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Antifungal Activity of Extracellular Hydrolases Produced by Autolysing Aspergillus nidulans Cultures
Melinda Szilágyi,Fruzsina Anton,Katalin Forgács,유재혁,István Pócsi,Tamás Emri 한국미생물학회 2012 The journal of microbiology Vol.50 No.5
Carbon-starving Aspergillus nidulans cultures produce high activities of versatile hydrolytic enzymes and, among these,ChiB endochitinase and EngA β-1,3-endoglucanase showed significant antifungal activity against various fungal species. Double deletion of engA and chiB diminished the antifungal activity of the fermentation broths and increased conidiogenesis and long-term viability of A. nidulans, but decreased the growth rate on culture media containing weak carbon sources. Production of ChiB and EngA can influence fungal communities either directly due to their antifungal properties or indirectly through their effects on vegetative growth. Our data suggest saprophytic fungi as promising future candidates to develop novel biocontrol technologies.
Direct grafting of carbon nanotubes with ethylenediamine
Gromov, Andrei V.,Gray, Nia,Szilá,gyi, Petra Á,gota,Campbell, Eleanor E. B. The Royal Society of Chemistry 2012 Journal of materials chemistry Vol.22 No.39
<P>Singlewall and multiwall carbon nanotubes were covalently functionalised with ethylenediamine (EDA) in a simple one-pot process providing a good surface coverage. The successful grafting of EDA on carbon nanotubes (CNTs) was shown by X-ray photoelectron spectroscopy (XPS), infrared and Raman spectroscopies and thermogravimetric analysis (TGA). These functionalised CNTs with terminal amino groups were shown to form composite polyamide materials with uniform CNT distribution in the polymer matrix.</P> <P>Graphic Abstract</P><P>Singlewall and multiwall carbon nanotubes were covalently functionalised with ethylenediamine (EDA) in a simple one-pot process providing a good surface coverage. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2jm33348a'> </P>