An insight into the dependency on sample preparation for (eco) toxicity assessment of TiO 2 nanoparticles
- PDF / 1,389,484 Bytes
- 14 Pages / 547.087 x 737.008 pts Page_size
- 88 Downloads / 216 Views
An insight into the dependency on sample preparation for (eco) toxicity assessment of TiO2 nanoparticles Asli Baysal
&
Hasan Saygin & Gul Sirin Ustabasi
Received: 1 June 2019 / Accepted: 21 January 2020 # Springer Nature Switzerland AG 2020
Abstract Assessing the environmental hazard of nanoparticles can be a challenging task using various testing strategies. However, to our knowledge, no information is available about the impact of the sample preparation on the toxicity and toxicity mechanism of nanoparticles. For this aim, three sample preparation methods and their available toxicity procedures were conducted to examine the (eco) toxicity of TiO2 nanoparticles using bacteria model system. To detail understanding of the effect of sample preparation, the key events on the inhibition were examined by physicochemical and antioxidant responses. The findings showed that the physicochemical and toxicological behavior of the tested TiO2 NPs varied according to the sample preparation method.
Keywords Nanoparticle toxicity . Bacteria . Surface chemistry . Inhibition mechanism . Seawater . Environmental matrix
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10661-020-8107-7) contains supplementary material, which is available to authorized users. A. Baysal (*) : G. S. Ustabasi Health Services Vocational School of Higher Education, T.C. Istanbul Aydin University, Sefakoy Kucukcekmece, 34295 Istanbul, Turkey e-mail: [email protected] H. Saygin Application and Research Center for Advanced Studies, T.C. Istanbul Aydin University, Sefakoy Kucukcekmece, 34295 Istanbul, Turkey
Introduction Because the metal oxide nanoparticles (NPs) have enormous properties, their production and usage have increased rapidly. Thus, their release into various environments (aqueous, soil, air) seems inevitable (Seitz et al. 2016). Currently, titanium dioxide (TiO2) is one of the most important and commercially used NPs due to their broad and ever-increasing application range. TiO2 is found in nature in three major polymorphs: anatase, rutile, and brookite that show different photocatalytic activity. Rutile and anatase are most abundant. Of these, rutile is also known as the most stable crystalline form of TiO2. Anatase is a less dense, softer, smaller form of TiO2 that possesses higher catalytic activity owing to relatively larger bandgap and deeper surface activity of the electrons of anatase than rutile (Rosenfeldt et al. 2015; Johnson et al. 2017; Liu et al. 2012). The (eco) toxicity of NPs have been investigated in mammalian cell lines, microorganisms (bacteria, yeasts, fungi, etc.), and plants in dozens of articles (Handy et al. 2008; Simon-Deckers et al. 2009; Djurisic et al. 2015; Hjorth et al. 2017; Zhang et al. 2018; Lespes 2019). In the literature, numerous articles examined the (eco) toxicity of NPs using bacteria model system because bacteria play important roles in the environment (Handy et al. 2008; Simon-Deckers et al. 2009; Planchon et al. 2013; Djurisic et al. 2015; Baysal e
Data Loading...
