SKU: 21320402713

Carboxyl Graphene quantum dots

Sale price$96.43 Regular price$107.14
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Description

Carboxyl Graphene quantum dotsProduct Name Name: Carboxyl Graphene quantum dots Product Overview Graphene quantum dots (GQDs) are nanoscale fragments of graphene with unique physical and chemical properties, such as quantum size effects, edge effects, etc. By specific synthesis methods, the size, shape, and luminescent properties of GQDs can be controlled. At present, Xianfeng Nano's available quantum dots are divided into graphene oxide quantum dots, graphene quantum dots,

Product Name

Name: Carboxyl Graphene quantum dots

Product Overview

Graphene quantum dots (GQDs) are nanoscale fragments of graphene with unique physical and chemical properties, such as quantum size effects, edge effects, etc. By specific synthesis methods, the size, shape, and luminescent properties of GQDs can be controlled. At present, Xianfeng Nano's available quantum dots are divided into graphene oxide quantum dots, graphene quantum dots, semiconductor quantum dots, etc. Customers can choose according to their experimental needs. The preparation methods of graphene quantum dots on sale are divided into bottom-up and top-down, with different colors of luminescence available, such as green light, blue light, red light, and white light. Meanwhile, graphene quantum dots with different functional groups can be selected, which is also helpful for later modification coupling. In addition, nitrogen doped and boron doped graphene quantum dots can be selected. At present, the applications of graphene quantum dots are mostly focused on fluorescence imaging, nanoadditives, antibacterial, and biotoxicity.


Technical Parameter

 

Form: Light yellow particles

Purity:~80%

Note: The water solubility and fluorescence intensity of the powder sample are slightly lower than those of the corresponding solution. Please consult before purchasing.

 

Product Features

 

Quantum effects: Graphene quantum dots exhibit significant quantum confinement and edge effects due to their extremely small size (usually less than 100 nanometers, and can even reach below 10 nanometers). These effects endow CGQDs with unique optical, electrical, and chemical properties.

Good water solubility: Due to the presence of carboxyl groups on the surface, CGQDs have good water solubility, making them easy to disperse and process in aqueous solutions.

Biocompatibility: Carboxylation modification enhances the biocompatibility of graphene quantum dots, making them more suitable for biomedical applications.

Chemical reactivity: The presence of carboxyl groups endows CGQDs with high chemical reactivity, allowing them to connect or modify with other molecules or materials through chemical reactions.


Application Fields

 

Biological imaging: CGQDs have excellent fluorescence performance and biocompatibility, and are therefore widely used in fields such as cell imaging, biomarkers, and tissue imaging.

Optoelectronic devices: With their unique optical and electrical properties, CGQDs have shown potential application value in optoelectronic devices such as light-emitting diodes (LEDs), solar cells, and other fields.

Sensors: The high sensitivity and rapid response capability of CGQDs make them ideal materials for making biosensors and chemical sensors.


Related Information

This product has low fluorescence intensity, please consult before purchase.

Please e-mail for the detailed characterization data.

E-mail:[email protected]

 

Shipping Notes
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Exchange/Return Notes
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SKU: 21320402713

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Xia
Waukegan, US
★★★★★ 5
Fast, Accurate, and Fancy - The Ultimate Thermometer Experience!
I recently purchased this thermometer, and I am beyond impressed with its performance, design, and user experience. The key features that set it apart are its speed, accuracy, and the inclusion of a fancy OLED display. The very first thing I noticed was how fast this thermometer delivers accurate readings. Within mere seconds, I had a precise temperature reading, eliminating the need for any guesswork. I've tested it on multiple occasions, and it consistently provided reliable results. One aspect that truly stands out is the fancy OLED display. Not only is it aesthetically pleasing, but it also enhances the user experience by providing clear and easy-to-read measurements. The display is bright and visible even in low light conditions, making it incredibly convenient for those late-night fever checks. In summary, this thermometer is a fantastic investment for anyone in need of a fast, accurate, and visually appealing device. Its remarkable speed, precision, and the added touch of a fancy OLED display make it a must-have in any household.
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Reviewed in the United States on May 2, 2023
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Darrin Valdez
Alexandria, US
★★★★★ 5
Best Thermometer by far.
Size: 6.5"
What a fantastic product. You would not be unsatisfied buying this Thermometer. It’s quick and accurate. I’ve been using it for about a year now and completely recommend it for pros and amateurs.
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Reviewed in the United States on May 13, 2026
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Verified Purchase
Sandalls71
Carnegie, US
★★★★★ 5
Very handy and capable thermometer for measuring internal temps of cooking meat
Size: 6.5"
A very-fast (and I think accurate) thermometer for tracking internal temps of cooking meat to insure doneness and that your meat is cooked to a safe temp. The sharp point of the probe slides into dense meats with ease. I have found this a very helpful accessory for frying and slow-cooking meats. It's display is VERY easy to read, even outdoors in bright light, or indoors in dimmer light. Haven't had it long enough to comment on battery life, though in two months, and almost daily use, no sign yet of needing a recharge.
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Reviewed in the United States on March 24, 2026
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Stereoman
Natrona Heights, US
★★★★★ 4
High quality, fast reading, easy to use
This is a very nice product. It works as advertised. It appears to be reasonably well made too. I'd give it 5 stars, but I have a few gripes that force me to subtract 1 star: 1) Price. While it appears to be pretty well made and is quite attractive in appearance, it doesn't quite have the feel and heft of a $109 gadget. It is at least twice the price of any other pro-level, instant-read thermometer available on Amazon. Hopefully it will provide years of accurate, durable, reliable use, befitting of its hefty price tag. 2) The screw on the battery compartment cover gave me fits. It took a little more elbow grease than I expected to get it to turn, making me more than a bit concerned that I might strip the screw. 3) The "Careful it's sharp" warning label affixed to the probe itself was practically *glued* on. I had to carefully use a razor blade to get it off, and even then, there was a lot of residual adhesive and bits of the label stuck to the probe--and under my thumbnail too! I had to take out my Goo Gone adhesive remover to clean the probe of the adhesive and leftover bits of label, and also to extract the crap out from under my thumbnail...these are NOT steps I wanted or needed to take to put this thing into service! Jeez! Anyway, I'll update this review after I get a few months of use out of the Typhur InstaProbe.
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Reviewed in the United States on May 28, 2023
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Georg Norwood jr
Los Angeles, US
★★★★★ 5
Well worth the money
Size: 6.5"
Bad Ass! Finally a meat probe that actually works well and fast, it reads instantly and is so easy to read the screen even in the sun. All the other ones I bought never lasted and this one is tuff as nails and has already out lasted all the other ones combined. This is proof of you get what you pay for! The one thing you gotta watch out for is the probe can read the the heat that rises from the bottom of the grill as you move it towards the meat you wanna check because it reads that quick and that’s not a negative comment, just letting you know! Go get ya one!
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Reviewed in the United States on April 7, 2026

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