Surfaces and Interfaces
·
2024
·
IF 5.7
Desheng Sha,Xiaowei Zhu,Yurong Sun,Tong Lu,Gang Yang,Matthew D. Shawkey,Guoqiang Chen,Xiangrong Wang,Yichen Li,Tieling Xing
Structural coloration holds significant promise for achieving ecological coloring of textiles. Caffeic acid, a natural plant polyphenol characterized by its cost-effectiveness, environmental friendliness, and non-toxic properties, has been identified as a key player in this context. It is found that caffeic acid can generate a polycaffeic acid (PCfA) nanofilm at the gas-liquid interface under certain conditions. In this work, caffeic acid was utilized to create thin film nanostructures by self-polymerization for the structural coloration of cotton fabrics, where the hue of the structural colors can be adjusted by polymerization time. Additionally, the incorporation of polyvinyl alcohol (PVA) into the system enhances the rubbing and washing fastness of the resultant structural colored fabric. The morphology of the structural color fabric was investigated by scanning electron microscopy (SEM), and the thickness of the films corresponding to the different colors were determined. This innovative approach presents a novel methodology for the development of robust structural color films.
研究领域:
材料科学
·
纺织工程
·
环境科学
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产品关联
DOI
高影响因子
CHEMOSPHERE
·
2022
·
IF 8.943
Shunyao Li,Qingzhu Liu,Jie Liu,Kai Sun,Wei Yang,Youbin Si,Yucheng Li,Yanzheng Gao
Bisphenol A (BPA) is regarded as an endocrine disruptor associated with negative health effects in animals and humans. Laccase from white-rot fungus can enable BPA oxidation and auto-polymerization to circumvent its biotoxicity, but the work concerning the effect mechanisms of divalent and trivalent metal ions (MIs) on BPA polyreaction have rarely been reported. Herein, Trametes versicolor laccase-started BPA conversion within 1 h followed pseudo-first order kinetics, and the rate constant ( k prcs ) and half-life were respectively 0.61 h −1 and 1.14 h. The presence of Ca 2+ , Mg 2+ , Cu 2+ , Pb 2+ , Cd 2+ , Zn 2+ and Al 3+ exhibited insignificant impact on BPA removal, whereas Fe 2+ , Fe 3+ and Mn 2+ had a strong inhibiting effect. Compared with MI-free, the k prcs values of BPA respectively lowered 34.4%, 44.3% and 98.4% in the presence of Fe 2+ , Fe 3+ and Mn 2+ . Enzymatic activity and differential absorption spectrum disclosed that the inhibitory actions were accomplished by two different mechanisms. One is Fe 2+ was preferentially oxidized into Fe 3+ that restrained laccase activity at the initial stage of reaction, and subsequently, the formed Fe 3+ complex bound with laccase T1-Cu site and thus impeded the single-electron transfer system. The other is Mn 2+ was instantly oxidized by laccase to generate Mn 3+ -citrate complex, which completely consumed the dissolved O 2 in solution and consequently terminated BPA removal. Considering environmental bioremediation, T. versicolor laccase-enabled auto-polymerization is a simple and convenient candidate to eliminate BPA in enzymatic wastewater treatment , however the effects of Fe 2+ /Fe 3+ and Mn 2+ on BPA decontamination should be cautiously assessed.
