SKU: 50017221194

Water-soluble red fluorescence carbon quantum dot powder XF346

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Description

Water-soluble red fluorescence carbon quantum dot powder XF346Product Name Name: Water soluble red fluorescence carbon quantum dot powder Product Overview carbon quantum dots CQDs 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:

Product Name

 

Name:Water-soluble red fluorescence carbon quantum dot powder


Product Overview

 carbon quantum dots CQDs 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:0.05 mg/mL:.1 mg/ml:.5 mg/ml

Granularity:2-5 nm

Solvent:Water

Appearance:Fuchsia 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: 50017221194

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4.2 ★★★★★
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Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 5
Good fit
Both filters fit well on my 2019 Honda CRV. I was able to replace without struggle. Did it on my own first time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
D
Verified Purchase
delia Richardson
Pawtucket, US
★★★★★ 5
Excellent quality
Size: 2023-26 CRV 1.5L Gas
Fit my Honda CRV perfect
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Reviewed in the United States on May 21, 2026
N
NA
Birmingham, US
★★★★★ 5
Great Value, Cost-Effective, Installs in Minutes
Size: 2023-26 CRV 1.5L Gas, Size: 2023-26 CRV 1.5L Gas
This air filter set ended up being a great value and a convenient all-in-one solution for routine maintenance. What stood out right away is how closely these match OEM quality in terms of fit and overall design. Both the engine and cabin filters dropped into place without any issues, and installation was quick and straightforward. It’s the kind of swap that can be done in a short amount of time without needing any special tools, which is always a plus. I also really like that this kit includes both filters together. Since it’s generally best to replace them at the same time, having everything bundled eliminates the need to search for separate parts, compare options, or deal with multiple orders and shipping times. It makes the whole process much more efficient. In terms of performance, I did notice a slight improvement in fuel economy during my regular commute after installation. It’s not a dramatic change, but it’s a nice added benefit and a good indication that the filters are doing their job effectively. Overall build quality seems solid, and everything feels comparable to what you’d expect from a factory replacement. For the price, this is an excellent value and a practical choice for keeping up with regular vehicle maintenance. I’ve been very satisfied with this set so far and would definitely consider purchasing it again when it’s time for the next replacement.
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Reviewed in the United States on April 18, 2026
E
El Floor-eda
Belleville, US
★★★★★ 4
Professional-Grade Filtration for a Factory-Fresh Drive
Size: 2023-26 CRV 1.5L Gas
If you have a newer 1.5L Civic or CR-V, you know that keeping your engine breathing clean air is the best way to maintain fuel efficiency and long-term reliability. I picked up this Engine and Cabin Air Filter Set for a routine maintenance refresh, and the fit and material quality are indistinguishable from the factory components. It’s a high-quality, "all-in-one" solution that saves a trip to the dealership and keeps your cabin air crisp. Why this filter set is a standout for 1.5L Honda owners: Precise "Lock-Down" Fit (17220-64A-A00): The engine air filter is a perfect drop-in for the 2022–2026 Civic and 2023–2026 CR-V 1.5L gas models. The rubber gasket provides a tight, airtight seal in the airbox, ensuring that no dust or grit bypasses the filter. High-Efficiency H13 Cabin Filtration: The cabin filter (80291-T5R-A01) is noticeably more substantial than some budget options. It does an excellent job of scrubbing out pollen, road dust, and exhaust odors, which is essential if you spend a lot of time on the road or deal with high-humidity environments. Rugged, Deep-Pleat Construction: You can feel the quality in the filter media. The engine filter has consistent, deep pleats that maximize surface area for better airflow, while the cabin filter feels sturdy enough to handle high-velocity AC settings without vibrating or whistling. Direct OEM-Spec Replacement: These are true 1:1 replacements for the factory part numbers. No trimming or "making it fit"—they slide into their respective housings exactly as they should, providing a professional-level service in under 15 minutes. Outstanding Multi-Pack Value: Buying this set is a fraction of the cost of a dealership service. It’s an inexpensive bit of insurance for your engine’s intake system and your own respiratory comfort. ⚠️ Critical Fitment Note: This set is specifically engineered for the 1.5L Gas engines. If you are driving a 2.0L or a Hybrid model, the airbox dimensions are different, so double-check your engine specs before ordering to ensure a 100% compatible fit. Installation Tip: When swapping the cabin filter, look for the "Air Flow" arrow on the side of the filter frame. Ensure it is pointing downward (toward the floor) to match the factory airflow direction. For the engine filter, give the inside of the airbox a quick wipe with a clean microfiber cloth before dropping the new one in to ensure a perfectly clean start.
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Reviewed in the United States on March 30, 2026
C
Cubelodyte
West Palm Beach, US
★★★★★ 5
2 for 1. Great deal over buying separately.
Size: 2023-26 CRV 1.5L Gas, Size: 2023-26 CRV 1.5L Gas
At first, I thought this was an average priced item. What I didn't realize is that my year old 2025 CR-V has TWO filters. The normal Panel Air Filter found under the hood and a Cabin Air Filter secreted away behind the glove compartment. The Pane Air Filter alone generally runs from $19.99 to $35.99. Cabin Air Filter runs a little lower in average price but the 2 combined would be nearly double the cost of this kit ($26.99 at time of order). FIT: • These filters fit snugly. Just like the OEM versions. Recommendation: Verify that you have the correct year/model CR-V. These will not fit the Hybrid. VALUE • Great price for both filters. CONCLUSION I don't think I can beat the price of these 2 filters together in a set. I live in an area where Spring tree pollen is often as much as 10X what is generally consider high. Changing filters regularly is a must. I certainly recommend this set for quality and value.
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Reviewed in the United States on April 6, 2026

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