Influence of temperature on the formation and encapsulation of gold nanoparticles using a temperature-sensitive template

Abstract

This data article describes the synthesis of temperature-sensitive and amine-rich microgel particle as a dual reductant and template to generate smart gold/polymer nanocomposite particle. TEM images illustrate the influence of reaction temperature on the formation and in-site encapsulation of gold nanoparticles using the temperature-sensitive microgel template. Thermal stability of the resultant gold/polymer composite particles was also examined.

Facile synthesis of gold/polymer nanocomposite particles using polymeric amine-based particles as dual reductants and templates

“…These particles were synthesized according to our previously established methods [26,27,31]. A schematic diagram of the synthesis of coreeshell PNIPAm/PEI is presented in Date in Brief [40]. Fig.…”

“…Supplemental TEM images on the effect of temperature using PNIPAm/PEI template are shown in Figs. 2 and 3 in Date in Brief [40].…”

Preparation, optical characterization and stability of gold nanoparticles by facile methods

“…A great variety of syntheses have been proposed over the years, being the Chloroauric acid HAuCl 4 the most used precursor for colloidal gold. These variations include the use of reducing agents [12], stabilizing agents [13], reaction medium [14], pH control [15], reaction temperature [16], among others. Gold nanoparticles are obtained mainly by a conventional heating method and microwave synthesis [17], being the latter the most studied in recent years, due to short synthesis times and small amounts of reagent.…”

Green Synthesis of Smart Metal/Polymer Nanocomposite Particles and Their Tuneable Catalytic Activities

“…The gold nanoparticles were first generated through a reduction of gold salt with a polymeric amine using core-shell particles that consisted of poly( N -isopropyl acrylamide) cores and polyethyleneimine shells. Generation and stabilization mechanisms of gold nanoparticles and formation of Au@PNIPAm/PEI nanocomposite particles have been discussed in our previous papers [ 17 , 18 ]. Amine groups are known to have a reducing ability to generate metal nanoparticles [ 22 ].…”

“…Our group has recently reported a simple and green synthesis of AuNPs/polymer nanocomposite particles through a spontaneous reduction of tetrachloroauric (III) acid and encapsulation of the resultant gold nanoparticles using amine-rich core-shell particles in water [ 17 , 18 ]. The high local amine concentration of the polyethyleneimine shell enables effective reduction of gold ions to gold nanoparticles in the absence of any organic solvents, reducing agents, or stabilizers.…”