Titolo:  Zn2+/Cd2+ optical discrimination by fluorescent acridine-based bis-macrocylic receptors
Data di pubblicazione:  2017
Autori: 
Autori:  Carla Aragoni, M.; Arca, Massimiliano; Bencini, Andrea; Caltagirone, Claudia; Conti, Luca; Garau, Alessandra; Valtancoli, Barbara; Isaia, Francesco; Lippolis, Vito; Palomba, Francesco; Prodi, Luca; Zaccheroni, Nelsi
Numero degli autori:  12
Lingua:  Inglese
Presenza coautori internazionali:  no
Rivista:  SUPRAMOLECULAR CHEMISTRY
Volume:  29
Fascicolo:  11
Pagina iniziale:  912
Pagina finale:  921
Numero di pagine:  10
Digital Object Identifier (DOI):  http://dx.doi.org/10.1080/10610278.2017.1387262
Codice identificativo Scopus:  2-s2.0-85031110817
Codice identificativo ISI:  WOS:000415626000014
Abstract:  A new acridine-based fluorescent chemosensor, L2, featuring two sulfurated macrocyclic units has been synthesised. Proton and metal binding properties of L2 have been studied in H2O/CH3CN (1:1 v/v) by potentiometric and spectrophotometric measurements and compared with those of the analogous and previously published bis-macrocyclic receptor featuring two [9]aneN3 units (L1). Despite a thermodynamic selectivity observed for Zn2+ with both L1 and L2, L2 shows a marked sensing selectivity towards Cd2+ via a chelation enhancement of fluorescence (CHEF) effect both in H2O/CH3CN (1:1 v/v) and in H2O using silica core-PEG shell nanoparticles as vehiculant. On the other hand, L1 shows a selective optical sensing towards Zn2+ in agreement with the thermodynamic selectivity observed for the same metal ion.
Parole chiave:  Fluorescent chemosensors; Acridine; Zn2+/Cd2+ optical discrimination; Thio/aza macrocycles
Tipologia: 1.1 Articolo in rivista

File in questo prodotto:
File Descrizione Tipologia Licenza  
302 Supramol Chem 2017.pdf  pdf versione editoriale Administrator   Richiedi una copia

Questionario e social

Condividi su: