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

Tan, Noel Peter Bengzon; Lee, Cheng Hao; Chen, Lianghui; Ho, Kin Man; Lü, Yan; Ballauff, Matthias; Li, Pei

doi:10.1016/j.polymer.2015.09.015

Cited by 26 publications

(20 citation statements)

References 43 publications

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“…The data shown here provide support for our previous work on the facile synthesis of gold/polymer nanocomposite particles using polymeric amine-based particles [1] . The purposes of these data are: (1) providing detailed synthesis of temperature-sensitive microgel particles consisting of poly( N -isopropylacrylamide) cores and amine-rich polyethyleneimine shells (PNIPAm/PEI); (2) verifying the effect of reaction temperature on the formation and encapsulation of gold nanoparticles using the PNIPAm/PEI microgel particles as dual reductants and templates; and (3) evaluating thermal stability of resultant Au@PNIPAm/PEI composite particles.…”

Section: Datasupporting

confidence: 86%

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

Tan

Lee

2015

Data in Brief

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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.

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Section: Datasupporting

confidence: 86%

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

Tan

Lee

2015

Data in Brief

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“…The preparation of the Au nanocomposite (Au/(PNIPAm/PEI)) particles was carried out based on a previous method [56] developed by Tan et al, performed via the addition of hydrogen tetrachloroaurate(III) trihydrate (HAuCl 4 •3H 2 O) solution into the as-prepared PNIPAm/PEI. The mixture was continuously stirred and carried out at different temperatures and pHs for 2 hours and heated at 60°C for about an hour.…”

Section: Synthesis Of Aunps In Pnipam/pei Microgel Templatementioning

confidence: 99%

Environment-Friendly Approach in the Synthesis of Metal/ Polymeric Nanocomposite Particles and Their Catalytic Activities on the Reduction of p-Nitrophenol to p-Aminophenol

Tan¹,

Lee²

2017

Green Chemical Processing and Synthesis

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In this chapter, an environment-friendly approach in synthesizing Au and Au@Ag metal nanoparticles using a microgel is demonstrated. Poly(N-isopropyl acrylamide)/polyethyleneimine microgel was used as a multifunctional template to reduce metal ions to metal nanoparticles, stabilize and immobilize these metal nanoparticles, and regulate their accessibility within the template. Such multifunctional roles of microgel template were possible due to their unique properties (i.e., amino groups reducing capability, electrostatic and steric stabilizing properties, and swelling/deswelling properties). Characterizations of these metal/polymeric composite particles were also performed, such as scanning electron microscope (SEM), transmission electron microscope (TEM), Zeta-potential, UV-vis spectroscopy, X-ray Diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). To test the catalytic activities of both gold and gold@silver nanoparticles in the microgel template, a model reaction (i.e., reduction of p-nitrophenol to p-aminophenol) was performed. Results showed that bimetallic gold@silver gave 10 times higher catalytic activity compared to monometallic gold nanoparticles. With the simple one-step synthesis, a highly scalable process is possible.

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“…Furthermore, polymer microgels are frequently used as nanoreactors for the in situ synthesis of metallic NPs 4 , and small particles decorating the microgel are successfully formed 5 . However, the control over the metallic NP structure and distribution is rather difficult.…”

Section: Introductionmentioning

confidence: 99%

Curcumin to Promote the Synthesis of Silver NPs and their Self-Assembly with a Thermoresponsive Polymer in Core-Shell Nanohybrids

Soto‐Quintero

Guarrotxena

Garcı́a

et al. 2019

Sci Rep

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This work presents a simple one-pot protocol to achieve core-doped shell nanohybrids comprising silver nanoparticles, curcumin and thermoresponsive polymeric shell taking advantage of the reducing properties of phenolic curcumin substance and its ability to decorate metallic surfaces. Silver nanoparticles were synthesized, via sodium citrate and silver nitrate addition into a boiling aqueous solution of curcumin, monomers and surfactant. Curcumin and sodium citrate promoted silver nucleation, acting as reducing and stabilizing agents. These curcumin-capped AgNPs enabled, after adding the radical polymerization initiator, the assembling of the growing polymer chains around the hydrophobic AgNP surface. The resultant core-doped shell nanohybrids exhibit plasmonic, luminescent and volume thermoresponsive properties, with improved possibilities to be used as successful therapeutic platforms. In fact, the possibility to nanoconfine the synergistic antioxidant, antiviral, antibacterial features of silver and curcumin in one bioavailable hybrid paves the way to promising applications in the biomedical field.

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

Cited by 26 publications

References 43 publications

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

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

Environment-Friendly Approach in the Synthesis of Metal/ Polymeric Nanocomposite Particles and Their Catalytic Activities on the Reduction of p-Nitrophenol to p-Aminophenol

Curcumin to Promote the Synthesis of Silver NPs and their Self-Assembly with a Thermoresponsive Polymer in Core-Shell Nanohybrids

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