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Titel: Strong and Elastic Membranes via Hydrogen Bonding Directed Self-Assembly of Atomically Precise Nanoclusters
VerfasserIn: Som, Anirban
Griffo, Alessandra
Chakraborty, Indranath
Hähl, Hendrik
Mondal, Biswajit
Chakraborty, Amrita
Jacobs, Karin
Laaksonen, Päivi
Ikkala, Olli
Pradeep, Thalappil
Nonappa
Sprache: Englisch
Titel: Small
Bandnummer: 18
Heft: 34
Verlag/Plattform: Wiley
Erscheinungsjahr: 2022
Freie Schlagwörter: 2D membranes
colloids
nanoclusters
nanoparticle self-assembly
precision nanoparticles
DDC-Sachgruppe: 500 Naturwissenschaften
Dokumenttyp: Journalartikel / Zeitschriftenartikel
Abstract: 2D nanomaterials have provided an extraordinary palette of mechanical, electrical, optical, and catalytic properties. Ultrathin 2D nanomaterials are classically produced via exfoliation, delamination, deposition, or advanced synthesis methods using a handful of starting materials. Thus, there is a need to explore more generic avenues to expand the feasibility to the next generation 2D materials beyond atomic and molecular-level covalent networks. In this context, self-assembly of atomically precise noble nanoclusters can, in principle, suggest modular approaches for new generation 2D materials, provided that the ligand engineering allows symmetry breaking and directional internanoparticle interactions. Here the self-assembly of silver nanoclusters (NCs) capped with p-mercaptobenzoic acid ligands (Na4Ag44-pMBA30) into large-area freestanding membranes by trapping the NCs in a transient solvent layer at air–solvent interfaces is demonstrated. The patchy distribution of ligand bundles facilitates symmetry breaking and preferential intralayer hydrogen bondings resulting in strong and elastic membranes. The membranes with Young’s modulus of 14.5 ± 0.2 GPa can readily be transferred to different substrates. The assemblies allow detection of Raman active antibiotic molecules with high reproducibility without any need for substrate pretreatment.
DOI der Erstveröffentlichung: 10.1002/smll.202201707
URL der Erstveröffentlichung: https://doi.org/10.1002/smll.202201707
Link zu diesem Datensatz: urn:nbn:de:bsz:291--ds-393428
hdl:20.500.11880/35474
http://dx.doi.org/10.22028/D291-39342
ISSN: 1613-6829
1613-6810
Datum des Eintrags: 21-Mär-2023
Bezeichnung des in Beziehung stehenden Objekts: Supporting Information
In Beziehung stehendes Objekt: https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fsmll.202201707&file=smll202201707-sup-0001-SuppMat.pdf
Fakultät: NT - Naturwissenschaftlich- Technische Fakultät
Fachrichtung: NT - Physik
Professur: NT - Prof. Dr. Karin Jacobs
Sammlung:SciDok - Der Wissenschaftsserver der Universität des Saarlandes



Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons Creative Commons