Biotoxicity of TiO₂ Nanoparticles on Raphidocelis subcapitata Microalgae Exemplified by Membrane Deformation

International Journal of Environmental Research and Public Health
Merve Ozkaleli, Ayca Erdem

Abstract

TiO₂ nanoparticles (NPs), which are mainly used in consumer products (mostly cosmetics), have been found to cause ecotoxic effects in the aquatic environment. The green algae Raphidocelis subcapitata, as a representative of primary producers of the freshwater ecosystem, has been frequently used to study the effects of metal oxide NPs. An ecotoxicity study was conducted herein to investigate the effects of TiO₂ NPs on survival and membrane deformation of algal cells. Five different concentrations of nano-TiO₂ particles (1, 10, 50, 100 and 500 mg/L) were prepared in synthetic surface water samples with five different water quality characteristics (pH 6.4-8.4, hardness 10-320 mg CaCO₃/L, ionic strength 0.2-8 mM, and alkalinity 10-245 mg CaCO₃/L). Results showed a significant increase in the hydrodynamic diameter of NPs with respect to both NP concentrations and ionic content of the test system. A soft synthetic freshwater system at pH 7.3 ± 0.2 appeared to provide the most effective water type, with more than 95% algal mortality observed at 50, 100 and 500 mg/L NP concentrations. At high exposure concentrations, increased malondialdehyde formations were observed. Moreover, due to membrane deformation, TEM images correlated the upt...Continue Reading

References

Jun 25, 1998·Environmental Health Perspectives·K A KellyE D Levin
Sep 3, 1999·Applied and Environmental Microbiology·P C ManessW A Jacoby
Apr 12, 2005·Environmental Science & Technology·Megan A FergusonJanet G Hering
Feb 4, 2006·Science·Andre NelNing Li
Oct 3, 2006·Water Research·Laura K AdamsPedro J J Alvarez
Feb 17, 2007·Water Science and Technology : a Journal of the International Association on Water Pollution Research·L K AdamsP J J Alvarez
Apr 26, 2007·Indian Journal of Dermatology, Venereology and Leprology·Balaji D More
Jul 9, 2008·Environmental Science & Technology·Nicole C Mueller, Bernd Nowack
Aug 12, 2008·Environmental Toxicology and Chemistry·Robert J GriffittDavid S Barber
Nov 29, 2008·The Science of the Total Environment·Villem AruojaAnne Kahru
Apr 29, 2009·Toxicology in Vitro : an International Journal Published in Association with BIBRA·Haruhisa KatoShinichi Kinugasa
May 19, 2009·Toxicology Letters·Hanna L KarlssonLennart Möller
Jul 17, 2009·Environmental Science & Technology·Christine Ogilvie RobichaudMark R Wiesner
Dec 17, 2009·Toxicology in Vitro : an International Journal Published in Association with BIBRA·Haruhisa KatoShinichi Kinugasa
Feb 16, 2010·The Science of the Total Environment·Ki Tae KimSang D Kim
Aug 24, 2010·Particle and Fibre Toxicology·Syed K SohaebuddinLiping Tang
Sep 3, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Beng Joo Reginald ThioArturo A Keller
Feb 15, 2011·Journal of Colloid and Interface Science·Philippe LeroyMohamed Bizi
Apr 13, 2011·Ecotoxicology and Environmental Safety·I Mohammed SadiqA Mukherjee
Aug 14, 2012·Ecotoxicology and Environmental Safety·Lanzhou ChenGaohong Wang
May 8, 2013·Nature Nanotechnology·Mohammed Baalousha, Jamie R Lead
Jun 1, 2014·International Journal of Environmental Research and Public Health·Alina Martirosyan, Yves-Jacques Schneider
Sep 23, 2014·Chemical Reviews·Jenny SchneiderDetlef W Bahnemann
Nov 30, 2014·The Science of the Total Environment·Y NurM Baalousha
Feb 5, 2015·International Journal of Environmental Research and Public Health·Sondra S Teske, Corrella S Detweiler
Jul 28, 2015·International Journal of Environmental Research and Public Health·Yuanyuan ZhangMichael Riediker
Oct 31, 2015·International Journal of Environmental Research and Public Health·Agnes G OomenRobert Landsiedel
Dec 4, 2015·International Journal of Environmental Research and Public Health·Peter M J BosAgnes G Oomen
Jun 15, 2016·International Journal of Environmental Research and Public Health·Xiaomin LiWenhong Fan

❮ Previous
Next ❯

Citations

Mar 4, 2020·International Journal of Molecular Sciences·Mingxi JiaXiaoxi Zeng
Aug 14, 2019·Environmental Toxicology and Chemistry·Sam LekamgeDayanthi Nugegoda
Jun 13, 2018·International Journal of Environmental Research and Public Health·Hugh J ByrnePratap C Naha
Mar 29, 2018·International Journal of Environmental Research and Public Health·David M MetzlerChin Pao Huang
Jun 4, 2018·Photosynthesis Research·Akanksha AgarwalArvind M Lali
Jun 6, 2021·The Science of the Total Environment·Vignesh ThiagarajanAmitava Mukherjee
Jun 27, 2021·Bioresource Technology·Longzao LuoBinghua Yan
Jun 14, 2021·Environmental Science and Pollution Research International·Risa HoriuchiNobumitsu Miyanishi
Apr 16, 2020·Applied Catalysis. B, Environmental·Vicente Rodríguez-GonzálezAkira Fujishima
Jul 30, 2019·Environmental Science & Technology·Timothy E ShullJan A Smalle
Dec 19, 2021·The Science of the Total Environment·Vignesh ThiagarajanAmitava Mukherjee

❮ Previous
Next ❯

Methods Mentioned

BETA
transmission electron microscopy
dynamic
X-ray
MDA

Software Mentioned

SigmaPlot

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.