Fabrication and characterization of gold nanoparticles by femtosecond laser ablation in an aqueous solution of cyclodextrins

Article Abstract:

The gold nanoparticles were produced by femtosecond laser ablation of a gold metal plate in an aqueous solution of alpha-cyclodextrins (CD), beta-CD, or gamma-CD. The size distribution of the nanoparticles measured by transmission electron microscopy (TEM) shifted to a drastically smaller size of ~2-2.4 nm and narrower size distribution of less than 1-1.5 nm fwhm with an increase in the concentration of cyclodextrin.

Analysis, Usage, Optical properties, Transmission electron microscopes, Cyclodextrins, Aqueous solution reactions

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Comparative investigation of energy relaxation dynamics of gold nanoparticles and gold-polypyrrole encapsulated nanoparticles

Article Abstract:

A study is conducted to compare investigation of energy relaxation dynamics of gold nanoparticles and gold-polypyrrole encapsulated nanoparticles. The results indicate that directly attached polypyrroles provide fast thermal energy transfer pathways for the core gold nanoparticles.

Science & research, Research, Thermal properties, Atomic properties, Dendrimers

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