Synthesis of Au, Ag, Curcumin Au/Ag, and Au-Ag Nanoparticles and Their Nonlinear Refractive Index Properties

Abstract

Nanoparticles of gold and silver were prepared by a reduction method and by employing green chemistry principles such as using curcumin as a reducing and a stabilizing agent. The formation of nanoparticles was confirmed by UV-Vis absorption spectra and TEM. Mie theory was used to determine the particle sizes. The nonlinear refraction and absorption properties of the particles were measured using the z-scan technique. A large value of third-order nonlinearities was obtained using the nanoparticles produced.

Phytosynthesis of silver nanoparticles from Jatropha integerrima Jacq. flower extract and their possible applications as antibacterial and antioxidant agent

“…The emergence of the peak in the UV–Vis spectra at a lower wavelength shows that the nanoparticles formed were small, whereas a lengthier wavelength indicates that the Ag-NPs formed were larger. According to Mie's hypothesis, spherical shaped nanoparticles produce a single SPR band in the UV–Vis spectrum ( Abdulwahab et al, 2016 ).…”

Curcumin as a novel reducing and stabilizing agent for the green synthesis of metallic nanoparticles

“…Furthermore, Abdelwahab et al have monitored the synthesis of Au NPs using curcumin as a reducing agent and by adding HAuCl 4 dropwise at pH equal to 9.3 (61). In this case, when adding HAuCl 4 drop by drop, the solution color starts to change from yellow to colorless, then black, and finally burgundy red.…”

Synthesis of Silver Nanoparticles Using Curcumin-Cyclodextrins Loaded into Bacterial Cellulose-Based Hydrogels for Wound Dressing Applications

“…The main challenge that limits the wider biomedical application of CUR is its hydrophobic nature. Several chemical mediators like dimethyl sulfoxide, dichloromethane, and sodium carbonate are employed in AgNP synthesis from CUR. − These chemical mediators can have serious cytotoxic effects . Selection of solvent medium, reducing agent, and nontoxic stabilizer are the main considerations in green nanoparticle production. , The current study reports the production of AgNP following a green chemistry approach using an aqueous solution of curcumin:hydroxypropyl-β-cyclodextrin (CUR:HPβCD).…”