JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2018
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IF 3.235
Fang Peng,Meilin Chu,Jiajia Sun,Yuhong Liu,Qicheng Zhang,Yajun Chen,Fenghe Wang,Wenbo Zhao
The electrochemical immunosensor was fabricated by immobilizing alpha-fetoprotein (AFP) antigen onto the magnetic glassy carbon electrode (MGCE) that modified by Fe 3 O 4 @polystyrene (PS)/polydopamine (PDA)-Au nanotubes . The aim of this study was to develop a new route to prepare Fe 3 O 4 @PS/PDA-Au nanotubes with well dispersed Au nanoparticles (AuNPs). The immune detection platform showed good analytical performance for determination AFP in a linear range of 0.01–100 ng/mL with a correlation coefficient of 0.9970 under optimal conditions. The detection limit was calculated to 0.0088 ng/mL (S/N = 3). In addition, the good detection results of AFP in human serum were obtained by the immunosensor. The use of composite nanotubes to build advanced biosensing interface will bring more possibilities for future biomedical detection.
研究领域:
生物医学工程
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES COMMUNICATIONS
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2020
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IF 4.915
Yanlin Li,Wenyuan Duan,Ai Fujisaka,Toshihiro Moriga,Xuegang Lu,Sen Yang
Monodisperse Fe 3 O 4 @PS colloidal particles with hollow core/shell structure and high saturation magnetization were successfully fabricated by a facile chemical approach. Owing to magnetic nature of iron oxide core and positively charged polystyrene shell, the colloidal particles in suspension assembled into ordered array and showed dual-response behavior to magnetic and electric field. When the cooperation between magnetic and electric field matched well, the photonic crystals showed better structural color and higher reflectivity . Consequently, as-synthesized Fe 3 O 4 @PS colloids have great potentials in some high-tech fields such as color sensors, color display, camouflage, electronic papers, and so on.
研究领域:
材料科学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
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2015
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IF 1.97
Liuhua Yu,Gazi Hao,Junjun Gu,Shuai Zhou,Ning Zhang,Wei Jiang
In this work, Fe 3 O 4 /PS composites with a rough surface and different coating rates were successfully designed and synthesized by emulsion polymerization. We carried out some comparative experiments to compare magnetic properties and oil absorption properties of the nano-magnetic materials. It had been found that several prepared groups of magnetic nanocomposites have a core–shell structure and good coating rates. These nanoparticles combined with unsinked, highly hydrophobic and superoleophilic properties. The absorption capacity of Fe 3 O 4 /PS composites for organic solvents and the composites could absorb diesel oil up to 2.492 times of its own weight. It is more important that the oil could be readily removed from the surfaces of nanoparticles by a simple ultrasonic treatment whereas the nanocomposites particles still kept highly hydrophobic and superoleophilic characteristics. With a combination of simple synthesis process, low density, magnetic responsibility and excellent hydrophobicity , Fe 3 O 4 /PS nanocomposites as a promising absorbent have great potential in the application of spilled oil recovery and environmental protection.
研究领域:
材料科学
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环境工程
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Environmental Technology & Innovation
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2021
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IF 5.263
Yanghao Pu,Zhengfeng Xie,Xingyu Gong,Yuru Yan,Jun Zhang
Design and fabrication of structurally optimized absorbents are important for wastewater treatment such as dyes removal. Herein, modifying the environmentally harmful waste polystyrene foam as an efficient recyclable adsorbent for organic dyes is important Magnetic amidated modified polystyrene (Fe 3 O 4 /PS-SD) was prepared by Friedel–Crafts reaction, N,N”-dicyclohexylcarbodiimide (DCC) dehydration condensation, and chemical co-precipitation reaction. Fe 3 O 4 /PS-SD had highly efficient removing performance for organic dyes in large volume of water sample solutions, and the equilibrium was achieved in 0.5 h. The maximum adsorption capacity for Methylene blue (MB), Safranine T (ST), and Congo red (CR) were 620.32 mg g −1 , 679.63 mg g −1 , and 1425.77 mg g −1 , respectively, at room temperature according to the Langmuir adsorption isotherm (R 2 > 0.91). The kinetic data of the three dyes followed pseudo-second-order kinetics. After ten regeneration cycles, the removal rate remained high (> 80%). Experimental results showed that Fe 3 O 4 /PS-SD was an excellent adsorbent for water treatment with high regeneration property and thermal stability.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2023
