SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Wensheng Qi,Tingting Deng,Run Yuan,Ting Li,Dapeng Liu,Yaoliang Hong
To tackle the challenge of achieving high rejection for both divalent cations and anions simultaneously in polyamide membranes for desalination, a novel composite nanofiltration membrane (PES-PEI/SBE-β-CD-PA) was developed in this study. The membrane was fabricated by incorporating a layer-by-layer (LBL) self-assembled interlayer of polyethyleneimine (PEI) and sulfobutyl ether-β-cyclodextrin (SBE-β-CD), followed by interfacial polymerization (IP) to form the PA selective layer. The SBE-β-CD, leveraging its sulfonate groups and cavity structure, facilitated the enrichment and modulated diffusion of piperazine (PIP), enabling a significantly thinned (126 nm, down from the original 297 nm), defect-free PA layer with strong negative charge (−28.93 mV). The optimized membrane, relying on the synergistic mechanism of Donnan exclusion (electrostatic interaction) and steric hindrance, achieved a high pure water permeance of 15.42 L·m −2 ·h −1 ·bar −1 and excellent salt rejection performance of 98.41 %, 97.98 %, 91.81 %, 90.10 % and 54.28 % for Na 2 SO 4 , MgSO 4 , MgCl 2 , CaCl 2 and NaCl respectively, which is competitive compared to the state-of-the-art membranes. Moreover, the composite membrane maintained stable desalination performance over 72 h of continuous operation. This work demonstrates a promising strategy for fabricating high-performance desalination membranes through the construction of a hydrophilic LBL interlayer, offering potential applications in seawater and brackish water desalination.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2017
·
IF 2.714
Peng Li,Sen Li,Yu Wang,Yu Zhang,Guo-Zhi Han
Increasing application of noble-metal nanoparticles (MNPs) urges the development of a nontoxic and environmentally friendly synthesis methodology. In this paper,using β-Cyclodextrin (β-CD) as reducer and stablizer, a green synthetic approach of monodispersed silver nanoparticles (AgNPs) with diameter between 10–25 nmin aqueous alkaline medium is reported. By varying the molar ration of β-CD/AgNO 3 , the size of as-prepared silver particles can be readily controlled. Furthermore, the formation mechanism of the AgNPs was discussed. On the basis, the catalytic activity of the as-prepared AgNPs was studied toward reduction of p -nitrophenol by NaBH 4 . The experimental results shown that surface modified by β-CD can improve the catalytic activity of the silver nanoparticles.
研究领域:
材料科学
·
纳米技术
·
环境化学
·
催化
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RSC Advances
·
2023
·Vol. 13
·期 9
·5667-5673
·
IF 3.9
Bin Li,Haibo Qin,Ming Ma,Xiaojia Xu,Mengjing Zhou,Wenrui Hao,Zhigang Hu
In this paper, betaine (Bet) was used as a hydrogen bond acceptor (HBA), and acrylic acid (AA) and acrylamide (AM) were used as hydrogen bond donors (HBD) and mixed to form a deep eutectic solvent (DES). Different concentrations of β-cyclodextrin (β-CD) were dispersed in the DES, and a novel β-CD/P(AA-co-AM) hydrogel was prepared by frontal polymerization (FP). The characteristic structure and morphology of the hydrogels were analyzed using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM), and the properties of the hydrogels were investigated. The results show that the mechanical properties of the hydrogel were improved by β-CD acting as a second cross-linking agent in the polymerization process, thus increasing the cross-link density of the hydrogel. Because the carboxyl groups contained in the acrylic acid dissociate under alkaline conditions, the composite hydrogel shows excellent pH responsiveness under alkaline conditions. Tetracycline hydrochloride was used as a drug model to test the drug loading and drug release performance of the hydrogels. With the increase of β-CD content, the loading capacity of the hydrogels for tetracycline hydrochloride gradually increased. The data of drug release indicated that the hydrogel has good drug delivery performance and has promising applications in drug delivery systems and other areas.
研究领域:
材料科学
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药学
·
化学工程
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PubMed
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Food Analytical Methods
·
2019
·Vol. 12
·期 10
·2326-2333
·
IF 2.413
Zhang Wen,Liu Chao,Zou Xiaobo,Zhang Han,Xu Yiwei
This work introduces a β-cyclodextrin/multi-walled carbon nanotube (β-CD/MWCNT)–modified microelectrode array (MEA) for rapid determination of imidacloprid in vegetables. The MEA, fabricated on a silicon wafer, contains 20 parallel-connected working electrodes, a counter electrode and a reference electrode. The MWCNT is drop-casted onto the working electrode area, and β-CD is decorated onto the MWCNT layer with electropolymerization. Electrochemical behaviors of the as-fabricated sensor are investigated with cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV). Obtained results validate that the proposed sensor has a large electroactive area, great electrical conductivity, and high sensitivity. During preparation and application of the sensor, 0.5 mg mL −1 MWCNT suspension and phosphate-buffered solution (0.1 mol L −1 , pH = 7) are found to optimize experimental conditions. Under optimized conditions, a wide linear range as 5 to 100 μmol L −1 is obtained for target imidacloprid, and the limit of detection (LOD, S/N = 3) is well defined as 0.629 μmol L −1 . The sensor is used for sensing imidacloprid in cabbage, cucumber, and tomato. The results from this method are in accordance with high-performance liquid chromatography-mass spectrometry (HPLC-MS) data.
