NIR Duyarlı NGKN-Fe3O4@PPy Nanokompozitinin Sentezi ve Fototermal Performansının İncelenmesi

Year 2024, Volume: 27 Issue: 6, 2243 - 2253

Ceren Gökalp , Zafer Çıplak , Bengü Getiren , Nuray Yıldız

https://doi.org/10.2339/politeknik.1009280

Abstract

Bu çalışmada, yüksek fototermal aktiviteye sahip azot katkılı grafen kuantum nokta-demir oksit-polipirol (NGKN-Fe3O4@PPy) üçlü nanokompoziti sentezlenmiştir. UV-görünür bölge spektroskopisi (UV-vis), Fourier dönüşümlü kızıl ötesi spektroskopisi (FTIR), X-ışını kırınım yöntemi (XRD), yüksek çözünürlüklü geçirimli elektron mikroskobu (HRTEM), X-Ray fotoelektron spektroskopisi (XPS) ile sentezlenen yapıların morfolojik ve kimyasal yapıları karakterize edilmiştir. Ayrıca fototermal özelikleri farklı derişimlerdeki (0,025 – 0,1 mg/mL) sulu çözeltileri kullanılarak yakın kızılötesi (NIR) bölgesinde (808 nm) farklı lazer güç yoğunluklarında (1,5 – 2,5 W/cm2) incelenmiştir. 808 nm NIR lazer ile 10 dk uyarım sonucunda 0,1 mg/ml derişimli NGKN-Fe3O4@PPy kompozitinin maksimum sıcaklığının 1,5 ve 2,5 W/cm2 güç yoğunluklarında sırasıyla 54,3°C ve 83,1°C’ye ulaştığı saptanmıştır. Sergilediği yüksek fototermal performans ve fototermal kararlılık sayesinde sentezlenen NGKN-Fe3O4@PPy üçlü nanokompozitinin fototermal tedavi uygulamaları için önemli bir potansiyele sahip olduğu düşünülmektedir.

Keywords

Azot katkılı grafen kuantum nokta, polipirol, nanokompozit, fototermal tedavi

Supporting Institution

TÜBİTAK

Project Number

Proje No: 117M232

Thanks

Bu çalışma, Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBİTAK; Proje No: 117M232) tarafından desteklenmiştir.

Synthesis of NIR Responsive NGQDs-Fe3O4@PPy Nanocomposite and Investigation of Its Photothermal Performance

Abstract

In this work, magnetic nitrogen doped graphene quantum dots iron oxide-polypyrrole (NGQDs-Fe3O4@PPy) ternary nanocomposite having perfect photothermal activity was synthesized. The chemical structure and morphological of the synthesized nanocomposites were characterized by ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared (FTIR), X-ray diffraction spectroscopy (XRD), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS). Photothermal properties of the synthesized nanocomposites were examined at different laser power densities (1.5 - 2.5 W/cm2) in the near infrared (NIR) region (808 nm) using aqueous solutions of different concentrations (0.025 - 0.1 mg / mL). The maximum temperature (Tmax) of NGQDs-Fe3O4@PPy composite reached up to 54.3°C and 83.1°C under irradiation of the 808 nm NIR laser at 1.5 and 2.5 W/cm2 power density for 10 min at 0.1 mg/ml concentration. The synthesized NGQDs-Fe3O4@PPy triple nanocomposite with high photothermal performance and photothermal stability is thought to have an important potential for photothermal treatment applications.

Keywords

Nitrogen doped graphene quantum dots, polypyrrole, nanocomposite, photothermal treatment

Project Number

Proje No: 117M232

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