Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Publisher: search.filters.publisher.Springer VerlagSubject: search.filters.subject.Fourier transform infrared spectroscopy

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  • Article
    Citation - WoS: 32
    Citation - Scopus: 33
    Characterization of Silk Fibroin/Hyaluronic Acid Polyelectrolyte Complex (pec) Films
    (Springer Verlag, 2008) Malay, Özge; Yalçın, Dilek; Batıgün, Ayşegül; Bayraktar, Oğuz
    This study aimed the characterization of the films casted from the aqueous mixtures of the pH induced complexes between silk fibroin (SF) and hyaluronic acid (HA). The insoluble and transparent films were subjected to scanning electron microscopy (SEM) analyses to show the morphological changes. Thermal analysis of complex films was determined by a differential scanning calorimeter (DSC). The changes in the crystalline state were monitored by X-ray diffractometer (XRD) and Fourier transform infrared spectroscopy (FTIR). It was shown that the complexation between HA and SF was dominantly induced by pH. It was shown that the complex films comprised mixtures of crystalline and non-crystalline regions.
  • Article
    Citation - WoS: 42
    Citation - Scopus: 46
    Characterization and Recovery of Tartaric Acid From Wastes of Wine and Grape Juice Industries
    (Springer Verlag, 2008) Yalçın, Dilek; Özçalık, Onur; Altıok, Evren; Bayraktar, Oğuz
    Tartaric acid is mainly used in food, pharmaceuticals and cosmetics industries. In this study, the waste samples, which contain tartaric acid, from the wastes of wine and grape juice industries were characterized by using TG, DSC, FTIR and XRD techniques. HPLC was used to determine tartaric acid content of samples. The decomposition temperatures of waste samples were found to be relatively higher compared with that of pure tartaric acid. This difference in decomposition temperatures was attributed to the presence of potassium tartrate since high potassium content was detected with ICP-AES.