Development Of Graphene-based Materials Research Articles

Development of Graphene-Based Materials with the Targeted Action for Cancer Theranostics

Development of Graphene-Based Materials with the Targeted Action for Cancer Theranostics

Advances in Graphene and Graphene-Related Materials

In recent years, the investigation into and development of graphene-based materials have been continuing, and have formed the basis of a remarkably large number of the latest publications in the fields of materials science, applied chemistry, and electronics [...]

Environmental Application of Graphene and Its Forms for Wastewater Treatment: a Sustainable Solution Toward Improved Public Health.

Public health is seriously jeopardized in developing countries due to poor sanitation and the presence of persistent pollutants in natural water bodies. Open dumping, wastewater discharge without proper treatment and atmospheric fallout of the organic and inorganic pollutants are the main causes behind the poor condition. Some of the pollutants pose a greater risk due to their toxicity and persistence. Such a class of pollutants are known as chemical contaminants of emerging concern (CECC), including antibiotics and drug residues, endocrine disruptors, pesticides and micro- and nano-plastics. Conventional treatment methods cannot treat them properly and are often associated with several disadvantages. However, the chronological development of techniques and materials for their treatment has exhibited graphene as an efficient candidate for environmental remediation. This current review considers the various graphene-based materials, their properties, advancement in synthesis methods with time and their detailed application in removing dyes, antibiotics and heavy metals. It has been discussed how graphene and its derivatives exhibit unique electronic, mechanical, structural and thermal properties. In this paper, the mechanism of adsorption and degradation using these graphene-based materials has also been discussed vividly. In addition to this, a bibliographic analysis was performed to identify the trend of research related to graphene and its derivatives in the adsorption and degradation of pollutants round the globe reflected by the publications. Therefore, this review can be instrumental in understanding the fact that further development of graphene-based materials and their mass production can provide a very effective and economical wastewater treatment method.

Applications of Graphene-Based Composites-A Review

Graphene has recently received a great deal of attention as a result of the remarkable properties it possesses. In the scientific literature, numerous applications for graphene oxide (GO) and reduced graphene oxide (rGO) have been reported. These studies give way for the exploration and development of graphene-based materials that can be used in industry in a broad variety of new and exciting ways. By conducting a thorough analysis of the recent literature based on graphene based technologies, it is important to discuss compositions of materials and draw attention to the most promising results and applications that have been developed. In this article, a wide range of graphene-based composites, as well as their methods of preparation, and applications, in photocatalysts, supercapacitors, and lithium-ion batteries, are discussed.

Prediction of Exchange-Correlation Energy of Graphene Sheets from Reverse Degree-Based Molecular Descriptors with Applications.

Over the past few years, the popularity of graphene as a potential 2D material has increased since graphene-based materials have applications in a variety of fields, including medicine, engineering, energy, and the environment. A large number of graphene sheets as well as an understanding of graphene’s structural hierarchy are critical to the development of graphene-based materials. For a variety of purposes, it is essential to understand the fundamental structural properties of graphene. Molecular descriptors were used in this study to investigate graphene sheets’ structural behaviour. Based on our findings, reverse degree-based molecular descriptors can significantly affect the exchange-correlation energy prediction. For the exchange-correlation energy of graphene sheets, a linear regression analysis was conducted using the reverse general inverse sum indeg descriptor, . From , a set of reverse topological descriptors can be obtained all at once as a special case, resulting in a model with a high correlation coefficient (R between 0.896 and 0.998). Used together, these reverse descriptors are graphed in relation to their response to graphene. Based on this study’s findings, it is possible to predict the exchange correlation energy as well as the geometric structures of graphene sheets with very little computational cost.

Applications of Graphene-Based Materials in Sensors: A Review.

With the research and the development of graphene-based materials, new sensors based on graphene compound materials are of great significance to scientific research and the consumer market. However, in the past ten years, due to the requirements of sensor accuracy, reliability, and durability, the development of new graphene sensors still faces many challenges in the future. Due to the special structure of graphene, the obtained characteristics can meet the requirements of high-performance sensors. Therefore, graphene materials have been applied in many innovative sensor materials in recent years. This paper introduces the important role and specific examples of sensors based on graphene and its base materials in biomedicine, photoelectrochemistry, flexible pressure, and other fields in recent years, and it puts forward the difficulties encountered in the application of graphene materials in sensors. Finally, the development direction of graphene sensors has been prospected. For the past two years of the COVID-19 epidemic, the detection of the virus sensor has been investigated. These new graphene sensors can complete signal detection based on accuracy and reliability, which provides a reference for researchers to select and manufacture sensor materials.

Development of Graphene-Based Materials in Bone Tissue Engineaering.

