npj Science of Food
·
2025
·Vol. 9
·期 1
·1-10
·
IF 7.8
Zhao Huamin,Zheng Xiaoxi,Su Jihao,Wang Jun,Wang Xinrui,Li Hang,Wang Juan,Shen Kexin,Zhao Chao
Electrochemical detection of foodborne pathogens requires simplified electrode modification and enhanced sensitivity. This study introduced Cd-decorated ternary FeCoNi layered double hydroxides (Cd-FeCoNi LDHs) platform for label-free Staphylococcus aureus ( S. aureus ) detection via Cu 2+ biosorption. The FeCoNi LDHs were engineered with optimized metal sites to create lamellar structures with high electrocatalytic surface area. Further incorporating with Cd particles deposition, the response of the Cd-FeCoNi LDHs to Cu 2+ exhibited a double-enhanced differential pulse voltammetry signal. Concurrently, S. aureus has been explored to adsorb Cu 2+ through surface carboxyl and phosphate groups. By integrating with specific magnetic separation, the variation of Cu 2+ derived from biosorption by S. aureus triggered the rapid electrical response of the Cd-FeCoNi LDHs platform. This approach achieved 5.4 CFU/mL detection without bio-labeling, while resisting matrix interference. This work highlighted the innovative application of bacterial metal ions biosorption and label-free sensing platform for foodborne pathogen detection.
研究领域:
生物电化学
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材料科学
·
微生物检测
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DOI
PubMed
高影响因子
Materials Today Communications
·
2020
·
IF 2.678
Xiaomei Zhang,Li Dou,Chengsong Peng,Liang Shi,Xiaoli Ji
A new method involving a coupling reaction and vacuum distillation (RVD) was introduced to prepare the β -CD cross-linking polymeric adsorbent (PCD RVD ). The preparation conditions, including the molar ratio of cross-linking agent and β -CD, dosage of the solvent, reaction time, and vacuum distillation temperature and time, were investigated in detail. Compared with a product prepared at normal pressure, PCD RVD possessed a lower content of β -CD, a higher content of carboxyl groups, a lower adsorption selectivity, and a higher efficiency as well as adsorption capacity to remove dyes methylene blue (MB), and Rhodamine B (RhB), methyl orange (MO). The PCD RVD was characterised by FT-IR, TG, and SEM, and was employed for the adsorption of MB and RhB from an aqueous solution. Results showed that the adsorption quantity of MB ( Q e,MB ) was higher than that of Q e,RhB , except in the acidic medium. The equilibrium data followed the Langmuir isotherm model, and the calculated Q m,MB and Q m,RhB were 250.0 mg/g and 231.5 mg/g, respectively. The adsorption kinetics fitted the pseudo-second-order model. It was inferred that PCD RVD exhibited a high adsorption capacity for both dyes due to its more homogeneous polymeric network formed during RVD and the higher content of carboxyl groups. The differences between Q e,MB and Q e,RhB were mainly attributed to the size of MB and RhB.
研究领域:
化学工程
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环境科学
·
材料科学
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DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2021
·
IF 3.196
Hang-Wei Wen,Huan Xia,Yin Yu,Xiaoyu He,Jiang Wang
This article has been retracted: please see Elsevier Policy on Article Withdrawal ( http://www.elsevier.com/locate/withdrawalpolicy ). This article has been retracted at the request of the Editor-in-Chief. In investigating concerns brought up regarding the authenticity of the article, the editors reached out to the corresponding author for an explanation and to request the original data. Per journal policy, the editors, at their discretion, may request deposition of any or all original data files for examination by the reviewers and/or editors. As a result of the author’s unsatisfactory explanation and failure to provide these data—in violation of journal policy—the editors feel that the findings of the manuscript cannot be relied upon. The corresponding author does not agree to this retraction.
