SKU: 28956531406

Hydroxy Graphene quantum dots

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Description

Hydroxy 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: Colorless solution

Purity:~80%

Concentration: 1mg/ml

Synthesis method: Organic synthesis, solution is acidic

Solvent: Water

Product Features

Uniform size: The size of hydroxylated graphene quantum dots is usually between 1-10 nanometers, and their distribution is relatively uniform, which provides a basis for their application at the nanoscale.

High dispersibility: Due to the abundant hydroxyl functional groups on the surface, hydroxyl functionalized graphene quantum dots exhibit good dispersibility in aqueous solutions and other solvents.

Rich reactive sites: Hydroxyl functional groups provide abundant reactive sites for hydroxylated graphene quantum dots, making them easy to connect or modify with other molecules or materials through chemical reactions.

Excellent optical properties: Hydroxyfossilized graphene quantum dots have efficient fluorescence properties, high fluorescence intensity, and long fluorescence lifetime, which makes them potentially valuable in fields such as biological imaging.

Good stability: Hydroxyfossilized graphene quantum dots exhibit excellent stability in extreme environments such as high temperature, acidity, and alkalinity.


Application Fields

 

Biomedical science:

Biological imaging: The high fluorescence intensity and long lifetime of hydroxylated graphene quantum dots make them a powerful tool for biological imaging, which can be used for cell imaging, tissue imaging, and more.

Drug delivery: The hydroxyl functional groups on its surface can bind with biomolecules to achieve targeted drug delivery, improve therapeutic efficacy, and reduce side effects.

Biosensing: Hydroxyfossilized graphene quantum dots can be used to monitor the interactions of biomolecules and dynamic processes within cells through mechanisms such as fluorescence resonance energy transfer.

Energy sector:

Solar cells: Hydroxygraphene quantum dots are used as one of the key materials for solar cells due to their excellent electronic transport properties and chemical stability.

Fuel cell: In fuel cells, hydroxylated graphene quantum dots can serve as catalyst carriers or electrode materials to improve the performance and stability of fuel cells.

Lithium ion batteries: Their unique two-dimensional structure and large specific surface area contribute to improving the energy density and cycling stability of lithium-ion batteries.

Environmental Science:

Water treatment: Hydroxyfossilized graphene quantum dots can be used to remove pollutants and heavy metal ions from water, achieving water purification.

Air purification: In the field of air purification, hydroxylated graphene quantum dots have also shown potential application value.

Materials Science:

As a catalyst carrier, hydroxylated graphene quantum dots can serve as carriers for various catalysts, enhancing their activity and stability.

Composite material preparation: By combining with other materials, new materials with special properties can be prepared.

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 28956531406

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D
Doodlebugs
Dallas, US
★★★★★ 3
Sadly, I found the tips and the examples in this lecture to be very simplistic and uninspiring.
Format: Audiobook
I expected a professional storyteller to be able to keep my interest but I found the presentation to be quite boring. I got nothing out of it that I didn’t already know from just being an avid reader. It felt like a high school lecture. Sigh!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 15, 2019
E
Emilia Taneva
Omaha, US
★★★★★ 5
Great course on how to improve your storytelling abilities
Format: Audiobook
Storytelling is a great way to get a point across, and most of us digest information through stories. But when it comes time to tell a story, most of us don't have the skills to make the story engaging or impactful. That's where this course on storytelling comes in. You'll get good pointers on vocabulary, body language, tone, along with deeper pointers about how to shape the view of the story and how to refine its characters. It's all very detailed but it's all very interesting and well worth it. This course will help you see how useful storytelling can be in your personal and professional life, especially if you're in a field where you have to do a lot of public speaking.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 21, 2021
M
MarieS
Waukegan, US
★★★★★ 5
Excellent book!
Format: Audiobook
Excellent book!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2019
J
Verified Purchase
John
New York, US
★★★★★ 5
This book will make a difference in your presentation.
Format: Paperback
If you rely on Powerpoint-like presentation in your work, get Cliff Atkinson's Beyond Bullet Points. I had determined that improving my company's presentations had potentially very high returns so I started poking around the net and Amazon for resources to help. At first, I struck out with books that were supposed to improve presentations, but ended up being guides on technically how to use Powerpoint. That was NOT what I was looking for. Beyond Bullet Points is very different. It is a philosophy about creating presentations whose purpose is to communicate a story, not dump information. Frankly, it was not intuitive for me so I had to decide to just trust that it would work. When I was about ¾ finished, I started to really "feel" what I was doing. And, to my surprise, the most unlikely people really liked the result. In a world where most business and how-to books are nothing more that restating what you already know (or, what you know isn't true), this one is an exception. I highly recommend it!
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Reviewed in the United States on October 19, 2005
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C. Tucker
Massapequa, US
★★★★★ 5
Presentations with the audience in mind
Format: Paperback
I bought this hoping it would be a guide to creating Big-3 Consulting-style slides with fancy diagrams and eye-catching graphic design. That is not what this book is. Instead, this book is about how to tell a story with slides, using the framework of a five act drama. With this method forcing you to focus on who your audience is, what they need to know, and how much time you have to tell them (as opposed to trying to shoehorn everything you know about a subject into your pitch) you end up with a presentation that finishes on time for intelligent questions from an engaged audience. Since buying the book I have given several well-received presentations using precisely that technique. With no words on screen there is no temptation to just read the bullet points, and the audience cannot think ahead of you and must instead listen to what you're saying. You have to know your material to use this method, but when you succeed your audience will be impressed with your knowledge of the subject matter. (If you're working in a group project and want to Blue Falcon a non-contributing teammate, try giving them a few of these slides to speak to.) The recommended slide format is one picture and one headline per slide, with no bullet points at all. The book suggests creating Notes Pages with an outline of your talk as a handout, since the slides themselves don't stand alone. (And that's a good thing--visual aids are supposed to *augment* the presentation, not *be* the presentation.) In conclusion, this book might not be for everyone, but it was exactly what I needed.
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Reviewed in the United States on June 15, 2018

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