Synthesis of Monodispersed Gold Nanoparticles with Exceptional Colloidal Stability with Grafted Polyethylene Glycol‐<i>g</i>‐polyvinyl Alcohol

Alkilany, Alaaldin M.; Yaseen, Alaa’; Kailani, Mohammed H.

doi:10.1155/2015/712359

Cited by 34 publications

(31 citation statements)

References 26 publications

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“…www.wjpr.net The level of HAuCl 4 was found to decrease linearly over time period due to the reduction through green tea polyphenols as reported in Parkin et al [31][32] This phenomenon showed decrease in particle size of the PM-AuNPs. Hence the reaction time had a negative impact on the particle size, whereas there was no change in the % loading efficiency over the range of reaction time.…”

Section: Effect Of Gold Salt Concentration On Particle Size and Loadimentioning

confidence: 56%

Optimization of Piroxicam Monoethanolamine Loaded Gold Nanoparticles Using 23 Full Factorial Design Approach.

Shaji¹

2017

WJPR

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The objective of the present study was to investigate the combined effect of three independent variables in the fabrication of Piroxicam monoethanolamine (PRX-MEA) loaded gold nanoparticles (PMAuNPs) using a 2 3 full factorial design. PM-AuNPs were prepared by green chemistry approach using methanolic green tea (Camellia.sinesis) extract with factors viz. gold salt concentration X 1 (1.57 to 3.93 mg), PRX-MEA concentration X 2 (2.86 to 8.12 mg) and reaction time X 3 (60 to 180 min.) and were evaluated for their particle Size Y 1 (nm) and % loading efficiency Y 2 (% LE). The mean particle size of PM-AuNPs batches ranged between 43 to 158.3 nm. Preliminary trials of PM-AuNPs revealed that on increasing the gold salt concentration the particle size was also increased. The % LE was found to be between 81.94 % to 97.78%.Process variables such as gold salt and PRX-MEA concentration had positive impact on percent drug loading efficiency. The effects of all the tested independent variables were significant (P-values<0.05).Using design check point analysis the optimum formulation comprising of 1.96 mg of gold salt, 6.58mg of PRX-MEA and stirring time of 180 min was selected. This formulation demonstrated particle size of 51.02 ± 45 nm and LE of 88.05 ± 0.36 %. PM-AuNPs with small particle size and excellent loading efficiency were successfully produced using this method. Characterization of optimum formulation by evaluating the experimental data showed no significant difference between predicted and observed values.

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Section: Effect Of Gold Salt Concentration On Particle Size and Loadimentioning

confidence: 56%

Optimization of Piroxicam Monoethanolamine Loaded Gold Nanoparticles Using 23 Full Factorial Design Approach.

Shaji¹

2017

WJPR

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“…The infrared (IR) band at 1096 cm À1 , 2927 cm À1 , 1704 cm À1 and 1461 cm À1 are characteristic vibration bands of kollicoat; and can be assigned to the vibration of the C-OH, C-H, C¼O and C-O bonds. 25 The bands at 3611 cm À1 , 3743 cm 1 and 3854 cm À1 can be assigned to -OH group. These IR bands con¯rmed the capping of kollicoat on the surface of Ag NPs.…”

Section: Characterization Of Synthesized Ag Npsmentioning

confidence: 99%

“…Alkilany et al have synthesized spherical gold nanoparticles using kollicoat as a stabilizing agent. 25 Manufacturing several analgesic and antipyretic drugs needs 4-aminophenol (4-AP) as a potent intermediate. It is also used exceptionally as a photographic developer, corrosion inhibitor, anti corrosion-lubricant and hair-dyeing agent.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Silver Nanoparticles with Exceptional Colloidal Stability and its Catalytic Activity Toward Nitrophenol Reduction

Sharma

Mishra

Kumar³

et al. 2016

NANO

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Silver nanoparticles (Ag NPs) were synthesized by one-step process in the presence of kollicoat as capping, reducing and stabilizing mediator. The synthesized NPs were characterized by using FTIR, TEM, DLS, XRD, EDS and UV-Vis spectroscopy. The resulting Ag NPs had an incomparable colloidal stability against the salt addition and change of pH. The e®ect of di®erent synthesis parameters and the catalytic property of the NPs were examined.

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“…However, polymers are broadly used in the green synthesis of AuNPs. Polymers employed as AuNPs stabilizers consider homopolymers such as poly(N-vinyl-2-pyrrolidone) PVP and poly(acrylic acid) PAA, block copolymers such as poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) PEO-PPO-PEO, and polyethylene glycol-g-polyvinyl alcohol PEG-g-PVA, among others [3,[33][34][35][36][37]. Stabilization of metal surfaces using polymers, offers the possibility of tuning the optical properties, functionality, and surface reactivity of metal nanoparticles [31].…”

Section: The Behavior Of Polymers In Gold Nanoparticle Synthesismentioning

confidence: 99%

Nanoengineering of Gold Nanoparticles: Green Synthesis, Characterization, and Applications

et al. 2019

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The fundamental aspects of the manufacturing of gold nanoparticles (AuNPs) are discussed in this review. In particular, attention is devoted to the development of a simple and versatile method for the preparation of these nanoparticles. Eco-friendly synthetic routes, such as wet chemistry and biosynthesis with the aid of polymers, are of particular interest. Polymers can act as reducing and/or capping agents, or as soft templates leading to hybrid nanomaterials. This methodology allows control of the synthesis and stability of nanomaterials with novel properties. Thus, this review focus on a fundamental study of AuNPs properties and different techniques to characterize them, e.g., Transmission Electron Microscopy (TEM), Atomic Force Microscopy (AFM), UV-Visible spectroscopy, Dynamic Light Scattering (DLS), X-Ray Diffraction (XRD), X-Ray Photoelectron Spectroscopy, Small-angle X-Ray Scattering (SAXS), and rheology. Recently, AuNPs obtained by “green” synthesis have been applied in catalysis, in medicine, and as antibacterials, sensors, among others.

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Synthesis of Monodispersed Gold Nanoparticles with Exceptional Colloidal Stability with Grafted Polyethylene Glycol‐g‐polyvinyl Alcohol

Cited by 34 publications

References 26 publications

Optimization of Piroxicam Monoethanolamine Loaded Gold Nanoparticles Using 23 Full Factorial Design Approach.

Optimization of Piroxicam Monoethanolamine Loaded Gold Nanoparticles Using 23 Full Factorial Design Approach.

Green Synthesis of Silver Nanoparticles with Exceptional Colloidal Stability and its Catalytic Activity Toward Nitrophenol Reduction

Nanoengineering of Gold Nanoparticles: Green Synthesis, Characterization, and Applications

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