Size and shape dependant antifungal activity of gold nanoparticles: A case study of Candida

2013 ◽  
Vol 101 ◽  
pp. 162-170 ◽  
Author(s):  
Irshad A. Wani ◽  
Tokeer Ahmad
Keyword(s):  
Gold Nanoparticles ◽  
Antifungal Activity ◽  
Size And Shape

scholarly journals The puzzle of toxicity of gold nanoparticles. The case-study of HeLa cells

2015 ◽  
Vol 4 (4) ◽  
pp. 796-800 ◽  
Author(s):  
Ilaria Fratoddi ◽  
Iole Venditti ◽  
Cesare Cametti ◽  
Maria Vittoria Russo
Keyword(s):  
Gold Nanoparticles ◽  
Hela Cells ◽  
Particle Concentration ◽  
Size And Shape ◽  
Functionalized Gold Nanoparticles

Data on the viability of HeLa cells exposed to functionalized gold nanoparticles have been analyzed on the basis of metrics based on the numerical particle concentration that takes into account both the size and shape of the nanoparticles.

scholarly journals Size and Shape-Dependent Antimicrobial Activities of Silver and Gold Nanoparticles: A Model Study as Potential Fungicides

Molecules ◽  
2020 ◽  
Vol 25 (11) ◽  
pp. 2682 ◽  
Author(s):  
Francis J. Osonga ◽  
Ali Akgul ◽  
Idris Yazgan ◽  
Ayfer Akgul ◽  
Gaddi B. Eshun ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Pathogenic Fungi ◽  
Antimicrobial Activities ◽  
Plant Diseases ◽  
Production Plant ◽  
Silver And Gold Nanoparticles ◽  
Size And Shape ◽  
Model Study ◽  
Pathogenic Microbes ◽  
Bacteria And Fungi

Plant-based pathogenic microbes hinder the yield and quality of food production. Plant diseases have caused an increase in food costs due to crop destruction. There is a need to develop novel methods that can target and mitigate pathogenic microbes. This study focuses on investigating the effects of luteolin tetraphosphate derived silver nanoparticles (LTP-AgNPs) and gold nanoparticles (LTP-AuNPs) as a therapeutic agent on the growth and expression of plant-based bacteria and fungi. In this study, the silver and gold nanoparticles were synthesized at room temperature using luteolin tetraphosphate (LTP) as the reducing and capping agents. The synthesis of LTP-AgNPs and LTP-AuNP was characterized by Transmission Electron Microscopy (TEM) and size distribution. The TEM images of both LTP-AgNPs and LTP-AuNPs showed different sizes and shapes (spherical, quasi-spherical, and cuboidal). The antimicrobial test was conducted using fungi: Aspergillus nidulans, Trichaptum biforme, Penicillium italicum, Fusarium oxysporum, and Colletotrichum gloeosporioides, while the class of bacteria employed include Pseudomonas aeruginosa, Aeromonas hydrophila, Escherichia coli, and Citrobacter freundii as Gram (−) bacteria, and Listeria monocytogenes and Staphylococcus epidermidis as Gram (+) bacterium. The antifungal study demonstrated the selective size and shape-dependent capabilities in which smaller sized spherical (9 nm) and quasi-spherical (21 nm) AgNPs exhibited 100% inhibition of the tested fungi and bacteria. The LTP-AgNPs exhibited a higher antimicrobial activity than LTP-AuNPs. We have demonstrated that smaller sized AgNPs showed excellent inhibition of A. nidulans growth compared to the larger size nanoparticles. These results suggest that LTP-AuNP and LTP-AgNPs could be used to address the detection and remediation of pathogenic fungi, respectively.

Transdermal delivery of poly(ethylene glycol)-co-oleylamine modified gold nanoparticles: Effect of size and shape

2019 ◽  
Vol 224 ◽  
pp. 22-28 ◽  
Author(s):  
Pa Fan Hsiao ◽  
Hsieh-Chih Tsai ◽  
Sydney Peng ◽  
Adhimoorthy Prasannan ◽  
Ting-Cheng Tang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ethylene Glycol ◽  
Transdermal Delivery ◽  
Poly Ethylene Glycol ◽  
Size And Shape ◽  
Poly Ethylene

scholarly journals Sexual differences in size and shape of the Mosor rock lizard [Dinarolacerta mosorensis (Kolombatovic, 1886)] (squamata: lacertidae): A case study of the Lovcen mountain population (Montenegro)

2008 ◽  
Vol 60 (2) ◽  
pp. 279-288 ◽  
Author(s):  
Katarina Ljubisavljevic ◽  
Lidija Polovic ◽  
Ana Ivanovic
Keyword(s):  
Sexual Differences ◽  
Size Difference ◽  
Morphometric Characters ◽  
Positive Allometry ◽  
Size And Shape ◽  
Rock Lizard ◽  
Head Height ◽  
Dorsal Pattern ◽  
Mountain Population

Sexual differences in size and shape of the Mosor rock lizard, Dinarolacerta mosorensis (Kolombatovic, 1886), from Lovcen Mountain (Montenegro) were examined on the basis of the intersex variation pattern of nine morphometric, eight pholidotic, and four qualitative traits. Sexual dimorphism was apparent for all morphometric characters except snout-vent length, while scalation and dorsal pattern exhibited small differences between sexes. The value of the sexual size difference (SSD) index based on snout-vent length was 1.028. The sex-specific allometric slopes for head dimensions and interlimb distance significantly diverged. Head dimensions, especially head height, showed strong positive allometry in males, while interlimb distance was the only character which showed positive allometry in females. Generally, males had significantly greater body size than females. This was true of all body measurements except interlimb distance. The influence of sexual and natural selection on the examined traits is discussed.

Synthesis of Gold Nanoparticles in Liquid Polyethylene Glycol by Sputter Deposition and Temperature Effects on their Size and Shape

2011 ◽  
Vol 115 (8) ◽  
pp. 3279-3285 ◽  
Author(s):  
Yoshikiyo Hatakeyama ◽  
Takeshi Morita ◽  
Satoshi Takahashi ◽  
Kei Onishi ◽  
Keiko Nishikawa
Keyword(s):  
Gold Nanoparticles ◽  
Polyethylene Glycol ◽  
Temperature Effects ◽  
Sputter Deposition ◽  
Size And Shape
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