caa a22 4500 605489769 CHVBK 20210128100501.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1134/S1061933X15040183 doi (NATIONALLICENCE)springer-10.1134/S1061933X15040183 Conjugates of gold nanoparticles and poly(ethylene glycol): Formation in hydrosol, direct transfer to organic medium, and stability of organosols [Elektronische Daten] [V. Terekhin, I. Senchikhin, O. Dement'eva, V. Rudoy] A onestage method has been developed for phase transfer of gold nanoparticles (NPs) with a diameter of 17.2 ± 0.5 nm from a hydrosol to an organic medium (chloroform). The method is based on the high affinity of thiolated poly(ethylene glycol) (TPEG) for nonpolar solvents and the capability of its molecules for chemisorption on a gold NP surface with the formation of a dense monolayer. Results of thermo-gravimetric analysis have been used to determine the maximum packing density (≈0.85 nm−2) of TPEG molecules on the surface of Au NPs with the aforementioned diameter. It has been shown that TPEG can play the roles of both an NP stabilizer and a phase transfer agent. Therewith, the degree of NP transfer from water to chloroform is ≈90%. The stability to aggregation of the obtained organosols has been found to increase with the chemisorption value of PEG molecules. It has been demonstrated that these organosols can be used to form two-dimensional ensembles of gold NPs on planar substrates. Pleiades Publishing, Ltd., 2015 Terekhin V. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut Senchikhin I. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut Dement'eva O. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut Rudoy V. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut Colloid Journal Pleiades Publishing 77/4(2015-07-01), 511-519 1061-933X 77:4<511 2015 77 10595 https://doi.org/10.1134/S1061933X15040183 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061933X15040183 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Terekhin V. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Senchikhin I. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Dement'eva O. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Rudoy V. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut NATIONALLICENCE 773 0- Colloid Journal Pleiades Publishing 77/4(2015-07-01), 511-519 1061-933X 77:4<511 2015 77 10595