Central Countries' and Brazil's Contributions to Nanotechnology

Abstract

Background: Nanotechnology is a cornerstone of the scientific advances witnessed over the past few years. Nanotechnology applications are extensively broad, and an overview of the main trends worldwide can give an insight into the most researched areas and gaps to be covered. Objective: This document presents an overview of the trend topics of the three leading countries studying in this area, as well as Brazil for comparison. Method: The data mining was made from the Scopus database and analyzed using the VOSviewer and Voyant Tools software. Results: More than 44.000 indexed articles published from 2010 to 2020 revealed that the countries responsible for the highest number of published articles are The United States, China, and India, while Brazil is in the fifteenth position. Thematic global networks revealed that the standing-out research topics are health science, energy, wastewater treatment, and electronics. In a temporal observation, the primary topics of research are: India (2020), which was devoted to facing SARS-COV 2; Brazil (2019), which is developing promising strategies to combat cancer; China (2018), whit research on nanomedicine and triboelectric nanogenerators; the United States (2017) and the Global tendencies (2018) are also related to the development of triboelectric nanogenerators. The collected data are available on GitHub. Conclusions: This study demonstrates the innovative use of data-mining technologies to gain a comprehensive understanding of nanotechnology's contributions and trends and highlights the diverse priorities of nations in this cutting-edge field.

A 30-Year Review on Nanocomposites: Comprehensive Bibliometric Insights into Microstructural, Electrical, and Mechanical Properties Assisted by Artificial Intelligence

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“…The research landscape is refined using network graph methodologies to identify key research nodes and their interconnections [ 31 , 120 , 140 , 215 , 217 , 218 , 301 , 302 , 441 , 442 , 443 , 444 , 445 , 446 , 447 , 448 , 449 , 450 , 451 ], spotlighting pivotal works and active research clusters, especially in emerging research hubs like the United States, China, and India.…”

“…However, the development of nanomaterials faces considerable challenges. Enhancing mechanical [22,36,40,41,60,67,70,, electrical [21,27,[30][31][32]35,42,55,59,120,, and microstructural [19,53,63,68,118, attributes in nanocomposites requires precise nanoscale manipulation. This is coupled with issues like reproducibility, cost, and complexity in preparation, adding to the intricacies of nanomaterial research [231][232][233][234][235][236][237][238][239][240][241][242][243][244][245][246][247][248][249][250].…”