Results 21 to 30 of about 404,078 (317)

A catalyst for change [PDF]

Canadian Medical Association Journal, 2006
The Journal's Editor in Chief, John Hoey, and Senior Deputy Editor, Anne Marie Todkill, were dismissed on Feb. 20, 2006. Their departure is a blow to the CMAJ , Canadian physicians and the international scientific and medical communities.
Stephen, Choi, Ken, Flegel, Claire, Kendall, Anita, Palepu, Eric, Wooltorton, Sally, Murray, Nick, Barrowman   +6 more
openaire   +2 more sources

A catalyst for change [PDF]

Eye, 2020
NHS long term plan. 2019. https://www.longtermplan.nhs.uk/. Accessed August 2020. NHS Digital. Hospital Episode Statistics – Outpatient and Admitted Patient Care 2010–2019. https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics. Accessed August 2020.
Parul Desai, David Parkins, Zoe Richmond
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Convenient synthesis of dipeptide structures in solution phase assisted by a thioaza functionalized magnetic nanocatalyst

Scientific Reports, 2022
In this study, a heterogeneous nanocatalyst is presented that is capable to efficiently catalyze the synthetic reactions of amide bond formation between the amino acids. This nanocatalyst which is named Fe3O4@SiO2/TABHA (TABHA stands for thio-aza-bicyclo-
Reza Taheri-Ledari, Fereshteh Rasouli Asl, Mahdi Saeidirad, Amir Kashtiaray, Ali Maleki   +4 more
doaj   +1 more source

Synthesis and characterization of nanocatalyst Cu2+/mesoporous carbon for amidation reactions of alcohols

Scientific Reports, 2023
In this research, mesoporous carbon (MC) with high efficiency (0.65 g yield from 1.0 g MCM-41 and 1.25 g sucrose) was successfully prepared by adding carbon precursor (sucrose) in a single step with ultrasonic waves, which reduces time and energy cost ...
Hossein Ghafuri, Peyman Hanifehnejad, Afsaneh Rashidizadeh, Zeinab Tajik, Hanieh Dogari   +4 more
doaj   +1 more source

Assessment of catalytic and antibacterial activity of biocompatible agar supported ZnS/CuFe2O4 magnetic nanotubes

Scientific Reports, 2022
The tubular magnetic agar supported ZnS/CuFe2O4 nanocomposite was fabricated via a simple procedure. Next, various properties of this nanocomposite were studied by employing multiple characterization techniques including FT-IR, EDX, SEM, TEM,VSM, XRD ...
Fereshte Hassanzadeh-Afruzi, Zeinab Amiri-Khamakani, Shahrzad Bahrami, Mohammad Reza Ahghari, Ali Maleki   +4 more
doaj   +1 more source

Efficient and Green Synthesis of Acridinedione Derivatives Using Highly Fe₃O₄@Polyaniline-SO₃H as Efficient Heterogeneous Catalyst

Chemistry Proceedings, 2021
In the present investigation, an efficient heterogeneous catalyst system made of a polyaniline-derived polymer (Poly [anthranilic acid]-[N-(1′,3′-phenylenediamino) −3-butane sulfonate]) and iron oxide nanoparticles (Fe3O4 NPs) is presented. Firstly, this
Hossein Ghafuri, Shahram Moradi, Nastaran Ghanbari, Haniyeh Dogari, Mostafa Ghafori   +4 more
doaj   +1 more source

Guanidinylated SBA-15/Fe3O4 mesoporous nanocomposite as an efficient catalyst for the synthesis of pyranopyrazole derivatives

Scientific Reports, 2021
In this study, a novel mesoporous nanocomposite was fabricated in several steps. In this regard, SBA-15 was prepared by the hydrothermal method, next it was magnetized by in-situ preparation of Fe3O4 MNPs.
Fereshte Hassanzadeh-Afruzi, Somayeh Asgharnasl, Sara Mehraeen, Zeinab Amiri-Khamakani, Ali Maleki   +4 more
doaj   +1 more source

Functionalization of magnetic nanoparticles by creatine as a novel and efficient catalyst for the green synthesis of 2-amino-4H-chromene derivatives

Scientific Reports, 2022
By employing the naturally-originated molecule of creatine, Fe3O4@SiO2-creatine as an environmentally benign magnetic organometallic nanobiocatalyst was successfully prepared via a convenient and green route. Then to acquire an inclusive comprehension of
Reza Eivazzadeh-Keihan, Shahrzad Bahrami, Mostafa Ghafori Gorab, Zahra Sadat, Ali Maleki   +4 more
doaj   +1 more source

A diselenobis-functionalized magnetic catalyst based on iron oxide/silica nanoparticles suggested for amidation reactions

Scientific Reports, 2022
In this study, a new heterogeneous magnetic catalytic system based on selenium-functionalized iron oxide nanoparticles is presented and suggested for facilitating amide/peptide bonds formation.
Reza Taheri-Ledari, Fateme Sadat Qazi, Mahdi Saeidirad, Ali Maleki   +3 more
doaj   +1 more source

Spectroscopic characterization of two peroxyl radicals during the O2-oxidation of the methylthio radical

Communications Chemistry, 2022
The atmospheric oxidation of dimethyl sulfide affects the Earth’s climate, but the intricate pathways of this complex reaction are still not fully described.
Zhuang Wu, Xin Shao, Bifeng Zhu, Lina Wang, Bo Lu, Tarek Trabelsi, Joseph S. Francisco, Xiaoqing Zeng   +7 more
doaj   +1 more source