Preparation of Ag nanoparticles via pulsed laser ablation in liquid for biological applications

Ammar M. Noori

doi:10.30723/ijp.v15i34.132

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Publication Date

Tue Jan 08 2019

Journal Name

Iraqi Journal Of Physics

Volume

15

Issue Number

34

DOI

10.30723/ijp.v15i34.132

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Preparation of Ag nanoparticles via pulsed laser ablation in liquid for biological applications

Ag nanoparticles

staphylococcus

Escherichia coli bacteria.

Ammar M. Noori

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Ag nanoparticles were prepared using Nd:YAG laser from Ag matel in distilled water using different energies laser (100 and 600) mJ using 200 pulses, and study the effect of the preparation conditions on the structural characteristics of and then study the effect of nanoparticles on the rate of killing the two types of bacteria particles (Staph and E.coli). The goal is to prepare the nanoparticle effectively used to kill bacteria.

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Publication Date

Tue May 17 2022

Journal Name

Egyptian Journal Of Chemistry

Determination of Ferrous Ion in Pure & Pharmaceutical Preparation by Continuous Flow Injection Analysis Via Turbidmetric Utilizing NAG-4SX3-3D Analyzer

Sarah

Nagham S. Turkey

Conference

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(3)

Publication Date

Sun Sep 28 2025

Journal Name

Journal Of Physical Education

Analysis of Training Load During the Special Preparation and Competition Periods Using Physiological Indicators in U19 Football Players via Smart Bracelet

Yousef

Mahdi

Safwan

Jassim

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The importance of the study lies in highlighting the role of smartwatches as a modern tool for analyzing training load based on functional indicators, such as heart rate and calorie consumption. This allows coaches to monitor individual players’ responses during different training periods, helping to improve physical performance efficiency and reduce the risk of overload-induced fatigue. The study aimed to analyze calorie consumption at different heart rate levels between the special preparation and competition periods for youth football players, with the goal of determining the effect of physiological adaptation on energy efficiency. To achieve this objective, the researcher adopted the descriptive method due to its suitability f

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Publication Date

Tue May 02 2023

Journal Name

Journal Of Optoelectronics And Advanced Materials

Preparation of samarium doped-PMMA composite by casting method to evaluate the optical properties and potential applications

Hanaa

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Samarium ions (Sm +3), a rare-earth element, have a significant optical emission within the visible spectrum. PMMA samples, mixed with different ratios of SmCl3.6H2O, were prepared via the casting method. The composite was tested using UV-visible, photoluminescence and thermogravimetric analysis (TGA). The FTIR spectrometry of PMMA samples showed some changes, including variation in band intensity, location, and width. Mixed with samarium decreases the intensity of the CO and CH2 stretching bands and band position. A new band appeared corresponding to ionic bonds between samarium cations with negative branches in the polymer. These variations indicate complex links between the Sm +3 ion and oxygen in the ether group. The optical absorption

Publication Date

Sat Oct 01 2022

Journal Name

Environmental Advances

Stability and performance studies of emulsion liquid membrane on pesticides removal using mixture of Fe3O4Â nanoparticles and span80

The current study investigated the impact of nonionic surfactant span 80 in the existence of Fe3O4 magnetic nanoparticles on the emulsification of mixture of kerosene as petroleum based organic solvents and corn oil as a green diluent in the ratio 1:1

HCl was used as internal phase and the stability of the emulsion was carried out. The proposed Pickering emulsion liquid membrane has been exploited to investigate it is ability in the extraction of Abamectin pesticides from aqueous solution without utilizing carrier agent. Further

the effects of experimental parameters on extraction efficiency and emulsion stability such as

homogenizer speed

emulsification speed

contact time

Fe3O4-Span 80 ratios

HCL concentration

internal to membrane volume ratio (I/O) and pH of the external feed solution were carried out. The results showed that more than 99% of Abamectin could be extracted at 10 min contact time with a minimum breakage percent of 0.52% at the optimal conditions. The kinetic of the extraction were studied and the mass transfer coefficient was found to be for external phase () of 1.2

interfacial reaction rate constant () of 5.83 and the overall mass transfer coefficient () of 3.91 . The results of recyclability of the PELM revealed that the emulsion stability and extraction efficiency was nearly unchanged after three cycles.

Ahmed A.

Noor Q.

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Publication Date

Sat Jan 05 2019

Journal Name

Iraqi Journal Of Physics

Ag-SiO2 nanoparticales prepared by Sol-Gel methods for antibacterial effect

Sol-gel

Silica-silver

antibacterial

characterized

biofilm and antimicrobial activity.

Ch. H.

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Sol-gel method was use to prepare Ag-SiO2 nanoparticles. Crystal structure of the nanocomposite was investigated by means of X-ray diffraction patterns while the color intensity was evaluated by spectrophotometry. The morphology analysis using atomic force microscopy showed that the average grain sizes were in range (68.96-75.81 nm) for all samples. The characterization of Ag-SiO2 nanoparticles were investigated by using Scanning Electron Microscopy (SEM). Ag-SiO2 NPs are highly stable and have significant effect on both Gram positive and negative bacteria. Antibacterial properties of the nanocomposite were tested with the use of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) bacteria. The results have shown antibacteri

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(1)

Publication Date

Sun Mar 06 2016

Journal Name

Baghdad Science Journal

Synthesis and Characterization of Some New Azo Dyes Derivatives Via Chalcone and Study Some of Their Biological Activity

"Heterocyclic

Azo dyes

Benzylideneacetophenone

Thiazine

Oxazine"

Hilal Masoud

Maysoon Tariq

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This work includes synthesis of new six membered heterocyclic rings with effective amino group using the reaction of benzylideneacetophenone (chalcone) (1) with thiourea or urea in alcoholic basic medium to form: 1,3-thiazen-2-amine (2), and 1,3-oxazin-2-amine (8) respectively. The diazotization reaction was carried out with sodium nitrite in presence of hydrochloric acid to form diazonium salts which suffered coupling reaction with naphthols and phenols in the presence of sodium hydroxide to form colored azo dyes (4-7, and 10-13). o-methylation reaction of compounds (7) and (10) yielded : 1,3-thiazin -2-yl-diazenyl (14), and 1,3-oxazin-2-yl-diazenyl (15) respectively.The new compounds were characterized using vario

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(3)

Publication Date

Fri Dec 01 2023

Journal Name

Russian Journal Of General Chemistry

Preparation, Characterization, and Biological Activity of Mixed Schiff Base Ligand Complexes with Amino Acid L-Proline

N. M.

S. M. H.

Mazin Hasan

Taghreed Hashim

Salam R.

Aly

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(10)

Publication Date

Mon Jan 01 2018

Journal Name

Asian Journal Of Chemistry

Preparation, Characterization and Biological Activity of New Tridentate Imine-Oxime Ligand (H2L) and Its Metal Complexes

Ali

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Publication Date

Fri Dec 01 2023

Journal Name

Russian Journal Of General Chemistry

Preparation, Characterization, and Biological Activity of Mixed Schiff Base Ligand Complexes with Amino Acid L-Proline

Taghreed

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Publication Date

Wed Feb 14 2024

Journal Name

Russian Journal Of General Chemistry

Preparation, Characterization, and Biological Activity of Mixed Schiff Base Ligand Complexes with Amino Acid L-Proline

N. M.

S. M. H.

M. H.

Taghreed H.

S. R.

A.

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