نتایج جستجو برای: inverse emulsification polymerization

تعداد نتایج: 122545  

2006
Johannes Huber Stefan Mecking

INTRODUCTION The discovery of the conductive properties of conjugated organic polymers in the late 1970s initiated intense investigations of their synthesis, chemistry and physical properties. Today, they are widely studied for various applications, e.g. optoelectronics in displays or organic solar cells. Beyond general academic curiosity towards the generation and properties of unusual nanostr...

In this research thin film heterogeneous cation exchange membrane was prepared by interfacial polymerization of polyacrylic acid-co-iron nickel oxide nanoparticle son PVC based substrate. Spectra analysis confirmed graft polymerization conclusively. The SEM images showed that polymerized layer covers the membranes by simple gel network entanglement. Results exhibited that membrane water content...

2012
Guang Liu Xiaoyun Hong Mier Jiang Weien Yuan

BACKGROUND The main treatments for cancers are still chemotherapy and radiotherapy for intermediate-stage cancer and terminal cancer. However, the therapeutic methods often result in a decreased neutrophilic granulocyte count and other side effects. In this study, in order to improve the neutrophilic granulocyte levels in the blood after radiotherapy and chemotherapy, we developed a sustained-r...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
sana berijani golnar ahmadi

in this work, an environmentally friendly sample pre-treatment method, ultrasound assisted surfactant enhanced emulsification microextraction (uaseme) followed with spectrofluorimetry was performed for determination of oxadiazon residues in water samples. after the determination of the most suitable extraction solvent and its volume, other parameters such as type and concentration of surfactant...

Journal: :journal of chemical health risks 0
manoochehr bahmaei department of chemistry, north tehran branch, islamic azad university, tehran, iran faezeh khalilian department of chemistry, college of basic science, yadegar -e- imam khomeini (rah) branch, islamic azad university, tehran, iran hossein ali mashayekhi department of chemistry, tonekabon branch, islamic azad university, tonekabon, iran

in this study, simple and efficient ultrasound-assisted emulsification microextraction (usaeme) combined with gas chromatography-flame ionization detector (gc-fid) was developed for the preconcentration and determination of carbamazepine in biological samples. in this method, the fine droplets of 1-octanol were formed and dispersed in the sample with the help of ultrasonic waves, which accelera...

2012
Malar A. Azagarsamy Daniel L. Alge Srinidhi J. Radhakrishnan Mark W. Tibbitt Kristi S. Anseth

We describe here light-regulated swelling and degradation features of polymeric nanoparticles that are produced using an inverse microemulsion polymerization method. We demonstrate the phototriggered release characteristics of the nanoparticles by sequestering protein molecules and releasing them using light as a trigger. Furthermore, the intracellular translocation of the nanoparticles, along ...

2017
Alexandre Courchesne-Loyer Carolyn-Mary Lowry Valérie St-Pierre Camille Vandenberghe Mélanie Fortier Christian-Alexandre Castellano J Richard Wagner Stephen C Cunnane

Background: Lower-brain glucose uptake is commonly present before the onset of cognitive deterioration associated with aging and may increase the risk of Alzheimer disease. Ketones are the brain’s main alternative energy substrate to glucose. Medium-chain triglycerides (MCTs) are rapidly b-oxidized and are ketogenic but also have gastrointestinal side effects. We assessed whether MCT emulsifica...

Journal: :Advanced Functional Materials 2023

Spontaneous emulsification, resulting from the assembly and accumulation of surfactants at liquid–liquid interfaces, is an interfacial instability where microdroplets are generated diffusively spread interface until complete emulsification. Here, it shown that external magnetic field can modulate paramagnetic nanoparticle (NPSs) interfaces to trigger oversaturation in areal density NPSs interfa...

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