OPTICAL MATERIALS
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2025
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IF 4.2
Rui Wu,Yulin Wang,Xi Song,Hairan Zhang
Antibiotic residues in food and environment pose a serious threat to human's health and ecological system. Therefore, it is crucial and urgent challenge to fabricate Surface-Enhanced Raman Scattering (SERS) substrate with high sensitivity to detect pesticide residues. A multifunctional three-layer Fe 3 O 4 /HAP/Ag nanoparticle system was fabricated as an active SERS substrate. The active substrate was characterized by comprehensive techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM), Scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), mapping, and X-ray photoelectron spectroscopy (XPS). The FHA was not only employed to detect ciprofloxacin (CIP) solution by SERS but also it was successfully applied for detection of CIP in fish body. It showed excellent linear relationship in the range of 1.0 × 10 −8 - 1.0 × 10 −3 mol/L for CIP, with low limit of detection (7.5 × 10 −9 mol/L), satisfactory enhancement factor, stability, and repeatability. A novel approach for detecting analyte in animal's body based on SERS was developed. It could be potential candidate to rapid detection of analyte for animal and it will open new perspective in application of SERS in vivo.
研究领域:
环境科学
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分析化学
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食品安全
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DOI
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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2020
·Vol. 324
·期 3
·1329-1337
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IF 1.137
Zeng Dejun,Dai Ying,Zhang Zhibing,Wang Youqun,Cao Xiaohong,Liu Yunhai
In this work, the magnetic hydroxyapatite composite (Fe 3 O 4 @HAP) was prepared and used to remove of U(VI). The characterizations of transmission electron microscope and vibrating sample magnetometer indicated that the average size and saturation magnetizations ( M s ) of Fe 3 O 4 @HAP was about 360 nm and 20.89 emu g −1 , respectively. The results of solid-phase extraction indicated that at pH 5.0, the removal efficiency of Fe 3 O 4 @HAP was more than 95% within 20 min. The maximum adsorption capacity ( q m ) of Fe 3 O 4 @HAP was 789.58 mg g −1 . Therefore, Fe 3 O 4 @HAP may be a rapid and highly efficient magnetic adsorbent to remove of U(VI) from water.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
Journal of the Iranian Chemical Society
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2026
·Vol. 23
·期 9
·283
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IF 2.4
Wu Rui,Tian Guanghui,Liu Cunfang,Li Yapeng
The controlled synthesis of hybrids nanoparticles (NPs) and polymer have received significant attention for application in environment. In the paper, green and multifunctional polymer-based Fe 3 O 4 /hydroxyapatite (HAp)/polyacrylic acid (PAA)/ polyacrylamide (PAM) nanohybrids with magnetism was fabricated by polymerization. The obtained materials (Fe 3 O 4 /HAp/PAA/PAM) was characterized by hysteresigraph, X-Ray diffractometer (XRD), infrared spectrometer (IR), energy dispersive spectroscopy (EDS), mapping, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometer (VSM). The decontaminating performance of the nanohybrids was evaluated by adsorption methylene blue (MB). Adsorption kinetics and adsorption isotherms were employed to examine the adsorption behavior. The results showed that the adsorption process fitted the Langmuir isotherm and pseudo-second-order kinetic model and Fe 3 O 4 /HAp/PAA/ PAM displayed appreciable adsorption efficiency. The adsorption mechanism was also presumed. The removal of dye mainly attributed to polymer with multifunctional groups and the special structure of HAp. Moreover, it is facile to retrieve due to the incorporation of Fe 3 O 4 with strong magnetism. It proposed a novel route to design and fabricate multifunctional nanohybrid adsorbent for removal of dye with high capacity.
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高影响因子
Materials Today Communications
·
2022
·
IF 3.662
Asim Mushtaq,Zhe Tang,Yike Hou,Zheng Zhu,Cong Tian,Yuling Wu,Yuguang Lu,M. Zubair Iqbal,Xiangdong Kong
Theranostic nanomedicine designs integrating diagnostic and therapeutic paradigms have been achieving considerable success at clinics. However, the toxicity of nanocomposites in these designs remains a major obstacle to the success of personalized medicine. Herein, highly biocompatible iron and hydroxyapatite materials were selected to design a Fe 3 O 4 -HAp nano-theranostic system with controlled dimensions using simple solvothermal synthesis . The biocompatibility of Fe 3 O 4 -HAp magnetic hydroxyapatite nanocomposites (MHNCs) was further enhanced by Food and Drug Administration- (FDA-) approved triblock copolymers , namely, Pluronic® F-127. Indeed, polymer modification improved the drug encapsulation capacity of HAp, and 70% anti-TROP 2 was loaded onto the surface of MHNCs for intracellular targeting of breast cancer. The Fe 3 O 4 component of MHNCs possessed a high T 1 -MR imaging enhancement feature with an excellent r 1 value, demonstrating these MHNCs as capable substitutes for Gd-based toxic contrast agents. Moreover, indocyanine green (ICG-) coupled-MHNCs revealed strong absorption in the near-infrared region and produced enough temperature (75 °C), even at low (50 ug/mL) concentrations, to ablate cancerous cells upon 808 laser irradiation to induce cell toxicity and apoptosis. The promising diagnostic and photothermal therapeutic performance of these designed MHNCs make them an ideal nano-theranostic agent.
研究领域:
医学
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材料科学
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影像学
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肿瘤学
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DOI
高影响因子
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