Deposition of Colloidal Titanium Oxide Nanoparticles using Pulsed Nd: YAG Laser Ablation in Liquid to Increase the Efficiency of the Si Solar Cell

Abstract Titanium oxide nanoparticles (TiO2) were produced by pulsed Nd:YAG laser ablation in water under the effect of an external magnetic field. Various techniques such as X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy Dispersive x-ray (EDX), transmission electron microscopy (TEM), UV-Vis spectroscopy, and Raman spectroscopy were used to characterize the TiO2 nanoparticles. The XRD analysis of titanium oxide nanoparticles revealed that the synthesized nanoparticles were polycrystalline with mixed of tetragonal anatase and rutile TiO2. Scanning electron microscope shows the formation of spherical nanoparticles and the particles agglomeration decreases and the particle size from increases from 25nm to 35nm when the magnetic field applied. The optical energy gap of TiO2 nanoparticles decreased from 4.6eV to 3.4eV after using the magnetic field during the ablation. Raman studies show the existence of five vibration modes belong to TiO2. The antibacterial effect assay revealed a largest inhibition zone in S. aureus and E. coli, with a more potent effect for TiO2 NPs prepared by magnetic field when compared with that prepared without presence of magnetic field.

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Preparation of dye sensitized titanium oxide nanoparticles for solar cell applications

Materials Science in Semiconductor Processing ◽

10.1016/j.mssp.2013.05.010 ◽

2013 ◽

Vol 16 (6) ◽

pp. 1688-1694 ◽

Cited By ~ 10

Author(s):

Kasim Ocakoglu ◽

Ceylan Zafer ◽

Canan Varlikli ◽

Siddik Icli

Keyword(s):

Solar Cell ◽

Titanium Oxide ◽

Oxide Nanoparticles ◽

Titanium Oxide Nanoparticles ◽

Dye Sensitized

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Fabrication of well-defined silicon and titanium oxide nanoparticles by laser ablation

10.1117/12.486572 ◽

2003 ◽

Author(s):

Nobuhiro Aya ◽

Seisuke Kano ◽

Takafumi Seto ◽

Makoto Hirasawa ◽

Takaaki Orii ◽

...

Keyword(s):

Laser Ablation ◽

Titanium Oxide ◽

Oxide Nanoparticles ◽

Titanium Oxide Nanoparticles

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Synthesis of Titanium Oxide Nanoparticles by Ytterbium Fiber Laser Ablation

Physics Procedia ◽

10.1016/j.phpro.2013.03.149 ◽

2013 ◽

Vol 41 ◽

pp. 787-793 ◽

Cited By ~ 17

Author(s):

M. Boutinguiza ◽

J. del Val ◽

A. Riveiro ◽

F. Lusquiños ◽

F. Quintero ◽

...

Keyword(s):

Laser Ablation ◽

Fiber Laser ◽

Titanium Oxide ◽

Oxide Nanoparticles ◽

Titanium Oxide Nanoparticles

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Titanium Oxide Nanoparticles Improve the Chemotherapeutic Action of Erlotinib in Liver Cancer Cells

Current Cancer Therapy Reviews ◽

10.2174/1573394715666191204101739 ◽

2020 ◽

Vol 16 (4) ◽

pp. 337-343

Author(s):

Shaimaa E. Abdel-Ghany ◽

Eman El-Sayed ◽

Nour Ashraf ◽

Nada Mokhtar ◽

Amany Alqosaibi ◽

...

Keyword(s):

Liver Cancer ◽

Cancer Cells ◽

Titanium Oxide ◽

Phase Distribution ◽

Oxide Nanoparticles ◽

Titanium Oxide Nanoparticles ◽

Liver Cancer Cells ◽

M Phase ◽

Apoptosis Detection ◽

Novel Method

Background: Hepatocellular carcinoma is the second leading cause of cancer-related deaths among other types of cancer due to lack of effective treatments and late diagnosis. Nanocarriers represent a novel method to deliver chemotherapeutic drugs, enhancing their bioavailability and stability. Methods: In the present study, we loaded gold nanoparticles (AuNPs) and titanium oxide nanoparticles (TiO2NPs) with ERL to investigate the efficiency of the formed composite in inducing apoptosis in HepG2 liver cancer cells. Cytotoxicity was assessed using MTT assay and cell phase distribution was assessed by flow cytometry along with apoptosis detection. Results: Data obtained indicated the efficiency of the formed composite to significantly induce cell death and arrest cell cycle and G2/M phase. IRF4 was downregulated after treatment with loaded ERL. Conclusion: Our data showed that loading ERL on TiO2NPs was more efficient than AuNPs. However, both nanocarriers were efficient compared with control.

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