Synthesis and characterization of gold nanoparticles biosynthesised from Aspalathus linearis (Burm.f.) R.Dahlgren For progressive macular hypomelanosis

Water-soluble gold nanoparticles (AuNPs) were prepared using 2-mercapto-4-methyl-5- thiazoleacetic acid (MMTA) as a stabilizing agent and sodium borohydride (NaBH4) as a reducing agent. The AuNPs product was analyzed by transmission electron microscopy (TEM), UV-vis absorption spectroscopy and Fourier transform infrared spectroscopy (FTIR). The TEM image shows that the particles were well-dispersed and their average particle size is about 5 nm. The UV-vis absorption and FTIR spectra confirm that the MMTA-AuNPs was stabilized by the carboxylate ions present on the surface of the AuNPs.

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Synthesis and characterization of gold nanoparticles usingHypericum perforatumandNettleaqueous extracts: A comparison with turkevich method

Environmental Progress & Sustainable Energy ◽

10.1002/ep.12964 ◽

2018 ◽

Vol 38 (2) ◽

pp. 508-517 ◽

Cited By ~ 3

Author(s):

Abbas Jafarizad ◽

Khadijeh Safaee ◽

Behrouz Vahid ◽

Alireza Khataee ◽

Duygu Ekinci

Keyword(s):

Gold Nanoparticles ◽

Synthesis And Characterization

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Synthesis and characterization of biopolymer agar mediated gold nanoparticles

Materials Letters ◽

10.1016/j.matlet.2014.11.069 ◽

2015 ◽

Vol 141 ◽

pp. 114-117 ◽

Cited By ~ 8

Author(s):

Jong-Whan Rhim ◽

Paulraj Kanmani

Keyword(s):

Gold Nanoparticles ◽

Synthesis And Characterization

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SYNTHESIS AND CHARACTERIZATION OF BISMERCAPTO (2, 2′:6′, 2″-terpyridine) Ru(II)-COMPLEXES STABILIZED GOLD NANOPARTICLES AND THEIR ELECTRO CATALYTIC REDUCTION OF NITRITE

Journal of the Chilean Chemical Society ◽

10.4067/s0717-97072017000403691 ◽

2017 ◽

Vol 62 (4) ◽

pp. 3691-3699

Author(s):

K MARGANDAN ◽

SONIA JAS M JEBASTIN

Keyword(s):

Gold Nanoparticles ◽

Catalytic Reduction ◽

Synthesis And Characterization

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A green chemistry approach for the synthesis and characterization of bioactive gold nanoparticles using Azolla microphylla methanol extract

Frontiers of Materials Science ◽

10.1007/s11706-014-0246-8 ◽

2014 ◽

Vol 8 (2) ◽

pp. 123-135 ◽

Cited By ~ 16

Author(s):

Selvaraj Kunjiappan ◽

Ranjana Chowdhury ◽

Chiranjib Bhattacharjee

Keyword(s):

Gold Nanoparticles ◽

Green Chemistry ◽

Methanol Extract ◽

Synthesis And Characterization ◽

Azolla Microphylla

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Synthesis and Characterization of Gold Nanoparticles Synthesized in Gel and Paper by Electrolysis

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.824.163 ◽

2019 ◽

Vol 824 ◽

pp. 163-167

Author(s):

Pema Dechen ◽

Ekasith Somsook

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Gold Nanoparticles ◽

Room Temperature ◽

Synthesis And Characterization ◽

Visible Spectroscopy ◽

Gold Leaf ◽

Uv Visible ◽

Scanning Electron

In this report, synthesis and characterization of gold nanoparticles (AuNPs) from gold leaf by electrolysis in two different media (gel and paper) in presence of sodium chloride (NaCl), glucose (C6H12O6) and polyvinyl pyrrolidone (PVP) at room temperature were investigated. Graphite was used as two electrodes, NaCl was used as an electrolyte, C6H12O6 was used as reducing agent and PVP was used as stabilizer to control the aggregation of the nanoparticles. UV-Visible spectroscopy (UV-Vis) and scanning electron microscopy (SEM) were used to confirm the characteristics and morphologies of the synthesized AuNPs.

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The Synthesis and Characterization of PEG-SH-Modified Gold Nanoparticle in One-Pot Synthesis by Stenotrophomonas maltophilia

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2019.16625 ◽

2019 ◽

Vol 19 (11) ◽

pp. 7278-7284

Author(s):

Jian-Yuan Huang ◽

Min-Hua Chen ◽

Feng-Huei Lin

Keyword(s):

Gold Nanoparticles ◽

Gold Nanoparticle ◽

Stenotrophomonas Maltophilia ◽

Culture Medium ◽

Synthesis And Characterization ◽

One Pot ◽

Residual Solvent ◽

Green Route ◽

The Relationship

Colloidal gold nanoparticles have been researched and utilized in many technical applications. However, the conventionalmethods to produce polyethyleneglycol (PEG) immobilized gold nanoparticles have to take several steps, including residual solvent removing. In the study, we propose an idea green route to synthesize gold nanoparticles by using Stenotrophomonas maltophilia in a one-pot reaction. The relationship between Au precursor and S. maltophilia was evaluated systematically. After PEG-SH addition, the bacterial cell wall was broken down and the synthetic nanoparticles could be released into culture medium. Furthermore, we identified that the crystal structure of synthetic gold nanoparticle was face-center cubic and PEG-SH was immobilized on synthetic gold nanoparticle ideally. The size of Au-PEG-SH was smaller than 30 nm. These findings suggest that gold nanoparticle with PEG-SH modification could be prepared in an eco-friendly one-pot reaction through the metabolic activity of S. maltophilia.

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Stability, cytotoxicity and cell uptake of water-soluble dendron–conjugated gold nanoparticles with 3, 12 and 17 nm cores

Journal of Materials Chemistry B ◽

10.1039/c5tb00608b ◽

2015 ◽

Vol 3 (29) ◽

pp. 6071-6080 ◽

Cited By ~ 14

Author(s):

Suprit Deol ◽

Nisala Weerasuriya ◽

Young-Seok Shon

Keyword(s):

Gold Nanoparticles ◽

Water Soluble ◽

Cell Uptake ◽

Synthesis And Characterization

The synthesis and characterization of water-soluble dendron–conjugated gold nanoparticles (Den–AuNPs) with regard to stability, cytotoxicity and cell uptake are presented.

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