scholarly journals Dispersion and sedimentation of titanium dioxide nanoparticles in freshwater algae and daphnia aquatic culture media in the presence of arsenate

2018 ◽  
Vol 13 (1) ◽  
pp. 119-129 ◽  
Author(s):  
Zhenhong Wang ◽  
Zhuanxi Luo ◽  
Yamen Yan
Keyword(s):  
Titanium Dioxide ◽  
Culture Media ◽  
Titanium Dioxide Nanoparticles ◽  
Freshwater Algae

Titanium dioxide nanoparticles enhance inorganic arsenic bioavailability and methylation in two freshwater algae species

2018 ◽  
Vol 238 ◽  
pp. 631-637 ◽  
Author(s):  
Zhuanxi Luo ◽  
Zhenhong Wang ◽  
Yameng Yan ◽  
Jinli Li ◽  
Changzhou Yan ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Titanium Dioxide Nanoparticles ◽  
Inorganic Arsenic ◽  
Freshwater Algae

scholarly journals Morphological and Physicochemical Characterization of Agglomerates of Titanium Dioxide Nanoparticles in Cell Culture Media

2016 ◽  
Vol 2016 ◽  
pp. 1-19 ◽  
Author(s):  
Verónica Freyre-Fonseca ◽  
Darío I. Téllez-Medina ◽  
Estefany I. Medina-Reyes ◽  
Maribel Cornejo-Mazón ◽  
Edgar O. López-Villegas ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Culture Media ◽  
Titanium Dioxide Nanoparticles ◽  
Physicochemical Characterization ◽  
Cell Culture Media ◽  
Size Stability ◽  
Maximum Stability

Titanium dioxide nanoparticles (TiO2NP) are possible carcinogenic materials (2B-IARC) and their toxicity depends on shape, size, and electrical charge of primary NP and on the system formed by NP media. The aim of this work was to characterize agglomerates of three TiO2NP by evaluating their morphometry, stability, and zeta potential (ζ) in liquid media and their changes with time. Sizes of agglomerates by dynamic light scattering (DLS) resulted to be 10–50 times larger than those obtained by digital image analysis (DIA) given the charged zone around particles. Fractal dimension (FD) was highest for agglomerates of spheres and belts in F12K, and in E171 in FBS media. E171 and belts increased FD with time. At time zero, using water as dispersant FD was larger for agglomerates of spheres than for of E171. Belts suspended in water had the smallest values of circularity (Ci) which was approximately unchanged with time. All dispersions hadζvalues around −30 mV at physiological pH (7.4) and dispersions of NP in water and FBS showed maximum stability (Turbiscan Lab analysis). Results help in understanding the complex NP geometry-size-stability relationships when performingin vivoandin vitroenvironmental-toxicity works and help in supporting decisions on the usage of TiO2NP.

UVΑ pre-irradiation to P25 titanium dioxide nanoparticles enhanced its toxicity towards freshwater algae Scenedesmus obliquus

2018 ◽  
Vol 25 (17) ◽  
pp. 16729-16742 ◽  
Author(s):  
Barsha Roy ◽  
Hemamalini Chandrasekaran ◽  
Suresh Palamadai Krishnan ◽  
Natarajan Chandrasekaran ◽  
Amitava Mukherjee
Keyword(s):  
Titanium Dioxide ◽  
Titanium Dioxide Nanoparticles ◽  
Scenedesmus Obliquus ◽  
Freshwater Algae

Cellular interactions and biological responses to titanium dioxide nanoparticles in HepG2 and BEAS-2B cells: Role of cell culture media

2014 ◽  
Vol 55 (4) ◽  
pp. 336-342 ◽  
Author(s):  
Raju Y. Prasad ◽  
Steven O. Simmons ◽  
Micaela G. Killius ◽  
Robert M. Zucker ◽  
Andrew D. Kligerman ◽  
...  
Keyword(s):  
Cell Culture ◽  
Titanium Dioxide ◽  
Culture Media ◽  
Titanium Dioxide Nanoparticles ◽  
Cellular Interactions ◽  
Cell Culture Media ◽  
Biological Responses

scholarly journals Methods of determining titanium dioxide nanoparticles enhance inorganic arsenic bioavailability and methylation in two freshwater algae species

MethodsX ◽  
2018 ◽  
Vol 5 ◽  
pp. 620-625
Author(s):  
Zhuanxi Luo ◽  
Zhenhong Wang ◽  
Yameng Yan ◽  
Jinli Li ◽  
Changzhou Yan ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Titanium Dioxide Nanoparticles ◽  
Inorganic Arsenic ◽  
Freshwater Algae
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