000			02128cam a2200337 a 4500
003			EG-GiCUC
005			20250223032559.0
008			200916s2020 ua dh f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.24.05.M.Sc.2020.Am.G
100	0		_aAmany Khalifa Mohamed Hassan Khalifa
245	1	0	_aGreen synthesis of gold/chitosan nanocomposites for optical sensing assay/ _cAmany Khalifa Mohamed Hassan Khalifa ; Supervised Rehab Mohamed Hassan Amin , Yasser Attia Attia
246	1	5	_aالتحضير الاخضر لمتراكبات الذهب و الكيتوزان كمستشعر ضوئى
260			_aCairo : _bAmany Khalifa Mohamed Hassan Khalifa , _c2020
300			_a101 P . : _bcharts , facsmilies ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - National Institute of Laser Enhanced Science - Department of Laser Application in Environmental Metrology Photovhemistry, Photobiology and Agriculture
520			_aIn the present study, gold nanoparticles (Au NPs) and gold/chitosan (Au/Ch) nanocomposites were prepared by the reduction of gold salt using Lemon juice that works as reducing and stabilizing agent (green synthesis). The prepared nanoparticles were characterized by UV-VIS spectrophotometry and Transmission Electron Microscopy (TEM). The prepared nanoparticles were used to determine the concentration of zinc ions in real samples like Zinc origin and Octozinc tablets that are available in the pharmaceutical market of Egypt. The results revealed that Au/Ch nanocomposites were efficient to detect the total concentration of zinc ions, while Au nanoparticles were potential with Octozinc and gave wrong data with Zinc origin
530			_aIssued also as CD
653		4	_aAuNPS (gold nanoparticles
653		4	_ach (chitosan)
653		4	_aOptical nanosensor
700	0		_aRehab Mohamed Hassan Amin , _eSupervisor
700	0		_aYasser Attia Attia , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aAmira _eCataloger
905			_aNazla _eRevisor
942			_2ddc _cTH
999			_c77791 _d77791