Author(s)

Lamin S. Kassama^1*, Abiola J. Kuponiyi¹, Tatiana Kukhtareva²

¹Food Engineering Laboratory, Department of Food and Animal Sciences, A-101 Carver Complex Thomas Wing South, Alabama A&M University, Normal, AL, USA.
²Department of Physics, Chemistry & Mathematics, Alabama A&M University, Normal, AL, USA.

Biosynthesis of silver nanoparticles (AgNP) using biomolecular extracts of plant origin is of interest to many researchers because of their potential to produced stable product. It is hypothesized that laser ablation of the AgNP in solution will enhance the biomolecules such as aliphatic amines, alkenes (=C-H), alkanes (C-H), alcohol (O-H) and unsaturatedesters (C-O) in the Nano emulsion. Hence, the objective of this study was to evaluate the effect of laser oblation on the physicochemical properties and stability of AgNP reduced with Aloe vera (Aloe barbadensis ). Experiments were conducted with the pre-made AgNP were subjected to the three laser oblation treatments: 1) Control no laser treatment of AgNP, 2) Laser ablation treatment for 5 minutes and 3) Laser ablation treatment for 10 minutes. The results of the analysis show that laser oblation treatment has significant effect (p < 0.01) on the concentration of AgNP. The intensity of the absorption peak significantly (p < 0.01) increases with laser exposure time. While 214 ppm was observed with no laser treatment, 224 and 229 ppm increase of concentration was observed when laser treated for 5 and 10 min. The rates of reaction of restructuring the particles sizes were 0.384, 0.408 and 0.4288 min^-1 at different laser exposure treatments times 0, 5 and 10 min, respectively. The FTIR results show significant (p < 0.05) increase in biomolecules concentration of aliphatic amines, alkenes (=C-H), alkanes (C-H), alcohol (O-H) and unsaturatedesters (C-O).

Laser Ablation, Silver Nanoparticles, Microwave, Aloe Vera, FTIR

Kassama, L. , Kuponiyi, A. and Kukhtareva, T. (2017) Effect of Laser Ablation on the Physicochemical Properties of Microwave-Assisted Synthesized AgNP in Aloe Vera (Aloe Barbadensis) Extract. Advances in Chemical Engineering and Science, 7, 393-407. doi: 10.4236/aces.2017.74028.