Department of Engineering Sciences, Article

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Recent Submissions

A review of synthesis methods, properties and use of monetite cements as filler for bone defects
Motameni, Ali; Alshemary, Ammar Z.; Evis, Zafer (2021-05-01)
The major objective of the current review is to highlight the prime importance of bone cements particularly monetite cement as filler to treat various bone defects which may result due to osteoporosis, some accidents, some...
Synthesis and sintering of B, Sr, Mg multi-doped hydroxyapatites: Structural, mechanical and biological characterization
Yedekçi, Buşra; Tezcaner, Ayşen; Alshemary, Ammar Z.; Yilmaz, Bengi; DEMİR, TEYFİK; Evis, Zafer (2021-03-01)
Hydroxyapatite (HA, Ca-10(PO4)(6)(OH)(2)) is the main constituent mineral of bone and teeth in mammals. Due to its outstanding biocompatibility and osteoconductive capabilities, it is preferred for bone repair and replacem...
Lanthanum doped dicalcium phosphate bone cements for potential use as filler for bone defects
Motameni, Ali; Alshemary, Ammar Z.; Dalgıç, Ali Deniz; Keskin, Dilek; Evis, Zafer (2021-03-01)
The bone defects arising as a result of trauma should be filled to provide a framework to support and encourage the growth of new and living bone tissues. Among the many synthetic bone graft substitutes, self-hardening cal...
Zn-doped hydroxyapatite in biomedical applications
Uysal, Idil; Yilmaz, Bengi; Evis, Zafer (2021-03-01)
Hydroxyapatite, (Ca-10(PO4)(6)(OH)(2)), is a ceramic material similar to the inorganic part of the bone and can be synthesized in a laboratory environment with different methods. The structure of HA enables ionic substitut...
Multifunctional natural polymer-based metallic implant surface modifications
Pazarçeviren, Ahmet Engin; Tezcaner, Ayşen; Evis, Zafer (2021-03-01)
High energy traumas could cause critical damage to bone, which will require permanent implants to recover while functionally integrating with the host bone. Critical sized bone defects necessitate the use of bioactive meta...
Proposed minimum restoring force requirements for seismic isolated structures
Dicleli, Murat; Gorgulu, Ali Gunalp (2021-02-01)
In this research study, a new set of restoring force equations are proposed for seismic isolated structures subjected to far fault ground motions (FFGM) and near fault ground motions (NFGM). For this purpose, 110 FFGM and ...
Radiosensitization induced by zinc-doped hydroxyapatite nanoparticles in breast cancer cells
YEDEKÇİ, FAZLI YAĞIZ; Gedik, Emre; Evis, Zafer; Dogan, Lale; ÖZYİĞİT, GÖKHAN; Gurkaynak, Murat (2021-01-01)
Zinc-doped hydroxyapatite (HA) nanoparticles were synthesized by microwave assisted method and used with ionizing radiation for inhibition of proliferation of breast cancer cells. Zinc-doped HAs were produced in four diffe...
A dual-phase scaffold produced by rotary jet spinning and electrospinning for tendon tissue engineering
Guner, Mustafa Bahadir; DALGIÇ, ALİ DENİZ; Tezcaner, Ayşen; Yilanci, Sedat; Keskin, Dilek (IOP Publishing, 2020-11-01)
Tendon is a highly hierarchical and oriented tissue that provides high mechanical strength. Tendon injuries lead to loss of function, disability, and a decrease in quality of life. The limited healing capacity of tendon ti...
Cellulose acetate-gelatin-coated boron-bioactive glass biocomposite scaffolds for bone tissue engineering
Rad, Reza Moonesi; ALSHEMARY, AMMAR ZEIDAN GHAILAN; Evis, Zafer; Keskin, Dilek; Tezcaner, Ayşen (IOP Publishing, 2020-11-01)
In this study, we aimed to prepare and characterize porous scaffolds composed of pure and boron oxide (B2O3)-doped bioactive glass (BG) that were infiltrated by cellulose acetate-gelatin (CA-GE) polymer solution for bone t...
PREPARATION AND CHARACTERISTICS OF CO-DOPED HYDROXYAPATITE BIOMIMETIC COATINGS ON PRETREATED Ti6Al4V ALLOY
Hacioglu, Tugce; Tezcaner, Ayşen; Abbas, Sherif; Evis, Zafer (World Scientific Pub Co Pte Lt, 2020-11-01)
In this study, bismuth + carbonate co-doped and pure hydroxyapatites (HAp) were coated on rough surfaces of Ti6Al4V plates by biomimetic method. Prepared samples were investigated with SEM, EDS, FTIR, XRD and ICP. Furtherm...
