The synthesis of large pentatwinned five-branched gold nanostars (GNS) has been modified so to obtain overall dimensions shrunk to 60% and a lower branches aspect ratio, leading to a dramatic blue shift of their two near-infrared (NIR) localized surface plasmon resonances (LSPR) absorptions but still maintaining one LSPR in the biotransparent NIR range. The interactions of polyethylene glycol (PEG) coated large and shrunk GNS with SH-SY5Y cells revealed that the large ones (DCI - diameter of the circumference in which GNS can be inscribed = 76 nm) are internalized more efficiently than the shrunk ones (DCI = 46 nm), correlating with a decreased cells surviving fraction

Dacarro, G., Pallavicini, P., Bertani, S., Chirico, G., D'Alfonso, L., Falqui, A., et al. (2017). Synthesis of reduced-size gold nanostars and internalization in SH-SY5Y cells. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 505, 1055-1064 [10.1016/j.jcis.2017.06.102].

Synthesis of reduced-size gold nanostars and internalization in SH-SY5Y cells

Chirico, Giuseppe;D'Alfonso, Laura;Sironi, Laura;
2017

Abstract

The synthesis of large pentatwinned five-branched gold nanostars (GNS) has been modified so to obtain overall dimensions shrunk to 60% and a lower branches aspect ratio, leading to a dramatic blue shift of their two near-infrared (NIR) localized surface plasmon resonances (LSPR) absorptions but still maintaining one LSPR in the biotransparent NIR range. The interactions of polyethylene glycol (PEG) coated large and shrunk GNS with SH-SY5Y cells revealed that the large ones (DCI - diameter of the circumference in which GNS can be inscribed = 76 nm) are internalized more efficiently than the shrunk ones (DCI = 46 nm), correlating with a decreased cells surviving fraction
Articolo in rivista - Articolo scientifico
Scientifica
Cell internalization; Gold; Nanoparticles; Nanostars; Electronic, Optical and Magnetic Materials; Biomaterials; Surfaces, Coatings and Films; Colloid and Surface Chemistry
English
Dacarro, G., Pallavicini, P., Bertani, S., Chirico, G., D'Alfonso, L., Falqui, A., et al. (2017). Synthesis of reduced-size gold nanostars and internalization in SH-SY5Y cells. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 505, 1055-1064 [10.1016/j.jcis.2017.06.102].
Dacarro, G; Pallavicini, P; Bertani, S; Chirico, G; D'Alfonso, L; Falqui, A; Marchesi, N; Pascale, A; Sironi, L; Taglietti, A; Zuddas, E
File in questo prodotto:
File Dimensione Formato  
J.Colloid.pdf

Solo gestori archivio

Tipologia di allegato: Publisher’s Version (Version of Record, VoR)
Dimensione 2.18 MB
Formato Adobe PDF
2.18 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/181632
Citazioni
  • Scopus 12
  • ???jsp.display-item.citation.isi??? 12
Social impact