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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Jonathan
Grantham, US
★★★★★ 5
Easy, Gentle and Convenient
Size: 1 Count (Pack of 25)
These wipes are super convenient and easy to use. On days when I am exhausted and just want to crawl into bed without doing a full skincare routine, these are what I reach for. They remove makeup, sunscreen and dirt well without leaving my skin feeling tight or dry. I really like that they contain ceramides, which helps keep my skin feeling hydrated and balanced. Perfect for those nights you are just tired or want a quick cleansing after working out. They also don’t have a scent which is a plus for me.
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Reviewed in the United States on February 26, 2026
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Verified Purchase
NanaJo
Waukegan, US
★★★★★ 5
Removes makeup quickly and conveniently without having to wash your face.
Size: 1 Count (Pack of 25)
First a little about me ... I am a 72 year old woman and I don't wear a lot of makeup. I did back in the 60's and 70's when Twiggy was a fashion icon, hot pants, white boots and London makeup was all the rage. Black and white cat eye eyeliner, long thick lashes and pale lip colors! I only wear makeup now when going out ... none at home. Covid also put a stop to daily makeup ... why wear makeup it you can't see your face!lol I like a natural look for my age. I wear a light dusting of Laura Geller's baked powder foundation or her liquid foundation. Starting with a primer, then foundation, some blush, and a natural colored lip gloss ... but no eye makeup. I am so envious 💚 of those who can wear the beautiful colored eye shadows, liners and long thick lashes!!! I unfortunately have had fibromyalgia for many years and it causes extreme dry eyes along with the medication I take for it. Any eye makeup is a waste of time for me as I will look like a raccoon 🦝 by the end of the day from rubbing my dry eyes!lol I was looking for a quick way to remove my makeup without soap and water. I live in Colorado and my skin is dry. Washing my face more than twice a day with soap & water drys my skin out. So I saw this and decided to give it a try. At first I wasn't sure if there was anything on the cloth when I pulled it from it's holder, but evidently there was because it removed all my makeup very easily with just one cloth. I did not have to apply a lot of pressure, just wiped my face softy all over. It didn't seem to dry out my skin on my face or leave a greasy feel behind either. My face even felt less dry when I woke up in the morning. I would imagine depending on how much makeup you wear or what kind, may affect how many wipes you would need. I can see it being very useful for getting rid of eye makeup, but it does say if you get it in your eyes to rinse your eyes thoroughly with water. For me it is a good buy so far. I will update as I continue using it and how my skin feels. 5 out of 5 🤩🤩🤩🤩🤩 UPDATE: I used this to remove my oil based face paint that I used for my halloween makeup this year (I was a scarecrow) and it came off very nicely. I did use 2 cloths though just to make sure I left no paint residue behind.
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Reviewed in the United States on July 13, 2023
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Verified Purchase
Mom to cutie son
Whiting, US
★★★★★ 5
Gets make up off easily!
Size: 50 Count (Pack of 1)
The take off makeup really well! I cannot believe how much makeup it takes off. My Climate makeup last and this takes it off. I was using wiped and not doing extra cleaning. My face feels awful in the morning. Using these and cleanser and my face feel good when I wake up.
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Reviewed in the United States on May 17, 2026
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denise.lpp
Lake Worth, US
★★★★★ 5
Best Makeup Remover!
Size: 50 Count (Pack of 1)
I’m in love with these cloths! I wear waterproof SPF moisturizer, foundation and mascara daily. Before discovering these cloths, removing my makeup was such a chore! Previously I had to use mineral oil to sufficiently break down the waterproof ingredients, wipe the messy oil off with a washcloth, and follow with my regular facial cleanser. Now, I only have to use 1-2 of these cloths to fully remove the products I use and follow with a cleanser! It’s so much simpler and less messy (the mineral oil would always stick around on my bathroom sink). Although these cloths cost more than the oil, they’re a time saver and I don’t put off/sleep with my makeup on anymore! They are very gentle on my skin and don’t leave any scent behind. Highly recommend these!
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Reviewed in the United States on December 19, 2025
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Verified Purchase
Patti
Dallas, US
★★★★★ 5
Clinique Clean!!
Size: 50 Count (Pack of 1)
I like this product, easy to remove from the package when using. Left my skin clean and refreshed.
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Reviewed in the United States on May 20, 2026

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