Mikroemülsiyonla Sentezlenen ve Köpürtme Tekniğiyle Saflaştırılan Nano Hidroksiapatit Parçacıklarının Ti6Al4V Altlıklar Üzerinde Elektroforetik Birikimleri

Öz

Biyouyumlu bir malzeme olan Hidroksiapatit (HAp) nanotozları mikroemülsiyon yöntemi ile sentezlenmiş ve elektroforetik biriktirme (EPD) tekniği ile Ti6Al4V altlıklar üzerine kaplanmıştır. EPD sırasında fazla SDS'nin de kaplandığı ve kaplama morfolojisini olumsuz yönde etkilediği görülmüştür. Bu nedenle sentezlenen nano-hidroksiapatit parçacık süspansiyonu, fazla Sodyum Dodesil Sülfat (SDS) yüzey aktif maddesini uzaklaştırmak için hızlı karıştırma ile elde edilen köpürtme tekniği ile saflaştırılmıştır. Nano HAp parçacıkları, 30 ve 60 V/cm elektrik alanlarında ve 5, 10 ve 20 dakikalık kaplama sürelerinde DC güç kaynağı kullanılarak deiyonize su içindeki Ti6Al4V altlık üzerine elektroforetik olarak kaplanmıştır. Taramalı elektron mikroskobu (SEM) incelemesi, sentezlenen nano HAp parçacıklarının parçacık boyutunun 200 nm' nin altında olduğunu göstermiştir. X-Ray Difraksiyon (XRD) analizi, sentezlenen nano HAp parçacıklarının Debye Scherrer hesaplamasına göre çoğunlukla hegzagonal kristal yapıya ve 11,54 nm kristalit boyutuna sahip olduğunu göstermiştir. Hem XRD hem de Enerji Dağılımlı X-ışını spektroskopisi (EDS) analizleri, köpürtmenin süspansiyondan fazla SDS yüzey aktif maddesinin uzaklaştırılmasında etkili olduğunu kanıtlamıştır. EPD çalışması ayrıca, köpürtme yoluyla fazla yüzey aktif maddeden uzaklaştırılan nano HAp parçacıklarının daha iyi kaplama morfolojileriyle Ti6Al4V altlıkları üzerine daha etkili bir şekilde biriktirilebileceğini göstermiştir.

Anahtar Kelimeler

• Elektroforetik Biriktirme
• Köpürtme
• Hidroksiapatit
• Mikroemülsiyon.

Proje Numarası

2019/070

Electrophoretic Deposition of Nano Hydroxyapatite Particles Synthesized by Microemulsion and Purified by Foaming Techniques on Ti6Al4V Substrates

Öz

Hydroxyapatite (HAp) nanopowders, a biocompatible material, were synthesized by microemulsion method and coated on Ti6Al4V substrates by electrophoretic deposition (EPD) technique. Excess SDS was found to be coated during EPD as well and affecting posited on coating morphology adversely. Therefore, synthesized nano-hydroxyapatite particle suspension was purified by foaming technique achieved by rapid mixing to remove excess Sodium Dodecyl Sulfate (SDS) surfactant. Nano HAp particles were coated electrophoretically on Ti6Al4V substrate in deionized water using DC power supply at electric fields of 30 and 60 V/cm and coating durations of 5, 10 and 20 minutes. Scanning electron microscopy (SEM) investigation showed that synthesized nano HAp particles had particle size below 200 nm. Powder X-Ray Diffraction analysis illustrated that synthesized nano HAp particles had mainly hexagonal crystal structure and crystallite size of 11.54 nm based on Debye Scherrer calculation. Both powder XRD and SEM energy dispersive X-ray spectroscopy (EDS) analyses proved that foaming was effective for removal of excess SDS surfactant from suspension. EPD study also showed that nano HAp particles that were removed from excess surfactant by foaming could be deposited on Ti6Al4V substrates more effectively with better coating morphologies.

Anahtar Kelimeler

• Electrophoretic Deposition
• Foaming
• Hydroxyapatite
• Microemulsion.

Destekleyen Kurum

Kocaeli University Scientific Research Projects (BAP) Coordination Unit

Proje Numarası

2019/070

Etik Beyan

This article has been approved for publication by all authors. We would like to state that the presented work has not been published before and is not under consideration elsewhere.

Teşekkür

We would like to thank the Council of Higher Education (YÖK) for the financial support of the 100/2000 PhD Scholarship Program.

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