Vol. 55 No. 1 (2023): ITU ARI, 55(1), 2023
ITU ARI-A Natural Sciences

Suspending nanoparticles (hBN and ZnO) in non-polar media by liposomal encapsulation

Zulhice Tanrıseven
İstanbul Technical University
Cover image of ITU ARI

Published 05/29/2023


  • Liposome,
  • Hexagonal Boron Nitride,
  • Zinc Oxide,
  • Encapsulation,
  • Nano additives

How to Cite

Tanrıseven, Zulhice. 2023. “Suspending Nanoparticles (hBN and ZnO) in Non-Polar Media by Liposomal Encapsulation”. ITU ARI Bulletin of Istanbul Technical University 55 (1):7-14. https://ari.itu.edu.tr/index.php/ituari/article/view/70.


Nanoparticles have aggregation tendencies. In order to prevent aggregation and provide isolation from medium and each other, encapsulation is a solution. In this study, two selected nanoparticles, hexagonal boron nitride (hBN) and zinc oxide (ZnO) are suspended in non-polar medium by liposomal encapsulation. TEM and particle size analyses were conducted to characterize the prepared nanofluid containing liposomal nanoparticles. Results showed the stability of prepared liposomes while they stayed intact for more than three months. Prepared hBN liposomes are found to be 270 nm with 0.037 PDI and ZnO liposomes are 380 nm with 0.172 PDI value. Prepared nanofluids were introduced to SAE5W40 engine oil. Suspension stability and lubrication effects of prepared nanofluids in engine oil were examined by turbidimetry method and tribometric tests, respectively. Both hBN and ZnO nanofluids showed low TSI values; they decreased the friction coefficient of original oil by 18.83 and 19.13 percent, respectively.


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