نتایج جستجو برای: eutectic mixture

تعداد نتایج: 97889  

2016
Tiia-Maria Tenhunen Minna Hakalahti Jarmo Kouko Arto Salminen Tiina Härkäsalmi Jaakko Pere Ali Harlin Tuomas Hänninen

A simple and inexpensive method for producing water-stable pulp fibre yarns using a deep eutectic mixture composed of choline chloride and urea (ChCl/urea) was developed in this work. Deep eutectic solvents (DESs) are eutectic mixtures consisting of two or more components that together have a lower melting point than the individual components. DESs have been previously studied with respect to c...

2018
Anna Zykova Lyudmila Kazantseva Natalya Popova Alexander Vorozhtsov Irina Kurzina

Using scanning and transmission electron microscopy, we studied silicon particles formed during the solidification of Al-7%Si alloy when different modifying mixtures were introduced into the melt: (1) a mixture of ultrafine powders Na3AlF6 + K2ZrF6 + TiO2 + ZrO2; (2) K2ZrF6; and (3) the flux Arsal. By differential scanning calorimetry, it was established that modifying mixtures significantly in...

Journal: :Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan 2008
Keiichi Ohzeki Masaki Kitahara Noriko Suzuki Kyoji Taguchi Yuki Yamazaki Shinji Akiyama Kentaro Takahashi Yasushi Kanzaki

Local anesthetic creams for the clinical treatment of conditions such as postherpetic neuralgia were prepared as an in-house formulation from the eutectic mixture of lidocaine-tetracaine (LT cream) using two eutectic mixtures of local anesthetic (EMLA) type bases. The LT formulation was compared with a lidocaine-prilocaine (LP cream) eutectic mixture formulated using the same base as EMLA. The ...

Journal: :Fluid Phase Equilibria 2022

In this study, the aqueous mixture viscosities of two phenolic DESs, consisting (1 ChCl: 3 phenol) and 4 phenol), were measured at atmospheric pressure over temperature range 293.15–333.15 K. According to data, values viscosity deviations for investigated systems calculated indicate deviating behavior with respect ideality. Both showed negative entire composition all temperatures. The Redlich-K...

Journal: :Chemical communications 2017
Zhengfei Chen Tamar L Greaves Gregory G Warr Rob Atkin

The melting point of a deep eutectic solvent formed from a ternary mixture of ethylammonium bromide (EABr), butylammonium bromide (BABr) and urea is 10 °C, which is almost 40 °C lower than the melting points of binary DESs formed from either EABr:urea or BABr:urea mixtures. This reveals a new route to prepare room temperature DESs via mixing different cations.

Journal: :Chemical communications 2014
Dibyendu Mondal Jitkumar Bhatt Mukesh Sharma Shruti Chatterjee Kamalesh Prasad

DNA (Salmon testes) was functionalized by Fe3O4 nanoparticles and protonated layered dititanate sheets (H2·Ti2O5·H2O) in a mixture of choline chloride and ethylene glycol (a deep eutectic solvent) to yield a hybrid material having magnetic and antibacterial properties. Ti sheets were found to interact with the phosphate moieties, while Fe interacted with the base pair of DNA in the hybrid mater...

Journal: :JPMA. The Journal of the Pakistan Medical Association 2014
Mahdi Basiri-Moghadam Mojtaba Kianmehr Saeid Pasban-Noghabi Kokab Basiri-Moghadam

OBJECTIVE To assess the effect of Eutectic Mixture of Local Anaesthetics cream and rattle on soothing the vaccination pain on four-month-infants. METHODS The single blind randomised clinical trial was conducted from May 2012 to February 2013 at a clinic under the Gonabad University of Medical Sciences, Iran, and comprised four-month infants who were selected randomly and divided into three gr...

Journal: :Chemical communications 2014
María J Rodríguez-Álvarez Cristian Vidal Josefina Díez Joaquín García-Álvarez

Cycloisomerisation of γ-alkynoic acids into cyclic enol-lactones was conveniently performed, for the first time, in the eutectic mixture 1ChCl/2Urea under standard bench experimental conditions (at room temperature, under air and in the absence of co-catalysts) by using a new iminophosphorane-Au(I) complex as the catalyst. Furthermore, the catalytic system could be recycled up to four runs.

Journal: :Actas dermo-sifiliograficas 2008
I Cervigón L M Torres-Iglesias A Palomo

Actas Dermosifiliogr. 2008;99:493-501 499 Given that most women with chronic discoid lupus are of childbearing age, it is encouraging to encounter a treatment that allows for patients to plan pregnancies more easily. Similarly, we stress that maintenance treatment with lower doses of isotretinoin (20 mg/d) can be useful, allowing lesions to be controlled with reduced systemic side effects. Refe...

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