研究领域:
化学
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材料科学
·
医学
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DOI
高影响因子
JOURNAL OF PHYSICS D-APPLIED PHYSICS
·
2023
·Vol. 56
·期 49
·495103
·
IF 3.4
Yujiao Ma,Yuzhou Sun,Zihan Zhang,Haokai Zhao,Haifeng Gao,Qing Zhou,Wenbo Li,Xiaoyun Teng,Chao Gao,Wei Yu
In this paper, the open-circuit voltages (VOC) of Cu2ZnSn(S,Se)4 (CZTSSe) solar cells were improved by soaking the CZTSSe films in Cd/NH3 solutions before the deposition of buffer layers. The effects of Cd/NH3 soaking on the properties of CZTSSe films and solar cells were investigated in depth. We found Cd/NH3 soaking can promote downward band bending of the CZTSSe layer at the surface region. In addition, the Cd/NH3 soaking can eliminate the deep level acceptor in CZTSSe and decrease the density of the defects at the absorber/buffer interface. These effects can significantly reduce the carrier recombination in the depletion region of CZTSSe solar cells. As a result, the VOC of CZTSSe solar cells were increased from ∼460 mV to ∼480 mV, the efficiency of the best CZTSSe solar cell was increased from 10.2% to 11.6% by the Cd/NH3 soaking process.
研究领域:
材料科学
·
光伏技术
·
半导体物理
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Linyun Mou,Ya Lu,Jiale Ma,Shuwei Shu,Jianlong Li,Ganpeng Li
In response to the rapid quality degradation of peaches due to post-harvest decay, this study developed a composite film for preservation. Two primary pathogens responsible for peach decay, Aspergillus flavus and Talaromyces funiculosus , were identified. Molecular docking attributed to the main binding position of citral and geraniol's interactions with type I polyketide synthase on their antifungal effects, as well as the caffeic acid with its tyrosinase on antioxidant efficacy. β -CD-MOFs were synthesized via vapor diffusion, demonstrating exceptional spatial loading via SEM. CEOs (citral + geraniol) encapsulated in β -CD-MOFs were incorporated into a chitosan/pullulan matrix, yielding a film with 260.27 % fracture tensile strain, significantly ( P < 0.001) outperforming pure chitosan (21.87 %), possessing excellent mechanical properties, and the improvement in the water solubility of the film facilitates the release of active compounds. The utilization of a compositel film on peaches has shown significant efficacy in controlling decay index ( P < 0.05), weight loss ( P < 0.05), firmness ( P < 0.05) and production of malondialdehyde ( P < 0.05). Compared to untreated controls, the treated peaches exhibited an extended shelf life of 2 days, highlighting the superior preservation capabilities of the film. Hence, the film presents a promising solution for fruit preservation.
研究领域:
食品科学
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材料科学
·
植物病理学
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DOI
PubMed
高影响因子
Arabian Journal of Chemistry
·
2022
·
IF 6.212
Jiacheng Li,Lisha Liao,Yannan Jia,Tian Tian,Shiwei Gao,Chenyue Zhang,Wei Shen,Zheng Wang
In this study, the preparation of magnetic Fe 3 O 4 /ZIF-8 (MFZ) and its adsorption properties for Cd(II) from water were investigated. Various characterizations demonstrate that the as-prepared MFZ has well magnetic-separation performance and thermal stability. In batch adsorption tests, the effects of pH, initial concentration, and adsorbent dosage were evaluated. According to the findings, when the pH is 7 and the dosage is 150 mg/L, the adsorption capacity for a 40 mg/L Cd(II) solution reaches 102.3 mg/g in 180 min. The Cd(II) adsorption processes was found to correspond to pseudo-first-order kinetics and Langmuir model according to the adsorption kinetics and isotherms. The Langmuir model predicted a maximal saturation adsorption capacity of 160.26 mg/g at 298 K. Thermodynamic analysis revealed that the Cd(II) adsorption is an endothermic, spontaneous process. Ion exchange, coordination reaction, and electrostatic interaction are all involved in Cd(II) adsorption by MFZ. The optimum conditions for Cd(II) adsorption were proposed and confirmed in accordance with the results of the response surface optimization experiments. Furthermore, regeneration tests demonstrate the great repeated regeneration ability of MFZ. According to the anticipated production cost, treating wastewater with a Cd(II) concentration of 40 mg/L would cost roughly US$ 8.35/m 3 . MFZ showed good potential for Cd(II) removal from water.