Bone regeneration‐related graphene‐based materials (bGBMs) are increasingly attracting attention in tissue engineering due to their special physical and chemical properties. The purpose of this review is to quantitatively analyze mass academic literature in the field of bGBMs through scientometrics software CiteSpace, to demonstrate the rules and trends of bGBMs, thus to analyze and summarize the mechanisms behind the rules, and to provide clues for future research. First, the research status, hotspots, and frontiers of bGBMs are analyzed in an intuitively and vividly visualized way. Next, the extracted important subjects such as fabrication techniques, cytotoxicity, biodegradability, and osteoinductivity of bGBMs are presented, and the different mechanisms, in turn, are also discussed. Finally, photothermal therapy, which is considered an emerging area of application of bGBMs, is also presented. Based on this approach, this work finds that different studies report differing opinions on the biological properties of bGBMS due to the lack of consistency of GBMs preparation. Therefore, it is necessary to establish more standards in fabrication, characterization, and testing for bGBMs to further promote scientific progress and clinical translation.

A novel UV-curable molecular-modified graphene oxide for high-resolution printed electronics

The development of graphene-based materials with good light-curing ability and excellent electrical conductivity is the key to next-generation electronic devices. Herein, we demonstrate the molecular structure modification of photocurable graphene oxide (PGO) by reacting hydroxyl groups with isocyano groups, which is referred to as grafting of the photosensitive group on pristine GO, resulting in photosensitive PGO flakes that can be photocured during 3D printing using water as a solvent and a developer. Complex-shaped and highly precise 2D and 3D structures of GO as well as thin single-layer or few-layer GO films are obtained by optimizing the concentration and photocuring parameters of the PGO precursor. After thermal reduction of PGO microarchitectures, the reduced cross-linked GO (rCGO) exhibits a minimum square resistance of 213.74 mΩ sq−1, which is similar to that of graphene. Moreover, rCGO demonstrates excellent cell compatibility during cell culture experiments and superior hydrophilicity. The latter property can be exploited to prepare solution-based detection electrodes. The proposed strategy is used to print circuits and 3D bulk conductors, and can facilitate the formation of various electronic devices via photocuring 3D printing or photolithography process.

Study on the surface energies and dispersibility of graphene oxide and its derivatives

Recent research has highlighted a remarkable growing focus on surface properties and dispersibility of graphene. In this study, we fabricated four types of surface-modified graphene oxide and its derivatives with different C/O ratios by facile chemical methods. The extent of modification, surface energies, and dispersibility of the as-prepared samples were investigated through elemental analysis, X-ray photoelectron spectroscopy, contact angle, inverse gas chromatography, dynamic multiple light scattering method, and atomic force microscope. Results demonstrated that surface energies are affected by functional groups and C/O ratios significantly. The higher the proportion of polar oxygen-containing groups of materials is, the larger the values of polar surface energies and total surface energies are. Dispersibility of graphene oxide and its derivatives depends not only on surface groups and degree of modification of samples, but also on Hansen solubility parameters of solvents. As a result, we proposed a predicted template to screen the ranges of potential graphene solvents. Such a research presented here would facilitate preparation of graphene–polymer composites and development of graphene-based materials.

ChemInform Abstract: Two‐Dimensional Nanocomposites Based on Chemically Modified Graphene.

AbstractReview: ca. 50 refs.

Two‐Dimensional Nanocomposites Based on Chemically Modified Graphene

The multiple functional groups and unique two-dimensional (2D) morphology make chemically modified graphene (CMG) an ideal template for the construction of 2D nanocomposites with various organic/inorganic components. Additionally, the recovered electrical conductivity of CMG may provide a fast-electron-transport channel and can thus promote the application of the resultant nanocomposites in optoelectronic and electrochemical devices. This Concept article summarizes the different strategies for the bottom-up fabrication of CMG-based 2D nanocomposites with small organic molecules, polymers, and inorganic nanoparticles, which represent the new directions in the development of graphene-based materials.

ChemInform Abstract: Graphene‐Based Materials in Electrochemistry

AbstractReview: 224 refs.

Graphene-based materials in electrochemistry

Graphene, as the fundamental 2D carbon structure with exceptionally high crystal and electronic quality, has emerged as a rapidly rising star in the field of material science. Its sudden discovery in 2004 led to an explosion of interest in the study of graphene with respect to its unique physical, chemical, and mechanical properties, opening up a new research area for materials science and condensed-matter physics, and aiming for wide-ranging and diversified technological applications. In this critical review, we will describe recent advances in the development of graphene-based materials from the standpoint of electrochemistry. To begin with, electron transfer properties of graphene will be discussed, involving its unusual electronic structure, extraordinary electronic properties and fascinating electron transport. The next major section deals with the exciting progress related to graphene-based materials in electrochemistry since 2004, including electrochemical sensing, electrochemiluminescence, electrocatalysis, electrochemical energy conversion and FET devices. Finally, prospects and further developments in this exciting field of graphene-based materials are also suggested (224 references).