David M. Metzler

Growth and Some Enzymatic Responses of E. coli to Photocatalytic TiO2

Ayça Erdem, David M. Metzler, Hsun-Wen Chou, Huaxiang Lin et autres

The effects of photocatalytic nano-TiC^ on the survival or die-off of E coli (e.g. TB1) were investigated under ambient conditions. Experimentally, 18-hE. coli culture was exposed to photocatalytic nano-TiO 2 at various concentrations, e.g., 0 to 1,000 mg/L and particle sizes, e.g., …

Influence of Algae Age and Population on the Response to TiO2 Nanoparticles

David M. Metzler, Ayça Erdem, Chin Pao Huang

to titanium dioxide nanoparticles (TiO₂ NPs). The different algae age was obtained by changes in flow rate of continually stirred tank reactors prior to NP exposure. Increased algae age led to a decreased growth, variations in chlorophyll content, and an increased lipid …

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The short-term toxic effects of TiO2 nanoparticles toward bacteria through viability, cellular respiration, and lipid peroxidation

Ayça Erdem, David M. Metzler, Chin‐Pao Huang

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Inhibition of bacteria by photocatalytic nano-TiO2 particles in the absence of light

Ayça Erdem, David M. Metzler, Dongwon Cha, Chin‐Pao Huang

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Responses of Algal Cells to Engineered Nanoparticles Measured as Algal Cell Population, Chlorophyll a, and Lipid Peroxidation: Effect of Particle Size and Type

David M. Metzler, Ayça Erdem, Yu-Tung Tseng, Chihpin Huang

This paper investigated toxicity of three engineered nanoparticles (ENP), namely, Al 2 O 3 , SiO 2 , and TiO 2 to the unicellular green algae, exemplified by Pseudokirchneriella subcapitata with an emphasis on particle size. The changes in pH, cell counts, …

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Responses of algae to photocatalytic nano-TiO2 particles with an emphasis on the effect of particle size

David M. Metzler, Minghua Li, Ayça Erdem, Chin‐Pao Huang

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Responses of Pseudokirchneriella subcapitata and algal assembly to photocatalytic titanium dioxide nanoparticles

David M. Metzler

Nickel partitioning in acid soils at low moisture content

Alexander A. Ponizovsky, Suparna Thakali, Herbert E. Allen, Dominic M. Di Toro et autres

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Cadmium Release in Soil Solutions at Low Moisture Content

Ebenezer Mensah, Alexander A. Ponizovsky, Herbert E. Allen, David M. Metzler

Speciation of cadmium (Cd) was studied in four spiked agricultural soils at moisture content corresponding to 1.2 times field moisture capacity (FMC) and in the range from 1.2 FMC to soil–water 1∶10. Cadmium desorption isotherms were nonlinear in all soils, resulting in …

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The effect of moisture content on the release of organic matter and copper to soil solutions

Alexander A. Ponizovsky, David M. Metzler, Herbert E. Allen, Amanda J. Ackerman

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Terrestrial Biotic Ligand Model (TBLM) to predict copper toxicity in soil systems

Suparna Thakali, Alexander A. Ponizovsky, David M. Metzler, Henry T. Allen et autres