Gold Nanoparticles Synthesis Using Environmentally Friendly Approach for Inhibition Human Breast Cancer

2020 ◽  
Vol 19 (05) ◽  
pp. 1950040 ◽  
Author(s):  
Neran Ali Thamer ◽  
Ban. H. Adil ◽  
A. S. Obaid
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Spherical Shape ◽  
Average Crystallite Size ◽  
Single Step ◽  
Thymus Vulgaris ◽  
Face Centered Cubic ◽  
The Face

In this study, gold nanoparticles were synthesized in a single step biosynthetic method using aqueous leaves extract of thymus vulgaris L. It acts as a reducing and capping agent. The characterizations of nanoparticles were carried out using UV-Visible spectra, X-ray diffraction (XRD) and FTIR. The surface plasmon resonance of the as-prepared gold nanoparticles (GNPs) showed the surface plasmon resonance centered at 550[Formula: see text]nm. The XRD pattern showed that the strong four intense peaks indicated the crystalline nature and the face centered cubic structure of the gold nanoparticles. The average crystallite size of the AuNPs was 14.93[Formula: see text]nm. Field emission scanning electron microscope (FESEM) was used to study the morphology of the AuNPs. AuNPs exhibited a spherical shape with diameters ranging 13–53[Formula: see text]nm. The synthesized stable gold nanoparticles showed more significant anticancer activity against MCF-7 and CAL-51 cells after 48[Formula: see text]h.

scholarly journals Preparation of Nanoparticles in an Eco- friendly Method using Thyme Leaf Extracts

2020 ◽  
Vol 17 (2(SI)) ◽  
pp. 0670
Author(s):  
Jomana Rakaa et al.
Keyword(s):  
Spherical Shape ◽  
Average Crystallite Size ◽  
Single Step ◽  
Face Centered Cubic ◽  
X Ray Diffraction ◽  
Leaf Extracts ◽  
Xrd Pattern ◽  
The Face ◽  
Crystalline Nature ◽  
Face Centered

Colloidal silver nanoparticles were prepared by single step green synthesis using aqueous extracts of the leaves of thyme as a function of different molar concentration of AgNO3 (1,2,3,4 mM(. The Field Emission Scanning Electron Microscopy (FESEM), UV-Visible and X-ray diffraction (XRD) were used to characterize the resultant AgNPs. The surface Plasmon resonance was observed at wavelength of 444 nm. The four intensive peaks of XRD pattern indicate the crystalline nature and the face centered cubic structure of the AgNPs. The average crystallite size of the AgNPs ranged from 18 to 22 nm. The FESEM image illustrated the well dispersion of the AgNPs and the spherical shape of the nanoparticles with a particle size distribution between 13 to 50 nm.

scholarly journals Nanocrystalline TiO2 Sensitive Layer for Plasmonic Hydrogen Sensing

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1490
Author(s):  
Enrico Gazzola ◽  
Michela Cittadini ◽  
Marco Angiola ◽  
Laura Brigo ◽  
Massimo Guglielmi ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon ◽  
Surface Plasmon Resonance Sensor ◽  
Sensitive Layer ◽  
Plasmonic Sensor ◽  
Nanocrystalline Tio2 ◽  
Resonance Sensor

Solution processed TiO2 anatase film was used as sensitive layer for H2 detection for two plasmonic sensor configurations: A grating-coupled surface plasmon resonance sensor and a localized surface plasmon resonance sensor with gold nanoparticles. The main purpose of this paper is to elucidate the different H2 response observed for the two types of sensors which can be explained considering the hydrogen dissociation taking place on TiO2 at high temperature and the photocatalytic activity of the gold nanoparticles.

scholarly journals Surface plasmon resonance in CdSe semiconductor coated with gold nanoparticles

2008 ◽  
Vol 16 (9) ◽  
pp. 6202 ◽  
Author(s):  
A. K. Pradhan ◽  
R. B. Konda ◽  
H. Mustafa ◽  
R. Mundle ◽  
O. Bamiduro ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance
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