Size-dependent SERS detection of R6G by silver nanoparticles immersion-plated on silicon nanoporous pillar array

2012 ◽  
Vol 258 (15) ◽  
pp. 5881-5885 ◽  
Author(s):  
Yong Qiang Wang ◽  
Sheng Ma ◽  
Qian Qian Yang ◽  
Xin Jian Li
Keyword(s):  
Silver Nanoparticles ◽  
Pillar Array ◽  
Size Dependent ◽  
Sers Detection

scholarly journals Exposure Media and Nanoparticle Size Influence on the Fate, Bioaccumulation, and Toxicity of Silver Nanoparticles to Higher Plant Salvinia minima

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2305
Author(s):  
Melusi Thwala ◽  
Stephen Klaine ◽  
Ndeke Musee
Keyword(s):  
Silver Nanoparticles ◽  
Analytical Techniques ◽  
Hard Water ◽  
Higher Plant ◽  
X Ray ◽  
Chlorophyll Pigments ◽  
Size Dependent ◽  
Predicted Environmental Concentrations ◽  
Low Exposure ◽  
Toxicity Pattern

Silver nanoparticles (AgNPs) are favoured antibacterial agents in nano-enabled products and can be released into water resources where they potentially elicit adverse effects. Herein, interactions of 10 and 40 nm AgNPs (10-AgNPs and 40-AgNPs) with aquatic higher plant Salvinia minima at 600 µg/L in moderately hard water (MHW), MHW of raised calcium (Ca2+), and MHW containing natural organic matter (NOM) were examined. The exposure media variants altered the AgNPs’ surface properties, causing size-dependent agglomeration. The bio-accessibility in the ascending order was: NOM < MHW < Ca2+, was higher in plants exposed to 10-AgNPs, and across all exposures, accumulation was higher in roots compared to fronds. The AgNPs reduced plant growth and the production of chlorophyll pigments a and b; the toxic effects were influenced by exposure media chemistry, and the smaller 10-AgNPs were commonly the most toxic relative to 40-AgNPs. The toxicity pattern was linked to the averagely higher dissolution of 10-AgNPs compared to the larger counterparts. The scanning electron microscopy and X-ray fluorescence analytical techniques were found limited in examining the interaction of the plants with AgNPs at the low exposure concentration used in this study, thus challenging their applicability considering the even lower predicted environmental concentrations AgNPs.

Size-dependent cytotoxicity of silver nanoparticles in human neutrophils

2015 ◽  
Vol 238 (2) ◽  
pp. S216 ◽  
Author(s):  
T. Soares ◽  
D. Ribeiro ◽  
E. Fernandes ◽  
M. Freitas
Keyword(s):  
Silver Nanoparticles ◽  
Human Neutrophils ◽  
Size Dependent

Space confined electroless deposition of silver nanoparticles for highly-uniform SERS detection

2018 ◽  
Vol 255 ◽  
pp. 1401-1406 ◽  
Author(s):  
Lingxiao Liu ◽  
Feifei Wu ◽  
Daren Xu ◽  
Ning Li ◽  
Nan Lu
Keyword(s):  
Silver Nanoparticles ◽  
Electroless Deposition ◽  
Sers Detection ◽  
Highly Uniform

scholarly journals Size-dependent acute toxicity of silver nanoparticles in mice

2018 ◽  
Vol 31 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Young-Man Cho ◽  
Yasuko Mizuta ◽  
Jun-ichi Akagi ◽  
Takeshi Toyoda ◽  
Mizuki Sone ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acute Toxicity ◽  
Size Dependent

Nanotoxicity of Silver Nanoparticles to Red Blood Cells: Size Dependent Adsorption, Uptake, and Hemolytic Activity

2015 ◽  
Vol 28 (3) ◽  
pp. 501-509 ◽  
Author(s):  
Li Qiang Chen ◽  
Li Fang ◽  
Jian Ling ◽  
Cheng Zhi Ding ◽  
Bin Kang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Red Blood Cells ◽  
Hemolytic Activity ◽  
Blood Cells ◽  
Size Dependent

scholarly journals Size-dependent activity of silver nanoparticles on the morphological switch and biofilm formation of opportunistic pathogenic yeasts

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Bettina Szerencsés ◽  
Nóra Igaz ◽  
Ákos Tóbiás ◽  
Zsombor Prucsi ◽  
Andrea Rónavári ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Biofilm Formation ◽  
Size Dependent ◽  
Dependent Activity ◽  
Opportunistic Pathogenic

scholarly journals Size dependent anti-invasiveness of silver nanoparticles in lung cancer cells

RSC Advances ◽  
2019 ◽  
Vol 9 (37) ◽  
pp. 21134-21138 ◽  
Author(s):  
Yu Mei Que ◽  
Xiao Qing Fan ◽  
Xiao Juan Lin ◽  
Xiao Li Jiang ◽  
Ping Ping Hu ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Silver Nanoparticles ◽  
Cancer Cells ◽  
Elevated Level ◽  
A549 Cells ◽  
Migration And Invasion ◽  
Size Dependent ◽  
Adenocarcinoma Cells ◽  
Lung Adenocarcinoma Cells ◽  
A549 Lung

Size-dependent anti-invasiveness effect of AgNPs was determined using A549 lung adenocarcinoma cells. The 13 nm AgNPs can significantly inhibit the migration and invasion of A549 cells and induce the elevated level of ROS and NF-κB directed cell apoptosis.

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