研究领域:
分析化学
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环境科学
·
农业科学
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LWT-FOOD SCIENCE AND TECHNOLOGY
·
2026
·
IF 7.1
Yuanchao Zhu,Yaqi Tang,Rumeng Wang,Dezhuang Gong,Fengzhao Wang,Danshi Zhu,Zhenzhen Zhang,Fangchao Cui,Jianrong Li
A robust organic Cur@β-CD composite photocatalyst was successfully synthesized. • A novel visible-light-driven antibacterial composite films were well fabricated. • Cur@β-CD markedly improved physicochemical properties of the as-prepared films. • The developed films significantly prolonged the storage shelf life of fresh bananas. Declining and unstable antibacterial activity restricts the application of packaging films. In this study, a curcumin/β-cyclodextrin inclusion complex (Cur@β-CD, CβCD) with excellent photodynamic activity was synthesized and incorporated as a functional filler into chitosan/polyvinyl alcohol (CS/PVA)-based composite films. The structural characteristics of CβCD were analyzed using FTIR and XRD, and the film morphology was observed using SEM. The physicochemical properties and photoresponsive antibacterial activities of the CβCD-CS/PVA films were investigated. Incorporating 15% CβCD improved the overall performance of the composite films. The tensile strength reached 13.87 MPa, and the water vapor permeability decreased to 1.34 × 10 −11 g m −1 ·s −1 ·Pa −1 . Under visible-light irradiation, the optimized photoresponsive film resulted in extremely low survival rates for Escherichia coli and Staphylococcus aureus . Furthermore, compared with the control, bananas packaged with the as-prepared active film exhibited a markedly longer shelf life. This study provides a feasible strategy for developing high-efficiency photoresponsive antibacterial packaging films. Download: Download high-res image (349KB) Download: Download full-size image
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Lifan Cai,Jingjing Yang,Tuo Zhao,Jijun Huang,Zequn Li,Hao Zhang,Yiwen Yao,Wanxin Zhu,Xinming Wu,Le Shao
With the advancement of the global dual-carbon goal, green technology has become a priority in the energy field. Among energy storage technologies, all-solid-state batteries attract significant attention due to their high energy density, enhanced safety, and long cycle life. Poly(ethylene oxide) (PEO)-based polymer solid-state electrolytes are a research hotspot for next-generation lithium-metal batteries because of their flexibility, film-forming capabilities, and compatibility with lithium salts. In this study, cyclodextrin (β-CD) is employed as a green filler and combined with high-modulus polyacrylonitrile (PAN) fibers and plastic crystalline succinonitrile (SN) to synergistically enhance the electrochemical and mechanical properties of PEO-based electrolytes. The PAN/PEO/LiClO 4 /β-CD/SN electrolyte achieves an ionic conductivity of 6.5 × 10 −5 S cm −1 at 30°C and a lithium ion transference number of 0.33 at 80°C. PAN fiber significantly improves mechanical properties, achieving a tensile strength exceeding eight times that of the PEO/LiClO 4 membrane. In Li/Li symmetric batteries, the electrolyte demonstrates excellent interfacial stability for over 1100 h at 0.1 mA cm −2 . Additionally, the LiFePO 4 |PAN/PEO/LiClO 4 /β-CD/SN|Li coin cell exhibits an initial discharge specific capacity of 148 mAh g −1 at 80°C and 0.5C, retaining 70% capacity after 200 cycles. This study presents a novel design approach for utilizing green fillers in SPEs.
