I. [Product Description]
This product consists of 20nm PEG-COOH modified Fe₃O₄ magnetic nanoparticles, which possess both superparamagnetism and surface carboxyl activation properties. It is suitable for organic intermediate synthesis, catalyst immobilization, and functional material preparation. The PEG-COOH modification layer significantly enhances the dispersion stability, and the surface carboxyl groups support efficient chemical coupling, providing an ideal carrier platform for multi-field research.

II. [Product Details]
【Appearance】Black magnetic nanoparticle suspension (solvent is optional), particle size 20nm±3nm (detected by DLS)
【Stability】Store at 4°C for 12 months, avoid strong acid/alkali environments
【Solvent】Aqueous phase system (pH 6-8), polar solvents such as ethanol and DMF
【Molecular Weight】PEG segment: 2000/3400/5000 Da (±5% deviation), customization from 200-20000 Da is supported
【Storage Conditions】Store at 4°C in the dark, and freezing is strictly prohibited (to prevent magnetic core aggregation)
▪ Note: ▶ Before opening the bottle, equilibrate to room temperature and perform ultrasonic dispersion for 5 minutes. Low adsorption materials must be used for centrifuge tube operations!

III. [Application Fields]
1. Magnetic immobilization carrier for noble metal catalysts in heterogeneous catalytic systems
2. Magnetic-responsive separation and purification of biological macromolecules such as proteins/nucleic acids
3. Interface modification element for functionalized nanocomposites
4. Building unit for magnetic-guided assembly in microfluidic chips
5. Magnetic functional additive for intelligent responsive coating materials

Remark: The products sold by our company are only used for scientific research and cannot be used for human experiments or human treatment.

Chongqing Yusi Pharmaceutical Technology Co., Ltd. operates based on an integrated model of independent R & D, production, and sales, providing professional scientific research reagents for university scientific research experiments. Compared with similar products on the market, our company's products have obvious price advantages. In addition, we also offer professional product customization services.

If you need other products, please contact us:
Contact Information:
Landline: 023-62795528
Customer Service Hotline: 18896157519 丨 QQ: 3354316092
                                           19112925095 丨 QQ: 3012135199

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