Food Packaging and Shelf Life
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2021
·
IF 6.429
Changzhu Li,Wenqing Chen,Subramanian Siva,Haiying Cui,Lin Lin
To develop a novel food packaging material, hydroxypropyl-β-cyclodextrin (HP-β-CD) with good water solubility was used to encapsulate cinnamaldehyde (CA). The prepared CA/HP-β-CD inclusion complex (CA/HP-β-CD-IC) was further embedded into the nanofibers, which were composed of phospholipid and poly (ethylene oxide). FTIR and molecular structure modeling indicated that CA was encapsulated in HP-β-CD most probably by directly inserting the phenyl of CA into the cavity of HP-β-CD. Subsequently, the preferable mechanical properties with the uniform diameter distribution of the mat of nanofibers were realized. Meanwhile, the thermal stability of CA was further improved after being embedded into HP-β-CD and the mat of nanofibers. For the application on fresh-cut cucumber, the mat of nanofibers encapsulated with CA/HP-β-CD-IC exhibited antibacterial activity against Listeria monocytogenes at 4 °C and 25 °C for 4 days, without significant effect on the sensory indicators of fresh-cut cucumber. Thus, the mat of nanofibers encapsulated with CA/HP-β-CD-IC could be a promising and practical food packaging material.
研究领域:
食品科学
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材料科学
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DOI
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2024
·
IF 3.7
Xi Quan,Jun Zhang,Linlin Yin,Wei Zuo,Yu Tian
In this work, a novel composite material based on β-cyclodextrin-immobilized sodium alginate aerogel (β-CD/NaAlg) was developed utilizing cross-linker of epichlorohydrin and applied as an adsorbent to remove tetracycline antibiotics from reclaimed wastewater. A series of characterizations were utilized to confirm the successful synthesis of the adsorbent and this β-CD/NaAlg presented a three-dimensional network at the nano or micro scale. Under optimal conditions (pH=4, t =8 h, β-CD: NaAlg=9, adsorbent dosage=1.5 g·L –1 ), the maximum removal rate of β-CD/NaAlg to tetracycline was 70%. The adsorption behavior of tetracycline on β-CD/NaAlg conformed to the Freundlich isotherm model ( R 2 =0.9977) and the pseudo-second-order kinetic model ( R 2 =0.9993). Moreover, the adsorbent still removed 55.3% of tetracycline after 5 cycles. Specially, the adsorbent was integrated with ultrafiltration to adsorb tetracycline antibiotics from simulated reclaimed wastewater, and the removal rate of tetracycline reached 78.9% within 2 hours. The existence of Cr (VI) had a negligible impact on tetracycline removal, while the presence of humic acid exhibited a promoting effect. The possible adsorption mechanisms were also elucidated through X-ray photoelectron spectroscopy and density functional theory analysis. In summary, β-CD/NaAlg represents an environmentally friendly, efficient, and sustainable adsorbent for removing tetracycline antibiotics from reclaimed water.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
Applied Water Science
·
2026
·Vol. 16
·期 9
·250
·
IF 5.7
Eltaweil Abdelazeem S.,Alzain Rania,Fawzy Manal,El-Monaem Eman M. Abd,Elmaghrabi Nourhan
Antibiotic pollution poses significant ecological and human health risks in aquatic environments, making their removal an urgent environmental challenge. This study presents the development of an eco-friendly and efficient adsorbent fabricated from Hyphaene thebaica plant biochar along with Zeolitic imidazolate framework and Beta-cyclodextrin (ZIF-67/BC-β-CD). The fabricated ZIF-67/BC-β-CD nanocomposite demonstrates remarkable mechanical, thermal, and chemical stability as confirmed via different characterization techniques, including Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, zeta potential, and X-ray photoelectron spectroscopy. To examine the adsorption ability and optimize the performance of ZIF-67/BC-β-CD nanocomposite, a series of adsorption experiments of tetracycline (TC) were conducted. Results revealed that the maximum adsorption capacity of ZIF-67/BC-β-CD nanocomposite for TC is 294.11 mg.g − 1 at 25 ℃ and pH 5. The findings clarified that the process followed a pseudo-second-order kinetics model with a good fit to the Freundlich isotherm, rather than the Langmuir isotherm, suggesting a combination of physical and chemical adsorption. The adsorption of TC onto ZIF-67/BC-β-CD was found to be governed by a combination of physisorption (electrostatic, hydrophobic, and π–π interactions) and chemisorption (hydrogen bonding and n–π electron donor–acceptor interactions). Furthermore, the adsorbent demonstrated significant regeneration potential after five successive cycles, proving its potential to be used as a sustainable and efficient adsorbent for treating water contaminated with antibiotics.
