24 October 2016 Synthesis and characterization of uncoated and cysteamine-coated gold nanoparticles by pulsed laser ablation
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Abstract
Gold nanoparticles and cysteamine-coated gold nanoparticles are physically synthesized using the pulsed laser ablation in liquid technique, which is rapid, simple, and efficient one-step synthesis. UV-Vis analysis shows that the absorption band after cysteamine coating is shifted toward the lower wavelength range around ∼234  nm as compared to gold nanoparticles’ absorption band around ∼520  nm. Moreover, the change in the color of the solution is due to the aggregation of nanoparticles after cysteamine coating. From transmission electron microscopy, cysteamine coating of ∼1  nm thickness on gold nanoparticles is successfully carried out with narrow pore size distributions. Energy-dispersive x-ray spectroscopy analysis confirms the presence of cysteamine coating. Attenuated total reflectance Fourier transform infrared spectroscopy analysis also confirms the bond linkage between gold and cysteamine species.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Wan Norsyuhada Wan Shukri, Noriah Bidin, Shumaila Islam, Ganesan Krishnan, Mohamad Aizat Abu Bakar, Mohd Syafiq Affandi, "Synthesis and characterization of uncoated and cysteamine-coated gold nanoparticles by pulsed laser ablation," Journal of Nanophotonics 10(4), 046007 (24 October 2016). https://doi.org/10.1117/1.JNP.10.046007 . Submission:
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