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IF 9.8
Long Zhang,Haonan Liu,Qi Xin,Lijuan Tang,Jie Tang,Yin Liu,Le Hu
Concerns regarding the environmental hazards and health risks of nanoplastics (NPs) are increasing. However, quantifying of NPs in vivo remains challenging. In this study, we propose a strategy for using magnetic resonance imaging (MRI) to quantify NPs internalized by mouse macrophages. Model NPs (Fe 3 O 4 @PS) with more homogeneous sizes and morphologies were obtained by encapsulating Fe 3 O 4 in polystyrene . A standard curve was generated by linearly fitting the intensity and concentration charts to the Fe 3 O 4 @PS MRI data. The mass of Fe 3 O 4 @PS captured by the mouse macrophages was estimated using a standard curve. An explanation of how the standard curves were created and used is provided in the text. The accuracy of the MRI results was demonstrated using, inductively coupled plasma (ICP). Quantitative results from MRI and ICP revealed that the mouse macrophage uptake increased as NPs concentrations decreased. According to the ICP results, when the NPs exposure concentration was 10 μg/mL, the uptake rate by mouse macrophages was 63.0 %. The quantitative MRI results were slightly lower than those for ICP, with an uptake rate of 57.7 % in mouse macrophages at the same concentration. Therefore, MRI provides a new perspective for quantitative NPs analysis.
研究领域:
环境科学
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医学影像
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毒理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2019
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IF 3.375
Yu Zhou,Ning Zhang,Xiang Zhou,Yubing Hu,Gazi Hao,Xiaodong Li,Wei Jiang
With the increase of oil spill accidents and discharge of oily wastewater, a novel oil adsorption material with superhydrophobicity and reusability is desired. To our knowledge, low surface energy and surface roughness are two key factors for superhydrophobic materials. Thus, a recyclable superhydrophobic PU@Fe3O4@PS sponge was fabricated through ultrasonic dip-coating and self-initiated photografting and photopolymerization (SIPGP) to attach Fe3O4 nanoparticles and polystyrene (PS) brushes onto the skeleton surface of the polyurethane (PU) sponge, constructing superhydrophobic micronano hierarchical surface. The preparation process was facile and simple, which was accomplished without initiator under simple UV irradiation. This as-prepared sponge selectively removed various oily contaminants from water with high adsorption capacity, and its magnetic property and elasticity endowed it with good reusability. When it was connected with a negative pressure system, continuous oil–water separation was achieved. Therefore, it is really a potential adsorbent for practical application in oil-polluted water treatment.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2020
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IF 5.647
Yang Wang,Pengcheng Gao,Yingying Wei,Yajin Jin,Si Sun,Zhifei Wang,Yong Jiang
A facile and cost-effective preparation of silver nanoparticles decorated magnetic composite for the effective catalytic degradation of 4-nitrophenol (4-NP) and Methylene blue (MB) and Rhodamine B (RhB) was investigated. Fe 3 O 4 @Polystyrene@Ag (Fe 3 O 4 @PS@Ag) catalyst was prepared via a two-step procedure. Firstly, carboxyl groups modified magnetic microspheres (Fe 3 O 4 @PS-COOH) has been successfully synthesized by microemulsion polymerization. Then Ag ions were adsorbed and in-situ reduced on the surface of Fe 3 O 4 @PS microspheres . To estimate the catalytic activity of Fe 3 O 4 @PS@Ag catalyst, the reduction experiments of MB, RhB and 4-NP were performed in the presence of NaBH 4 . The results indicated that Fe 3 O 4 @PS@Ag catalyst has a good catalytic performance and these dyes can be reduced in a very short time, which the apparent rate coefficients are 0.0089 s −1 , 0.0187 s −1 and 0.0086 s −1 for MB, RhB and 4-NP respectively. In addition, it could be easily collected from aqueous solution by a magnet so that the catalyst could be recovered and reused after the catalytic process. The catalytic activity was still high after seven cycles. This catalytic reaction is in agreement with the pseudo-first-order kinetic equation . Furthermore, the as-prepared Fe 3 O 4 @PS@Ag catalyst outperforms other catalysts in the degradation of these organic dyes.
研究领域:
化学
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环境科学
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纳米技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）