Q-Graphene - New Family of Nanoscale Carbon Materials for Biomedical and Energy Storage Applications by Graphene Supermarket

Topics Covered

Background
Introduction
Applications of Q-Graphene from Graphene Supermarket
Q-Graphene - A Valuable Addition to Biomedical Nanomaterials
Properties of Q-Graphene

Background

The goal of Graphene Supermarket is to provide laboratory supplies for graphene community. At Graphene Supermarket, our philosophy is to offer quality products, hassle-free shopping, easy order tracking, and fast delivery. Graphene Supermarket has straightforward pricing, online shipping quote and checkout. Graphene Supermarket has no minimum order requirement for your convenience.

Products include:

Introduction

Graphene Supermarket announces the latest addition to its family of nanoscale carbon materials, Q-Graphene™. This nanomaterial consists of hollow, porous, multi-wall carbon nanospheres or polyhedral structures with a narrow size distribution and an average particle size of approximately 80 nm and an average aspect ratio close to 7:5. Such structures are also referred to as carbon Q-dots or nanoonions, which are close relatives of fullerenes.

Typical TEM images of Q-graphene

Applications of Q-Graphene from Graphene Supermarket

Q-Graphene™ is expected to find wide use in multiple practical applications. Q-Graphene™ is perfect for light-weight composite materials required in space and aircraft design. Furthermore, Q-Graphene™ is an attractive material for the next generation of thin film batteries and supercapacitors. One advantage of the carbon onion-based supercapacitors is their outstanding discharge rate, i.e., the time period during which the stored energy can be released. Carbon onion-based supercapacitors can be employed as nanoscale energy storage elements incorporated directly on a chip.

In addition, high-volume 3D spheres of Q-Graphene™ can serve as an inert support substrate for catalysis applications as reagents can be trapped both on the surface and inside of the carbon cage.

Q-Graphene - A Valuable Addition to Biomedical Nanomaterials

Owing to its true nanoscale size, Q-Graphene™ is a valuable addition to biomedical nanomaterials. The use of traditional semiconductor nanoparticles in biology and medicine is hindered by concerns over their toxicity and potential environmental hazard. In contrast, carbon nanospheres, such as Q-Graphene™, are expected to have low toxicity and few significant side effects.

Because of its low toxicity, there are numerous opportunities for the Q-Graphene™ to be used in biology and medicine. The quantum dots made of chemically modified carbon are less toxic than the conventional CdSe/ZnS quantum dots and they possess superior performance as fluorescence imaging agents. Due to their low toxicity, the carbon nanoonions can also be used for the intercellular drug delivery vehicles of membrane-impermeable molecules. Carbon nanospheres have been demonstrated to target tumors, and as a result can be used for the infrared sensing of cancer cells, in vivo imaging, and localized optothermal therapy.

Typical SEM images of Q-graphene

Properties of Q-Graphene

Despite the high interest in this type of carbon nanomaterial, high-yield cost-effective production has not yet been demonstrated. Q-Graphene™ is synthesized by a proprietary method based on substrate-free Chemical Vapor Deposition (CVD) catalytic growth. Q-Graphene™ particles are highly graphitic and free of impurities and they possess a large surface area (55 m2/g), good electrical conductivity, and outstanding thermal and chemical stability. Its low cost as well as its unique chemical and physical properties ensure the bright future of Q-Graphene™ in a variety of industrial applications.

Source: Graphene Supermarket

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Date Added: Nov 2, 2010 | Updated: Jun 11, 2013
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