Calcium zirconium silicate (baghdadite) ceramic as a biomaterial
Jodati, Hossein; Yilmaz, Bengi; Evis, Zafer (Elsevier BV, 2020-10-01)
Bioceramics have been widely used for many years to restore and replace hard tissues including bones, teeth and mineralized matrices such as calcified cartilages at osteochondral interfaces, mainly because of their physico...
Damping reduction equation for the equivalent linear analysis of seismic isolated structures subjected to near fault ground motions
Dicleli, Murat; Kara, Emrah (Elsevier BV, 2020-10-01)
In this study, a new damping reduction equation is proposed to obtain reasonable estimates of the actual nonlinear responses of seismic isolated structures (SIS) subjected to near fault ground motions (NFGM) with forward-r...
A review of bioceramic porous scaffolds for hard tissue applications: Effects of structural features
Jodati, Hossein; Yilmaz, Bengi; Evis, Zafer (Elsevier BV, 2020-07-01)
Tissue engineering has acquired remarkable attention as an alternative strategy to treat and restore bone defects during recent years. A scaffold is a fundamental component for tissue engineering, on which cells attach, pr...
Effect of storage time on mechanical properties of extended-pour irreversible hydrocolloid impression materials
ŞAHİN, VOLKAN; Jodati, Hossein; Evis, Zafer (Elsevier BV, 2020-07-01)
Statement of problem. Recent commercial extended-pour irreversible hydrocolloid impression materials (EPIHIMs) claim to maintain dimensional stability up to 120 hours. However, data regarding their mechanical properties an...
Dual growth factor delivery using PLGA nanoparticles in silk fibroin/PEGDMA hydrogels for articular cartilage tissue engineering
Fathi-Achachelouei, Milad; Keskin, Dilek; Bat, Erhan; Vrana, Nihal E.; Tezcaner, Ayşen (Wiley, 2020-07-01)
Degeneration of articular cartilage due to damages, diseases, or age-related factors can significantly decrease the mobility of the patients. Various tissue engineering approaches which take advantage of stem cells and gro...
Inspection and evaluation of a network of concrete bridges based on multiple NDT techniques
Akgül, Ferhat (Informa UK Limited, 2020-07-01)
Bridge condition rating is a crucial variable used for prioritisation of bridge needs in bridge management systems (BMSs). At present, bridge rating is predominantly based on visual inspections. A practical method incorpor...
Boron-doped Biphasic Hydroxyapatite/beta-Tricalcium Phosphate for Bone Tissue Engineering
Pazarçeviren, Ahmet Engin; Tezcaner, Ayşen; Keskin, Dilek; Kolukisa, Serap Topsoy; Surdem, Sedat; Evis, Zafer (Springer Science and Business Media LLC, 2020-06-10)
Boron-doped hydroxyapatite/tricalcium phosphates (BHTs) were synthesized to study boron uptake and correlate structural alterations of incremental boron addition (0 to 10 mol%). BHTs with a Ca/P ratio of 1.6 were prepared ...
Structural and Biological Analysis of Mesoporous Lanthanum Doped beta TCP For Potential Use as Bone Graft Material
Motameni, Ali; Dalgıç, Ali Deniz; ALSHEMARY, AMMAR ZEIDAN GHAILAN; Keskin, Dilek; Evis, Zafer (Elsevier BV, 2020-06-01)
In this study, mesoporous particles of beta-tricalcium phosphate (beta TCP, beta Ca-3(PO4)(2)) and lanthanum (La) doped beta TCP were synthesized using wet precipitation method attached with microwave refluxing system. The...
Synthesis and characterization of magnesium-lanthanum dual doped bioactive glasses
Jodati, Hossein; Guner, Bahadir; Evis, Zafer; Keskin, Dilek; Tezcaner, Ayşen (Elsevier BV, 2020-06-01)
Dual ion-doped bioactive glass has drawn high attention during recent years because of well-improved therapeutic characteristics and mechanical properties. In this study, 5 different ion-doped (1 wt% Lanthanum with 0, 1, 2...
Potential tsunami hazard along the southern Turkish coast
Aydin, Baran; Sharghivand, Naeimeh; Bayazitoglu, Ozge (Elsevier BV, 2020-06-01)
The aim of this study is to determine the tsunami potential of the southern Turkish coast through hypothetical earthquake scenarios developed for several critical coastal sites in the region. A well-known tsunami numerical...
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