نتایج جستجو برای: chemical resistant

تعداد نتایج: 563987  

Journal: :Chemical communications 2012
Donna J Menzies Thomas Gengenbach John S Forsythe Nick Birbilis Graham Johnson Christine Charles Gail McFarland Richard J Williams Celesta Fong Patrick Leech Keith McLean Benjamin W Muir

Micropatterning of surfaces with varying chemical, physical and topographical properties usually requires a number of fabrication steps. Herein, we describe a micropatterning technique based on plasma enhanced chemical vapour deposition (PECVD) that deposits both protein resistant and protein repellent surface chemistries in a single step. The resulting multifunctional, selective surface chemis...

Journal: :international journal of environmental research 2011
g.t. eneke s.n. ayonghe d. chandrasekharam r. ntchancho a.a. ako

douala metropolitan city loated in the littoral province of cameroon,has experienced a rapid urbaniation and industralisation. the city depends heavily on groundwater as a resource. due to ubiquitous sources of pollution, groundwater quality and contamination has become an imprtant issue for this urban groundwater supply. this study uses the major ion chemistry of groundwater together with t...

2013
Jesús Martín Thiciana da S. Sousa Gloria Crespo Sara Palomo Ignacio González José R. Tormo Mercedes de la Cruz Matthew Anderson Russell T. Hill Francisca Vicente Olga Genilloud Fernando Reyes

A new thiazolyl peptide, kocurin (1), was isolated from culture broths of a marine-derived Kocuria palustris. Its structural elucidation was accomplished using a combination of spectroscopic and chemical methods, including HRMS, extensive 1D and 2D NMR analysis, MS/MS fragmentation, and chemical degradation and Marfey's analysis of the resulting amino acid residues. The structure herein reporte...

Journal: :The Journal of antibiotics 1975
C Coronelli R J White G C Lancini F Parenti

Lipiarmycin, a metabolite of Actinoplanes deccanensis nov. sp. (PARENTI et al.), has been isolated in pure form. It has a molecular formula C52 CONGRUENT TO 54H74 CONGRUENT TO 76Cl2O19, (M.W. = 1,073 CONGRUENT TO 1,099). From its chemical and physico-chemical characteristics, lipiarmycin can be considered a new antibiotic. Lipiarmycin is highly active against Gram-positive bacteria, includin...

Journal: :Environmental toxicology and chemistry 2003
Xiaoxia Lu Danny D Reible John W Fleeger Yunzhou Chai

We investigated bioavailability, as measured by the biota-sediment accumulation factor (BSAF), of reversibly sorbed and desorption-resistant phenanthrene to the deposit-feeding freshwater tubificid oligochaete Ilyodrilus templetoni. Desorption-resistant, phenanthrene-contaminated sediments were prepared by a sequential batch desorption method by washing with an isopropanol solution. The BSAFs a...

Journal: :International Journal of Current Research and Academic Review 2018

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