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16 results on '"DeFlorio, William"'

12. Multifunctional Antifouling Coatings Involving Mesoporous Nanosilica and Essential Oil with Superhydrophobic, Antibacterial, and Bacterial Antiadhesion Characteristics

Author

Mu, Minchen, primary, Lin, Yu-Ting, additional, DeFlorio, William, additional, Arcot, Yashwanth, additional, Liu, Shuhao, additional, Zhou, Wentao, additional, Wang, Xunhao, additional, Min, Younjin, additional, Cisneros-Zevallos, Luis, additional, and Akbulut, Mustafa, additional

Published
2023
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15. Influence of Surface Roughness of Hydrophobic and Superhydrophobic Substrates on Bacterial Adhesion: A Multiscale Investigation

Author

Oh, Jun Kyun, primary, Liu, Shuhao, additional, DeFlorio, William, additional, Hao, Li, additional, Kim, Sang Bum, additional, Salazar, Karla Solis, additional, Min, Younjin, additional, Taylor, Matthew, additional, Castillo, Alejandro, additional, Cisneros-Zevallos, Luis, additional, and Akbulut, Mustafa, additional

Published
2020
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16. Nanotoxicity of 2D Molybdenum Disulfide, MoS 2 , Nanosheets on Beneficial Soil Bacteria, Bacillus cereus and Pseudomonas aeruginosa.

Author

Bae, Michael, Oh, Jun Kyun, Liu, Shuhao, Nagabandi, Nirup, Yegin, Yagmur, DeFlorio, William, Cisneros-Zevallos, Luis, and Scholar, Ethan M. A.

Subjects
NANOSTRUCTURED materials, SOIL microbiology, MOLYBDENUM disulfide, PSEUDOMONAS aeruginosa, NITROGEN fixation, BACILLUS cereus
Abstract

Concerns arising from accidental and occasional releases of novel industrial nanomaterials to the environment and waterbodies are rapidly increasing as the production and utilization levels of nanomaterials increase every day. In particular, two-dimensional nanosheets are one of the most significant emerging classes of nanomaterials used or considered for use in numerous applications and devices. This study deals with the interactions between 2D molybdenum disulfide (MoS2) nanosheets and beneficial soil bacteria. It was found that the log-reduction in the survival of Gram-positive Bacillus cereus was 2.8 (99.83%) and 4.9 (99.9988%) upon exposure to 16.0 mg/mL bulk MoS2 (macroscale) and 2D MoS2 nanosheets (nanoscale), respectively. For the case of Gram-negative Pseudomonas aeruginosa, the log-reduction values in bacterial survival were 1.9 (98.60%) and 5.4 (99.9996%) for the same concentration of bulk MoS2 and MoS2 nanosheets, respectively. Based on these findings, it is important to consider the potential toxicity of MoS2 nanosheets on beneficial soil bacteria responsible for nitrate reduction and nitrogen fixation, soil formation, decomposition of dead and decayed natural materials, and transformation of toxic compounds into nontoxic compounds to adequately assess the environmental impact of 2D nanosheets and nanomaterials. [ABSTRACT FROM AUTHOR]

Published
2021
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