Ergene, Cansu

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https://hdl.handle.net/20.500.14411/7834
Name Variants
Ergene,C.
Ergene, Cansu
C.,Ergene
E., Cansu
Cansu, Ergene
C., Ergene
E.,Cansu
Job Title
Araştırma Görevlisi
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Main Affiliation
Manufacturing Engineering
Status
Former Staff
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Scholarly Output

2

Articles

1

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0/0

Supervised MSc Theses

1

Supervised PhD Theses

0

WoS Citation Count

12

Scopus Citation Count

14

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1

Scopus h-index

1

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0

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0

WoS Citations per Publication

6.00

Scopus Citations per Publication

7.00

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0

Supervised Theses

1

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Bulletin of Materials Science1
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2014 - 20162
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  • Thumbnail Image
    Master Thesis
    Mikroorganizmaların Yapışmasını Önleyici İnorganik ve Organik Akıllı Yüzeylerin Geliştirilmesi ve İncelenmesi
    (2014) Ergene, Cansu; Şengönül, Cemal Merih; Kaftanoğlu, Bilgin
    Özellikle uzun süreli kullanımları sırasında tıbbi cihazların yüzeyinde meydana gelen biyofilm oluşumu, hastane ortamında yakalanılan birçok enfeksiyonun temel nedenidir. Çoğu zaman bu enfeksiyonlar, iyileşme sürecini gecikmeye uğratmakta ve sürekli kendisini tekrarlayabilen komplikasyonlar sonucu maliyeti yüksek müdahalelere sebep olmaktadır. Bakteri yapışmasına dirençli yüzeyler hazırlamak, biyofilm oluşumuyla mücadelede etkili bir yaklaşım olabilir. Bu tez çalışmasıyla, mikroorganizmaların yüzeye yapışmasını engelleyici inorganik ve organik akıllı yüzeyler geliştirilmesi hedeflenmiştir. İlk olarak, AISI 316L çelikleri üzerinde kubik ve hekzagonal benzeri kristalografik yapılarda bulunan bor nitrür (BN) kaplamaların bakteriyostatik davranışı incelenmiştir. Bu çalışmada, atomların kristalografik düzenlerinin bakteri yapışmasına etkisi ortaya konmuştur. Organik yüzey çalışmasında ise, katyonik peptit, Laktoferisin B (LFB)'nin kimyasal olarak bağlanmasıyla modifiye edilmiş silikon kauçuğu yüzeylerin antibakteriyel aktiviteleri değerlendirilmiştir. Bu çalışma sonucunda, peptitlerin yüzeye başarılı bir şekilde bağlandıkları ve kataterlerde genellikle biyofilm oluşumuna yol açan S. epidermidis ve P. aeruginosa gibi bakterilere karşı öldürücü etkileri gözlemlenmiştir.
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    Article
    Citation - WoS: 12
    Citation - Scopus: 14
    Coating of Titanium Implants With Boron Nitride by Rf-Magnetron Sputtering
    (indian Acad Sciences, 2016) Gokmenoglu, Ceren; Ozmeric, Nurdan; Cakal, Gaye; Dokmetas, Nihan; Ergene, Cansu; Kaftanoglu, Bilgin
    Surface modification is necessary for titanium implants since it is unable to induce bone apposition. The beneficial effects of boron on bone formation, composition and physical properties make it suitable as a coating material. In the present study, surface properties of boron nitride (BN) coating on titanium implants were evaluated. Twenty-four implants and 12 abutments were coated with BN by RF-magnetron sputtering system. ATR-FTIR measurements were conducted to assess surface chemistry and morphology of BN-coated implants. Adhesion tests were performed by CSM nanoscratch test device to determine adhesion of BN to titanium surface. Surface profilometry and atomic force microscopy (AFM) was used to evaluate surface roughness. Mean roughness values were calculated. Contact angle measurements were done for evaluation of wettability. Surface characterization of coated implants was repeated after RF power of the system was increased and voltage values were changed to evaluate if these settings have an impact on coating quality. Three different voltage values were used for this purpose. Hexagonal-BN was determined in FTIR spectra. RF-coating technique provided adequate adherence of BN coatings to the titanium surface. A uniform BN coating layer was formed on the titanium implants with no deformation on the titanium surface. Similar roughness values were maintained after BN coating procedure. Before coating, the contact angles of the implants were in between 63(ay) and 79(ay), whereas BN coated implants' contact angles ranged between 46(ay) and 67(ay). BN-coated implant surfaces still have hydrophilic characteristics. The change in voltage values seemed to affect the surface coating characteristics. Especially, the phase of the BN coating was different when different voltages were used. According to our results, BN coating can be sufficiently performed on pretreated implant surfaces and the characteristics of BN coated surfaces can be changed with the change in parameters of RF-magnetron sputtering system.