Synthesis, Antibacterial Activity of Tio2 Nanoparticles Suspension Induced by Laser Ablation in Liquid

Abstract

Colloidal solutions of Titanium dioxide nanoparticles were synthesized by laser ablation of Titanium plate in deionized water. Studies of synthesized nanoparticles suspensions were characterized by UV-VIS absorption, Fourier transform infrared spectroscopy (FTIR) and transmission electron microscope (TEM). FTIR characterization confirms the formation of Titanium dioxide nanoparticles. TEM shows that the nanoparticles with sizes from (3-30) nm. The antimicrobial activity was carried out against Staphylococcus aureus and Escherichia coli. The Titanium dioxide nanoparticles showed inhibitory activity in bacteria. ‫و‬ ‫ﺗﺣﺿﯾر‬ ‫ﺑواﺳطﺔ‬ ‫اﻟﻣﺣﺿر‬ ‫اﻟﻧﺎﻧوي‬ ‫اﻟﺗﯾﺗﺎﻧﯾوم‬ ‫أوﻛﺳﯾد‬ ‫ﻟﺛﺎﻧﻲ‬ ‫اﻟﺣﯾوي‬ ‫اﻟﻣﺿﺎد‬ ‫ﻓﻌﺎﻟﯾﺔ‬ ‫ﺳﺎﺋل‬ ‫ﻓﻲ‬ ‫ﺑﺎﻟﻠﯾزر‬ ‫اﻻﺳﺗﺋﺻﺎل‬ ‫اﻟﺨﻼ‬ ‫ﺻﺔ‬ ‫ﺗﻢ‬ ‫ﺑ+ﺎﻟﻠﯿﺰر‬ ‫اﻻﺳﺘﺌﺼ+ﺎل‬ ‫ﺑﻮاﺳ+ﻄﺔ‬ ‫اﻟﻨﺎﻧﻮﯾ+ﺔ‬ ‫اﻟﺘﯿﺘ+ﺎﻧﯿﻮم‬ ‫اوﻛﺴ+ﯿﺪ‬ ‫ﺛ+ﺎﻧﻲ‬ ‫ﺟﺴ+ﯿﻤﺎت‬ ‫ﻣ+ﻦ‬ ‫اﻟﻐ+ﺮوي‬ ‫اﻟﺴﺎﺋﻞ‬ ‫ﺗﺤﻀﯿﺮ‬ ‫اﻟﻤﻐﻤﻮ‬ ‫اﻟﺘﯿﺘﺎﻧﯿﻮم‬ ‫ﻟﻤﻌﺪن‬ ‫ر‬ ‫اﯾ+ﻮﻧﻲ‬ ‫ﻻ‬ ‫ﻣ+ﺎء‬ ‫ﻓﻲ‬. ‫طﯿ+ﻒ‬ ‫ﺑﺎﺳ+ﺘﺨﺪام‬ ‫اﻟﻌﺎﻟﻘ+ﺔ‬ ‫اﻟﻨﺎﻧﻮﯾ+ﺔ‬ ‫ﻟﻠﺠﺴ+ﯿﻤﺎت‬ ‫اﻟﺨﺼ+ﺎﺋﺺ‬ ‫درﺳ+ﺖ‬ ‫اﻟﺒﻨﻔﺴ+ﺠﯿﺔ‬ ‫ﻓﻮق‬ ‫اﻷﺷﻌﺔ‬ ‫اﻻﻣﺘﺼﺎص‬ (UV-VIS) ‫اﻟﺤﻤ+ﺮاء‬ ‫ﺗﺤ+ﺖ‬ ‫ﻷﺷ+ﻌﺔ‬ ‫ﻓ+ﻮرﯾﺮ‬ ‫وﺗﺤﻮﯾ+ﻞ‬) FTIR (‫واﻟﻤﺠﮭ+ﺮ‬ ‫اﻻﻟﻜﺘﺮوﻧﻲ‬) TEM .(‫ال‬ ‫وﺿﺢ‬ FTIR ‫اﻟﺘﯿﺘﺎﻧﯿﻮم‬ ‫أوﻛﺴﯿﺪ‬ ‫ﺟﺰﯾﺌﺎت‬ ‫ﺗﺸﻜﻞ‬. ‫وﯾﺸﯿﺮ‬ TEM ‫ﻧﺎﻧﻮﯾ+ﺔ‬ ‫ﺟﺴﯿﻤﺎت‬ ‫اﻟﻰ‬ ‫+ﺮاوح‬ +‫ﯾﺘ‬ ‫+ﻢ‬ +‫ﺣﺠ‬ ‫+ﻊ‬ +‫ﻣ‬ nm) 3-30 (. ‫+ﺪ‬ +‫ﺿ‬ ‫+ﺮي‬ +‫ﺑﻜﺘﯿ‬ ‫+ﺎد‬ +‫ﻛﻤﻀ‬ ‫+ﺎﻧﻮي‬ +‫اﻟﻨ‬ ‫+ﻮل‬ +‫اﻟﻤﺤﻠ‬ ‫+ﺘﺨﺪام‬ +‫اﺳ‬ ‫+ﻢ‬ +‫ﺗ‬ Staphylococcus aureus ‫و‬ Escherichia coli. ‫أظﮭﺮت‬ ‫اﻟﺒﻜﺘﺮﯾﺎ‬ ‫ﻓﻲ‬ ‫ﺗﺜﺒﯿﻂ‬ ‫ﻓﻌﺎﻟﯿﺔ‬ ‫اﻟﻨﺎﻧﻮﯾﺔ‬ ‫اﻟﺘﯿﺘﺎﻧﯿﻮم‬ ‫أوﻛﺴﯿﺪ‬ ‫ﺟﺴﯿﻤﺎت‬ .