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Polyethylenimine as a versatile simultaneous reducing and stabilizing agent enabling one-pot synthesis of transition-metal nanoparticles: fundamental aspects and practical implications
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SYSNO ASEP 0579687 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Polyethylenimine as a versatile simultaneous reducing and stabilizing agent enabling one-pot synthesis of transition-metal nanoparticles: fundamental aspects and practical implications Author(s) Ribeiro, C. A. S. (BR)
Panico, K. (BR)
Handajevsky, T. J. (BR)
da Silva, F. D. (BR)
Bellettini, I. C. (BR)
Pavlova, Ewa (UMCH-V) RID
Giacomelli, F. C. (BR)Source Title Langmuir. - : American Chemical Society - ISSN 0743-7463
Roč. 39, č. 48 (2023), s. 17353-17365Number of pages 13 s. Language eng - English Country US - United States Keywords nanoparticles ; catalytic-reduction ; phospholipid-composition Subject RIV CD - Macromolecular Chemistry OECD category Polymer science Method of publishing Limited access Institutional support UMCH-V - RVO:61389013 UT WOS 001114447900001 EID SCOPUS 85178661231 DOI 10.1021/acs.langmuir.3c02538 Annotation The large surface area of metallic nanoparticles provides them with particular optical, chemical, and biological properties, accordingly enabling their use in a wide array of applications. In this regard, facile and fast synthetic approaches are desirable for ready-to-use functional materials. Following early investigations focused on the direct synthesis of polymer-coated gold nanoparticles, we herein demonstrate that such a strategy can be used to manufacture different types of d-block transition-metal nanoparticles via a one-pot method in aqueous media and mild temperature conditions. Gold (Au3+), palladium (Pd2+), and silver (Ag+) ions could be reduced using only polyethylenimine (PEI) or PEI derivatives acting simultaneously as a reducing and stabilizing agent and without the aid of any other external agent. The process gave rise, for instance, to Pd urchin-like nanostructures with a large surface area which confers to them outstanding catalytic performance compared to AuNPs and AgNPs produced using the same strategy. The polymer-stabilized AgNPs were demonstrated to be biocide against a variety of microorganisms, although AuNPs and PdNPs do not hold such an attribute at least in the probed concentration range. These findings may provide significant advances toward the practical, facile, and ready-to-use manufacturing of transition-metal nanoparticles for a myriad of applications. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2024 Electronic address https://pubs.acs.org/doi/10.1021/acs.langmuir.3c02538
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