研究领域:
环境科学
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材料科学
·
化学工程
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DOI
高影响因子
INTERNATIONAL JOURNAL OF PHARMACEUTICS
·
2015
·
IF 3.65
Hailong Zhang,Xiaoyan Huang,Ya Sun,Guangyou Lu,Ke Wang,Zhigang Wang,Jianfeng Xing,Yang Gao
Effects of hydroxypropyl-β-cyclodextrin grafted polyethylenimine (HP-β-CD-PEI) including HP-β-CD-PEI 600 , HP-β-CD-PEI 1800 , HP-β-CD-PEI 10000 on the pulmonary absorption of insulin, calcitonin, 5(6)-carboxyfluorescein (CF) and fluorescein isothiocyanate dextrans (FDs) with various molecular weights (FD4, FD10 and FD70) were examined by an pulmonary absorption study in rats. Pulmonary absorptions of these poorly absorbable drugs were significantly enhanced by HP-β-CD-PEI 1800 and HP-β-CD-PEI 10000 , and HP-β-CD-PEI 1800 with the concentration of 5% (w/v) provided maximal absorption enhancing effect on pulmonary absorption of these model drugs. The toxicity study demonstrated that HP-β-CD-PEI did not induce any toxic action to rat pulmonary membranes. In addition, zeta potential of insulin solution changed to positive by addition of various HP-β-CD-PEI, meanwhile, the degree of positive charge was linearly correlated with absorption enhancing effect of HP-β-CD-PEI, suggesting that positive charge of HP-β-CD-PEI might be related to their absorption enhancing mechanisms for enhancing pulmonary absorption of insulin in rats. In conclusion, HP-β-CD-PEI is a potential and safe absorption enhancer for improving absorption of hydrophilic macromolecules especially peptide and protein drugs by pulmonary delivery.
研究领域:
药理学
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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
CHEMICAL ENGINEERING RESEARCH & DESIGN
·
2017
·
IF 2.538
Shuangzhen Guo,Pengpeng Jiao,Zhigang Dan,Ning Duan,Jian Zhang,Guanyi Chen,Wubin Gao
A novel l -arginine modified magnetic bioadsorbent (Fe 3 O 4 -CS-L) was fabricated to remove Zn(II), Cd(II) and Pb(II) from aqueous solution by adsorption method. Several techniques such as FT-IR, SEM, XRD, TGA and VSM were used for characterizing the Fe 3 O 4 -CS-L. The results showed that the Fe 3 O 4 -CS-L was successfully prepared. Batch experiments were conducted to investigate the parameters affecting the adsorption of the novel magnetic bioadsorbent to metal irons, such as adsorption isotherm and adsorption kinetics. The adsorption equilibrium was commendably described by pseudo-second-order model. Langmuir model was better than Freundlich model to describe adsorption isotherm data and the predicted maximum adsorption capacities of Zn(II), Cd(II) and Pb(II) were 256.41 mg/g, 156.99 mg/g and 128.63 mg/g, respectively. Competition adsorption results showed that the adsorption order of Fe 3 O 4 -CS-L to metal ions was Pb(II) > Zn(II) > Cd(II). Moreover, regeneration studies suggested that Fe 3 O 4 -CS-L has a good recyclability. All the results showed that Fe 3 O 4 -CS-L could be a promising material in environment pollution cleanup.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2022
·Vol. 29
·期 2
·283-291
·
IF 3.85
Zheng Jihong,Zhu Liangxin,Shen Zhitao,Li Fumin,Ling Lanyu,Li Huilin,Chen Chong
An excellent organolead halide perovskite film is important for the good performance of perovskite solar cells (PSCs). However, defects in perovskite crystals can affect the photovoltaic properties and stability of solar cells. To solve this problem, this study incorporated a complex of CdS and Cd(SCN 2 H 4 ) 2 Cl 2 into the CH 3 NH 3 PbI 3 active layer. The effects of different doping concentrations of CdS and Cd(SCN 2 H 4 ) 2 Cl 2 on the performance and stability of PSCs were analyzed. Results showed that doping appropriate incorporation concentrations of CdS and Cd(SCN 2 H 4 ) 2 Cl 2 in CH 3 NH 3 PbI 3 can improve the performance of the prepared solar cells. In specific, CdS and Cd(SCN 2 H 4 ) 2 Cl 2 can effectively passivate the defects in perovskite crystals, thereby suppressing the charge recombination in PSCs and promoting the charge extraction at the TiO 2 /perovskite interface. Due to the reduction of perovskite crystal defects and the enhancement of compactness of the CdS:Cd(SCN 2 H 4 ) 2 Cl 2 :CH 3 NH 3 PbI 3 composite film, the stability of PSCs is significantly improved.
