Browsing by Author "Özkahraman, Bengi"
Now showing items 1-20 of 28
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2-Isopropenyl-2-oxazoline: A versatile monomer for functionalization of polymers obtained via RAFT
Weber, Christine; Neuwirth, Toni; Kempe, Kristian; Özkahraman, Bengi; Tamahkar Irmak, Emel; Mert Balaban, Hümeyra; Becer, C. Remzi; Schubert, Ulrich S. (2012)2-Isopropenyl-2-oxazoline (iPOx) was polymerized for the first time via a controlled radical polymerization technique. Reversible addition-fragmentation chain transfer (RAFT) polymerization utilizing a dithiobenzoate-based ... -
Adsorption of Brilliant Green from Aqueous Solutions onto Crosslinked Chitosan Graft Copolymers
Özkahraman, Bengi; Bal, Ayça; Acar, Işıl; Güçlü, Gamze (2011)In this study, graft copolymerization of itaconic acid (IA) and crotonic acid (CA) onto the crosslinked chitosan beads were carried out using ammonium persulfate as initiator. Grafted chitosan beads were characterized by ... -
Advancements and future directions in the antibacterial wound dressings - A review
Bal Öztürk, Ayça; Özkahraman, Bengi; Özbaş, Zehra; Yaşayan, Gökçen; Tamahkar, Emel; Alarçin, Emine (Wiley, 2021)Wound repair is a complex process that has not been entirely understood. It can conclude in several irregularities. Hence, designing an appropriate wound dressing that can accelerate the healing period is critical. Infections, ... -
Aloe vera-based antibacterial porous sponges for wound dressing applications
Tamahkar, Emel; Özkahraman, Bengi; Özbaş, Zehra; İzbudak, Burçin; Yarimcan, Filiz; Boran, Filiz; Bal Öztürk, Ayça (Springer, 2021)The antibacterial sponges with high macroporosity, high interconnectivity and high biocompatibility is a significant concern for wound healing applications. In this work, novel Aloe vera (AV) based sponges were developed ... -
Boric acid-impregnated silk fibroin/gelatin/hyaluronic acid-based films for improving the wound healing process
Özen, Nurten; Özbaş, Zehra; İzbudak, Burçin; Emik, Serkan; Özkahraman, Bengi; Bal Öztürk, Ayça (Wiley, 2021)Recently, with the progression in wound dressings, the importance of the biocompatible material with enhanced features for potential applications in the biomedical field has been more developed. Current strategies focus ... -
Carbon nanotube based polyvinylalcohol-polyvinylpyrolidone nanocomposite hydrogels for controlled drug delivery applications
Özkahraman, Bengi; Tamahkar Irmak, Emel (Eskişehir Teknik Üniversitesi, 2017)Controlled drug release systems present a significant alternative to the conventional drug dosages providing drug release for prolonged time periods. Nanocomposite hydrogels offer an important potential for drug release ... -
Characterization and antibacterial activity of gelatin-gellan gum bilayer wound dressing
Özkahraman, Bengi; Özbaş, Zehra; Bayrak, Gülşen; Tamahkar, Emel; Perçin, Işık; Kılıç Süloğlu, Aysun; Bor, Filiz (Taylor & Francis As, 2021)Bilayer wound dressing systems consisting of various biopolymers have been preferred in biomedical applications due to its enhanced advantages in comparison with conventional systems. The aim of this research was to develop ... -
Controlled release profile of 5-fluorouracil loaded P(AAM-co-NVP-co-DEAEMA) microgel prepared via free radical precipitation polymerization
Özbaş, Zehra; Özkahraman, Bengi; Bal Öztürk, Ayça (Springer Verlag, 2018)A new microgel was prepared by free radical precipitation polymerization of acrylamide (AAM), 1-vinyl-2-pyrrolidone (NVP) and 2-(diethylamino)ethyl methacrylate (DEAEMA) to be used for the controlled drug release. The ... -
Engineering hydrogel nanoparticles to enhance transdermal local anaesthetic delivery in human eyelid skin
Özkahraman, Bengi; Emeriewen, Krisztina; Saleh, George Michael; Thanh, Nguyẽn Thi Kim (Royal Society of Chemistry, 2020)Herein, we focused on developing the feasibility of nano-enabled local anaesthetic (LA) delivery to anaesthetise the full thickness of eyelid skin. For this purpose a temperature-responsive hydrogel poly(Nvinylcaprolacta ... -
Evaluation of hyaluronic acid nanoparticle embedded chitosan-gelatin hydrogels for antibiotic release
Özkahraman, Bengi; Tamahkar, Emel; İdil, Neslihan; Kılıç Süloğlu, Aysun; Perçin, Işık (Wiley, 2021)The development of chitosan-gelatin (CS-G) hydrogels embedded with ampicillin-loaded hyaluronic acid nanoparticles (HA-NPs) for wound dressing is proposed. It was aimed to provide controlled ampicillin delivery by incorporation ... -
