One-step synthesis of biocompatible gold nanoparticles using gallic acid in the presence of poly-(N-vinyl-2-pyrrolidone)

Wang, Wenxing; Chen, Qifan; Jiang, Cha; Yang, Dongzhi; Liu, Xingmin; Xu, Shukun

doi:10.1016/j.colsurfa.2006.12.037

Cited by 143 publications

(82 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…182 Tri-n-octylphosphine oxide (TOPO), has been used in the presence of stabilizer octadecylamine. 183,184 Studies using phosphine, 185,186 carboxylate ligands, 187–190 lactic acid, 191 and hydroquinone 192 as stabilizing ligands have also been documented.…”

Section: Synthesis and Surface Functionalizationmentioning

confidence: 99%

Gold Nanoparticles in Chemical and Biological Sensing

et al. 2012

View full text Add to dashboard Cite

Section: Synthesis and Surface Functionalizationmentioning

confidence: 99%

Gold Nanoparticles in Chemical and Biological Sensing

et al. 2012

View full text Add to dashboard Cite

“…Flower-like and polyhedral AuNPs were synthesized according to procedures described elsewhere [28,29]. Sample preparation and reaction conditions were described in previous work [22].…”

Section: Gold Nanoparticles and Sample Preparation For Msmentioning

confidence: 99%

Clusters of Monoisotopic Elements for Calibration in (TOF) Mass Spectrometry

Kolářová

Prokeš

Kučera

et al. 2016

J. Am. Soc. Mass Spectrom.

View full text Add to dashboard Cite

Abstract. Precise calibration in TOF MS requires suitable and reliable standards, which are not always available for high masses. We evaluated inorganic clusters of the monoisotopic elements gold and phosphorus (Au n + /Au n -and P n + /P n -) as an alternative to peptides or proteins for the external and internal calibration of mass spectra in various experimental and instrumental scenarios. Monoisotopic gold or phosphorus clusters can be easily generated in situ from suitable precursors by laser desorption/ionization (LDI) or matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). Their use offers numerous advantages, including simplicity of preparation, biological inertness, and exact mass determination even at lower mass resolution. We used citrate-stabilized gold nanoparticles to generate gold calibration clusters, and red phosphorus powder to generate phosphorus clusters. Both elements can be added to samples to perform internal calibration up to mass-to-charge (m/z) 10-15,000 without significantly interfering with the analyte. We demonstrated the use of the gold and phosphorous clusters in the MS analysis of complex biological samples, including microbial standards and total extracts of mouse embryonic fibroblasts. We believe that clusters of monoisotopic elements could be used as generally applicable calibrants for complex biological samples.

show abstract

“…At a constant alginate concentration, a higher Ag + concentration means a lower ratio of alginate/Ag + (metal precursor) and the probability of anisotropic shape particles formation increases. Wang, et al [32] and Hoppe, et al [14] also found this trend in the synthesis of gold and silver nanoparticles in the presence of poly(vinylpyrrolidone), respectively. As the alginate concentration remained constant, the amount of available reducing groups of alginate did not alter, so that the stabilization of Ag-NP was solely controlled by the Ag + concentration.…”

Section: Effect Of Ag Precursor Salt Concentrationmentioning

confidence: 76%

The Synthesis of Alginate-Capped Silver Nanoparticles under Microwave Irradiation

2015

View full text Add to dashboard Cite

Abstract. Synthesis of silver nanoparticles (Ag-NP) was successfully performed within a few minutes by microwave irradiation of the precursor salt (AgNO 3 ) and alginate mixed solution in one pot. Herein, alginate molecules acted as both a reducing and stabilizing agent for the preparation of the silver nanoparticles. The obtained nanoparticles were characterized by ultraviolet-visible (UV-Vis) spectroscopy, particle size analysis (PSA), Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM). The pH and concentration ratio of the alginate/metal precursor salt greatly influenced the particle size and its distribution of Ag-NP. The higher the pH the higher the nucleation rate and the larger the electrostatic stabilization, while both of them were responsible for producing a smaller particle size and a narrower size distribution. A higher concentration ratio also yielded a smaller particle size and a narrower size distribution, but above the optimum ratio, the trend was conversely changed due to the reducing capability of the alginate, which was dominant above the optimum ratio, thus creating a high density of nuclei, allowing aggregation to occur. A lower ratio not only led to a higher tendency to produce larger particles, but also a higher probability of anisotropic particle shape formation due to the lack of reducing capability of the alginates.

show abstract

One-step synthesis of biocompatible gold nanoparticles using gallic acid in the presence of poly-(N-vinyl-2-pyrrolidone)

Cited by 143 publications

References 43 publications

Gold Nanoparticles in Chemical and Biological Sensing

Gold Nanoparticles in Chemical and Biological Sensing

Clusters of Monoisotopic Elements for Calibration in (TOF) Mass Spectrometry

The Synthesis of Alginate-Capped Silver Nanoparticles under Microwave Irradiation

Contact Info

Product

Resources

About