The two faces of nanomaterials: A quantification of hormesis in algae and plants

Environment International
Evgenios AgathokleousE J Calabrese

Abstract

The rapid progress in nanotechnology has dramatically promoted the application of engineered nanomaterials in numerous sectors. The wide application of nanomaterials and the potential accumulation in the environment sparked interest in studying the effects of nanomaterials on algae and plants. Hormesis is a dose response phenomenon characterized by a biphasic dose response with a low dose stimulation and a high dose inhibition. This paper quantifies for the first time nanomaterial-induced hormesis in algae and plants. Five hundred hormetic concentration-response relationships were mined from the published literature. The median maximum stimulatory response (MAX) was 123%, and commonly below 200%, of control response. It was also lower in algae than in plants, and occurred commonly at concentrations <100 mg L-1. The no-observed-adverse-effect-level (NOAEL) to MAX ratio was 2.4 for algae and 1.7 for plants, and the two distributions differed significantly. Ag nanoparticles induced higher MAX than TiO2 and ZnO nanoparticles. The MAX varied upon nanomaterial application methods, growth stage of application (seed versus vegetative), type of endpoint and time window. While nanomaterial size did not affect significantly the MAX, sizes...Continue Reading

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Citations

Aug 28, 2020·Nanomaterials·Luis A ParamoKaren Esquivel
Dec 15, 2019·The Science of the Total Environment·Evgenios Agathokleous, Edward J Calabrese
Oct 24, 2020·The Science of the Total Environment·Edward J Calabrese, Evgenios Agathokleous
Dec 31, 2020·International Journal of Molecular Sciences·Ioannis-Dimosthenis S AdamakisMichael Moustakas
Jan 19, 2021·Dose-response : a Publication of International Hormesis Society·Darya BabinaPolina Volkova
Dec 19, 2020·Comprehensive Reviews in Food Science and Food Safety·Arturo Duarte-SierraJoseph Arul
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Oct 20, 2020·Current Opinion in Environmental Science & Health·Costas J Saitanis, Evgenios Agathokleous
Jun 18, 2020·Trends in Plant Science·Evgenios AgathokleousEdward J Calabrese
Apr 4, 2021·Plants·Maria-Lavrentia StamelouMichael Moustakas
Jul 2, 2021·Journal of Advanced Research·Antonio Juárez-MaldonadoAdalberto Benavides-Mendoza
Jul 31, 2021·Journal of Hazardous Materials·Meng Shien GohNyuk Ling Ma
Aug 10, 2021·Functional Plant Biology : FPB·Prabha Rai-KalalAnjana Jajoo
Nov 2, 2019·Environmental Science & Technology·Yuchen TongXiangang Hu

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