Green Synthesis and Characterization of Silver Nanoparticles from Crocus Mathewii; A Disremembered Turkish Flowering Plant

Abstract

Mahmut, et al.: Characterization of Silver Nanoparticles from Crocus mathewiiThis study reports the first ever chemical study on Crocus mathewii, a Turkish endemic and forgotten flowering plant. Silver nanoparticles were green synthesized from one mmol×l -1 silver nitrate extract of C. mathewii. The water-suspended silver nanoparticles showed a peak at 423 nm in UV/Vis spectrophotometer that suggested smaller particle size due to its less surface plasmon resonance. Transmission electron microscopy analysis also proved excellent polydispersity of quasi-spherical particle size distribution with average particles of 7.5 nm (2.5-25 nm). The presence of silver in the nanoparticles was analyzed by X-ray diffraction, while Fourier transform infrared spectroscopy analysis showed the presence of various -OH and -NH containing organics. The results proved that the crude extract of C. mathewii can be used for green synthesis of silver nanoparticles in future for medicinal uses.

Hydrothermal Assisted Synthesis and Biological Evaluation of Biogenic Silver Nanoparticles

“…The hydrothermal synthesis of biogenic silver nanoparticles using aqueous extract of Alchornea laxiflora and AgNO3 was monitored using spectrophotometric methods to obtain the surface plasmon resonance (SPR) band of silver nanoparticles. However, change in colour of the reaction solution from dark brown to yellowish brown after 5 min of reaction time gave early signs of the formation of silver nanoparticles in accordance to literature reports [27].…”

Synthesis and characterization of Cuscuta reflexa (Roxb.) aqueous extract mediated silver nanoparticles

“…19 Previously UV-vis analysis of C. mathewii extract mediated water suspended AgNPs studied and reported a peak of absorption at 423nm that suggested the presence of AgNPs due to surface plasmon resonance. 20 The absorption spectrum of nanoparticles obtained from UV-visible absorption spectroscopy is presented in Figure 2, which shows peak at 442.94nm corresponds to the SPR and correlate with the respective UV-Vis spectra of the colloidal solution SNPs of previous studies. SEM is a surface imaging technique and resolves various molecule sizes, size distributions, nanomaterials shapes, and the surface morphology of the particles at the small scale and nanoscales range.…”

Biosynthesis and Characterization of Silver Nanoparticles Using Wheatgrass Extract and Assessment of Their Anticandidal Activity

“…2). The early reports on silver nanoparticles showed the absorption peaks in visible range of 434 nm [27] , 410 nm [28] , 420 nm [29] , 436-446 nm [30] and 423 nm [15] . Fig.…”

“…The biological methods of silver nanoparticle synthesis using biological entities like bacteria [11] , yeast [12] , fungi [13] and plants [14] were reported. Over the past few decades, the use of plants in medicine and industry has been significantly growing in the world, although the potential of higher plants and crops as source for this purpose is still largely unexplored [15] . Candida is the most common opportunistic human fungal pathogen causing diseases ranging from superficial mucosal to life-threatening systemic infections [16][17][18] , currently ranked by the Center for Disease Control as the third most commonly isolated bloodstream pathogen in hospitalized patients with a mortality rate of up to 50 % [19][20][21] .…”