研究领域:
材料科学
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能源技术
·
绿色化学
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Lei Yang,Xuanxuan Yuan,Dian Dai,Shuqiang Wang,Ying Wu,Haihua Wang,Zhongguo Shan
The growing concern over food safety and environmental pollution has stimulated the development of multifunctional biodegradable films. Herein, β-Cyclodextrin metal-organic frameworks (β-CD-MOFs) were prepared as loading carriers for chlorogenic acid (CGA) and silver nanoparticles (Ag NPs). These materials (CGA-Ag@CD-MOFs) were then added into a zein matrix to construct bioactive packaging films (MOFs-Zein). SEM showed that appropriate content of CGA-Ag@CD-MOFs (2 wt%) promoted the formation of a more uniform and denser film structure. FT-IR verified that hydrogen bonding between CGA-Ag@CD-MOFs and zein matrix endowed MOFs-Zein-2 % with superior tensile strength (24.61 ± 2.58 MPa), elongation at break (5.01 ± 0.71 %), barrier properties of water vapor (1.84 × 10 −7 g·m −1 ·h −1 ·Pa −1 ) and oxygen (0.63 × 10 −10 g·cm/cm 2 ·s). Moreover, it can control the release of both CGA and Ag + , which displayed high-efficiency antioxidant and antimicrobial activities against Escherichia coli O157:H7 and Staphylococcus aureus . Comprehensive biosafety evaluation through cytotoxicity (Caco-2 viability >98 %), hemolysis (< 5 %), and acute toxicity studies confirmed material safety. When applied for grape storage, MOFs-Zein-2 % effectively preserved nutritional quality and texture, and prolonged the shelf-life of grapes by 16 days. Importantly, complete biodegradation occurred within 40 days. This study provides a simple strategy for constructing of high performance of biodegradable packing films.
研究领域:
食品科学
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材料科学
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包装技术
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纳米技术
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环境科学
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食品安全
·
生物技术
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DOI
PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2022
·
IF 10.508
Jiarong Lv,Yanyan Qian,Qun Jing,Xinmei Wang,Ming-Hsien Lee,Zhaohui Chen
For phosphate nonlinear optical (NLO) materials, how to improve their small birefringence is confronted with a great contradiction of their weak optical anisotropy of tetrahedral PO4 groups. Herein, by introducing La3+ with a closed-shell structure and Cd2+ with a d10 electronic configuration, two NLO materials with a large birefringence, namely, La(PO3)3 (0.040@1064 nm) and β-Cd(PO3)2 (0.059@1064 nm), have been synthesized by a high-temperature solution method. In particular, for β-Cd(PO3)2, it possesses the largest birefringence among the known deep-ultraviolet (DUV) phosphates to date, which is attributed to cooperative effects of strong covalence of Cd–O groups and P–O pseudolayers similar to those of a plane. Meanwhile, β-Cd(PO3)2 exhibits the shortest cutoff edge (<190 nm) among the reported Cd-based inorganic compounds and realizes a balance between DUV transparence and a large birefringence. This insight provides a new opportunity to design high-performance NLO materials using metal phosphates.
研究领域:
材料科学
·
光学
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2023
·Vol. 140
·期 43
·e54581
·
IF 3
Zhengwen Lin,Fang Li,Xinyu Liu,Junlin Su
With the development of deep formations, high temperature and high salinity seriously affect the rheology and filtration performance of water-based drilling fluids. Therefore, in this study, a network-structured polymer (DSD-β-CD) with low viscosity effect was synthesized using β-cyclodextrin (β-CD) as the backbone and N,N-dimethylacrylamide (DMAA), sodium p-styrene sulfonate (SSS), and dimethyl diallyl ammonium chloride (DMDAAC) as monomers. The polymer was analyzed by transmission electron microscope, Fourier transform infrared spectrum, nuclear magnetic resonance, and thermogravimetric analysis. The filtrate reducer in this study showed excellent temperature and salt resistance, the filtration loss of the water-based drilling fluid containing 3.5% DSD-β-CD and 18% NaCl was 5.1 mL after hot rolling at 220°C for 16 h. Additionally, its viscosity was 0.2 mPa s higher than that of the water-based drilling fluid with 18% NaCl, showing an excellent low viscosity effect. The filtration loss reduction mechanism of DSD-β-CD was investigated by viscosity analysis, mud cake analysis, particle size distribution, hydration swelling of bentonite, and Zeta potential. The results showed that DSD-β-CD could be adsorbed on the surface of bentonite particles through hydrogen bonds and ionic bonds, which increased the dispersion of bentonite particle and the compactness of the mud cake, thus reducing the filtration loss.
