title: Facile synthesis of nano silver ferrite (AgFeO₂) modified with chitosan applied for biothiol separation.
abstract: Silver iron oxide nanoparticles (AgFeO2 NPs) with narrow size distribution have been synthesized, characterized and was applied for biothiols separation. AgFeO2 and AgFeO2 modified chitosan (AgFeO2@CTS NPs) were synthesized using a hydrothermal method and then characterized by electron microscopy (transmission electron microscopy (TEM), scanning electron microscopy (SEM), and energy dispersive X-ray (EDX)), X-ray diffraction (XRD), and Fourier transform infrared (FTIR). Different biological thiols (dithiothreitol, glutathione, thiabendazole, and sulfamethizole) were investigated and characterized using matrix assisted laser desorption/ionization mass spectrometry (MALDI-MS) and surface assisted laser desorption/ionization mass spectrometry (SALDI-MS). The new material displays dual functionality; 1) for separation and 2) can be served as the matrices for SALDI-MS. Data showed a clear background in the case of nanomaterials compared to conventional matrices (mefenamic acid and 2,5-dihydroxybenzoic acid (DHB) for MALDI-MS).
authors.affiliation: Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Department of Chemistry, Assuit University, Assuit 71515, Egypt.
authors.forename: Hani Nasser
authors.initials: HN
authors.lastname: Abdelhamid
authors.affiliation: Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 800, Taiwan; Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Doctoral Degree Program of Marine Biotechnology, National Sun Yat-Sen University and Academia Sinica, Kaohsiung 804,Taiwan; Institute of Medical Science and Technology, National Sun Yat-Sen University. Electronic address: hwu@faculty.nsysu.edu.tw.
authors.forename: Hui-Fen
authors.initials: HF
authors.lastname: Wu
mesh_terms: D048271:Chitosan / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D018030:Silver Compounds / Q000138:chemical synthesis*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D017550:Spectroscopy, Fourier Transform Infrared; D013438:Sulfhydryl Compounds / Q000737:chemistry / Q000302:isolation & purification*; D014961:X-Ray Diffraction
chemical_list: D005290:Ferric Compounds; D018030:Silver Compounds; D013438:Sulfhydryl Compounds; C001215:ferrite; D048271:Chitosan
keywords: AgFeO(2); Chitosan; Matrix assisted laser desorption/ionization; Thiol separation