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    Collagen Wound Dressings with Anti-Inflammatory Activity
    (Taylor & Francis Ltd, 2012) Albu, M. G.; Ferdes, M.; Kaya, D. A.; Ghica, M. V.; Titorencu, I.; Popa, L.; Albu, L.
    The aim of this study was to develop modern wound dressings such as controlled drug delivery systems. These systems consist in collagen as release support and niflumic acid as drug. The scaffolds were prepared by lyophilization in order to obtain porous structures and were evaluated by release profile of niflumic acid, water absorption, collagenase degradation and biocompatibility with fibroblast cells. The collagen scaffold with 0.75% niflumic acid solved in laurel oil was optimal in terms of biodegradability, absorbability and fibroblast cells biocompatibility. Thus, the obtained collagen scaffolds could be used as wound dressings with absorbent, antibacterial and anti-inflammatory properties.
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    Öğe
    EUCALYPTUS-COLLAGEN COMPOSITE GELS FOR DENTISTRY APPLICATIONS
    (Inst Materials Physics, 2014) Rusu, L. C.; Kaya, D. A.; Ghica, M. V.; Albu, M. G.; Popa, L.; Butu, A.; Dinu-Pirvu, C. E.
    Composite gels based on collagen and eucalyptus oil were prepared in order to be used in dentistry. The main components such as beta-Cymene (32.1%), Eucalyptol (36.59%), Cryptone (4.35%) and Spathulenol (3.82%) of Eucalyptus camadulensis Dehnh. essential oil were determined by GC-MS. The eucalyptus oil dissolved in different concentration of ethanol (4 and 8% v/v) was embedded in collagen gels (0.4 and 0.8% w/w) and crosslinked with tannic acid (0.2 and 0.4% w/w). The stability of gels was depending on collagen concentration, only the gels with 0.8% of collagen being stable. The rheological analysis of composite gels showed that formulation containing a combination of ethanol and tannic acid at the ratio of 8% v/v: 0.4% w/w resulted in the highest consistency index and yield stress. All the 0.8% collagen gels exhibited a suitable pseudoplastic behaviour and could be recommended for an adequate administration in the oral cavity.