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DOI
高影响因子
MATERIALS & DESIGN
·
2019
·
IF 5.77
Yang Hua,Xueliang Li,Li Ma,Yihang Wang,Huagao Fang,Haibing Wei,Yunsheng Ding
A novel organic composite coating was successfully fabricated through in situ mineralizing in artificial seawater for a lasting anti-corrosive coating. The mineralized composite films make full use of the advantages including rich hydroxyl group and special ring structure of β-cyclodextrin as well as superior adhesion and high flexibility of waterborne polyurethane coating. The results show the β-CD remarkably promotes the mineralization of CaCO 3 on WPU substances through the effective adsorption and complexation of hydrophobic cavity to calcium ions. The dense organic-inorganic composite film exhibits outstanding anti-corrosive performance with corrosion rate of 1.39 × 10 −3 mm/year for 3CD-WPU sample, being much less than 7.36 × 10 −2 mm/year for WPU coating under same conditions. The excellent anti-corrosion performance is mainly attributed to the uniform nucleation site provided by CD-WPU and further formation of dense CaCO 3 film. Furthermore, the radial distribution function and adsorb energy theoretic analysis by molecular dynamic simulation definitely reveal and support the mechanism of β-CD promoting the CaCO 3 mineralization.
研究领域:
材料科学
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化学工程
·
防腐蚀研究
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DOI
高影响因子
CHINESE JOURNAL OF CHEMISTRY
·
2011
·Vol. 29
·期 8
·1753-1758
·
IF 0.773
Xiuling Ma,Zhen Chen,Xiao Chen,Riyao Chen,Xi Zheng
A novel molecularly imprinted composite nanofiber was prepared by a simple electrospinning technique, in which polyvinylbutyral (PVB) was chosen as matrix, β -cyclodextrin ( β -CD) was used as a functional monomer and naringin (NG) as template molecules. After cross-linked by hexamethylene diisocyanate (HMDI), the composite nanofiber exhibited a high specific binding capacity. The morphological structure of the nanofibers was studied by means of infrared spectrum (IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The β -CD molecules were mostly homogeneously distributed within the PVB nanofiber without forming phase separated crystalline aggregates. Compared with traditional imprinted β -CD polymer, the binding experiments demonstrated that the molecularly imprinted composite nanofiber shows the specific binding sites and the selective binding ability for NG. The molecularly imprinted nanofiber could be used at least six times without any loss in binding capacity.
研究领域:
材料科学
·
药物化学
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DOI
高影响因子
BIOCHEMICAL ENGINEERING JOURNAL
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2022
·
IF 4.446
Lihui Jiang,Yuheng Han,Juan Xu,Ting Wang
A cellulose-based hydrogel with synergistic therapeutic effect was prepared by a one-pot method. The hydrogel had hydroxyethyl cellulose (HEC) as a framework and epichlorohydrin (EPI) as a cross-linking agent. Cationic-β-cyclodextrin (C-β-CD) was homogeneously embedded in the grid of the cross-linked structure. Zinc oxide nanoparticles (ZnO NPs) and menthol were used to provide analgesic and bactericidal effects . Menthol was uniformly loaded onto the hydrogel matrix by the addition of C-β-CD and increased the solubility of menthol in water. ZnO NPs were synthesized by in situ hydrothermal treatment . The positively charged group of C-β-CD and the active hydroxyl group of HEC were used to distribute the ZnO NPs uniformly on the hydrogel matrix without significant agglomeration. The hydrogel had a smoothly ordered and compact morphology. It exhibited adequate mechanical, swelling, water retention and oxygen permeability properties in tests. In addition, the hydrogel had an efficient bactericidal effect. Release experiments showed that the encapsulation of menthol by C-β-CD allowed for a slow release of menthol. Biocompatibility tests had shown that the hydrogel was non-toxic to normal human cells.
