Carboxylated magnetic microspheres (low non-specif
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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Christine
Phoenix, US
★★★★★ 3
Closing it when you have a ring.
Color: Black, Color: Black
Its a nice box but the problem i have with it is the middle piece. It does not give enough room if you have a ring that sits high like a cocktail ring. And same if you have a pendant necklace in the necklace area. You have ro really force it closed and i worry that it will put pressure on the items. It would work better without that middle piece for earrings or maybe if it were half the size. Closes fine when its empty but the minute you put a ring in the ring spot that has any kind of height you have to squeeze it shut. Its a good little box that you can put in a safe. Thats why i use it. Just to put my good jewelry in it and then secure it properly in a small house safe. Also ive already had the backs of a few earring pop off when I've opened the earring flap because it all rubs together. .
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Reviewed in the United States on February 14, 2026
G
Verified Purchase
G. M.
Battle Creek, US
★★★★★ 5
Super usefull
Color: pink
If you're in search of a stylish and functional way to organize your jewelry while on-the-go, then this pink travel jewelry organizer is definitely worth considering. With its compact design and thoughtful features, it's the perfect accessory for any traveler or jewelry lover. One of the standout features of this organizer is its size. With a compact design that can easily fit into a purse or suitcase, it's perfect for taking your jewelry with you on the go. And despite its small size, it still offers plenty of storage options - from compartments for necklaces and bracelets to slots for rings and earrings, it can hold all of your essential pieces. But beyond its size, this travel jewelry organizer is also incredibly stylish. The soft pink color adds a feminine touch, while the sleek design and gold-tone hardware give it a sophisticated look. It's the perfect accessory to carry with you on any trip or to use as a daily storage option for your jewelry. Another great feature of this organizer is its thoughtful design. The compartments and slots are all padded to protect your jewelry from scratches and damage, while the zippered closure ensures that everything stays secure and in place. Plus, the compact design means that you won't have to worry about your jewelry getting tangled or jumbled together during travel. Overall, if you're in need of a travel jewelry organizer that is both stylish and functional, this pink option is definitely worth considering. With its compact size, ample storage options, and thoughtful design features, it's a great investment that will help you keep your jewelry organized and protected while on the go.
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Reviewed in the United States on April 22, 2023
A
Verified Purchase
alessa
Bozeman, US
★★★★★ 5
Great value, great product!
I use this as a home jewelry box - I don't wear a lot of jewelry, so it fits my needs perfectly. Its pretty lightweight and would be good for travels as well. The outside is leather-like and seems to be waterproof so far. I use the first layer for jewelery and second layer to store my hairclips and pins. I've had it for a few months and it seems to be great quality and durable! Definitely a good value as well because I've seen similar jewelry boxes sold at popular retail stores for over $30.
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Reviewed in the United States on January 21, 2026
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Marie
Boise, US
★★★★★ 5
Lovely Slate Gray Jewelry Box
I just received this Slate Gray jewelry box. It's really quite lovely and just the right size for my granddaughter's vanity. I'm really excited about giving it to her, for her 12th Birthday, to hold her better jewelry. It's so nice I'm going to order another one for my other Granddaughter's Birthday.
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Reviewed in the United States on December 5, 2025
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Cathy D.
Lexington, US
★★★★★ 5
Songmics Slate Gray Travel Jewelry Box
I purchased the slate gray Songmics jewelry box for travel purposes. We take long vacations and have an upcoming 20 day cruise. I wanted a jewelry box that was compact enough to put in my carry-on bag, but still had room to hold a months worth of jewelry, especially to keep my necklaces for tangling. When this arrived, I was pleasantly surprised and the packaging was great, shipped in a sturdy box. so no damage to the jewelry box. The color is a rich gray and the 2 tier box, while small, holds a lot of jewelry. I wanted to purchase the ink black but could not justify paying twice the price of the gray one just to get it in black. It is small enough that it will fit in most any hotel/ship safe so I won't be sitting out in the room anyway. It has a strong magnetic snap that keeps the box from opening while in transit. The one negative for me is that the pierced earring card is so thick that my earrings barely go through to have enough room on the back side the slip the backs on. I may separate the double thick card, realizing it will not look as nice but will be more functional. The bottom half of the box will hold bracelets up to 1 1/4" wide. There is enough room under the earrings card to place pendants, additional earrings, etc. The necklace holder is designed to hold 5 necklaces, but I added one more by going across the top, end to end, to prevent tangling. I also placed smaller hoop earrings in the ring holder which holds them securely. This box held 7 bracelets, 2 of which were wide, 5 rings, 9 necklaces (I placed 3 in the bottom of the box, and had room for 23 pair of earrings (some placed in the ring holder and in the bottom of the bo)! I would buy this again in a heartbeat.
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Reviewed in the United States on April 10, 2025

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