Printing nano-ink with platinum nanoparticles to generate conductive microstructures for electronics on different types of substrates has gained increasing interest in recent years. To solve the problem of the low conductivity of platinum (Pt) nano-ink, we synthesized chemically pure Pt nanoparticles with sizes of 18.2 ± 9.0 nm by spark discharge method. A low toxic solvent, ethylene glycol with water, was used to ensure the aggregation stability of Pt nanoparticles. Polyvinylpyrrolidone was used as an adhesive additive and binder in the nano-ink. Narrow and conductive Pt lines were generated by aerosol jet printing technology. The resistivity of the Pt lines sintered at 750 °C on alumina substrate was found to exceed the bulk Pt by about 13%. Moreover, the Pt film fabricated on polymer substrates has demonstrated excellent mechanical flexibility in terms of twisting tests.
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http://dx.doi.org/10.3390/polym13060918 | DOI Listing |
Nanoscale
January 2025
Department of Chemical Engineering, Texas Tech University, Lubbock, TX 79409, USA.
Additive manufacturing (AM) of magnetic materials has recently attracted increasing interest for various applications but is often limited by the high cost and supply chain risks of rare-earth-element (REE) magnetic precursors. Recent advances in nanomanufacturing have enabled the development of rare-earth-free (REF) magnetic materials, such as spinel ferrites, hexaferrites, MnAl, MnBi, Alnico, FePt, and iron oxides/nitrides, which offer promising alternatives for printing high-performance magnetic devices. This review provides a detailed overview of the latest developments in REF magnetic materials, covering both synthesis strategies of REF magnetic materials/nanomaterials and their integration into AM processes.
View Article and Find Full Text PDFEvolving technology and the development of new devices that can aerosolize water present a risk for new sources of Legionella bacteria growth and spread within industrial settings. We investigated a cluster of legionellosis among employees of a manufacturing facility in South Carolina, USA, and found 2 unique equipment sources of Legionella bacteria. The cluster of cases took place during August-November 2022; a total of 34 cases of legionellosis, including 15 hospitalizations and 2 deaths, were reported.
View Article and Find Full Text PDFAnaesth Crit Care Pain Med
December 2024
Perioperative Care Program, Perioperative Medicine Team, Telethon Kids Institute, Northern Entrance, Perth Children's Hospital, 15 Hospital Ave, Nedlands WA 6009, Perth, Australia; Division of Emergency Medicine, Anaesthesia and Pain Medicine, Medical School, The University of Western Australia, 35 Stirling Hwy, Crawley WA 6009, Perth, Australia; School of Human Sciences, The University of Western Australia, 35 Stirling Hwy, Crawley WA 6009, Perth, Australia; Institute for Paediatric Perioperative Excellence, The University of Western Australia, 35 Stirling Hwy, Crawley WA 6009, Perth, Australia; Department of Anaesthesia and Pain Medicine, Perth Children's Hospital, 15 Hospital Ave, Nedlands WA 6009, Perth, Australia. Electronic address:
Sensors (Basel)
December 2024
Department of Industrial, Electronic and Mechanical Engineering, University of Roma Tre, 00146 Rome, Italy.
Wearable strain sensors are widespread in many fields, including the biomedical field where they are used for their stretchability and ability to be applied to non-regular surfaces. The study of the propagation speed of the pressure wave generated by the heartbeat within vessels, i.e.
View Article and Find Full Text PDFMaterials (Basel)
December 2024
Institute of Machinery, Materials and Transport, Peter the Great Saint Petersburg Polytechnic University, Politechnicheskaya ul. 29, 195251 Saint Petersburg, Russia.
In recent years, 3D printing has emerged as a promising technology in energy storage, particularly for the fabrication of Li-ion battery electrodes. This innovative manufacturing method offers significant material composition and electrode structure flexibility, enabling more complex and efficient designs. While traditional Li-ion battery fabrication methods are well-established, 3D printing opens up new possibilities for enhancing battery performance by allowing for tailored geometries, efficient material usage, and integrating multifunctional components.
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