研究领域:
材料科学
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石油工程
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高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Rui Liu,Xin Zhang,Ri-jia Liu,Yuan Sun,Bin-qiao Ren
In this study, we created a brand-new g-C 3 N 4 -MWCNTs/Ag/β-CD-MOF electrode that can be used as a platform for the electrochemical sensing of Rutin (RT). The g-C 3 N 4 -MWCNTs/Ag/β-CD-MOF composite was synthesized via calcination treatment and electrodeposition, coupled with hydrothermal reaction. This composite could appreciably enlarge the electrochemically active surface area of the as-prepared sensor to promote electron transfer and result in the enhanced response signals.With the assistance of differential pulse voltammetry (DPV) and cyclic voltammetry (CV), the electrochemical performance of sensor can be greatly enhanced. Under these optimum conditions, the designed electrochemical sensor was able to sense RT at the lower detection limit (LOD) of 0.69 nM (S/N = 3) with a wider range of 5–500 nM and showed high sensitivity of 1.97 μA . nM −1. cm −2 at room temperature. Additionally, the selective investigation on RT was performed with the related interfering molecules, and the g-C 3 N 4 -MWCNTs/Ag/β-CD-MOF/GCE showed decent stability and reproducibility. The real-time application of the modified electrode for RT detection was monitored in both pharmaceutical and serum samples with the satisfactory recovery. Overall, this research contributes to the field of the electroanalytical sensing and offers the potential applications in the drug monitoring.
研究领域:
分析化学
·
药物监测
·
生物医学工程
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高影响因子
FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Zhenglong Chen,Zhile Zhao,Yuxin Bu,Xinyan Yang,Yulin Fang,Hui Lin,Yudong Lu
An HP-β-CD-functionalized hydrogel SERS strategy was developed for white tea storage-year analysis. • HP-β-CD-assisted capture and Ag-hotspot SERS sensing of tea polyphenols were mechanistically discussed. • Agarose improved nanoparticle dispersion and signal uniformity. • Sample-level machine learning enabled internal storage-year discrimination of the tested white tea samples. • External validation using multi-origin samples is still required to confirm practical robustness. Accurate discrimination of white tea storage years is important for quality evaluation, authenticity control, and market regulation. In this study, an HP-β-CD-functionalized hydrogel surface-enhanced Raman scattering (SERS) substrate was developed for rapid storage-year discrimination of white tea. Hydroxypropyl-β-cyclodextrin-functionalized silver nanoparticles (HP-β-CD/Ag NPs) were incorporated into an agarose hydrogel to construct an HP-β-CD/Ag NPs/AG substrate. HP-β-CD was designed to promote the local capture of aromatic and polyphenolic tea components near SERS-active Ag hotspots, while the agarose hydrogel improved nanoparticle dispersion and signal uniformity. The optimized substrate retained distinguishable SERS responses for epigallocatechin gallate and quercetin at 10 −7 mol L −1 and showed good signal uniformity, with a relative standard deviation of 6.96%. White tea samples from seven storage years between 2011 and 2023 were analyzed, including 10 independent samples per year and 10 spectra per sample. Principal component analysis showed that the first three principal components explained 98.94% of the spectral variance. Under 50 repeated tea-sample-level splits, machine-learning models achieved stable internal storage-year discrimination, with sample-level accuracies ranging from 97.62% to 100.00%. A sample-level permutation test further indicated that the classification performance was unlikely to result from random label association. These results suggest that the proposed hydrogel SERS strategy can provide a rapid and fingerprint-based approach for white tea storage-year discrimination, although further external validation using more diverse samples is still required. Download: Download high-res image (179KB) Download: Download full-size image
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Pharmaceutics
·
2025
·Vol. 17
·期 11
·1410
·
IF 5.5
Pin Lv,Yamin Li,Gang Du,Jiawei Ding,Jiawei Zhou,Yuan Zhang,Huang Lin,Ming Yang,Chao Zhou,Bo Yang
Background/Objectives:Lipid nanoparticles (LNPs) have demonstrated notable clinical success as advanced drug delivery systems. However, the development of novel covalently bonded ionizable lipids faces substantial technical challenges, as their modification is difficult and they have a high molecular weight. To address this issue, we report the use of host–guest complexes in supramolecular chemistry as functional lipid motifs for constructing LNPs.Methods:Ionizable amine β-cyclodextrin (amine β-CD)-derived host–guest amphiphilic lipid molecules (HGLs) were designed for the construction of multi-stage assembly supramolecular LNPs (MSLNPs). The structure–function relationships and stability of MSLNPs were explored by screening eight types of amine β-CDs and varying the ratio of HGL to yolk phosphatidylcholine. Stability screening and molecular dynamics simulations were performed to clarify the self-assembly mechanisms and optimal formulations, followed by a systematic evaluation of delivery performance.Results:MSLNPs showed a high drug-loading efficiency (> 30%), a rapid-response release in acidic environments, and multi-pathway cellular uptake. In vivo delivery experiments using ethylenediamine β-CD-based MSLNPs in mice revealed no significant immunogenicity, no significant abnormalities in organs/tissues or their functions, a unique biodistribution pattern, and pronounced renal targeting. The successful development of MSLNPs with acidic pH-responsive control, a high delivery efficiency, and renal-targeting properties simplifies LNP preparation.Conclusions:This study offers novel insights into the design of simplified LNPs and the optimization of targeted delivery, with potential applications in renal disease therapy.
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高影响因子
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