Výsledky vyhledávání - "Samira Dorostkar"

Synthesis of highly stable silver nanoparticles using imidazolium-based ionic liquid

Publikováno v: Journal of the Iranian Chemical Society. 13:689-693

Highly stable, aqueous dispersions, and hydrophilic ionic liquid-capped silver nanoparticles with positive surface charge were synthesized by in situ reduction of AgNO3 with NaBH4 in the presence of an imidazolium-based ionic liquid, viz., 1-dodecyl-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b952af0fdc4f376ecf32e7bf8706f735
https://doi.org/10.1007/s13738-015-0781-y

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The Effect of Charge at the Surface of Silver Nanoparticles on Antimicrobial Activity against Gram-Positive and Gram-Negative Bacteria: A Preliminary Study

Autor: Hashem Sharghi, Bahram Hemmateenejad, Samira Dorostkar, Abbas Abbaszadegan, Yasamin Ghahramani, Mohammadreza Nabavizadeh, Ahmad Gholami

Publikováno v: Journal of Nanomaterials, Vol 2015 (2015)

The bactericidal efficiency of various positively and negatively charged silver nanoparticles has been extensively evaluated in literature, but there is no report on efficacy of neutrally charged silver nanoparticles. The goal of this study is to eva

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d6f374780eed4a544b372b38914e6be
https://doi.org/10.1155/2015/720654

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The Effects of Different Ionic Liquid Coatings and the Length of Alkyl Chain on Antimicrobial and Cytotoxic Properties of Silver Nanoparticles

Autor: Abbas, Abbaszadegan, Ahmad, Gholami, Sara, Abbaszadegan, Zeynab Sadat, Aleyasin, Yasamin, Ghahramani, Samira, Dorostkar, Bahram, Hemmateenejad, Younes, Ghasemi, Hashem, Sharghi

Publikováno v: Iranian Endodontic Journal

Introduction: The antibacterial efficacy and toxicity of silver nanoparticles (AgNPs) depends on their physicochemical properties including size, shape, surface charge and surface coatings. The Objectives of this study were: i) To synthesize and char

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::fd76e80db4de7b978ce1d4860840b223
https://pubmed.ncbi.nlm.nih.gov/29225645

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Antibiofilm Efficacy of Positively Charged Imidazolium-Based Silver Nanoparticles in Enterococcus faecalis Using Quantitative Real-Time PCR

Autor: Abbas Abbaszadegan, Mohammadreza Nabavizadeh, Bahram Hemmateenejad, Azam Safari, Zahra Kadkhoda, Samira Dorostkar, Ahmad Gholami, Hosein Mirhadi, Younes Ghasemi, Hashem Sharghi

Publikováno v: Jundishapur Journal of Microbiology. 10

Background: Nanoparticles are made by different methodologies, which can affect the particle’s features. Recently, imidazolium-coated silver nanoparticles with a positive surface charge (PC Im-based AgNPs) have revealed favorable results as a root

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f7ac9093340a006dd1abc4197cc5d369
https://doi.org/10.5812/jjm.55616

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Mechanistic Investigation on Dynamic Interfacial Tension Between Crude Oil and Ionic Liquid Using Mass Transfer Concept

Autor: Bahram Hemmateenejad, Samira Dorostkar, Moein Nabipour, Ali Zeinolabedini Hezave, Shahab Ayatollahi

Publikováno v: Journal of Dispersion Science and Technology. 35:1483-1491

Ionic liquids (ILs) are a new kind of solvents that have recently gained an upsurge in attention in light of their unique potential for different applications. With respect to this, in the present study, applicability of an IL called 1-octadecyl-3-me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0e93910c05dbfa3ea935f5112a172179
https://doi.org/10.1080/01932691.2013.844075

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Identification of the Source of Geographical Origin of Iranian Crude Oil by Chemometrics Analysis of Fourier Transform Infrared Spectra

Autor: Samira Dorostkar, Bahram Hemmateenejad

Publikováno v: Energy & Fuels. 28:761-765

In this paper, we analyzed the crude oils of five different regions of Iran to identify their sources of geographical origin. The Fourier transform infrared (FTIR) spectra of samples were analyzed by chemometrics methods to make discrimination betwee

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ab7f26f8ba9dbbb195ac05107cf2b8f
https://doi.org/10.1021/ef4017202

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Effect of different families (imidazolium and pyridinium) of ionic liquids-based surfactants on interfacial tension of water/crude oil system

Autor: Shahab Ayatollahi, Bahram Hemmateenejad, Moein Nabipour, Samira Dorostkar, Ali Zeinolabedini Hezave

Publikováno v: Fluid Phase Equilibria. 360:139-145

Interfacial tension between crude oil and water plays a significant role in enhanced oil recovery. Many researchers seek surfactants to reduce the interfacial tension of crude oil and water that can be applicable in reservoir conditions of high salin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::662c28487f2e74357d863cb78d184b7b
https://doi.org/10.1016/j.fluid.2013.09.025

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Dynamic interfacial tension behavior between heavy crude oil and ionic liquid solution (1-dodecyl-3-methylimidazolium chloride ([C12mim][Cl]+distilled or saline water/heavy crude oil)) as a new surfactant

Autor: Ali Zeinolabedini Hezave, Shahab Ayatollahi, Samira Dorostkar, Bahram Hemmateenejad, Moein Nabipour

Publikováno v: Journal of Molecular Liquids. 187:83-89

Remaining oil after primary and secondary oil recovery processes is the target of enhanced oil recovery (EOR) methods. One of an efficient EOR method is chemical flooding changes several parameters lead to higher oil recovery. One of the parameters c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::71f9fd5574d54bc7778a5a7a7a67da0e
https://doi.org/10.1016/j.molliq.2013.05.007

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Investigating the effect of ionic liquid (1-dodecyl-3-methylimidazolium chloride ([C12mim] [Cl])) on the water/oil interfacial tension as a novel surfactant

Autor: Moein Nabipour, Samira Dorostkar, Bahram Hemmateenejad, Shahab Ayatollahi, Ali Zeinolabedini Hezave

Publikováno v: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 421:63-71

It is estimated that two-thirds of crude oil remains in the oil reservoirs after primary and secondary (water flooding) recovery stages. The extent of residual oil trapped in the reservoir pore structure is dominated by capillary and interfacial forc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::87f9bdfb253bf6ceae57d362be48f48c
https://doi.org/10.1016/j.colsurfa.2012.12.008

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Label-free colorimetric detection of picomolar amounts of hydrazine using a gold nanoparticle-based assay

Autor: Bahram Hemmateenejad, Samira Dorostkar

Publikováno v: Journal of the Iranian Chemical Society. 10:513-519

We report the development of a simple and rapid colorimetric detection method for hydrazine in boiler feed water using label-free aggregation-based gold nanoparticles as probe. This assay relies upon the distance-dependent optical properties of gold

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b9df975da3ad06af5873c61e237218b
https://doi.org/10.1007/s13738-012-0186-0

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