SKU: 80202663515

Fe3O4@SiO2 nanoparticle dispersion

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Description

Fe3O4@SiO2 nanoparticle dispersionProduct Name Fe3O4@SiO2 nanoparticle Product Overview Silica coated magnetic nanoparticles are a composite material consisting of a core of the magnetic material tri iron tetraoxide (Fe3O4) and a shell of silicon dioxide (SiO2). The silica coated magnetic nanoparticles are biocompatible and protect the biological activity of biological enzymes, DNA, and other biologically active substances, and can be used as a carrier for the controlled release of

Product Name

Fe3O4@SiO2 nanoparticle

Product Overview

Silica-coated magnetic nanoparticles are a composite material consisting of a core of the magnetic material tri-iron tetraoxide (Fe3O4) and a shell of silicon dioxide (SiO2). The silica-coated magnetic nanoparticles are biocompatible and protect the biological activity of biological enzymes, DNA, and other biologically active substances, and can be used as a carrier for the controlled release of these substances to enable targeted therapy of drugs. Due to their many unique physical and chemical properties, core-shell structured nanomaterials have potential applications in superhydrophobic surface coatings, chemistry, magnetism, electricity, optics, biomedicine and other fields. In addition to this, CDF can also provide core-shell structures such as magnetic iron tetraoxide encapsulated in mesoporous silicon, gold-in-silicon, silver-in-silicon, gold-in-magnetism, and gold-in-silver.

Technical Parameter 

 

Inner core diameter:-15nm

Particle diameter:0-20 nm

Appearance:Brown powder

Concentration:1-10 mg/ml

Solvent:ETOH

Product Features

Biocompatibility: The silica shell provides good biocompatibility, reducing the potential toxicity of the particles to the organism. 

Stability: The silica shell protects the inner core from oxidation and corrosion, increasing the stability of the particles in the organism. 

Easy functionalisation: the abundance of silica hydroxyl groups (Si-OH) on the surface of silica provides easy surface modification of the particles, which can be chemically linked to drugs, fluorescent markers, targeting ligands, etc. 

Good dispersibility: the silica shell helps to improve the dispersibility of the particles in aqueous and organic solvents and reduce agglomeration. 

Multifunctionality: different functional molecules can be combined to achieve a variety of biomedical functions, such as drug delivery, imaging, and therapy.

Application Fields

 

Targeted drug delivery: the silicon-coated magnetic nanoparticles can be used as a drug carrier, through the positioning of the external magnetic field, the drug will be delivered directly to the lesion site, to achieve targeted drug delivery, especially suitable for the diagnosis and treatment of specific types of cancer . 

Magnetothermal therapy: Using the heat generated by the silicon-coated magnetic nanoparticles inside the tumour cells, the heat generated by the external magnetic field can kill the tumour cells, which is a method of treating cancer in addition to surgery, chemotherapy and radiotherapy.

Magnetic Resonance Imaging (MRI) contrast agent: Due to their superparamagnetic properties, Si-encapsulated magnetic nanoparticles can be used as contrast enhancers for MRI, improving the clarity and contrast of the image.

Separation and enrichment of biomolecules: Si-encapsulated magnetic nanoparticles can be used for rapid separation and enrichment of specific molecules in biological samples, such as in proteomics research.

Biosensing: The magnetic properties of Si-encapsulated magnetic nanoparticles allow the development of novel biosensors for the detection of biomolecular interactions. 

Tissue engineering: Si-encapsulated magnetic nanoparticles can be used as bone tissue regeneration materials to promote osteogenic differentiation for tissue engineering research.

 

Related Information

Sealed, avoid light, and keep at 4¡ãC Expiry date: Six months.Please e-mail for the detailed characterizationdata.

Email:[email protected]

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SKU: 80202663515

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4.7 ★★★★★
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Surfer Bob
Grantham, US
★★★★★ 5
Really nice and unique watch
Color: Black/Black/Black
This watch really caught my eye on Amazon. Every once in awhile you order an item and it looks better in person than it does in a picture. This is one of those items. It looks really great in person! I collect mostly unique watches that look different than a normal watch. What is really unique about this watch is that it has 2 separate second hands. One that is always ticking for the time and another one that starts going with the Chronograph. Not sure I've ever seen that on another watch. Sure I've seen subdials that do this, but this is 2 full size second hands. And they look different also so they don't get confused. I've never seen this one in a store which is a shame because I think Timex has some great watches right now and I don't think a lot of people know about them.
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Reviewed in the United States on December 12, 2025
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Nelson Ehrlich
Lake Worth, US
★★★★★ 4
nice but.
So, this really is a nice watch and if you can get it on sale it's a bargain. The bracelet is junk, with hollow end links. I would recommend replacing that with some type of fabric or rubber type strap. The reason I took one star off is because the chrono function isn't the best style. If you don't plan to use it much or only plan to use it for 10 minutes or less that's fine. More than that and the minutes counter flies back to zero and starts counting again which can be confusing and the next register is the combo 24hr and chrono minutes/hours counter which isn't easy to use for timing say 30 minutes or so. The standard type chrono counters are way better by design and Timex sells another one with standard counters with neat multicolored registers for less money. Otherwise it's a solid watch comfortable to wear not too big or thick or heavy. Of course it has mineral glass for the xtl so you need to be careful or it will scratch pretty easily but for the price.....
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Reviewed in the United States on September 7, 2024
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Verified Purchase
Huusi Huudi
Grantham, US
★★★★★ 5
Value-packed chrono offers so much
I love this watch. Dial and movement are fascinating. It’s quite a show when the chrono is engaged, the timekeeping central seconds hand conyinues sweeping around, and the chrono’s central seconds hand is also sweeping. So you have two central seconds hands chasing each other around the dial when the chrono is engaged. On the retrograde subdial displays, time for a second time zone is displayed when chrono is not engaged. Elegant logo counterweight on one hand. Lots of content, complication and engagement for very little money. Highest recommendation for those interested in a watch that has a lot to offer.
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Reviewed in the United States on January 25, 2026
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Greg
New York, US
★★★★★ 5
Very nice!
Color: Stainless Steel
This is a very nice watch! Feels great!!!
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Reviewed in the United States on March 2, 2026
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Placeholder
San Leandro, US
★★★★★ 5
Very nice watch for the money!
Little heavier than I thought. Weighs about 7 oz. the band itself weighs 4 oz. I replaced it with a much lighter leather band. Much more comfortable.
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Reviewed in the United States on December 8, 2025

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