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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Nancy, kindle customer
Birmingham, US
★★★★★ 5
Amazing book about marriage
Format: Kindle
Excellent read and one every woman should read, especially if she is engaged, newly married, or her daughter is. It contains lots of marriage wisdom and encouragement from a Christian perspective that is missing in today's culture.
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J.J. Lyon
Los Angeles, US
★★★★★ 5
A Wonderful Breakdown
Format: Mass Market Paperback
I would like to mention that this is a great book, written by a greatly honored woman. Actually, my most honored author that will, more than likely, ever exist. I think it is alright for men to read this book, to better understand a small part of God's design of their wives or future wives, WHOM, also desires God's design for man and woman. If she does not, things can go bad, for the simple reason of wanting God's design. Also, to know their daughters. On a side note: there are three books (two my Elisabeth) that I think are great on the topic of God's design for the genders that should be read, but not leaned on. God should be the One we put our validation in, not a person or book. Personally, I think that this book should be read only with God, so He can hear all questions and smooth out what is not agreed with, and so it does not create any issues or expectations, and reading it should not be "known" by the spouse for the simple reason that I think it is important that spouses and future ones do not think the other is just listening to a book. Anyways, this is one amazing book pointing to God's design of woman.
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Reviewed in the United States on August 13, 2016
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SUPER REVIEWS
Houston, US
★★★★★ 5
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Format: Mass Market Paperback
This book is in my top five for women. A quick read, but so profound. This edition has very small print, my one caveat is for it to be printed in a hardback with a larger font so women over 40 can enjoy it without reading glasses. Still, absolutely amazing and such a timely word for today's confused culture.
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RC
Pawtucket, US
★★★★★ 5
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Format: Hardcover, Format: Hardcover
I have been wanting to purchase this book as a companion to our yearly advent time, and am so glad I took the plunge this year. The beautiful stories, illustrations, delicious recipes and fun activities will be such a delightful enhancement to our readings this year, and I am hoping we can start a bit early so we have time to really savor the beauty of advent in what always turns out to be a busy season. Truly a gorgeous book that was put together with great thoughtfulness, love, and a heart for the true focus of Christmas.
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★★★★★ 5
a beautiful Advent book
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This book has truly been my companion during the advent season. It has resided next to my couch, in my kitchen, by my bed, and at my crafting table. It is beautifully written and filled with ideas that will inspire rather than overwhelm, and a memoir that will bring you to tears. Lovely
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