SKU: 46497498059

Water-soluble yellow fluorescence carbon quantum dot powder

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Description

Water-soluble yellow fluorescence carbon quantum dot powderProduct Name Name: Water soluble yellow fluorescence carbon quantum dot dispersion Product Overview carbon quantum dotsCQDs are quasi spherical amorphous carbon nanocrystals composed of sp2 and sp3 cluster carbon structures, surrounded by abundant oxygen containing functional groups such as hydroxyl, carbonyl, carboxyl, etc. Their main constituent elements are C, H, O, and N. The luminescence mechanism of CQDs can be mainly attributed to these three

Product Name

Name:Water-soluble yellow fluorescence carbon quantum dot dispersion

Product Overview

carbon quantum dotsCQDs are quasi spherical amorphous carbon nanocrystals composed of sp2 and sp3 cluster carbon structures, surrounded by abundant oxygen-containing functional groups such as hydroxyl, carbonyl, carboxyl, etc. Their main constituent elements are C, H, O, and N. The luminescence mechanism of CQDs can be mainly attributed to these three types: quantum confinement effect, surface state luminescence, and molecular state luminescence. Carbon quantum dots are composed of C=C and C-C bond cores that are prone to π→π * transitions, as well as various organic molecular functional groups distributed on the surface that are prone to n →π * transitions. The structure and composition of carbon quantum dots result in strong absorption of short wavelength light waves in the ultraviolet range (260-320 nm), accompanied by low-intensity absorption of visible light (400-710 nm).

The preparation methods of carbon quantum dots are divided into top-down method and top-down method. The top-down method is to cut large-sized carbon structural materials through physical or chemical methods, mainly including arc discharge, laser ablation, ultrasonic treatment, and chemical oxidation. The bottom-up approach is to aggregate small molecule precursors into large-sized CQDs through chemical reactions, mainly including water/solvothermal, template method, microwave-assisted, and solid-phase methods.

Technical Parameter

Concentration:0.1 mg/mL:.5 mg/ml: mg/ml

Granularity:2-5 nm

Solvent:Water

Appearance:Yellow dispersion

Product Features

1. Good water solubility: The surface of carbon quantum dots usually contains abundant hydrophilic groups, such as hydroxyl and carboxyl groups, which enable them to be uniformly dispersed in the aqueous phase, facilitating their applications in biological systems and aqueous environments.

2. Low toxicity and good biocompatibility: Carbon quantum dots have low toxicity to organisms and do not cause significant cell damage or immune reactions.

3. High chemical stability: able to maintain stable structure and performance over a wide range of pH values, temperature conditions, and chemical environments.

4. Easy to functionalize: The abundant functional groups on the surface provide active sites for further chemical modification, which can connect various biomolecules, drug molecules, or other functional groups.

5. Excellent optical performance: It has strong fluorescence emission and high fluorescence quantum yield. Its fluorescence emission wavelength can be adjusted by changing the size, surface state, or doping.

Application Fields

1. Biological imaging: Carbon quantum dots have good biocompatibility and low toxicity, and can enter the interior of cells without producing significant cytotoxicity. For example, carbon quantum dots modified with specific antibodies can specifically label antigens on the surface of cancer cells, enabling high-resolution imaging of cancer cells and aiding in early diagnosis of cancer.

2. Biological detection: Due to the influence of metal ions on the fluorescence of carbon quantum dots, they can be used to detect metal ions in the environment or biological samples. For example, when mercury ions are present, the fluorescence of carbon quantum dots will be quenched, thereby achieving sensitive detection of mercury ions. At the same time, it can interact with specific biomolecules (such as proteins, nucleic acids, glucose, etc.) to cause fluorescence changes, which is used for quantitative detection of biomolecules. For example, by binding to aptamers, carbon quantum dots can specifically recognize and detect trace biomarkers in the blood, such as tumor markers.

3. Photocatalytic water splitting for hydrogen production: Composite with semiconductor materials to promote the separation and transfer of photogenerated charges, improving the efficiency of photocatalytic water splitting for hydrogen production. For example, loading carbon quantum dots on the surface of titanium dioxide significantly enhances its photocatalytic activity under visible light and increases hydrogen production.

4. Light emitting devices: Used as a light emitting layer or auxiliary layer in LEDs to improve device performance. For example, carbon quantum dot based LEDs can achieve high brightness and wide color gamut luminescence.

5. Drug carrier: Using its surface functional groups to load drug molecules and achieving controlled drug release through stimulus response (such as pH, temperature, light, etc.). For example, in acidic environments (such as the microenvironment of tumor tissue), carbon quantum dot drug delivery systems release drugs to achieve targeted therapy for tumors.

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 46497498059

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JS
Louisville, US
★★★★★ 4
Too lightweight and flimsy, but it does the job
Size: 72"W x 72"L (Pack of 1), Color: 1a. Clear
This shower liner works as expected, but it is a bit lightweight, and will drift around in the shower. I will look at getting a more heavy duty one in the future. This one has the 3 magnets, and that isn't enough. I would recommend getting one with double the magnets and a thicker plastic. I went cheap and regret it slightly, but at least these things are made to be disposable. Other than that, the durability seems good, and it looks and feels like you would expect, but as stated, the plastic is flimsy and flutters around. Seems fairly mold resistant vs other liners I've used from the store (like cheaper Walmart ones etc).
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Reviewed in the United States on March 8, 2026
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Verified Purchase
LF
Natrona Heights, US
★★★★★ 5
Simple Shower Liner That Works Well
Color: 1a. Clear, Size: 72"W x 72"L (Pack of 1)
This clear shower curtain liner does exactly what it’s supposed to do. The material feels flexible without being overly thin or flimsy, and it hangs nicely once installed. The three magnets at the bottom help keep the liner in place and reduce the amount of movement while showering, especially in tubs with metal sides. The reinforced top holes also seem durable enough to handle regular opening and closing without tearing. The clear design keeps the bathroom feeling brighter and more open compared to opaque liners. It’s easy to wipe down and clean as needed. Overall, this is a solid basic shower liner with good durability and useful magnetic weighting.
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Reviewed in the United States on May 14, 2026
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LEE CEE DEE
Cuba, US
★★★★★ 5
Perfect one!
Color: 1a. Clear, Size: 72"W x 72"L (Pack of 1)
Awesome shower liner for a great price! This one is sturdy, washable, hangs nice, and easy to use. I like mine to be clear, so this one was perfect for me. It lets a lot of the bathroom light in. The clear color works for me. It has magnets at the bottom and does not blow in so much while you are showering. You can replace whenever you want or even wash it. The price is great, so it is up to you. Good purchase!
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Reviewed in the United States on April 18, 2026
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Kendra
Draper, US
★★★★★ 5
Great quality for an even better price!
Color: 1a. Clear, Size: 72"W x 72"L (Pack of 1)
Was in need of a new one and this came quick and was super adorable. Great quality for the price, easy to use, water resistant, and easy to wipe/wash. Good thickness to it.
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Reviewed in the United States on May 14, 2026
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patti
Alexandria, US
★★★★★ 4
Durable curtain liner!
Color: 1a. Clear, Size: 72"W x 72"L (Pack of 1)
Very good quality with magnets at the bottom. I would recommend highly
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Reviewed in the United States on May 27, 2026

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