amino groups on the adsorption properties of cetyl/amino-SBA-15 for 4-NP were also investigated. Cetyl/amino-SBA-15 exhibited excellent adsorption capacity over a wide range of pH values and cetyl/amino-SBA-15(3.2/0.8) displayed the highest adsorption capacity up to 120 mg g−1. Furthermore, cetyl/amino-SBA-15 exhibited high adsorption selectivity for 4-NP against phenol as well as high reusability, showing great potential for applications in wastewater treatment.
研究领域:
环境科学
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化学工程
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材料科学
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产品关联
DOI
PubMed
高影响因子
RSC Advances
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2022
·Vol. 12
·期 34
·21681-21689
·
IF 4.036
Na Cao,Jiayi Liu,Yuecheng Wang,Yingwu Zhou,Meng Zhao,Yujie Ban,Weishen Yang
The adsorption of bio-polyols from dilute aqueous solution is important but faces challenges in the sustainable bio-refinery process. One solution to increase adsorption efficiency is to leverage host–guest interactions between the polyols and materials to grant a preference for polyols. In this study, we synthesized MIL-53 and diverse OH-bonded variants, and studied their adsorption properties towards ethanediol, 1,3-propanediol and glycerol in water. Among the four materials, OH–MIL-53 exhibited fast adsorption kinetics and high capacity, and could be completely regenerated through ethanol elution. Hydrophobic interactions between the alkyl chains of the polyols and the organic linkers of OH–MIL-53 and hydrogen bonding interactions between their OH groups were identified. The synergistic effect of the host–guest interactions is responsible for the unique adsorption performances of OH–MIL-53 towards polyols, and particularly for 1,3-propanediol.
研究领域:
材料科学
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化学工程
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环境科学
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产品关联
DOI
PubMed
高影响因子
Foods
·
2024
·Vol. 13
·期 17
·2756
·
IF 4.7
Linlin He,Yuqian Yan,Gang Zhang,Yanna Zhao,Fa Zhao,Zhuang Ding,Zhengping Wang
Folates, a crucial B-group vitamin, serve as a significant functional food supplement. Nevertheless, considerable obstacles persist in improving folates stability in liquid products. In this study, folic acid (FA) and 5-methyltetrahydrofolate (MTFA), two approved sources of folates, were encapsulated with sodium caseinate (NaCas) to enhance their stability. The protective effect of NaCas on folate molecules was investigated using experimental and computational methods. Meanwhile, the influence of divalent calcium ion (Ca2+) on the properties of the NaCas-MTFA complex was examined to evaluate the potential application of calcium 5-methyltetrahydrofolate (CaMTFA). Fluorescence tests showed both folates had static quenching behavior and bound to NaCas with a binding constant of 104–105M−1. Hydrophobic interactions were crucial in NaCas-FA complex formation, while hydrogen bonding drove NaCas-MTFA binding. The encapsulation of caseinate notably slowed down the degradation of folates under both light and dark conditions. Moreover, the addition of a low concentration of Ca2+did not adversely impact the binding mechanism of the NaCas-MTFA complex or the degradation curve of MTFA. The results of this study could serve as a valuable resource for the utilization of caseinates in incorporating folates, specifically MTFA, in the creation of natural liquid dietary supplements.
研究领域:
食品科学
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营养学
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光谱学
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分子生物学
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产品关联
DOI
PubMed
高影响因子
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2014
·Vol. 407
·期 6
·1721-1734
·
IF 3.578
Yang Fan,Bai Quan,Zhao Kailou,Gao Dong,Tian Lei
A novel dual-function mixed-mode stationary phase based on poly(glycidyl methacrylate- co -ethylene dimethacrylate) microspheres was synthesized by thiol–ene click chemistry and characterized by infrared spectroscopy and elemental analysis. The new system displays both hydrophobic interaction chromatography (HIC) character in a high salt concentration mobile phase, and weak cation exchange (WCX) chromatography character in a low salt concentration mobile phase. It can be used to separate proteins in both ion-exchange chromatography (IEC) mode and HIC mode. The resolution and selectivity of the stationary phase were evaluated in both HIC mode and IEC mode using protein standards. In comparison with the conventional WCX and HIC columns, the results were satisfactory and acceptable. Protein mass and bioactivity recoveries of more than 96 % can be achieved in both HIC mode and IEC mode using this column. The results indicate that the novel dual-function mixed-mode column in many cases can replace the use of two individual WCX and HIC columns. In addition, the effects on protein separation of different ligand structures in the dual-function stationary phase and the pH of the mobile phase used were also investigated in detail. The results show that electrostatic interaction of the ligand with proteins must match the hydrophobicity of the ligand, which is an important factor to prepare the dual-function stationary phase. On the basis of this dual-function mixed-mode chromatography column, a new two-dimensional liquid chromatography technology with a single column system was also developed in this study, and was used to renature and purify recombinant human interferon-γ from inclusion bodies. The mass recovery, purity, and specific bioactivity obtained for the purified recombinant human interferon-γ were 87.2 %, 92.4 %, and 2.8 × 10 7 IU/mg, respectively, in IEC mode, and 83.4 %, 95.2 %, and 4.3 × 10 7 IU/mg, respectively, in HIC mode. The results indicate that the dual-function mixed-mode stationary phase prepared in this study may aid in the development of new two-dimensional liquid chromatography technology with a single column for intensive proteomic studies, and it may also find applications in recombinant protein drug production since it can save column costs and simplify the biotechnological processes.
