نتایج جستجو برای: polyether

تعداد نتایج: 1494  

آتشی, امیر, باقری, توران, حسینی, سید ابوذر, صابری, محسن, صالح, سحر, عراقی, شیرین, فاطمی, محمدجواد, چهرودی, شیرین,

Background: Acute and chronic wound healing has always been problematic. Stem cells with or without the scaffold carrying these cells have been proposed as new methods in the treatment of wounds. In this case study we have tried to examine the effect of scaffold made of polyether sulfone (PES) alone, with stem cells and along with stem cell and growth factor on wound healing in rats. Methods...

2017
Noof A. Alenazi Mahmoud A. Hussein Khalid A. Alamry Abdullah M. Asiri

Polyethersulfone has been widely used as a promising material in medical applications and waste-treatment membranes since it provides excellent mechanical and thermal properties. Hydrophobicity of polyethersulfone is considered one main disadvantage of using this material because hydrophobic surface causes biofouling effects to the membrane which is always thought to be a serious limitation to ...

Journal: :The Journal of antibiotics 1976
C M Liu R Evans L Fern T Hermann E Jenkins

A new polyether antibiotic, Ro 21-6150, has been isolated from culture broths of Streptomyces hygroscopicus, strain X-14563. Ro 21-6150 has ionophore properties and is active in vitro against gram-positive bacteria.

Journal: :Journal of the American Chemical Society 2005
Henry W B Johnson Utpal Majumder Jon D Rainier

This communication describes the total synthesis of the marine polyether toxin, gambierol. This work couples our iterative C-glycoside/enol ether-olefin metathesis strategy to the subunits with a unique olefin metathesis/carbonyl olefination reaction to bring the subunits together.

2017
Gabriela Albara Lando Letícia Marconatto Felipe Kessler William Lopes Augusto Schrank Marilene Henning Vainstein Daniel Eduardo Weibel

Synthetic polymers are the cause of some major environmental impacts due to their low degradation rates. Polyurethanes (PU) are widely used synthetic polymers, and their growing use in industry has produced an increase in plastic waste. A commercial polyether-based thermoplastic PU with hydrolytic stability and fungus resistance was only attacked by an entomopathogenic fungus, Metarhiziumanisop...

2015
Aman Kumar Arora Itanshu Goyal Monilka Sehgal

AIM The aim of the study is to analyze the effect of different materials and techniques in current use on peripheral shaping of complete denture impression. METHODS The present study was conducted to compare and evaluate the maxillary border morphology produced using tissue conditioner as control and low fusing impression compound, Polyether, Pattern resin and periphery wax as border molding ...

2009
Bin Lv Jianzhong Ma Dangge Gao Lei Hong Qing Yao

The Amphoteric Fatliquor (AF) was prepared by rapeseed oil, 1, 2-ethylenediamine and acrylic acid. An amphoteric fatliquor (SAF) modified with silicon was synthesized by using AF and polyether silicon with stirring and ultrasonic treatment. AF and SAF were measured by Fourier Transform Infrared Spectroscopy (FT-IR), thermogravimetry (TGA), emulsifying capacity, emulsification stability and emul...

2015
Poonam K. Khinnavar B. H. Dhanya Kumar D. B. Nandeeshwar

OBJECTIVES This study was planned to evaluate the dimensional stability of elastomers during cold sterilization or immersion disinfection and also to evaluate the same, along with acrylic resin trays which are used in clinical practice. MATERIALS AND METHODS A study mold according to revised American Dental Association. Specification no. 19 was used. Polyether, polyvinyl siloxane (PVS) (heavy...

Journal: :The Journal of Antibiotics 1980

Journal: :Journal of the agricultural chemical society of Japan 1991

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