Synthesis of Silver Nanoparticles Dispersed in Various Aqueous Media Using Laser Ablation

Abstract

The particle size, morphology, and stability of Ag-NPs were investigated in the present study. A Q-Switched Nd: YAG pulsed laser (λ = 532 nm, 360 mJ/pulse) was used for ablation of a pure Ag plate for 30 min to prepare Ag-NPs in the organic compound such as ethylene glycol (EG) and biopolymer such as chitosan. The media (EG, chitosan) permitted the making of NPs with well dispersed and average size of Ag-NPs in EG is about 22 nm and in chitosan is about 10 nm in spherical form. Particle size, morphology, and stability of NPs were compared with distilled water as a reference. The stability of the samples was studied by measuring UV-visible absorption spectra of samples after one month. The result indicated that the formation efficiency of NPs in chitosan was higher than other media and NPs in chitosan solution were more stable than other media during one month storage. This method for synthesis of silver NPs could be as a green method due to its environmentally friendly nature.

Rapid Biosynthesis Method and Characterization of Silver Nanoparticles Using <i>Zizyphus spina christi</i> Leaf Extract and Their Antibacterial Efficacy in Therapeutic Application

“…Analysis of UV-Vis spectra was done by using a double beam spectrophotometer (Shimadzu uv-1650 pc spectrophotometer) [23]. The solution of silver nanoparticles was monitored by measuring the UV-Vis spectrum of the reaction solution in the 300 -900 nm wavelength rang after diluting a small aliquot of the solution into deionized water.…”

Biosynthesis of Silver Nanoparticles and Its Applications

“…AgNPs of size ranging from 15.1 to 4.3 nm were synthesized by laser ablation of an Ag target in deionised water at a relatively high laser fluence of 15 J/cm 2 which increased linearly with an increase in water layer thickness and reached maximum value of 14 mm thickness [255]. AgNPs of size (22.08 and 10.5 nm) were prepared in the organic compound (ethylene glycol) and biopolymer (chitosan), respectively, by ablation of a pure Ag plate for 30 min using A Q-Switched Nd: YAG pulsed laser ( = 532 nm, 360 mJ/pulse) [256]. Laser ablation was used for the synthesis of AgNPs (6-12 nm) on a high purity silver bulk in distilled water by optimizing the effect of laser fluences [257].…”

Cytotoxic Effect of Synthesized Silver Nanoparticles by Pulse Laser Ablation on Breast Cancer Cell Line (Amj13) From Iraqi Patient and Normal Human Lymphocytes

“…The distance between target plate and laser source was 10 cm, diameter of laser spot on a targeted plate was 1 mm. After that, a yellowish colloidal solution of silver nanomaterial was obtained [28] with some modification.…”

“…The synthesis of AgNPs using the pulse laser ablation on silver metal plate was confirmed by the color change. The color of the solutions changed from colorless to yellowish during the ablation and to yellowish-brown depending concentration [28]. To monitor the synthesis and stability of AgNPs, the absorption spectra of the AgNPs were observed using UVvisible spectroscopy for same samples several times for 2 weeks.…”