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One-Step Preparation Method and Rapid Detection Implementation Scheme for Simple Magnetic Tagging Materials

التفاصيل البيبلوغرافية
العنوان: One-Step Preparation Method and Rapid Detection Implementation Scheme for Simple Magnetic Tagging Materials
المؤلفون: Xianxiao Song, Weiting Ma, Ping Song, Hongying Wang
المصدر: Magnetochemistry, Vol 10, Iss 7, p 44 (2024)
بيانات النشر: MDPI AG, 2024.
سنة النشر: 2024
المجموعة: LCC:Chemistry
مصطلحات موضوعية: single-step approach, magnetic labeling, Fe3O4 nanoparticles, PEGylation processes, aqueous stability, rapid detection, Chemistry, QD1-999
الوصف: With the widespread application of tagging materials, existing chemical tagging materials exhibit limitations in stability and detection under field conditions. This study introduces a novel magnetic detection scheme. Hydrophilic material-modified Fe3O4 nanoparticles (COOH-PEG@Fe3O4 NPs) were synthesized using the co-precipitation technique. The content of Fe3O4 nanoparticles in the magnetic tagging liquid can reach up to 10 wt% and remain stable in an aqueous phase system for seven days. This research details the preparation process, the characterization methods (IR, 1HNMR, EDX, XRD, SEM, TEM, VSM, DLS), and the performance effects of the materials in magnetic tagging. Experimental results indicate that COOH-PEG@Fe3O4 NPs exhibit high remanence intensity (Br = 1.75 emu/g) and considerable stability, making it possible to quickly detect tagged liquids in the field using portable flux meters and optical pump magnetometers. This study provides new insights into the design and application of magnetic tagging materials, making it particularly suitable for long-term tagging and convenient detection in field scenarios.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 10070044
2312-7481
Relation: https://www.mdpi.com/2312-7481/10/7/44; https://doaj.org/toc/2312-7481
DOI: 10.3390/magnetochemistry10070044
URL الوصول: https://doaj.org/article/44d657778b4c4b14b55bc895e4deed36
رقم الأكسشن: edsdoj.44d657778b4c4b14b55bc895e4deed36
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:10070044
23127481
DOI:10.3390/magnetochemistry10070044