Abstract
Metal nanoparticles have garnered recent attention due to their potential for use in various mechanical, electrical, chemical and optical applications. This study aimed to investigate the synthesis of silver nanoparticles using pulsed photo-acoustic (PA) spectroscopy techniques. The results indicated a linear relationship between absorbance and concentration. Additionally, stability of silver colloids was seen at room temperatures, with no aggregation. The nanoparticles were spherical and between 2-40 nm in diameter. Nanoparticle size and PA signal were inversely proportional. Furthermore, lack of nanoparticle stability was found to weaken the PA signal. Lastly, nanoparticle absorption was inversely proportional to fluorescence. Further studies are needed for exploring the rationale in the relationship between fluorescence and absorption of the nanoparticles.
Highlights
Recent years have seen the use of metal nanoparticles in a wide variety of electrical, mechanical, optical, biological, and chemical applications (Stepanov, 2016)
Silver nanoparticles may be prepared in variety of ways; such as, chemical reduction by utilizing a reducing agent (Iravani, et al, 2014), electrochemical reduction (Nasretdinova et al, 2015), photochemical reduction (Iravani, et al, 2014) and thermal evaporation (Kibis et al, 2010), which is inclusive of chemical vapor deposition
This study has aimed to investigate the synthesis of silver nanoparticles in aqueous solution through the use of PA-induced laser excitation
Summary
Recent years have seen the use of metal nanoparticles in a wide variety of electrical, mechanical, optical, biological, and chemical applications (Stepanov, 2016). Among the noble-metal nanoparticles, silver nanoparticles have gained attention due to their varied uses as catalysts (Bindhu & Umadevi, 2015) and photosensitive components (Dahiya, et al, 2015), in addition to their applications in surface-enhanced Raman spectroscopy (Grass et al, 2015). Their property of optical absorption enables them to be used as highly competent contrast agents in photoacoustic imaging (Homan et al, 2010). Preparation may be carried out physically by evaporating atoms from the surface of a metal by means of employing a high energy laser and cooling to form nanoparticles (Abbasi et al, 2016)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
