Cysteine-Induced Modifications of Zero-valent Silver Nanomaterials: Implications for Particle Surface Chemistry, Aggregation, Dissolution, and Silver Speciation

2012 ◽  
Vol 46 (13) ◽  
pp. 7037-7045 ◽  
Author(s):  
Andreas P. Gondikas ◽  
Amanda Morris ◽  
Brian C. Reinsch ◽  
Stella M. Marinakos ◽  
Gregory V. Lowry ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Particle Surface ◽  
Silver Nanomaterials

scholarly journals Identification of Toxicity Parameters Associated with Combustion Produced Soot Surface Chemistry and Particle Structure by in Vitro Assays

Biomedicines ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 345
Author(s):  
Heba Al Housseiny ◽  
Madhu Singh ◽  
Shaneeka Emile ◽  
Marvin Nicoleau ◽  
Randy L. Vander Wal ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Surface Chemistry ◽  
Cell Viability ◽  
Health Effects ◽  
Stress Responses ◽  
Surface Composition ◽  
Particle Surface ◽  
In Vitro Assays ◽  
Epithelial Cell Line ◽  
And Oxidative Stress

Air pollution has become the world’s single biggest environmental health risk of the past decade, causing millions of yearly deaths worldwide. One of the dominant air pollutants is fine particulate matter (PM2.5), which is a product of combustion. Exposure to PM2.5 has been associated with decreased lung function, impaired immunity, and exacerbations of lung disease. Accumulating evidence suggests that many of the adverse health effects of PM2.5 exposure are associated with lung inflammation and oxidative stress. While the physical structure and surface chemistry of PM2.5 are surrogate measures of particle oxidative potential, little is known about their contributions to negative health effects. In this study, we used functionalized carbon black particles as surrogates for atmospherically aged combustion-formed soot to assess the effects of PM2.5 surface chemistry in lung cells. We exposed the BEAS-2B lung epithelial cell line to different soot at a range of concentrations and assessed cell viability, inflammation, and oxidative stress. Our results indicate that exposure to soot with varying particle surface composition results in differential cell viability rates, the expression of pro-inflammatory and oxidative stress genes, and protein carbonylation. We conclude that particle surface chemistry, specifically oxygen content, in soot modulates lung cell inflammatory and oxidative stress responses.

scholarly journals Ultrasound Assisted Electrodeposition of Cu-SiO2 Composite Coatings: Effect of Particle Surface Chemistry

2019 ◽  
Vol 166 (8) ◽  
pp. D244-D251 ◽  
Author(s):  
L. N. Bengoa ◽  
A. Ispas ◽  
J. F. Bengoa ◽  
A. Bund ◽  
W. A. Egli
Keyword(s):  
Surface Chemistry ◽  
Composite Coatings ◽  
Particle Surface ◽  
Ultrasound Assisted

Impact of particle surface chemistry on the structure and rheological properties of graphene-based particle/polydimethylsiloxane composites

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 34885-34893 ◽  
Author(s):  
Ran Niu ◽  
Jiang Gong ◽  
Donghua Xu ◽  
Tao Tang ◽  
Zhao-Yan Sun
Keyword(s):  
Surface Chemistry ◽  
Rheological Properties ◽  
Particle Surface ◽  
Particle Interaction

The inter-particle interaction of graphene-based particles has a key effect on the structure and rheological properties of graphene-based particle/polydimethylsiloxane composites.

Microstructure and permittivity of sintered BaTiO3: influence of particle surface chemistry in an aqueous medium

2004 ◽  
Vol 39 (1) ◽  
pp. 93-102 ◽  
Author(s):  
Sangkyu Lee ◽  
Ungyu Paik ◽  
Vincent A. Hackley ◽  
Yeon-Gil Jung ◽  
Kyung-Jin Yoon
Keyword(s):  
Surface Chemistry ◽  
Aqueous Medium ◽  
Particle Surface

scholarly journals On the effect of particle surface chemistry in film stratification and morphology regulation

Soft Matter ◽  
2020 ◽  
Vol 16 (27) ◽  
pp. 6371-6378
Author(s):  
Archana Samanta ◽  
Romain Bordes
Keyword(s):  
Surface Chemistry ◽  
Silica Nanoparticles ◽  
Particle Surface ◽  
Forming Process ◽  
Film Forming

The surface chemistry of silica nanoparticles and the resulting gelling tendency influence the stratification in the film forming process.

scholarly journals Impact of small changes in particle surface chemistry for unentangled polymer nanocomposites

Soft Matter ◽  
2015 ◽  
Vol 11 (8) ◽  
pp. 1634-1645 ◽  
Author(s):  
Moulik Ranka ◽  
Nihal Varkey ◽  
Subramanian Ramakrishnan ◽  
Charles F. Zukoski
Keyword(s):  
Molecular Weight ◽  
Polyethylene Glycol ◽  
Surface Chemistry ◽  
Polymer Nanocomposites ◽  
Silica Particle ◽  
Particle Surface

We report microstructural and rheological consequences of altering silica particle surface chemistry when the particles are suspended in unentangled polyethylene glycol with a molecular weight of 400.

The influences of the transfer method and particle surface chemistry on the dispersion of nanoparticles in nanocomposites

Nanoscale ◽  
2012 ◽  
Vol 4 (21) ◽  
pp. 6856 ◽  
Author(s):  
Olivier Pravaz ◽  
Benoît Droz ◽  
Peter Schurtenberger ◽  
Hervé Dietsch
Keyword(s):  
Surface Chemistry ◽  
Particle Surface ◽  
Transfer Method ◽  
Dispersion Of Nanoparticles
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