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Comparative study on toxicity of ZnO and TiO2 nanoparticles on Artemia salina: effect of pre-UV-A and visible light irradiation.
Environ Sci Pollut Res Int. 2017 Feb; 24(6):5633-5646.ES

Abstract

This study evaluated the toxicity potential of ZnO and TiO2 nanoparticles under pre-UV-A irradiation and visible light condition on Artemia salina. The nanoparticle suspension was prepared in seawater medium and exposed under pre-UV-A (0.23 mW/cm2) and visible light (0.18 mW/cm2) conditions. The aggregation profiles of both nanoparticles (NPs) and dissolution of ZnO NPs under both irradiation conditions at various kinetic intervals (1, 24, 48 h) were studied. The 48-h LC50 values were found to be 27.62 and 71.63 mg/L for ZnO NPs and 117 and 120.9 mg/L for TiO2 NPs under pre-UV-A and visible light conditions. ZnO NPs were found to be more toxic to A. salina as compared to TiO2 NPs. The enhanced toxicity was observed under pre-UV-A-irradiated ZnO NPs, signifying its phototoxicity. Accumulation of ZnO and TiO2 NPs into A. salina depends on the concentration of particles and type irradiations. Elimination of accumulated nanoparticles was also evident under both irradiation conditions. Other than ZnO NPs, the dissolved Zn2+ also had a significant effect on toxicity and accumulation in A. salina. Increased catalase (CAT) activity in A. salina indicates the generation of oxidative stress due to NP interaction. Thus, this study provides an understanding of the toxicity of photoreactive ZnO and TiO2 NPs as related to the effects of pre-UV-A and visible light irradiation.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Bhuvaneshwari M
Centre for Nanobiotechnology, VIT University, Vellore, 632014, India.
Sagar B
Centre for Nanobiotechnology, VIT University, Vellore, 632014, India.
Doshi S
Centre for Nanobiotechnology, VIT University, Vellore, 632014, India.
Chandrasekaran N
Centre for Nanobiotechnology, VIT University, Vellore, 632014, India.
Mukherjee A
Centre for Nanobiotechnology, VIT University, Vellore, 632014, India. amit.mookerjea@gmail.com.

MeSH

AnimalsArtemiaCatalaseLightNanoparticlesOxidative StressSeawaterTitaniumUltraviolet RaysWater Pollutants, ChemicalZinc Oxide

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28039626

Citation

Bhuvaneshwari, M, et al. "Comparative Study On Toxicity of ZnO and TiO2 Nanoparticles On Artemia Salina: Effect of pre-UV-A and Visible Light Irradiation." Environmental Science and Pollution Research International, vol. 24, no. 6, 2017, pp. 5633-5646.
Bhuvaneshwari M, Sagar B, Doshi S, et al. Comparative study on toxicity of ZnO and TiO2 nanoparticles on Artemia salina: effect of pre-UV-A and visible light irradiation. Environ Sci Pollut Res Int. 2017;24(6):5633-5646.
Bhuvaneshwari, M., Sagar, B., Doshi, S., Chandrasekaran, N., & Mukherjee, A. (2017). Comparative study on toxicity of ZnO and TiO2 nanoparticles on Artemia salina: effect of pre-UV-A and visible light irradiation. Environmental Science and Pollution Research International, 24(6), 5633-5646. https://doi.org/10.1007/s11356-016-8328-z
Bhuvaneshwari M, et al. Comparative Study On Toxicity of ZnO and TiO2 Nanoparticles On Artemia Salina: Effect of pre-UV-A and Visible Light Irradiation. Environ Sci Pollut Res Int. 2017;24(6):5633-5646. PubMed PMID: 28039626.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparative study on toxicity of ZnO and TiO2 nanoparticles on Artemia salina: effect of pre-UV-A and visible light irradiation. AU - Bhuvaneshwari,M, AU - Sagar,Bhawana, AU - Doshi,Siddharth, AU - Chandrasekaran,N, AU - Mukherjee,Amitava, Y1 - 2016/12/30/ PY - 2016/10/17/received PY - 2016/12/21/accepted PY - 2017/1/1/pubmed PY - 2017/8/8/medline PY - 2017/1/1/entrez KW - Artemia salina KW - Pre-UV-A KW - Seawater KW - TiO2 nanoparticles KW - ZnO nanoparticles SP - 5633 EP - 5646 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 24 IS - 6 N2 - This study evaluated the toxicity potential of ZnO and TiO2 nanoparticles under pre-UV-A irradiation and visible light condition on Artemia salina. The nanoparticle suspension was prepared in seawater medium and exposed under pre-UV-A (0.23 mW/cm2) and visible light (0.18 mW/cm2) conditions. The aggregation profiles of both nanoparticles (NPs) and dissolution of ZnO NPs under both irradiation conditions at various kinetic intervals (1, 24, 48 h) were studied. The 48-h LC50 values were found to be 27.62 and 71.63 mg/L for ZnO NPs and 117 and 120.9 mg/L for TiO2 NPs under pre-UV-A and visible light conditions. ZnO NPs were found to be more toxic to A. salina as compared to TiO2 NPs. The enhanced toxicity was observed under pre-UV-A-irradiated ZnO NPs, signifying its phototoxicity. Accumulation of ZnO and TiO2 NPs into A. salina depends on the concentration of particles and type irradiations. Elimination of accumulated nanoparticles was also evident under both irradiation conditions. Other than ZnO NPs, the dissolved Zn2+ also had a significant effect on toxicity and accumulation in A. salina. Increased catalase (CAT) activity in A. salina indicates the generation of oxidative stress due to NP interaction. Thus, this study provides an understanding of the toxicity of photoreactive ZnO and TiO2 NPs as related to the effects of pre-UV-A and visible light irradiation. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/28039626/Comparative_study_on_toxicity_of_ZnO_and_TiO2_nanoparticles_on_Artemia_salina:_effect_of_pre_UV_A_and_visible_light_irradiation_ DB - PRIME DP - Unbound Medicine ER -