Facile and one-step liquid phase synthesis of uniform silver nanoparticles reduction by ethylene glycol

Leng, Zhiyuan; Wu, Dongrui; Yang, Qinke; Zeng, Shichao; Xia, Wenfang

doi:10.1016/j.ijleo.2017.10.024

Cited by 31 publications

(6 citation statements)

References 34 publications

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“…The FTIR profile of RE showed various peaks at 3368, 2934, 1648, 1517, 1374, 1244, 1160, 1082, 1055, 1024, 864.4, 775.4, 626.5 cm −1 , whereas the GRAgNPs showed spectral bands at following positions 3330, 2940, 1611, 1516, 1384, 1156, 1076, 1046, 832.6, 632.8 cm −1 ( Figure 3 a,b). In addition, the FTIR profile of CAgNPs showed various peaks at 3410, 2950, 2880, 1654, 1491, 1460, 1420, 1371, 1287, 1220, 1084, 1034, 882.6, 731.1, 646.9 cm −1 , which were in concurrence with those exhibited by polyvinylpyrrolidone (PVP) coated CAgNPs dispersed in ethylene glycol [ 36 , 37 ] ( Figure 3 c).…”

Section: Resultsmentioning

confidence: 54%

Nematicidal Potential of Green Silver Nanoparticles Synthesized Using Aqueous Root Extract of Glycyrrhiza glabra

et al. 2022

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Meloidogyne incognita (root-knot nematode) is a devastating soil-borne pathogen which can infect almost all cultivated plants around the globe, expediting huge pecuniary losses. The purpose of current study was to use the aqueous root extract of Glycyrrhiza glabra for synthesizing silver nanoparticles (GRAgNPs) and assess their nematicidal potential against M. incognita by in vitro methods, including hatching inhibition and mortality assays. The active uptake of FITC labeled GRAgNPs by the nematode and their effect on the expression of selected genes involved in oxidative stress and DNA damage repair were also studied. An HRTEM micrograph confirmed their spherical morphology with sizes ranging from 9.61 nm to 34.735 nm. Complete inhibition of egg-hatching was observed after 48 h of treatment with as low as 10.0 ppm of GRAgNPs. In addition, 100% mortality was recorded at the lowest dose of 6.0 ppm, after 12 h of treatment. The LC-50 for GRAgNPs was found to be 0.805 ± 0.177 ppm at p < 0.0001, R2 = 0.9930, and α = 0.05. The expression of targeted genes (skn-1, mev-1, sod-3, dhs-23, cyp-450, xpa, cpr-1, gst-n, and ugt) was significantly enhanced (1.09–2.79 folds), at 1.0 ppm (α = 0.05, 95% CI) GRAgNPs treatment. In conclusion, GRAgNPs performed efficaciously and considerably in contrast to chemical nematicide and commercial silver nanoparticles (CAgNPs) and might be used as a promising alternative as relatively lower concentration and short exposure time were enough to cause higher mortality and nanotoxicity in nematodes.

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Section: Resultsmentioning

confidence: 54%

Nematicidal Potential of Green Silver Nanoparticles Synthesized Using Aqueous Root Extract of Glycyrrhiza glabra

et al. 2022

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“…The UV-Vis spectra of as-synthesized samples at different flow rates of 9 ml h −1 (4 s residence time) and 3 ml h −1 (12 s residence time) are shown in figure 2(b). With longer droplet residence time, the SPR bands were significantly broadened, indicating polydispersity of the particle size distribution [30,31]. A red shift of SPR peaks from 422 nm to 425 nm occurred with increasing residence time indicating a change in particle With the longer residence time of 12 s, we observed large, irregular shaped Ag NPs with diameters of ∼50 nm interspersed with a large concentration of smaller Ag NPs.…”

Section: Size Control Of Silver Nps In Continuous Wave (Cw) Plasma Op...mentioning

confidence: 76%

Size-tunable silver nanoparticle synthesis in glycerol driven by a low-pressure nonthermal plasma

