• BioGraphene & Bio-MoS2 Suspensions in Water

    BioGraphene & Bio-MoS2 Suspensions in Water
    May 15, 2018 | ACS MATERIAL LLC

    Applications of graphene and its two-dimensional counterparts (MoS2, BN) in the biomedical and healthcare sectors require water dispersions and biocompatible derivatives.1,2 Although the successful exfoliation of these bulk materials using organic solvents,3,4 ionic liquids,5,6 or surfactants7 has been reported, the biocompatibility of the resulting product, quality, expense, and environmental impact still remain unaddressed. 8 Introduction In an effort to produce biocompatible graphene, proteins were recently used to yield aqueous graphene dispersions using two separate methods, shear and ultrasonication. Sonication gave low exfoliation efficiencies (1 mg mL−1 h−1), limited scala... Read More

  • BioGraphene Suspensions in Sera

    BioGraphene Suspensions in Sera
    May 8, 2018 | ACS MATERIAL LLC

    Synthesizing the graphene-bio interface has become an increasingly important step for biological applications. Touted as the material of the millennium, graphene has undergone rapid development focusing on optoelectronic applications for lightweight and ultrafast electronic devices. Properties such as high surface area, light weight, high mechanical strength and fluorescence also make graphene highly attractive for biological and health care applications. Colloidal stability and low toxicity are vital for the implementation of graphene materials for such applications like biosensors, drug delivery and bioelectronics, however, there have been challenges due to hydrophobicity, the presen... Read More

  • Industrial-Scale Graphene Nanoplatelets & Dispersions

    Industrial-Scale Graphene Nanoplatelets & Dispersions
    Jan 10, 2018 | ACS MATERIAL LLC

    Graphene is typically produced with either a top-down or bottom-up approach; however, manufacturing a vast amount of the material is beneficial in technical industries. Creating high-quality and high-yield graphene, such as graphene nanoplatelets and dispersions, can push forward its use in a variety of industrial applications such as electronics, touchscreens and light-emitting diodes. This report will explain the different methods used to synthesize a large amount of these graphene materials and its benefits in industrial applications. Introduction Graphene is a one-atom-thick, honeycomb lattice structure that was extracted from graphite as shown in Figure 1, below. Apart from graph... Read More

  • Carbon Nanomaterials

    Carbon Nanomaterials
    Dec 21, 2017 | ACS MATERIAL LLC

    Carbon nanostructures have expanded into a nice range of materials containing electrical and thermal conductivity along with other unique properties. Carbon nanomaterials, such as nanohorns, nanofibers and the more popular nanotubes, all have different shapes and features that set them apart from one another. Each nanomaterial incorporates graphene within its structure which adds to their distinctive characteristics and have been researched for use in electronics, sensors and batteries. Here, we will focus on the properties of these carbon materials measured on a nanometer scale and their promising applications. Introduction Carbon nanomaterials, such as carbon nanotubes, nanohorns and... Read More

  • Graphene-like Materials

    Graphene-like Materials
    Dec 18, 2017 | ACS MATERIAL LLC

    Since the discovery of graphene, other two-dimensional materials have gained further interest in hopes of finding similar extraordinary properties. Materials with a similar structure to that of graphene, such as black phosphorus and transition metal dichalcogenides, have been researched to potentially be used in applications comparable such as electronics, batteries, optical devices and more. With the ability to absorb light from visible to infrared, the possession of bandgaps, and a low friction coefficient, these 2D materials possess characteristics that sets them apart from its predecessor. This report will describe more about graphene-like materials and its promising use in future ... Read More

  • Mesporous Silica

    Mesporous Silica
    Dec 7, 2017 | ACS MATERIAL LLC

    Mesoporous silica materials have gained much attention due to its ordered pore structures and ability to be controlled at micrometer and nanometer scales. The material made excellent candidates to many applications such as drug delivery, adsorption and waste water treatment. The high surface area and narrow pore size distribution make this material suitable as catalysts and templates for other materials. Here, we will discuss what makes this material so unique, the different methods that was used to synthesize them and some of their applications. Introduction Mesoporous silicas (MS) are solid materials with a porous structure and many empty channels (mesopores) that absorb relatively l... Read More

  • Graphene Transfer

    Graphene Transfer
    Nov 29, 2017 | ACS MATERIAL LLC

    Fabricating graphene molecularly through Chemical Vapor Deposition (CVD) has been highly desirable and popular as it can produce the material with a large surface area. The CVD method involves graphene growth on a metal catalyst and the transfer of that graphene onto different substrates for various application purposes. Transferring the material is quite common and can be done in different ways, such as utilizing a thermal release tape and PMMA. This report will explain both techniques and its ease in transferring graphene. Introduction Since the graphene market has been on the rise over the past decade, producing a large, high-quality amount has been a common focus in research. Curre... Read More

  • Graphene Oxide

    Graphene Oxide
    Nov 21, 2017 | ACS MATERIAL LLC

    Commercializing graphene has been a main interest in research and technology, but its high cost and some difficulty in producing large quantities of the material remains to be a topic of discussion. However, graphene oxide is exceptionally feasible in creating a scalable production; in fact, it has been an attractive precursor material for a large-scale production of graphene-based materials. Here, we discuss more about graphene oxide, its synthesis and how it can be an excellent material for various applications. Introduction to Graphene Oxide Graphene is a two-dimensional, crystalline allotrope with a hexagonal lattice structure made from pure carbon atoms. They are best known for i... Read More

  • Introduction to MOFs & COFs

    Introduction to MOFs & COFs
    Nov 15, 2017 | ACS MATERIAL LLC

    Porous organic materials display unique qualities that can potentially be used in various applications. New classes of these porous materials, such as metal-organic frameworks and covalent organic frameworks, have gained attention due to its distinctive attributes. Thousands of new frameworks have since been discovered after its first discovery and further researched to gain more insight on their properties. This article will discuss these materials’ structure and synthesis as well as their promising benefits in different applications. Introduction Porous materials have played an important role in technology, but two classes of molecular sieves with distinctive qualities have been e... Read More

  • Upconverting Nanoparticles

    Upconverting Nanoparticles
    Oct 24, 2017 | ACS MATERIAL LLC

    Upconverting nanoparticles have attracted a large amount of interest due to their ability to partake in bioimaging and therapy applications. Upconversions display anti-Stokes shifts in which the summed, single emitted photon has a higher energy than the incident photons. While this is an unnatural phenomenon, rare earth metals have been used to assist in upconversions due to its multiple excitation levels. With this ability, these nanoparticles can be used to possibly overcome limitations (as found in quantum dots) when displaying fluorescent properties. In this article, we will discuss the process of upconverting nanoparticles and how it can potentially provide a better alternative in... Read More

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