研究领域:
环境科学
·
生物化学
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产品关联
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Dan Wang,Yuanmin Gong,Meiting Yan,Jiaqi Chen,Xueping Tao,Yang Zhou,Yan Ma,Li Rao,Panpan Chen,Qifeng Fu
Carbon dots (CDs) hold great potential for chromatographic separations. However, their application in chromatographic stationary phases has been limited by two major synthetic challenges: (1) insufficient control over surface chemoselectivity caused by impurity co-adsorption, and (2) structural heterogeneity arising from uncontrolled solvothermal byproducts. To address these limitations, we developed a self-polymerization-driven strategy to synthesize high-purity hydrophobic CDs from 8-amino-2-naphthol (8N2OH) and 2,3-dihydroxynaphthalene (DHN). These CDs were incorporated into organic polymer monoliths via in situ copolymerization, yielding novel 8N2OH-CDs and DHN-CDs hybrid monolithic stationary phases for reversed-phase capillary liquid chromatography. The synthesized CDs were thoroughly characterized, with high purity confirmed by proton nuclear magnetic resonance. The resulting monolithic columns exhibited high permeability and uniformity, as demonstrated by field emission scanning electron microscopy, attributed to the excellent dispersion of the CDs. The chromatographic performance was evaluated using nine types of neutral, alkaline, and acidic compounds, as well as Tanaka standard test mixtures. Compared to unmodified columns, the CD-modified monoliths showed significantly enhanced retention strength and selectivity, supported by Tanaka tests revealing multifactorial retention mechanisms. This work demonstrates the potential of high-purity hydrophobic CDs as versatile modifiers for high-performance chromatographic stationary phases.
研究领域:
分析化学
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材料科学
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产品关联
DOI
高影响因子
Journal of Experimental Nanoscience
·
2020
·
IF 2.169
Xinghui Gong,Tong Wang,Zhendong Zhang,Xiao Wei
In this article, we report a simple, effective, sensitive, non-toxic and environmentally friendly method for the detection of dopamine (DA). This method utilises the property of the self-polymerization of dopamine under alkaline conditions, and gets the concentration of dopamine by measuring the fluorescence intensity of polydopamine (PDA) nanoparticles. And this method only uses NaHCO3 to start the polymerization process, so that the detection experiment becomes simple and inexpensive. The fluorescence intensities of the mixed solution produced at different reaction times and different concentrations were studied. Finally, a good linear relationship was obtained in the range of 1.0-400 μM with a correlation coefficient of 0.9946 and a detection limit of 0.3 μM. The method has high selectivity and important application value for detecting dopamine-related diseases.
研究领域:
生物化学
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医学诊断
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环境科学
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2020
·
IF 4.3
Yi Cui,Dongao Zhang,Kelin Shen,Siqing Nie,Meiying Liu,Hongye Huang,Fengjie Deng,Naigen Zhou,Xiaoyong Zhang,Yen Wei
MXene has emerged as one of the most interest two-dimensional layered materials that has been extensively explored for various applications. In this work, a novel biomimetic method has been developed for the first time to fabricate Ti 3 C 2 MXene based magnetic Fe 3 O 4 composites that relied on the self-polymerization of dopamine and subsequent mild temperature pyrolysis. We demonstrated that many organic dyes could be rapidly degraded by the MXene-MNPs composites through Fenton reaction with extremely high efficiency. The degradation efficiency could be greater than 97 % under the optimized experimental conditions. Moreover, the catalysts displayed a good recyclable property after five continuous cycles. Electron paramagnetic resonance analysis and quenching results indicated that both OH and O 2 − were the reactive species and involved in the degradation process. Owing to the universality and mild reaction conditions of mussel-inspired biomimetic method, many other multifunctional composites with great research interest could also be fabricated. We also believe that this work will provide some new insights for fabrication of highly efficient catalysts for advanced oxidation processes and exploring the critical roles of polydopamine in advanced oxidation procedures.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2015
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IF 5.056
Manquan Fang,Haotian Zhang,Jinxun Chen,Tao Wang,Jie Liu,Xiang Li,Jiding Li,Xingzhong Cao
Bio-inspired polydopamine has been established as a facile and versatile surface modification agent in recent years, many applications have been found such as tailoring the wettability of membrane surfaces, constructing antifouling or antimicrobial surface and serving as a platform for further modifications. To our knowledge, these applications were almost all aimed at liquid systems. For gas separations, however, polydopamine (PDA) was rarely investigated and exploited in literature. In this work, we report a facile method to fabricate ultrathin reverse-selective gas separation membranes (bigger molecules permeate more) via self-polymerization and adhesion of polydopamine onto a thin PDMS interlayer (spin-coated on a porous substrate). The as-prepared hierarchical structured membranes (PDA@PDMS) were used to selectively collect hydrocarbons from nitrogen (propylene/nitrogen as a model gas pair) with considerably enhanced separation selectivity and high gas permeance. Evidence supported that in two ways polydopamine skin layer favorably promoted the overall separation performance. Firstly, polydopamine exhibits much better affinity with propylene than that with nitrogen as indicated by gas sorption test. Secondly, owing to the excellent adhesion property and the dense structure of polydopamine, the in-situ polymerized polydopamine contributes to reducing the overall membrane thickness as well as minimizing the possible microstructural defects. Furthermore, polydopamine provides abundant functional groups for further design of membrane surface chemistry, which we believe would have good potential in other possible gas applications ( e.g., carbon capture, olefin/paraffin).
