Abstract
The object of research is studying Raman scattering technique, photoluminescence and some optical properties of silver nanoparticles created by eco-friendly technique which independent on a long time, effort, energy and high temperatures, and with the highest adsorption capacity in order to achieve a high inhibition to paralyze the activity of the bacterial wall, by achieving the highest surface plasmon resonance (SRR). Silver nanoparticles were prepared using Matricaria Flower extract. Characterization of silver nanoparticles and detection of their effectiveness against microbial using two types of bacteria (Escherichia Coli and Staphylococcus aureus ), these nanoparticles were measured using a number of measurements, X-ray diffraction measurement, Energy Dispersion (EDX), (FESEM), U–V Spectroscopy, Fourier Transform Infrared (FTIR), Photoluminescence (PL) properties of silver nanoparticle at room temperature and Raman scattering spectroscopy were investigated. The Scherrer’s equation was used to calculate the crystallite size of Silver nanoparticles, the average crystallite size is 48.64 nm. The PL spectra of silver nanoparticles exhibit two emission bands: one is in the UV region 350 nm and the other is in the visible region 650 nm. This is roughly identical to the absorption spectrum results. The antimicrobial activity was tested against gram negative bacteria (Escherichia coli) and gram positive bacteria (Staphylococcus aureus). Prepared Ag NPs exhibited inhibitory activity in both types of bacteria strains at best selectivity against gram-negative bacteria.
 An eco-friendly technique is used for synthesizing technique to produce silver nanoparticles with the expected best application properties. These research results suitable to be use the Silver nanoparticles in sensors and many electronic, electrical, medical and biological applications
Highlights
Nano-science is known as the science of nanomaterials
Raman scattering technique and photoluminescence experiments were carried out in order to study the optical emission of silver nanoparticles which arises from the Surface Plasmon Resonance (SPR) predicated on the collective oscillation of conduction electrons created by an electromagnetic field [7]
Raman scattering technique and photoluminescence experiments were carried out in order to study the optical emission of silver nanoparticles: A
Summary
Nano-science is known as the science of nanomaterials. It is a new field of researchers dealing with nanoparticles with a diameter of less than 100 nm. Nanotechnology is widely used in medicinal chemistry, physics and other fields. Materials whose crystal size is less than 100 nm are called nanocrystals [1]. Nanotechnology has led to great advances in the field of biomedicine, like drug delivery, and check the structure of DNA [2]. Nanoparticles are great importance in nano technology, as it shows new properties of matter, its primary function is biological extermination,
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