Magnetic nanocomposite-based SELDI probe for extraction and detection of drugs, amino acids and fatty acids

Effect of plasma oxynitriding temperature on wear and corrosion resistance of the AISI 4140 steel

“…The Fe 2p states of the PNO-450, PNO-500, and PNO-540 are observed at 710 and 723 eV with satellite peaks at 719.5 and 730.2 eV. 20 Also, the O 2p states of the PNO-450, PNO-500, and PNO-540 are observed at 530.2, 531.5, and 533.5 eV. 21 The results indicate that oxide layers contain the oxidation states of Fe 2+ and Fe 3+ , and O 2− regardless of the processing temperature.…”

“…In order to investigate the oxidation states of the oxide layers formed at different temperatures, the XPS analyses of the PNO‐450, PNO‐500, and PNO‐540 were performed, and the results are shown in Figure 5. The Fe 2p states of the PNO‐450, PNO‐500, and PNO‐540 are observed at 710 and 723 eV with satellite peaks at 719.5 and 730.2 eV 20 . Also, the O 2p states of the PNO‐450, PNO‐500, and PNO‐540 are observed at 530.2, 531.5, and 533.5 eV 21 .…”

Tuning of electron transport layers using MXene/metal–oxide nanocomposites for perovskite solar cells and X-ray detectors

“…43 The perceived outcomes strongly prove the existence of the multivalent state of Fe and bonding with MXene and O atoms in the composite structure. 55,56 The O 1s deconvoluted profile explores at 529.3, 531.4, and 532.2 eV, which is allotted to CO, O–C–O, and Fe–O, respectively, as displayed in Fig. 2j.…”

“…43 The perceived outcomes strongly prove the existence of the multivalent state of Fe and bonding with MXene and O atoms in the composite structure. 55,56 The O 1s deconvoluted profile explores at 529.…”

Magnetic carbon nanoparticles derived from candle soot for SALDI MS analyses of drugs and heavy metals in latent fingermarks

“…In 4 parallel to that, analysis of trace exogenous substances present in FM is of paramount importance in criminal investigations as it can provide information about an individual's lifestyle. In this regard, several analytical techniques have been employed for the chemical analysis of FM such gas chromatography-mass spectrometry (GC-MS) [12], high-performance liquid chromatography coupled to mass spectrometry [13], vibrational spectroscopic methods [7] and mass spectrometry based techniques such as MALDI MS, SIMS MS, Ag-LDI and others that have been reviewed by Francese et al [14].Whilst MALDI has covered the most grounds both in terms of intelligence recoverable from FMs and compatibility with FM and blood enhancement techniques [6,15,16], surface assisted laser desorption/ionization mass spectrometry (SALDI-MS) has gathered considerable attention in the analysis of forensic evidence such as beverage [17,18], fibers [19],…”