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
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2014
·Vol. 161
·期 14
·B312
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IF 2.859
Lu Li,Lingling Yang,Ying Teng,Min Zhong,Xiaojing Lu,Xianwen Kan
An imprinted polymer layer was easily modified on the Au electrode surface by spontaneous oxidative polymerization of dopamine in the presence of theophylline to fabricate a novel imprinted electrochemical sensor. The results of scanning electron microscopy and cyclic voltammetry measurements demonstrated the successfully preparation of the imprinted sensor. The effects of ratio between theophylline and dopamine, polymerization pH and time were optimized. The prepared sensor exhibited specific adsorption, selective recognition, and sensitive detection capacities toward theophylline. The linear response to theophylline ranged from 2.0 × 10−7-1.6 × 10−4 mol L−1 with a detection limit of 1.0 × 10−7 mol L−1. Moreover, the sensor could be applied in the detection of theophylline in real samples with satisfactory results. It can be reasonably expected that this simple, novel, and efficient strategy for imprinted sensor preparation based on dopamine self-polymerization provides a promising platform for other molecule recognition and detection.
研究领域:
分析化学
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生物医学工程
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材料科学
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DOI
高影响因子
CORROSION SCIENCE
·
2017
·
IF 5.245
Chunmin Wang,Jun Shen,Fuxing Xie,Bin Duan,Xiong Xie
Dopamine (DA), with strong adhesion to metal substrate via self-polymerization reaction, was introduced as a versatile template layer for subsequent polyether imide (PEI) deposition to confer a highly robust coating on AZ31 magnesium alloy . The complicated corrosion behaviour of the coating was disclosed and investigated by employing electrochemical impedance spectroscopy (EIS) coupled with equivalent electrical circuits (EECs) analysis. The results showed that the hybrid PEI/PDA coating exhibited evidently higher retardation performance (up to 35 days) after immersing in 3.5 wt.% NaCl solution compared to PDA or PEI coated Mg.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry B
·
2020
·Vol. 8
·期 36
·8232-8241
·
IF 5.344
Min Liang,Chunpeng He,Jidong Dai,Pengfei Ren,Yifu Fu,Faming Wang,Xin Ge,Tianzhu Zhang,Zuhong Lu
Mussel-inspired catechol-based strategy has been widely used in the development of underwater adhesives. Nonetheless, the properties of the adhesives were still severely limited under harsh environments. A facile approach was proposed herein to prepare a double network hydrogel adhesive with low swelling rate and high strength in seawater, where the first network was polyacrylamide (PAM) and the second network was alginate (Alg). Meanwhile, polydopamine (PDA) nanoparticles, which were formed through self-polymerization as adhesion anchoring sites, distributed evenly throughout the double network hydrogel and effectively enhanced the adhesion capability of the hydrogel. The properties of the resulting hydrogel have been fully characterized. The optimal adhesion strength of the hydrogel adhesive in seawater was as high as 146.84 ± 7.78 kPa. Furthermore, the hydrogel also has excellent ability to promote the growth of zooxanthellae. Our studies provide useful insights into the rational design of underwater adhesives with high performances even beyond nature.
