Two-Dimensional Nanomaterials

Rafiei-Sarmazdeh, Zahra; Zahedi-Dizaji, Seyed Morteza; Kang, Aniseh Kafi

doi:10.5772/intechopen.85263

Cited by 24 publications

(9 citation statements)

References 71 publications

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“…Two-dimensional nanomaterials are considered the thinnest nanostructures among the different dimensional groups, and contrary to bulk materials, have a high surface-area-to-volume ratio ( Kallumottakkal et al, 2021 ). In the 2D nanostructures, the relative number of external to internal atoms is higher, and their different functions lead to a change in the behavior of 2D nanomaterials, in comparison to the other dimensional groups, conferring them a variety of unique physical, chemical, and electrical properties ( Rafiei-Sarmazdeh et al, 2019 ). Graphene is a 2D material with a hexagonal structure composed of sp 2 -hybridized C atoms, where each carbon atom is covalently bound with each other in the same plane ( Kallumottakkal et al, 2021 ).…”

Section: Nanomaterials For Water Cleaning Nanotechnologiesmentioning

confidence: 99%

Colloidal nanomaterials for water quality improvement and monitoring

et al. 2022

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Water is the most important resource for all kind forms of live. It is a vital resource distributed unequally across different regions of the globe, with populations already living with water scarcity, a situation that is spreading due to the impact of climate change. The reversal of this tendency and the mitigation of its disastrous consequences is a global challenge posed to Humanity, with the scientific community assuming a major obligation for providing solutions based on scientific knowledge. This article reviews literature concerning the development of nanomaterials for water purification technologies, including collaborative scientific research carried out in our laboratory (nanoLAB@UA) framed by the general activities carried out at the CICECO-Aveiro Institute of Materials. Our research carried out in this specific context has been mainly focused on the synthesis and surface chemical modification of nanomaterials, typically of a colloidal nature, as well as on the evaluation of the relevant properties that arise from the envisaged applications of the materials. As such, the research reviewed here has been guided along three thematic lines: 1) magnetic nanosorbents for water treatment technologies, namely by using biocomposites and graphite-like nanoplatelets; 2) nanocomposites for photocatalysis (e.g., TiO2/Fe3O4 and POM supported graphene oxide photocatalysts; photoactive membranes) and 3) nanostructured substrates for contaminant detection using surface enhanced Raman scattering (SERS), namely polymers loaded with Ag/Au colloids and magneto-plasmonic nanostructures. This research is motivated by the firm believe that these nanomaterials have potential for contributing to the solution of environmental problems and, conversely, will not be part of the problem. Therefore, assessment of the impact of nanoengineered materials on eco-systems is important and research in this area has also been developed by collaborative projects involving experts in nanotoxicity. The above topics are reviewed here by presenting a brief conceptual framework together with illustrative case studies, in some cases with original research results, mainly focusing on the chemistry of the nanomaterials investigated for target applications. Finally, near-future developments in this research area are put in perspective, forecasting realistic solutions for the application of colloidal nanoparticles in water cleaning technologies.

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Section: Nanomaterials For Water Cleaning Nanotechnologiesmentioning

confidence: 99%

Colloidal nanomaterials for water quality improvement and monitoring

et al. 2022

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“…Similarly, reduced grapheme oxide functionalized with chitosan and silk fibrin showed improvements in the hydrophilicity and growth of cells such as G–292 cells [ 153 , 154 , 155 ]. TMDs are layered materials with a structure resembling that of grapheme that are made of transition metal atoms sandwiched between layers of chalcogen atoms [ 156 ]. TMDs, like molybdenum disulfide functionalized with chitosan, were found to cavity-up the joint in the condition of osteoarthritis and showed no sign of erosion in the cartilage [ 157 ].…”

Section: Nanotechnology In Tissue Engineeringmentioning

confidence: 99%

Scaffold Using Chitosan, Agarose, Cellulose, Dextran and Protein for Tissue Engineering—A Review

et al. 2023

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Biological macromolecules like polysaccharides/proteins/glycoproteins have been widely used in the field of tissue engineering due to their ability to mimic the extracellular matrix of tissue. In addition to this, these macromolecules are found to have higher biocompatibility and no/lesser toxicity when compared to synthetic polymers. In recent years, scaffolds made up of proteins, polysaccharides, or glycoproteins have been highly used due to their tensile strength, biodegradability, and flexibility. This review is about the fabrication methods and applications of scaffolds made using various biological macromolecules, including polysaccharides like chitosan, agarose, cellulose, and dextran and proteins like soy proteins, zein proteins, etc. Biopolymer-based nanocomposite production and its application and limitations are also discussed in this review. This review also emphasizes the importance of using natural polymers rather than synthetic ones for developing scaffolds, as natural polymers have unique properties, like high biocompatibility, biodegradability, accessibility, stability, absence of toxicity, and low cost.

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“…Since MONPs react with in vivo systems differently, depending on their size, shape, purity, stability and surface properties, it is necessary to characterize their morphology. Based on the number of dimensions, which are not confined to the nano-range, MONPs can be classified into zero-, one-, two-and three-dimensional [5] as represented in Figure 1. Zero-dimensional nanomaterials include NPs, nanoclusters, quantum dots and so forth that have all dimensions on the nanometer scale.…”

Section: Introductionmentioning

confidence: 99%

Metal Oxide Nanoparticles as Biomedical Materials

Nikolova

Chavali²

2020

Biomimetics

317

146

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The development of new nanomaterials with high biomedical performance and low toxicity is essential to obtain more efficient therapy and precise diagnostic tools and devices. Recently, scientists often face issues of balancing between positive therapeutic effects of metal oxide nanoparticles and their toxic side effects. In this review, considering metal oxide nanoparticles as important technological and biomedical materials, the authors provide a comprehensive review of researches on metal oxide nanoparticles, their nanoscale physicochemical properties, defining specific applications in the various fields of nanomedicine. Authors discuss the recent development of metal oxide nanoparticles that were employed as biomedical materials in tissue therapy, immunotherapy, diagnosis, dentistry, regenerative medicine, wound healing and biosensing platforms. Besides, their antimicrobial, antifungal, antiviral properties along with biotoxicology were debated in detail. The significant breakthroughs in the field of nanobiomedicine have emerged in areas and numbers predicting tremendous application potential and enormous market value for metal oxide nanoparticles.

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Two-Dimensional Nanomaterials

Cited by 24 publications

References 71 publications

Colloidal nanomaterials for water quality improvement and monitoring

Colloidal nanomaterials for water quality improvement and monitoring

Scaffold Using Chitosan, Agarose, Cellulose, Dextran and Protein for Tissue Engineering—A Review

Metal Oxide Nanoparticles as Biomedical Materials

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