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Nanobubble Dynamics in Aqueous Surfactant Solutions Studied by Liquid-Phase Transmission Electron Microscopy Letter

Yuna Bae, Sungsu Kang a,b, Byung Hyo Kim, Kitaek Lim, Sungho Jeon, Sangdeok Shim, Won Chul Lee, Jungwon Park

Engineering 2021, Volume 7, Issue 5, Pages 630-635 doi: 10.1016/j.eng.2021.02.006

Abstract: Using liquid-phase transmission electron microscopy (TEM) with multi-chamber graphene liquid cells, bulk

Keywords： Nanobubbles In situ TEM Liquid-phase TEM Surfactant

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Dispersion of “guava-like” silica/polyacrylate nanocomposite particles in polyacrylate matrix

QI Dongming, YANG Lei, WU Minghua, SHAO Jianzhong, BAO Yongzhong

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2, Pages 127-134 doi: 10.1007/s11705-008-0033-0

Abstract: composite latex particles in tetrahydrofuran (THF) and the section transmission electron microscope (TEM

Keywords： silica/polyacrylate composite cross-linked network –70 guava-like TEM

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Interphase precipitation in low carbon Ti-V microalloyed steels

Jia Tao,Wei Jiao,Feng Jie,Zhang Weina,Liu Zhenyu and Wang Guodong

Strategic Study of CAE 2014, Volume 16, Issue 1, Pages 88-92

Abstract: Optical Microscopy （OM） and transmission electron microscopy （TEM） were employed to analyze the microstructure

Keywords： Ti-V microalloyed steel interphase precipitation isothermal phase transformation TEM

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A multi-integrated approach on toxicity effects of engineered TiO

Ana PICADO,Susana M. PAIXÃO,Liliana MOITA,Luis SILVA,Mário S. DINIZ,Joana LOURENÇO,Isabel PERES,Luisa CASTRO,José Brito CORREIA,Joana PEREIRA,Isabel FERREIRA,António Pedro Alves MATOS,Pedro BARQUINHA,Elsa MENDONCA

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5, Pages 793-803 doi: 10.1007/s11783-015-0775-0

Abstract: The new properties of engineered nanoparticles drive the need for new knowledge on the safety, fate, behavior and biologic effects of these particles on organisms and ecosystems. Titanium dioxide nanoparticles have been used extensively for a wide range of applications, e.g, self-cleaning surface coatings, solar cells, water treatment agents, topical sunscreens. Within this scenario increased environmental exposure can be expected but data on the ecotoxicological evaluation of nanoparticles are still scarce. The main purpose of this work was the evaluation of effects of TiO nanoparticles in several organisms, covering different trophic levels, using a battery of aquatic assays. Using fish as a vertebrate model organism tissue histological and ultrastructural observations and the stress enzyme activity were also studied. TiO nanoparticles (Aeroxide® P25), two phase composition of anatase (65%) and rutile (35%) with an average particle size value of 27.6±11 nm were used. Results on the EC for the tested aquatic organisms showed toxicity for the bacteria, the algae and the crustacean, being the algae the most sensitive tested organism. The aquatic plant showed no effect on growth. The fish showed no effect on a 21 day survival test, though at a biochemical level the cytosolic Glutathione-S-Transferase total activity, in intestines, showed a general significant decrease ( <0.05) after 14 days of exposure for all tested concentrations. The presence of TiO nanoparticles aggregates were observed in the intestine lumen but their internalization by intestine cells could not be confirmed.

Keywords： ecotoxicity enzymatic analysis histology transmission electron microscopy (TEM) TiO₂-nanoparticles