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izvor podataka: crosbi

pH-Induced transformation of ligated Au25 to brighter Au23 nanoclusters (CROSBI ID 250146)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Waszkielewicz, Magdalena ; Olesiak-Banska, Joanna ; Zerbino, Clothilde ; Bertorelle, Franck ; Dagany, Xavier ; Bansal, Ashu K. ; Tariq Sajjad, Muhammad ; Samuel, Ifor D. W. ; Sanader, Zeljka ; Rozycka, Miroslawa et al. pH-Induced transformation of ligated Au25 to brighter Au23 nanoclusters // Nanoscale, 10 (2018), 24; 11335-11341. doi: 10.1039/C8NR00660A

Podaci o odgovornosti

Waszkielewicz, Magdalena ; Olesiak-Banska, Joanna ; Zerbino, Clothilde ; Bertorelle, Franck ; Dagany, Xavier ; Bansal, Ashu K. ; Tariq Sajjad, Muhammad ; Samuel, Ifor D. W. ; Sanader, Zeljka ; Rozycka, Miroslawa ; Wojtas, Magdalena ; Matczyszyn, Katarzyna ; Bonačić- Koutecký, Vlasta ; Antoine, Rodolphe ; Ożyhar, Andrzej ; Samoc, Marek

engleski

pH-Induced transformation of ligated Au25 to brighter Au23 nanoclusters

Thiolate-protected gold nanoclusters have recently attracted considerable attention due to their size-dependent luminescence characterized by a long lifetime and large Stokes shift. However, the optimization of nanocluster properties such as the luminescence quantum yield is still a challenge. We report here transformation of Au25Capt18 (Capt labels captopril) nanoclusters occurring at low pH and yielding a product with much increased luminescence quantum yield which we have identified as Au23Capt17. We applied a simple method of treatment with HCl to accomplish this transformation and we characterized the absorption and emission of the newly-created nanoclusters as well as their morphology. Based on DFT calculations we show which Au nanocluster size transformations can lead to the highly luminescent species such as Au23Capt17.

Thiolate-protected gold nanoclusters ; Au23Capt17 ; luminescence ; DFT calculations

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Podaci o izdanju

10 (24)

2018.

11335-11341

objavljeno

2040-3364

2040-3372

10.1039/C8NR00660A

Povezanost rada

Fizika, Kemija

Poveznice
Indeksiranost