1 research outputs found
Green synthesis of gold nanoparticles by the marine microalga Tetraselmis suecica
The application of green-synthesis principles is one
of the most impressive research fields for the
production of nanoparticles. Different kinds of biological
systems have been used for this purpose. In
the present study, AuNPs (gold nanoparticles) were
prepared within a short time period using a fresh cell
extract of the marine microalga Tetraselmis suecica
as a reducing agent of HAuCl4 (chloroauric acid)
solution. The UV–visible spectrum of the aqueous
medium containing AuNPs indicated a peak at 530 nm,
corresponding to the surface plasmon absorbance of
AuNPs. The X-ray diffraction pattern also showed a
Bragg reflection related to AuNPs. Fourier-transform
infrared spectroscopy was performed for analysis of
surface functional groups of AuNPs. Transmission
electron microscopy and particle-size-distribution patterns
determined by the laser-light-scattering method
confirmed the formation of well-dispersed AuNPs. The
most frequent size of particles was 79 nm