MALDI LIFT-TOF/TOF mass spectra of fullerene C60 and six of its derivatives, methano[60]fullerene carboxylic acid, its ethyl ester, diethyl methano[60]fullerene dicarboxylate, and three isomeric tetraethyl bis-methano[60]fullerene tetracarboxylates (compounds I–VII, respectively) as model analytes were recorded and discussed. This technique used in mass spectrometry for the first time is propos...

ESI-Q-TOF and MALDI-TOF/TOF mass spectrometers were utilized to elucidate the macromolecular structures of linear poly(ethylene imine) (PEI) polymers, which are of importance in gene delivery. A detailed characterization of linear PEIs was performed by tandem mass spectrometry (MS/MS). This study provides important information with regard to the fragmentation mechanism of PEI polymers and the c...

Abstract The objective of this study was to use matrix-assisted laser desorption ionisation–time flight mass spectrometry (MALDI-TOF MS) for the identification ovine-associated staphylococci. Presumptive Staphylococcus isolates were recovered from ovine udder surface (US), individual raw milk, bulk tank and cheese samples characterised by conventional phenotypic methods. A total 69 bacterial fu...

BACKGROUND With wide applications of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF MS), statistical comparison of serum peptide profiles and management of patients information play an important role in clinical studies, such as early diagnosis, personalized ...