Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	An ion-selective crown ether covalently grafted onto chemically exfoliated MoS2 as a biological fluid sensor
Δημιουργός/Συγγραφέας:	Stergiou, Anastasios Stangel, Christina Canton-Vitoria, Ruben Kitaura, Ryo [EL] Ταγματάρχης, Νίκος[EN] Tagmatarchis, Nikos
Εκδότης:	The Royal Society of Chemistry
Ημερομηνία:	2021-04-12
Γλώσσα:	Αγγλικά
ISSN:	2040-3364 2040-3372
DOI:	10.1039/D1NR00404B
Περίληψη:	We describe the basal plane functionalization of chemically exfoliated molybdenum disulfide (ce-MoS2) nanosheets with a benzo-15-crown-5 ether (B15C5), promoted by the chemistry of diazonium salts en route to the fabrication and electrochemical assessment of an ion-responsive electrode. The success of the chemical modification of ce-MoS2 nanosheets was investigated by infrared and Raman spectroscopy, and the amount of the incorporated crown ether was estimated by thermogravimetric analysis. Raman spatial mapping at on-resonance excitation allowed us to disclose the structural characteristics of the functionalized B15C5-MoS2 nanosheets and the impact of basal plane functionalization to the stabilization of the 1T phase of ce-MoS2. Morphological investigation of the B15C5-MoS2 hybrid was implemented by atomic force microscopy and high-resolution transmission electron microscopy. Furthermore, fast-Fourier-transform analysis and in situ energy dispersive X-ray spectroscopy revealed the crystal lattice of the modified nanosheets and the presence of crown-ether addends, respectively. Finally, B15C5-MoS2 electrodes were constructed and evaluated as ion-selective electrodes for sodium ions in aqueous solution and an artificial sweat matrix.
Τίτλος πηγής δημοσίευσης:	Nanoscale
Τόμος/Κεφάλαιο:	13
Τεύχος:	19
Σελίδες:	8948–8957
Θεματική Κατηγορία:	[EL] Νανοτεχνολογία[EN] Nanotechnology [EL] Φασματοσκοπία[EN] Spectroscopy [EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Χημική τεχνολογία[EN] Chemical technolgy
Λέξεις-Κλειδιά:	MoS2 Raman Electrodes Ions Crown-ethers
EU Grant identifier:	MIS 5048201 P19368
Όροι και προϋποθέσεις δικαιωμάτων:	Open Access Article. Is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
Ηλεκτρονική διεύθυνση με ανοικτή πρόσβαση (link):	https://pubs.rsc.org/en/content/articlelanding/2021/nr/d1nr00404b#!divAbstract
Σημειώσεις:	This research is co-financed by Greece and the European Union (European Social Fund – ESF) through the Operational Programme “Human Resources Development, Education and Lifelong Learning 2014–2020” in the context of the project “Chemically modified MoS2 with organic recognition motifs as electrochemical sensors for the selective detection of ions and (bio)molecules” (MIS 5048201). This work is also supported by Japan Society for the Promotion of Science (JSPS) postdoctoral fellowship grant agreement no P19368.
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο