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Chiara Uboldi et al.
Mutation research, 745(1-2), 11-20 (2011-11-19)
Although amorphous silica nanoparticles (aSiO(2)NPs) are believed to be non-toxic and are currently used in several industrial and biomedical applications including cosmetics, food additives and drug delivery systems, there is still no conclusive information on their cytotoxic, genotoxic and carcinogenic...
Meng Xing et al.
Analytica chimica acta, 686(1-2), 107-114 (2011-01-18)
Nitrate nitrogen and oxygen isotopes have been widely used to trace the nitrogen biogeochemical cycle by identifying NO(3)(-) sources. An improved method of anion exchange was developed to measure δ(15)N-NO(3)(-) in fresh water by continuous-flow elemental analyzer/isotope ratio mass spectrometry...
Woonsup Shin et al.
Analytical chemistry, 83(12), 5023-5025 (2011-05-10)
When a current or a voltage is applied across the ceramic membrane of the nongassing Ag/Ag(2)O-SiO(2)-Ag/Ag(2)O pump, protons produced in the anodic reaction 2Ag(s) + H(2)O → Ag(2)O(s) + 2H(+) + 2e(-) are driven to the cathode, where they are...