研究领域:
材料科学
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生物医学工程
·
药剂学
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产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2021
·
IF 5.645
Guangyu Wu,Qi Liu,Jingyi Wang,Siye Xia,Hualong Wu,Jiaxiang Zong,Jiangang Han,Weinan Xing
Wastewater containing pharmaceuticals can be bioaccumulated, posing a potential risk to drinking water, human health, and ecosystems. In order to make the adsorption process more suitable for actual application, rape straw biomass fiber (treated by an acidified sodium chlorite solution, 5%) and Fe 3 O 4 embedded β-CD to prepare a novel adsorbent (RSBCDF), which was used for the removal of ibuprofen (IBP) from aqueous solution. The RSBCDF was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmett-Teller (BET) measurements, scanning electron microscopy (SEM), and zeta potential measurements. The synthesized adsorbent was studied with regard to IBP removal percent under different adsorption conditions such as varying initial pH levels (4–10), initial ibuprofen concentrations (20−160 mg/L), contact time (5−150 min), and the dosage of adsorbent (10−100 mg) via batch adsorption experiments. The adsorption kinetics, thermodynamics, and isotherms were also investigated. The IBP adsorption behaviour followed a pseudo-second-order kinetic model and the Freundlich isotherm model. The maximum adsorption capacity obtained for ibuprofen was 48.29 mg/g. The values of Gibbs free energy change were negative (-2.58∼-3.56KJ/mol), suggesting that the process of ibuprofen adsorption onto adsorbent was spontaneous. The positive value of standard enthalpy change (12.09 kJ/mol) indicated that the adsorption process was endothermic. The obtained results prove that RSBCDF is a proficient and economically suitable material for removing IBP from water environments.
研究领域:
环境科学
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材料科学
·
药学
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DOI
高影响因子
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2020
·Vol. 412
·期 11
·2551-2564
·
IF 3.637
Yuan Meng-Meng,Zou Jiao,Huang Zhao-Ning,Peng Dong-Ming,Yu Jin-Gang
A novel electrochemical sensor, platinum nanoparticles/graphene nanoplatelets/multi-walled carbon nanotubes/β-cyclodextrin composite (PtNPs-GNPs-MWCNTs-β-CD) modified carbon glass electrode (GCE), was fabricated and used for the sensitive detection of folic acid (FA). The PtNPs-GNPs-MWCNTs-β-CD nanocomposite was easily prepared with an ultrasound-assisted assembly method, and it was characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The electrochemical behavior of FA at PtNPs-GNPs-MWCNTs-β-CD/GCE was investigated in detail. Some key experimental parameters such as pH, amount of PtNPs-GNPs-MWCNTs-β-CD composite, and scan rate were optimized. A good linear relationship ( R 2 = 0.9942) between peak current of cyclic voltammetry (CV) and FA concentration in the range 0.02–0.50 mmol L −1 was observed at PtNPs-GNPs-MWCNTs-β-CD/GCE. The detection limit was 0.48 μmol L −1 (signal-to-noise ratio = 3). A recovery of 97.55–102.96% was obtained for the determination of FA in FA pills (containing 0.4 mg FA per pill) at PtNPs-GNPs-MWCNTs-β-CD/GCE, indicating that the modified electrode possessed relatively high sensitivity and stability for the determination of FA in real samples. Graphical abstract
研究领域:
分析化学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Chun Feng,Lijuan Zhu,Yaqiong Cao,Yin Di,Zongxue Yu,Guhui Gao
This study reports a new strategy for enhancing the anti-corrosion properties of epoxy coatings. For this purpose, beta-cyclodextrin-graphene oxide (β-CD-g-GO) nanosheets were synthesized via anchoring beta-cyclodextrin on a graphene oxide surface in the presence of 3-glycidoxypropyltrimethoxysilane (KH560). The structure of the material was characterized by SEM, EDX, XRD, FT-IR and TGA. The inclusion of 2 wt. % GO and β-CD-g-GO nanosheets in epoxy resin remarkably enhanced the corrosion protection performance of the material relative to that of pure epoxy coating. Electrochemical impedance spectroscopy (EIS) measurements revealed that the impedance of the epoxy coating was improved after the addition of 2 wt. % GO and β-CD-g-GO nanosheets. The most pronounced improvement in the properties of the epoxy coating was obtained using β-CD-g-GO nanosheets. Scratches tests confirmed the reduced steel substrate corrosion in the case of epoxy coating that included β-CD-g-GO nanosheets compared to the corrosion obtained for other samples.
