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The biological membrane lipid composition has been demonstrated to greatly influence the secretion of secondary metabolites. This study was conducted to investigate the periodical alterations of whole cellular lipids and their associations with secondary products in Trichoderma brevicompactum. An electrospray ionization–mass spectrometry-based lipidomics strategy was used to acquire the metabolic...
A new and simple experimental approach is proposed for the determination of iso-electric point (IEP) of nanoparticles suspension using ultraviolet–visible absorption spectroscopy. The suspension was first ultrasonicated to obtain appropriate particle dispersion and the optimal ultrasonication time was investigated by measuring the UV–vis spectra. The absorbance of the suspensions was then determined...
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