Optimization of High‐Yield Biological Synthesis of Single‐Crystalline Gold Nanoplates.

Liu, B.; Xie, Jianping; Lee, J. Y.; Ting, Yen‐Peng; Chen, J. Paul

doi:10.1002/chin.200545219

Cited by 16 publications

(22 citation statements)

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“…Luyan Wang 1, 2 , Xiao Chen 1* , Zhenwen Sun 1 and Yongcun Chai 1 Sargassum sp., the extract from the lemongrass plant, and other creative reducing agents (Shao et al, 2004;Shankar et al, 2004Shankar et al, , 2005Liu et al, 2005;Rai et al, 2006). Though some good results have been obtained in this field, it is still a large challenge for researchers to prepare two-dimensional gold nanostructures with controllable size and morphology.…”

Section: Synthesis Of Gold Nanoplates In Lecithin Lamellar Liquid Crymentioning

confidence: 99%

Synthesis of Gold Nanoplates in Lecithin Lamellar Liquid Crystals

et al. 2007

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Gold nanoplates mixed with spherical nanoparticles were prepared in lecithin lamellar liquid crystals containing non‐ionic surfactants as reductant. The effects of the concentrations of surfactants, reactants and salt on the formation of the nano‐products are discussed. The selective adsorption of lecithin headgroups on metal surfaces plays an important role in nanoplate formation. However, this effect is weakened by the large volume of the headgroups and only a few plates can be observed. Using biological liquid crystals as a template to synthesize the anisotropic noble metal nanoparticles will be helpful for better understanding the formation of nanostructures with controllable morphologies in biomimetic systems.

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Section: Synthesis Of Gold Nanoplates In Lecithin Lamellar Liquid Crymentioning

confidence: 99%

Synthesis of Gold Nanoplates in Lecithin Lamellar Liquid Crystals

et al. 2007

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“…The choice of an environmentally compatible solvent system, an eco-friendly reducing agent, and a nonhazardous capping agent for the stabilization of the nanoparticles are three main criteria for a totally "green" nanoparticles synthesis. For these reasons researchers in the field of nanoparticle synthesis turn to the biological systems where many organisms, both unicellular and multicellular, are known to produce inorganic nanostructures even though the actual mechanisms are not yet known because of the complexity of most biological reactions [8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Silver Nanoparticles and the Antibacterial and Anticancer Activities of the Crude Extract of Sargassum Polycystum C. Agardh

Nallamuthu¹,

Venkatalakshmi²,

Chinnasamy³

et al. 2012

Nano BioMed ENG

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ArticleSynthesis of silver nanoparticles and the antibacterial and anticancer activities of the crude extract of sargassum polycystum C. Agardh AbstractThe potential of the methanolic extract of the seaweed, Sargassum polycystum in the synthesis of silver nanoparticles was investigated. The extract synthesized appreciable quantities of silver nanoparticles of the size 5-7 nm, in 24 hrs. The particles were characterized by UV-Vis, FT-IR spectroscopy, HRTEM and XRD analysis. The results indicated that the algal extract can be utilized as an eco-friendly system for the synthesis of silver nanoparticles for various applications in the field of medicine. The methanolic extract of the alga, silver nitrate solution and their combination were tested for their antimicrobial activities against Pseudomonas aeruginosa, Klebsiella pneumoniae, Escherichia coli and Staphylococcus aureus. Anticancer activity of the extract and the silver nanoparticles were evaluated against the breast cancer line MCF-7. Active compounds in the crude extract of the alga were separated and identified as fatty acids by GC-MS analysis. These fatty acids together with the silver nanoparticles exhibited anticancer activity against the breast cancer cell line MCF-7. Results are presented and discussed in detail. Citation: N. Thangaraju, et al. Synthesis of silver nanoparticles and the antibacterial and anticancer activities of the crude extract of sargassum polycystum c.

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“…In summary, in comparison to some bio‐based prismatic structures synthesis studies; our approach is greener, simple with careful tuning of metal salt to LE, mild reaction conditions, low degree of polydispersity (limiting to spherical and triangular structures) and has the scale‐up capability for large scale production. The obtained NPs can be employed in various products like air, water filter materials, textiles, and medical applications.…”

Section: Resultsmentioning

confidence: 96%

A promising technique of Aegle marmelos leaf extract mediated self‐assembly for silver nanoprism formation

2017

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The Aegle marmelos leaf extract (LE) mediated synthesis of prismatic and spherical Ag nanoparticles (NPs) has been studied. The formation of prismatic structures from spherical NPs was observed microscopically using scanning electron microscope, transmission electron microscope, and atomic force microscope. The shape transformation from spherical NPs to prismatic nanostructures was studied by simply changing LE concentration, keeping constant AgNO3 concentration (1 mM). The role of pH toward prism formation and the effect of sonication on the formed structures were also investigated. The antimicrobial activity of the synthesized Ag spherical/prismatic NPs was evaluated against gram negative bacteria (Escherichia coli, Pseudomonas aeruginosa) and on a phytopathogen Fusarium solani. This green synthesis approach for the synthesis of prismatic Ag nanostructures may be useful for surface‐enhanced Raman spectroscopy application for the detection of low concentration organic molecules, apart from the studied antimicrobial activity. © 2017 American Institute of Chemical Engineers AIChE J, 63: 3670–3680, 2017

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Optimization of High‐Yield Biological Synthesis of Single‐Crystalline Gold Nanoplates.

Cited by 16 publications

References 1 publication

Synthesis of Gold Nanoplates in Lecithin Lamellar Liquid Crystals

Synthesis of Gold Nanoplates in Lecithin Lamellar Liquid Crystals

Synthesis of Silver Nanoparticles and the Antibacterial and Anticancer Activities of the Crude Extract of Sargassum Polycystum C. Agardh

A promising technique of Aegle marmelos leaf extract mediated self‐assembly for silver nanoprism formation

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