SKU: 65539952795

Aminated magnetic microspheres

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Description

Aminated magnetic microspheresProduct Name Aminated magnetic microspheres Product Overview Aminated magnetic microspheres are magnetic particles with surface modified with amino functional groups and superparamagnetic properties, which are widely used in biomedical and molecular biology research. The 1um aminated magnetic microspheres are composed of polystyrene and iron oxide nanoparticles, which are hydrophilic and biocompatible. The aminated magnetic microspheres are

Product Name

Aminated magnetic microspheres

Product Overview

Aminated magnetic microspheres are magnetic particles with surface modified with amino functional groups and superparamagnetic properties, which are widely used in biomedical and molecular biology research. The 1um aminated magnetic microspheres are composed of polystyrene and iron oxide nanoparticles, which are hydrophilic and biocompatible. The aminated magnetic microspheres are superparamagnetic, have fast magnetic response, good monodispersity, and ensure homogeneity of reaction and consistency of detection. The unique surface roughness structure and polymer modification make the aminated magnetic microspheres have high amine density, which can be covalently coupled with peptides, proteins, oligonucleotides, drug molecules, glycoproteins and other biological ligands under the action of special chemical reagents (e.g., glutaraldehyde), and can be used as a good base material for encapsulation, which is an important carrier tool in medical and biomolecular research.

 

Technical Parameter

Concentration: 10 mg/mL

Solvent: water

Diameter: ~1um

Density of amino : ~600 nmol/mg

Surface potential:~ 30 mV

Magnetic content: 35%-45%

Product Features

 

Superparamagnetism: Aminated magnetic microspheres are superparamagnetic and can be rapidly magnetised and show magnetic properties under an applied magnetic field, and then quickly lose their magnetic properties when the magnetic field is removed, facilitating manipulation and separation in biomedical applications. 

Surface Amino Functional Groups: The surface of these microspheres is rich in amino functional groups (-NH2), which can be covalently coupled with biomolecules (e.g., proteins, antibodies, oligonucleotides, etc.) via chemical cross-linking agents to enhance their functionality in biomedical applications. 

High specific surface area: Due to their nano or micron scale particle size, aminated magnetic microspheres have a high specific surface area, providing more active sites, which is suitable for immobilisation of biomolecules and catalytic reactions. 

Good biocompatibility: Aminoated magnetic microspheres are usually made of biocompatible materials that are safe to use in living organisms, reducing immune reactions and toxicity. 

Easy modification and functionalization: The surface of aminated magnetic microspheres can be modified by various chemical methods to introduce different functional groups, thus expanding their applications in biomedical fields.

Application Fields

Protein Separation and Purification: Aminated magnetic microspheres can be used for the separation and purification of proteins. By forming covalent bonds with specific amino acid residues of proteins (e.g. lysine), efficient separation of proteins is achieved. 

Cell Separation: These microspheres are also used in cell separation, where magnetic separation of cells is achieved by specific binding to molecules on the cell surface. 

Enzyme immobilisation: Amino magnetic microspheres can be used for the immobilisation of enzymes, which are covalently bonded to the surface of the microspheres, improving the stability and reusability of the enzymes. 

Immunoassay: In immunoassay, the aminated magnetic microspheres can be used as the material for the preparation of immunomagnetic beads, which can be used for immunoassay and analysis through covalent coupling with antibodies or antigens. 

Drug delivery: Aminoated magnetic microspheres can be used as drug carriers to achieve targeted drug delivery through surface modification. Under the action of an applied magnetic field, the microspheres can be guided to the diseased area, improving the efficacy of the drug and reducing side effects.

Related Information

Aminated magnetic microspheres have good hydrophilicity and monodispersity. Due to the high magnetic content, the microsphere is easy to precipitate at the bottom after a long time of placement, and can be suspended again after a short time of ultrasonic treatment or vibration before use. Sealed, avoid light, and keep at 4¡ãC Expiry date: Six months before unsealing.

E-mail:[email protected]


 

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SKU: 65539952795

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Joy
Fort Morgan, US
★★★★★ 5
From travel chaos to an efficient and methodical process
Color: Haze Blue+Dusty Blue, Size: Large
This organizer was meticulously developed for holding passports, IDs, credit cards, money, tickets, ink pen, car key, and etc. in a compact, convenient, and orderly manner. I also placed Lysol wipes in the exterior front pocket and zipped my cell phone into the exterior back pocket. It is easy to open and retrieve the items needed for every step of my travels. No more digging for travel essentials in a variety of zipped pockets. Travel chaos is now an efficient and methodical process.
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Reviewed in the United States on February 19, 2026
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RONALD O. NCCA
San Leandro, US
★★★★★ 5
Exelente.
Color: Gunmetal Grey, Size: Large
Exelente producto estoy muy conforme.
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Reviewed in the United States on May 5, 2026
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C. Weaver
Battle Creek, US
★★★★★ 4
Light, organized, security concern about strap
Color: Black+Gunmetal Grey, Size: Large, Color: Black+Gunmetal Grey, Size: Large
I used this passport holder on a recent multi passport trip and overall it does what it claims without feeling bulky. The nylon material is lightweight but reasonably sturdy and holds its shape well in a backpack or day bag. It does not feel flimsy, and still looks new with the stitching and zippers holding up well Organization is the strong point. On one side I was able to fit three passports comfortably, though the pockets are not a uniform depth. The pockets are loose enough you can also double up if needed. A fourth passport fits on the opposite side along with several credit cards. There are zippered pouches inside and outside useful for cash and a phone, plus open access pockets that work well for boarding passes or documents you need to grab quickly. There is also a small storage area above the credit card slots that turned out to be useful, though listed for SSD storage, I stored a couple of CR2032 batteries there for Bluetooth trackers. The RFID blocking is a basic but expected feature and worked as intended. Nothing about the layout forces cards or passports to bend, which I appreciate since I tend to keep this packed while moving through airports. The shoulder strap is my main criticism. It is thin and functional but could be cut fairly easily. I would prefer to see embedded wire or a more reinforced strap for better security in crowded areas. The handle is fine for short carries, but the strap is what you rely on most of the time. The included Bluetooth tracker works well enough for proximity alerts, but it is not compatible with Apple Find My. I ended up removing it and using an AirTag instead, which fit without issue and gave better ecosystem integration for me. Overall, this is a practical, lightweight travel organizer that handles multiple passports and documents well. The layout is thoughtful and flexible, and the build quality matches the price point. The strap and tracker limitations are worth noting, but the core function as a family passport holder is solid.
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Reviewed in the United States on January 11, 2026
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Patricia A. Roy
West Palm Beach, US
★★★★★ 3
Nice for travel
Color: Black, Size: Large
No fashion statement here but useable for my trip.
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Reviewed in the United States on May 8, 2026
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berenice lopez
Boise, US
★★★★★ 5
Bere
Color: Gunmetal Grey, Size: Large
Tiene buena capacidad, es ligero y cómodo ideal para cuando sales de viaje puedes guardar lo esencial
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Reviewed in the United States on April 21, 2026

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