SOLIWODA, K, E TOMASZEWSKA, B TKACZ-SZCZESNA, E MACKIEWICZ, M ROSOWSKI, A BALD, C BLANCK, M SCHMUTZ, Jiří NOVÁK, F SCHREIBER, G CELICHOWSKI and J GROBELNY. Effect of the Alkyl Chain Length of Secondary Amines on the Phase Transfer of Gold Nanoparticles from Water to Toluene. Langmuir. WASHINGTON: AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2014, vol. 30, No 23, p. 6684-6693. ISSN 0743-7463. Available from: https://dx.doi.org/10.1021/la501135q.
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Basic information
Original name Effect of the Alkyl Chain Length of Secondary Amines on the Phase Transfer of Gold Nanoparticles from Water to Toluene
Authors SOLIWODA, K, E TOMASZEWSKA, B TKACZ-SZCZESNA, E MACKIEWICZ, M ROSOWSKI, A BALD, C BLANCK, M SCHMUTZ, Jiří NOVÁK, F SCHREIBER, G CELICHOWSKI and J GROBELNY.
Edition Langmuir, WASHINGTON, AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2014, 0743-7463.
Other information
Original language English
Type of outcome Article in a journal
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 4.457
Doi http://dx.doi.org/10.1021/la501135q
UT WoS 000337644200007
Keywords (in Czech) nanočástice, SAXS
Keywords in English nano-particles, SAXS
Tags International impact, Reviewed
Changed by Changed by: Mgr. Jiří Novák, Ph.D., učo 23056. Changed: 29/8/2014 10:17.
Abstract
In the present paper we describe a phase transfer of aqueous synthesized gold nanoparticles (AuNPs) from water to toluene using secondary amines: dioctylamine, didodecylamine, and dioctadecylamine. The effect of the hydrocarbon chain length and amount of amines on the transfer process using UV vis spectroscopy, dynamic light transfer efficiency were investigated in the case of nanoparticles (NPs) with three different sizes: 5, 9, and 13 nm. Aqueous colloids were precisely characterized before the scattering (DLS), small-angle X-ray scattering (SAXS), and transmission electron microscopy (TEM). Nanoparticles were next transferred to toluene and characterized using UV-vis and DLS techniques. It was found that dioctadecylamine provides the most effective transfer of nanoparticles. No time-dependent changes in the NP size were observed after 12 days, showing that the dioctadecylamine-stabilized nanoparticles dispersed in toluene were stable. This indicates that long hydrocarbon chains of dioctadecylamine exhibit sufficiently hydrophobic properties of nanoparticles and consequently their good dispersibility in nonpolar solvent.
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