研究领域:
生物化学
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色谱技术
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蛋白质组学
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产品关联
DOI
PubMed
高影响因子
Advanced Healthcare Materials
·
2023
·Vol. 12
·期 24
·2300669
·
IF 10
Wen Sun,Tingwu Liu,Xieli Zhang,Xu Zhang,Qiuyan Yan,Jinghua Yin,Shifang Luan
Adhesives with strong underwater adhesion performance are urgently needed in diverse areas. However, designing adhesives with long-term stability to diverse materials underwater in a facile way is challenging. Here, inspired by aquatic diatoms, a series of novel biomimetic universal adhesives is reported that shows tunable performance with robust and long-lasting stable underwater adhesion to various substrates, including wet biological tissues. The versatile and robust wet-contact adhesives are pre-polymerized by N -[ tris (hydroxymethyl)methyl]acrylamide, n-butyl acrylate, and methylacrylic acid in dimethyl sulfoxide and spontaneously coacervated in water triggered by solvent exchange. The synergistic interaction between hydrogen bonding and hydrophobic interaction allows the hydrogels with instant and strong adhesion to various substrate surfaces. The slowly formed covalent bonds enhance cohesion and adhesion strength in hours. The spatial and timescale-dependent adhesion mechanism endows the adhesives with strong and long-lasting stable underwater adhesion to be coupled with fault-tolerant convenient surgical operations.
研究领域:
材料科学
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仿生学
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生物医学工程
·
高分子化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2025
·
IF 6.2
Wenjing Li,Ling Xiao,Juan Qi,Yuanyuan Zhang,Zhu Huang,Liangliang Zhu
Inhibition of gut β-glucuronidase (GUS) protects the gastrointestinal tract by reducing local exposure to toxic aglycones from inactive glucuronides. Development of highly safe GUS inhibitors has attracted extensive attentions. The current study demonstrates that natural and synthetic vitamin E (VE) analogues all display potent inhibition toward GUS. dl-α-tocopherol acts as the most potent inhibitor with the Ki value of 0.14 μM, while the other analogues have Ki values below 15.1 μM. Docking analysis indicates that the amino residues in the active pocket of GUS form various hydrophobic interactions with both the chromanol ring and side chain of VE, as well as hydrogen bonds with the hydroxyl group. It is predicted that GUS inhibition readily occurs owing to the daily intake of common plant foods. The current study offers highly safe inhibitors for GUS, as well demonstrates a novel nonantioxidant target for VE providing new insights into the vitamin’s gastrointestinal protection.
研究领域:
生物化学
·
药理学
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分子生物学
·
酶学
·
营养学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF CEREAL SCIENCE
·
2024
·
IF 3.9
Lingfang Zhang,Xiaojie Qian,Binghua Sun,Shuzhen Yang,Xiaoxi Wang,Sen Ma
This study investigated the effects of different wheat flour extraction rate (35–95%) on the protein digestibility of those noodles. And to further elucidate the internal mechanism of above phenomenon, wheat flour with different amounts of wheat bran dietary fiber (WBDF) was produced by adding endogenous WBDF. Results indicated that protein digestibility rose significantly with increasing flour extraction rate, peaking at 91.85% at 80% extraction, before trending downward to 85.71% at 95% extraction. Further, among noodles containing different WBDF content, increasing WBDF content to 6% enhanced the formation of β-sheets, boosting I 755 levels and reducing I 854 /I 830 levels, thus decreasing protein digestibility. As WBDF content rose further, it promoted transition from β-sheets to β-turn, decreasing I 755 and increasing I 854 /I 830 , enhancing protein digestibility slightly. The changes indicated that low level of WBDF induced a more compact protein secondary structure to inhibit protein digestion. Conversely, in noodles with high level of WBDF (>6%), the looser protein secondary structure partially alleviated the inhibitory effect of WBDF on protein digestion, which was caused by part of WBDF penetrating the protein's hydrophobic core. Moreover, the static quenching effect of WBDF on pepsin hydrolysis sites through hydrophobic interaction, especially the tyrosine, was another significant factor inhibiting protein digestion.
研究领域:
食品科学
·
营养学
·
生物化学
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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）