000			02686nam a22002657a 4500
003			OSt
005			20241017141615.0
008			241017b |||||||| |||| 00| 0 eng d
040			_aTUPM _bEnglish _cTUPM _dTUPM _erda
050			_aBTH RB 37 _bO54 2019
100			_aOng, Rachelle
245			_aAntimicrobial activity and catalytic degradation property of green synthesized copper oxide and silver nanoparticles from the extract of Eclipta Prostata (false daisy) leaves/ _cRachelle T. Ong .--
260			_aManila: _bTechnological University of the Philippines, _c2019.
300			_a87pages: _c29cm. _e+1 CD ROM (3/4in.)
336			_2rdacontent
337			_2rdamedia
338			_2rdacarrier
500			_aThesis (undergraduate)
502			_aCollege of Science .-- _bBachelor of Applied Science major in Laboratory Technology: _cTechnological University of the Philippines, _d2019.
504			_aIncludes bibliography.
520			_aNanoparticles are substances with at least one-dimension size from 1 to 100nm. These nanosized-particles have a lot application which includes antimicrobial agent, catalyst, optical sensing. This study focused on the green synthesis of metallic nanoparticles particularly CuO and Ag nanoparticles using the leaves extract of Eclipta prostata (false daisy) as reducing and stabilizing agent. The synthesized nanoparticles were initially characterized using UV-Vis spectroscopy to determine their optical properties. Also, this was used to confirm the presence of silver nanoparticles which exhibited an absorption at 434nm, which correspond to its surface plasmon resonance. SEM analysis showed that both CuO and Ag nanoparticles have quasi-spherical morphology. EDX analysis identifies the presence of Cu, O for CuO nanoparticles and Ag for Ag nanoparticles. Moreover, the presence of elemental C is associated with the organic molecules from the leaves extract which serves as capping agent of the nanoparticles. This were further confirmed by FTIR analysis which shows several functional group peaks common to organic molecules. The antimicrobial activity of both CuO and Ag nanoparticles was tested against E. coli and S. aureus. Only Ag nanoparticles showed exhibited antimicrobial activity against both microbes. The catalytic property of both CuO and Ag nanoparticles was evaluated using the test dye methylene blue. Both metal nanoparticles showed promising catalytic performance in decolonizing the dye. About 82% and 95.2% of dye were for 60 seconds using CuO and Ag nanoparticles, respectively.
650			_aEclipta prostrata (false daisy)
650			_aCopper oxide nanoparticles
942			_2lcc _cBTH COS _n0
999			_c28990 _d28990