研究领域:
材料科学
·
海洋生物学
·
生物材料
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产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2017
·
IF 3.387
Qiang Huang,Meiying Liu,Junyu Chen,Qing Wan,Jianwen Tian,Long Huang,Ruming Jiang,Yuanqing Wen,Xiaoyong Zhang,Yen Wei
Molybdenum disulfide (MoS 2 ) is a novel type of two-dimensional nanomaterial, which has attracted great research attention for its excellent physicochemical properties and possible applications. In this work, we prepared a novel MoS 2 composite (MoS 2 -PDOPA) through the self-polymerization of levodopa (DOPA) on the surface of MoS 2 under a weak alkaline solution. The obtained samples, including pure MoS 2 and MoS 2 -PDOPA composite were characterized by energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR), thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS) analyses. The potential environmental applications of MoS 2 -PDOPA were evaluated by using MoS 2 -PDOPA as adsorbent to remove methylene blue (MB) from aqueous solution. Batch experiments were carried out to investigate the effect of various operational parameters such as contact time, initial MB concentration, solution pH and temperature on the adsorption of MB by MoS 2 -PDOPA. According to the adsorption kinetics, isotherms and thermodynamics analysis, the MB adsorption onto MoS 2 -PDOPA follows the intraparticle diffusion model and Langmuir isotherm model, and the MB adsorption process is spontaneous and endothermic. The maximum adsorption capacity of MoS 2 -PDOPA is calculated to be 244.03 mg/g at 298 K. As compared with unmodified MoS 2 , the adsorption capacity of MoS 2 -PDOPA is obviously improved. Taken together, we developed a facile method to prepare MoS 2 -PDOPA composites based on mussel inspired chemistry. The resultant composites could be utilized as efficient adsorbents with great potential for environmental adsorption applications.
研究领域:
材料科学
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环境科学
·
化学工程
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产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2021
·
IF 4.098
Mengyu Chen,Jingdan Zhang,Jianyu Chang,Huiya Li,Yongqing Zhai,Zhenguang Wang
Butyrylcholinesterase (BChE) is an important clinical diagnosing index for liver dysfunction and organophosphate toxicity. However, the current assays for BChE activity are suffering from the relative poor detection sensitivity. In this work, an ultrasensitive fluorescence assay for BChE activity was developed based on the self-polymerization modulated fluorescence of sulfur quantum dots (S-dots). The luminescence of S-dots can be quenched by the self-polymerized dopamine. The hydrolysate of substrates, thiocholine, under the catalysis of BChE can reduce dopamine, which results in the inhibition of self-polymerization and the fluorescence recovery of S-dots. BChE can be quantitatively detected by recording the recovered fluorescence of S-dots, and a linear relationship is observed between the ratio of fluorescence and the concentration of BChE in the range from 0.01 to 10 U/L. A limit of detection as low as 0.0069 U/L calculated, which is the lowest number so far. The assay also shows excellent selectivity towards various interference species and acetylcholinesterase. These features allowed the direct detection of BChE activity in human serum, demonstrating the great practical applications of our assay.
研究领域:
生物化学
·
医学诊断
·
纳米材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Hao Xu,Long Chen,Zhenlin Xu,David Julian McClements,Hao Cheng,Chao Qiu,Jie Long,Hangyan Ji,Man Meng,Zhengyu Jin
Starch-based packaging materials are being developed to alleviate environmental pollution and greenhouse gas emissions associated with plastic-based ones. However, the high hydrophilicity and poor mechanical properties of pure-starch films limit their widespread application. In this study, dopamine self-polymerization was used as a strategy to improve the performance of starch-based films. Spectroscopy analysis showed that strong hydrogen bonding occurred between polydopamine (PDA) and starch molecules within the composite films, which significantly altered their internal and surface microstructures. The composite films had a greater water contact angle (> 90°), which indicated that the incorporation of PDA reduced their hydrophilicity. Additionally, the elongation at break of the composite films was 11-fold higher than pure-starch films, indicating that PDA improved film flexibility, while the tensile strength decreased to some extent. The composite films also exhibited excellent UV-shielding performance. These high-performance films may have practical applications in food and other industries as biodegradable packaging materials.
研究领域:
材料科学
·
食品科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）