Andaraarachchi

Xiong

et al. 2022

J. Phys. D: Appl. Phys.

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Silver nanoparticles are extensively used in electronic components, chemical sensors, and disinfection applications, in which many of their properties depend on particle size. However, control over silver nanoparticle size and morphology still remains a challenge for many synthesis techniques. In this work, we demonstrate the surfactant-free synthesis of silver nanoparticles using a low-pressure inductively coupled nonthermal argon plasma. Continuously forming droplets of silver nitrate (AgNO3) precursor dissolved in glycerol are exposed to the plasma, with the droplet residence time being determined by the precursor flow rate. Glycerol has rarely been studied in plasma-liquid interactions but shows favourable properties for controlled nanoparticle synthesis at low pressure. We show that the droplet residence time and plasma power have strong influence on nanoparticle properties, and that improved size control and particle monodispersity can be achieved by pulsed power operation. Silver nanoparticles had mean diameters of 20 nm with geometric standard deviations of 1.6 under continuous wave operation, which decreased to 6 nm mean and 1.3 geometric standard deviation for pulsed power operation at 100 Hz and 20% duty cycle. We propose that solvated electrons from the plasma and VUV radiation induced electrons produced in glycerol are the main reducing agents of Ag+, the precursor for nanoparticles, while no significant change of chemical composition of the glycerol solvent was detected.

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“…At 2θ values of 37.63°, 43.92°, 64.83° and 81.20° several Bragg reflection peaks are indexed to (111), (200), (220), (222), respectively and is matched with the standard spectrum of Ag NPs (Joint Committee on Powder Diffraction Standards (JCPDS) No. 00-004-0783) 18,38,39 . Also, small four peaks are observed at 2θ values of 26.16°, 30.46°, 54.60° and 72.76° indexed to (110), (111), (220) and (222), respectively and correspond to presence of cubic configuration of Ag 2 O NPs 40 .…”

Section: Resultsmentioning

confidence: 99%

Highly Luminescent Ternary Nanocomposite of Polyaniline, Silver Nanoparticles and Graphene Oxide Quantum Dots

Shokry

Khalil

Ibrahim

et al. 2019

Sci Rep

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Quantum dots (QDs) with photostability show a potential application in optical sensing and biological imaging. In this work, ternary nanocomposite (NC) of high fluorescent polyaniline (PANI)/2-acrylamido-2-methylpropanesulfonic acid (AMPSA) capped silver nanoparticles (NPs)/graphene oxide quantum dots (PANI/Ag (AMPSA)/GO QDs) have been synthesized by in situ chemical oxidative polymerization of aniline in the presence of Ag (AMPSA) NPs and GO QDs. Ag (AMPSA) NPs and GO QDs were prepared by AgNO3 chemical reduction and glucose carbonization methods, respectively. The prepared materials were characterized using UV-visible, Fourier transform infrared (FTIR), photoluminescence and Raman spectroscopies, X-Ray diffractometer (XRD) and high- resolution transmission electron microscopy (HRTEM). HRTEM micrographs confirmed the preparation of GO QDs with an average size of 15 nm and Ag (AMPSA) NPs with an average size of 20 nm. PANI/Ag (AMPSA)/GO QDs NC showed high and stable emission peak at 348 nm. This PANI/Ag (AMPSA)/GO QDs NC can emerge as a new class of fluorescence materials that could be suitable for practical sensing applications.

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Facile and one-step liquid phase synthesis of uniform silver nanoparticles reduction by ethylene glycol

Cited by 31 publications

References 34 publications

Nematicidal Potential of Green Silver Nanoparticles Synthesized Using Aqueous Root Extract of Glycyrrhiza glabra

Nematicidal Potential of Green Silver Nanoparticles Synthesized Using Aqueous Root Extract of Glycyrrhiza glabra

Size-tunable silver nanoparticle synthesis in glycerol driven by a low-pressure nonthermal plasma

Highly Luminescent Ternary Nanocomposite of Polyaniline, Silver Nanoparticles and Graphene Oxide Quantum Dots

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