TiO2 exposure alters transition metal ion quota in Rhodococcus ruber GIN-1

Annastassia D. Gallo; Mark R. Zierden; Lauren A. Profitt; Kayleigh E. Jones; Christopher P. Bonafide; Ann M. Valentine

doi:10.1039/C9MT00305C

TiO₂ exposure alters transition metal ion quota in Rhodococcus ruber GIN-1†

Annastassia D. Gallo,

^a Mark R. Zierden,

^a Lauren A. Profitt,^a Kayleigh E. Jones,^a Christopher P. Bonafide

^bc and Ann M. Valentine

*^a

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* Corresponding authors

^a Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
E-mail: ann.valentine@temple.edu

^b Children's Hospital of Philadelphia, Section of Hospital Medicine, Philadelphia, PA 19104, USA

^c University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA

Abstract

After exposure to micron-sized TiO₂ particles, anatase and/or rutile, Rhodococcus ruber GIN-1 accumulates an increased concentration (2.2 ± 0.2 mg kg⁻¹) of mobilized Ti into its biomass with concomitant decreases in cellular biometals Fe, Zn, and possibly Mn, while levels of Cu and Al are unaffected.

Metallomics

TiO₂ exposure alters transition metal ion quota in Rhodococcus ruber GIN-1†

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Metallomics