Functionalized 2-(hydroxyethyl) methacrylate (HEMA)-co-acrylamide (AAm) hydrogels: Kinetic and Isotherm Modelling Analysis on the Removal of Cu(II) Ions
Bal Öztürk, Ayça; Özbaş, Zehra; Özkahraman, Bengi; Emik, Serkan (Prints Publications Pvt Ltd, 2019)A functionalized hydrogel composed of 2-(hydroxyethyl) methacrylate (HEMA) and acrylamide (AAm) was synthesized by amination and saponification reactions, respectively, and its functionality was examined for the elimination ... -
N-vinylcaprolactam-based microgels: synthesis, characterization and drug release applications
Özkahraman, Bengi; Acar, Işıl; Gök, Mehmet Koray; Güçlü, Gamze (Springer Netherlands, 2016)In this study, N-vinylcaprolactam, metacrylic acid sodium salt and itaconic acid sodium salt-based copolymeric and terpolymeric microgels were synthesized by precipitation polymerization method with 2,2?-azobis(2-methylp ... -
A novel multilayer hydrogel wound dressing for antibiotic release
Tamahkar, Emel; Özkahraman, Bengi; Kılıç Süloğlu, Aysun; İdil, Neslihan; Perçin, Işık (Elsevier, 2020)In this study, the novel multilayer (ML) hydrogels were developed as antibacterial wound dressings. ML hydrogels were prepared as four layers using carboxylated polyvinyl alcohol (PVA-C), gelatin (G), hyaluronic acid (HA) ... -
A novel wound dressing material: Pullulan grafted copolymer hydrogel via UV copolymerization and crosslinking
Mert Balaban, Hümeyra; Özkahraman, Bengi; Damar, Hüdanur (Editions de Sante, 2020)This study presents the preparation and characterization of pullulan grafted copolymer hydrogel as a new wound dressing material. In this regard, pullulan grafted copolymer hydrogel (PGH) was prepared via UV copolymerization ... -
Poly(vinyl alcohol)/(hyaluronic acid-g-kappa-carrageenan) hydrogel as antibiotic-releasing wound dressing
Özbaş, Zehra; Özkahraman, Bengi; Bayrak, Gülşen; Kılıç Süloğlu, Aysun; Perçin, Işık; Boran, Filiz; Tamahkar, Emel; Boran, Filiz (Springer Int Publ Ag, 2021)The aim of this research was to investigate the potential of ampicillin-loaded hydrogels based on polyvinyl alcohol (PVA), hyaluronic acid (HA) and kappa-carrageenan ((K)-Carr) as an antibiotic-releasing wound dressing. ... -
Preparation and characterization of pH responsive poly(methacrylic acid-acrylamide-N-hydroxyethyl acrylamide) hydrogels for drug delivery systems
Bal, Ayça; Özkahraman, Bengi; Özbaş, Zehra (John Wiley and Sons Inc., 2016)In this study, pH responsive polymers composed of methacrylic acid, acrylamide, and N-hydroxyethyl acrylamide were synthesized by free radical polymerization technique. The characterization was done with Fourier transform ... -
Pullulan bazlı polimerik yara örtüsü hazırlanması ve biyomalzemeözelliklerinin incelenmesi
Damar, Hüdanur (Hitit Üniversitesi, 2021)Bu çalışmada, yeni bir yara örtü malzemesi olarak pullulan aşılanmış kopolimer hidrojeli hazırlandı ve karakterize edildi. Pullulan aşılanmış akrilik asit-itakonik asit kopolimer (Pu-g-p(AA-ko-IA)) hidrojeli, çapraz bağlayıcı ... -
Removal of Al(III) Ions using Gellan Gum-Acrylic Acid Double Network Hydrogel
Özkahraman, Bengi; Özbaş, Zehra (Springer, 2020)The objectives of this research were to evolve a gellan gum based double network (DN) hydrogel with high mechanical properties, and investigate its potential as an adsorbent to remove Al(III) ion. The double network hydrogel ... -
Removal of Cu 2+ and Pb 2+ Ions Using CMC Based Thermoresponsive Nanocomposite Hydrogel
Özkahraman, Bengi; Acar, Işıl; Emik, Serkan (2011)In this study, carboxymethylcellulose (CMC) based thermoresponsive nanocomposite hydrogel was synthesized for the removal of Cu 2+ and Pb 2+ ions from aqueous solutions. To prepare nanocomposite hydrogel, graft copolymerization ... -
The removal of Cu(II) and Pb(II) ions from aqueous solutions by temperature-sensitive hydrogels based on N-isopropylacrylamide and itaconic acid
Özkahraman, Bengi; Yıldırım, Eren; Emik, Serkan; Acar, Işıl (Ios Press, 2021)This study deals with the potential use of poly(N-isopropylacrylamide-co-itaconic acid) temperature-sensitive hydrogels as an adsorbent for the removal of Cu(II) and Pb(II) ions from aqueous solutions. For this aim, the ...