研究领域:
材料科学
·
腐蚀与防护
·
纳米技术
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产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2026
·
IF 6
Jiajun Zuo,Jingjing Gou,Haijia Zuo,Haoqian Wang,Mahe Li,Nong Wang
With the continuous advancement of global industrialization, oil-water separation materials that combine efficient separation and resource recovery have become an urgent issue in the fields of environmental science and engineering in crude oil extraction, oil-containing industrial production and wastewater discharge. To address the limitations of current separation membranes, such as susceptibility to damage and inadequate durability during operation, this study reports the synthesis of a self-healing organogel based on β-cyclodextrin dimers and dynamic phenylboronate ester bonds. This material was coated onto a nonwoven fabric substrate via a dip-coating and photo-polymerization process, yielding a self-healing oil-water separation mesh (SHSM) exhibiting superoleophilicity and underoil superhydrophobicity. The structural characteristics of the SHSM and its surface coating were characterized using scanning electron microscopy (SEM), proton nuclear magnetic resonance spectroscopy ( 1 H NMR) and Fourier-transform infrared spectroscopy (FTIR), the separation performance and self-healing capability of SHSM were systematically evaluated. Experimental results demonstrate that the SHSM achieves separation efficiencies exceeding 99.5% for various oil-water mixtures, with an oil flux reaching 4.30×10⁴ L·m⁻²·h⁻¹. Even after mechanical damage or repeated use, the SHSM can restore its structural integrity and functional performance through the reformation of dynamic boronate ester bonds, thereby significantly extending its service life. This research offers a novel strategy for the development of highly efficient and durable oil-water separation materials. Download: Download high-res image (232KB) Download: Download full-size image A β-cyclodextrin dimer coating enables self-healing, superoleophilic, underoil superhydrophobic non-woven fabric for oil-water separation.
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高影响因子
ULTRASONICS SONOCHEMISTRY
·
2025
·
IF 9.7
Yuexin Pan,Wenhao Zhang,Wanzhou Yang,Zhiyuan Tai,Xia Liu,Jia Ran,Xiaodong Yu,Qiyi He
Mangoes are highly susceptible to post-harvest spoilage, leading to significant losses. This study aimed to optimize the encapsulation of lemongrass essential oil (LEO) using ultrasonic-assisted hydroxypropyl-β-cyclodextrin (HP-β-CD) and response surface methodology (RSM). The ultrasonic-assisted inclusion complex (UIC) was characterized through various techniques including particle size analysis, SEM, UV–vis, FTIR, XRD, and TGA. The antibacterial activity of the UIC was evaluated, and its effectiveness in prolonging mango shelf life was assessed by monitoring parameters such as weight loss, firmness, total soluble solids (TSS), titratable acidity (TA), malondialdehyde (MDA), vitamin C (VC) content, and external appearance. The results indicated that ultrasonic-assisted encapsulation significantly improved the encapsulation efficiency (EE), with optimal conditions of a core-wall ratio of 9:1, ultrasonic power of 150 W, and temperature of 36 °C. The UIC exhibited sustained release of LEO and enhanced antimicrobial activity, resulting in significant reductions in weight loss, firmness degradation, and metabolic changes during mango storage. Treated mangoes also showed improved appearance, with delayed onset of black spots and browning. These findings suggest that ultrasonic-assisted HP-β-CD encapsulation of LEO is an effective, eco-friendly strategy for postharvest preservation of mangoes, offering substantial potential for extending shelf life and maintaining fruit quality.
研究领域:
食品科学
·
农业工程
·
材料科学
·
微生物学
·
化学工程
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产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL RESEARCH
·
2026
·
IF 8.2
Qiawen Zhang,Wensheng Qi,Dapeng Liu,Ganwei Zhang,Shusu Shen,Yaoliang Hong
To improve the permeability-selectivity balance in polyamide nanofiltration membranes, a dual-charged composite membrane (PES-CS/SBE-β-CD-PA) was fabricated via interfacial polymerization on a self-assembled CS/SBE-β-CD interlayer designed to regulate the interfacial availability and transport of PEI monomers during polyamide formation, yielding a selective layer with a lower apparent cross-sectional thickness (approximately 173 nm) and more uniform morphology. The negative potential of the interlayer-terminated surface before IP (−9.8 mV), the positive potential of the final PA surface (15.63 mV), and the sequential fabrication process support the designed negative-interlayer/positive-PA configuration. The optimized membrane exhibits a molecular weight cut-off of 445 Da, an average pore size of 0.51 nm, and MgCl 2 and MgSO 4 rejections of 94.00% and 91.34%, respectively, while maintaining a water permeance of 15.20 L m −2 ·h −1 ·bar −1 . The morphology, pore-size, and charge results support a separation mechanism combining steric/hydration effects with charge-dependent Donnan partitioning. In addition, the membrane shows improved antifouling properties and stable separation performance during 72 h continuous filtration under the tested conditions. This work presents an effective interfacial-regulation strategy for constructing nanofiltration membranes with balanced separation and antifouling performance.
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DOI
高影响因子
危险品化学品经营许可证（带存储）