研究领域:
材料科学
·
能源技术
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DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2016
·
IF 1.78
Yinghui Deng,Yanhua Pang,Yafei Guo,Yufeng Ren,Fen Wang,Xiali Liao,Bo Yang
Daidzein is an isoflavone of naturally abundance existing in plants and foods which has attracted much attention for its significant benefits on human health. However, its application was severely limited by its poor solubilities, instability and low bioavailability. To overcome these drawbacks, inclusion complexes of daidzein with two cyclodextrin (CD) derivatives, i.e., 2-hydropropyl-β-cyclodextrin (HP-β-CD) and sulfobutyl ether-β-cyclodextrin (SBE-β-CD) were prepared and characterized both in solution and solid state by 1D and 2D NMR , XRD, SEM and elemental analyses. Fluorescence spectroscopy and the Job plot were used to demonstrate a mainly 1:1 inclusion mode between daidzein and CDs. Their thermal stabilities were evaluated with TG and DSC experiments. Moreover, water solubility of daidzein was significantly improved by inclusion complexation with CDs. These results might suggest valuable approaches to developments of new pharmaceutical formulations of daidzein.
研究领域:
药学
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化学
·
材料科学
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产品关联
DOI
高影响因子
Desalination and Water Treatment
·
2014
·
IF 0.987
Feng Zhang,Manman Wang,Limei Zhou,Xiaoyan Ma,Yafen Zhou
Cross-linked chitosan–zeolite composite was prepared and characterized by Fourier transform infrared spectroscopy and scanning electron microscope. Adsorption of Cd(II) by the cross-linked chitosan–zeolite composite as a function of solution pH, contact time, initial Cd(II) concentration, and temperature was investigated systematically by batch experiments. The obtained results showed that the removal of Cd(II) was pH dependent and the optimum adsorption was achieved at pH 7.0. The adsorption process could be described by pseudo-second-order kinetic model. Thermodynamic parameters revealed the spontaneous and endothermic nature of the adsorption. The batch adsorption data could be well elucidated by the Langmuir model. The maximum adsorption capacity of Cd(II) on the cross-linked chitosan–zeolite composite at 25°C determined from the Langmuir model was 102.15 mg/g. The adsorbent was successfully regenerated using EDTA, HNO3, and HCl solution as desorbent, respectively.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
Matter and Radiation at Extremes
·
2021
·Vol. 6
·期 2
·
IF 2.845
Liu Meifang,Ai Xing,Liu Yiyang,Chen Qiang,Zhang Shuai,He Zhibing,Huang Yawen,Yin Qiang
Deuterated polymer microspheres can be used as a neutron source in conjunction with lasers because thermonuclear fusion neutrons can be produced efficiently by collisions of the resulting energetic deuterium ions. A new type of solid deuterated polymer microsphere with a carbon hydrogen–carbon deuterium (CH-CD) multilayer has been designed for preparing the target for inertial confinement fusion (ICF) experiments. To fabricate these solid CH-CD multilayer microspheres, CH beads are first fabricated by a microfluidic technique, and the CD coating layer is prepared by a plasma polymerization method. Both polystyrene (PS) and poly( α -methylstyrene) (PAMS) are used as the material sources for the CH beads. The effects of the PS and PAMS materials on the quality of the solid CH beads and the resulting CH-CD multilayer polymer microspheres are investigated. The solid PS beads have better sphericity and a smoother surface, but large vacuoles are observed in solid PS-CD multilayer microspheres owing to the presence of residual fluorobenzene in the beads and a glass transition temperature of the solid PS beads that is lower than the temperature of plasma polymerization. Therefore, solid PAMS beads are more suitable as a mandrel for fabricating solid CH-CD multilayer polymer microspheres. Solid CH-CD multilayer microspheres with specified size have been successfully prepared by controlling the droplet size and the CD deposition rate and deposition time. Compared with the design value, the diameter deviation of the inner CH beads and the thickness deviation of the CD layer can be controlled within 20 µ m and 2 µ m, respectively. Thus, an approach has been developed to fabricate solid CH-CD multilayer microspheres that meet the physical design requirements for ICF.
研究领域:
材料科学
·
核物理
·
化学工程
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DOI
高影响因子
危险品化学品经营许可证（带存储）