SKU: 93070615331

Carboxylated magnetic microspheres (low non-specif

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Description

Carboxylated magnetic microspheres (low non-specifProduct Name Carboxylated magnetic microspheres (low non specificity) Product Overview Carboxylated Magnetic Microspheres (low non specificity) are functionalized nano or micron sized magnetic particles with abundant carboxyl functional groups introduced on the surface and a special chemical treatment to reduce the possibility of non specific adsorption. The 1um carboxylated magnetic microspheres are synthesized by core shell structure design, with

Product Name

Carboxylated magnetic microspheres (low non-specificity)

 Product Overview

Carboxylated Magnetic Microspheres (low non-specificity) are functionalized nano- or micron-sized magnetic particles with abundant carboxyl functional groups introduced on the surface and a special chemical treatment to reduce the possibility of non-specific adsorption. The 1um carboxylated magnetic microspheres are synthesized by core-shell structure design, with inner core PS spheres, outer iron tetroxide, outermost encapsulation layer, and carboxyl groups obtained by polymer modification. With low non-specific adsorption, they can be covalently coupled with peptides, proteins, antibodies, oligonucleotides and other biological ligands under the action of special chemical reagents (e.g., EDC), and are especially suitable for cell sorting, affinity chromatography and immunoassay.

Technical Parameter

Concentration: 10 mg/mL

Solvent: water

Diameter: 1um

Density of carboxyl : 1000 nmol/mg

Surface potential: -35 mV

Magnetic content: 35%-45%

Product Features

 

Low non-specific adsorption: the carboxylation of the surface of these microspheres reduces non-specific adsorption, which is particularly important for biomedical experiments that require highly specific binding . 

High carboxyl content: The high concentration of carboxyl functional groups on the surface of the microspheres facilitates the coupling of a wide range of biomolecules, such as peptides, proteins, antibodies, oligonucleotides, etc., via covalent bonds.

Superparamagnetic: The carboxylated magnetic microspheres are superparamagnetic, which allows them to be rapidly separated under an applied magnetic field, facilitating experimental manipulation.  Monodispersity and stability: the microspheres have good monodispersity and stability in water, which is conducive to the reproducibility of experiments and consistency of results.

Application Fields

 

Separation and purification of biomolecules: e.g. affinity chromatography of proteins, nucleic acids, cells, etc. 

Immunoprecipitation and immunoprecipitation: for the study of protein-protein interactions. 

Cell sorting: magnetic separation based on cell surface markers. 

Drug carriers: as part of targeted drug delivery systems. 

Bioassays: Used in sensors and diagnostic reagents to capture target molecules.

Related Information

Carboxylated 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.

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SKU: 93070615331

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Edilla
Lexington, US
★★★★★ 3
For small dog
Color: brown4, Color: brown4
It's cute for the price, but it's meant for small dogs, it's very easy for medium-sized dogs to destroy.
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Reviewed in the United States on March 10, 2026
R
Verified Purchase
Robert A.
Boise, US
★★★★★ 5
Small Pug Enjoyment For All!
Color: brown1, Color: brown1
We got this toy to replace an earlier purchase for a rope/squeak toy after finding he loved a holiday purchase by an Aunt which squeaked but was not really meant for tugging/heavy playing like he wanted too, for our half pug/schnauzer Mr. Pug. Compared to the first toy and the attempted replacement he ADORES this toy! As you can see in the above picture he has truly laid his claim to it! About the product in general though, we found it surprisingly sturdy all around, even with heavy tugging and aggressive play. The interior padding is durable it seems, and holes where the rope come out have a heavy duty padding for the target dog audience like ours in preventing him from chewing or tearing it up. The crinkly ears were also an enjoyable surprise for him, and the squeaker can move around the torso area of the toy keeping him actively looking for it when he desires it. All in all we would certainly get another toy like this in the future.
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Reviewed in the United States on January 25, 2025
T
Verified Purchase
the banquets are super nice and strong
San Leandro, US
★★★★★ 5
Perro
Color: brown1
A mi perro le encanto ese juguete, lo recomiendo
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Reviewed in the United States on March 30, 2026
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Verified Purchase
Furbabymomma
New York, US
★★★★★ 5
Dog crinkle toys
Style: Donkey&Sloth
These are great toys. They crinkle, they squeak, and have held up to all my big and little dogs tugging and chewing on them. They are quite big and my dogs love them.
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Reviewed in the United States on May 11, 2026
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Verified Purchase
Pam B
Grantham, US
★★★★★ 5
Durable, fun toy
Style: Donkey, Elephant, Cattle, Monkey, Sloth
My dogs love these toys. They make great tug toys and a toy for individual play. They are very sturdy for my agressive chewers.
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Reviewed in the United States on May 13, 2026

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