A review of the effects of metallic nanoparticles on fish

Many important discoveries have been made in the field of nanotechnology in the last 40 years. Since then, nanoparticles became nearly ubiquitous. With their spreading use, safety concerns have warranted extensive research of nanotoxicity. This paper offers information about the occurrence, transport, and behaviour of metallic nanoparticles in the aquatic environment. It further summarizes details about parameters that dictate the toxicity of nanoparticles and discusses the general/common mechanisms of their toxicity. This review also focuses on fish exposure to nanoparticles, including the possibility of trophic transport through the food chain. Information on some of the most frequently used metallic nanoparticles, such as silver, gold, and titanium dioxide, is further elaborated on.

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Titanium dioxide photocatalysed degradation of organophosphate in a system simulating the natural aquatic environment

Environmental Technology ◽

10.1080/09593339309385288 ◽

1993 ◽

Vol 14 (3) ◽

pp. 265-269 ◽

Cited By ~ 6

Author(s):

Sze To Hung ◽

Mark K.S. Mak

Keyword(s):

Titanium Dioxide ◽

Aquatic Environment

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Comparison of platinum photodeposition processes on two types of titanium dioxide photocatalysts

Physical Chemistry Chemical Physics ◽

10.1039/c9cp06988g ◽

2020 ◽

Vol 22 (16) ◽

pp. 8730-8738 ◽

Cited By ~ 1

Author(s):

Muneaki Yamamoto ◽

Yasuhiro Minoura ◽

Masato Akatsuka ◽

Satoshi Ogawa ◽

Shinya Yagi ◽

...

Keyword(s):

Titanium Dioxide ◽

Metallic Nanoparticles ◽

Metal Precursors

The photodeposition method is useful for the preparation of metal-loaded photocatalysts, by which the metal precursors are adsorbed on the photocatalyst surface and reduced by photoexcited electrons to typically form metallic nanoparticles.

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Evaluation of Titanium Dioxide as a Binding Phase for the Passive Sampling of Glyphosate and Aminomethyl Phosphonic Acid in an Aquatic Environment

Analytical Chemistry ◽

10.1021/acs.analchem.5b00194 ◽

2015 ◽

Vol 87 (12) ◽

pp. 6004-6009 ◽

Cited By ~ 25

Author(s):

Vincent Fauvelle ◽

Tran-Thi Nhu-Trang ◽

Thibaut Feret ◽

Karine Madarassou ◽

Jérôme Randon ◽

...

Keyword(s):

Titanium Dioxide ◽

Phosphonic Acid ◽

Aquatic Environment ◽

Passive Sampling ◽

Binding Phase ◽

Aminomethyl Phosphonic Acid

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Unionacean Clams as Indicators of Persistent Substances in Fresh Water

Water Science & Technology ◽

10.2166/wst.1983.0187 ◽

1983 ◽

Vol 15 (S1) ◽

pp. 37-42

Author(s):

A Forester

Keyword(s):

Fresh Water ◽

Food Chain ◽

Toxic Metals ◽

Aquatic Environment ◽

Extended Period ◽

Coastal Pollution ◽

Biological Availability ◽

Abundance Distribution ◽

Secondary Function ◽

Shield Lakes

Measurement of total or nominal pollutant concentration in the physical compartment of the aquatic environment (water, sediments, etc.) seldom gives a valid indication of the ultimate threat to the ecosystem. An alternative is to use a living organis to reflect the biological availability of the contaminant and to integrate its changing levels in the environment by monitoring over an extended period. Pelecypods have been used as indicators of marine coastal pollution, but have received relatively little attention in fresh waters. The large, unionacean clams and mussels show a number of features which suggest that they would be useful as monitors of biological availability of freshwater pollutants: ability to accumulate a wide variety of contaminants; mode of feeding; position on food chain; longevity; sedentary habits; facility with which their age can be determined; abundance; distribution; size and hardiness. The current programme is concerned with: (1) evaluating unionaceans as potential indicators and the factors that affect pollutant uptake; (2) development of the methodology for monitoring; and (3) characterisation of the pollutant status of Ontario shield lakes which are subject to direct inputs of toxic metals with the precipitation and their mobilisation through the ecosystem as a secondary function of environmental acidification.

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Titanium Dioxide Nanoparticles – Prospects and Applications in Medicine

10.20944/preprints202002.0271.v1 ◽

2020 ◽

Author(s):

Daniel Ziental ◽

Beata Czarczynska-Goslinska ◽

Dariusz T. Mlynarczyk ◽

Arleta Glowacka-Sobotta ◽

Beata Stanisz ◽

...

Keyword(s):

Titanium Dioxide ◽

Metallic Nanoparticles ◽

Malignant Tumors ◽

Uv Light ◽

Titanium Dioxide Nanoparticles ◽

Aqueous Media ◽

Resistant Bacteria ◽

Antibiotic Resistant ◽

Tio2 Nps ◽

Wide Range

Metallic nanoparticles (NPs), among polymeric NPs, liposomes, micelles, quantum dots, dendrimers, or fullerenes, are becoming more and more important due to their potential use in the novel medical therapies. Titanium dioxide (titanium(IV) oxide, titania, TiO2) is an inorganic compound that owes its recent rise in scientific interest to photoactivity. After the illumination in aqueous media with UV light, TiO2 produces an array of reactive oxygen species (ROS). The capability to produce ROS and thus induce cell death has found application in the photodynamic therapy (PDT) for the treatment of a wide range of maladies, from psoriasis to cancer. Titanium dioxide NPs were studied as photosensitizing agents in the treatment of malignant tumors as well as in photodynamic inactivation of antibiotic-resistant bacteria. Both TiO2 NPs themselves, as well as their composites with other molecules, can be successfully used as photosensitizers in PDT. Moreover, various organic compounds can be grafted on TiO2 NPs, leading to hybrid materials. These nanostructures can reveal increased light absorption allowing their further use in targeted therapy in medicine. In order to improve efficient anticancer therapy, many approaches utilizing titanium dioxide were tested. The most significant studies are discussed in this review.

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Establishing the baseline for using plankton as biosensor

10.1101/795203 ◽

2019 ◽

Cited By ~ 1

Author(s):

Vito P. Pastore ◽

Thomas Zimmermann ◽

Sujoy K. Biswas ◽

Simone Bianco

Keyword(s):

Artificial Intelligence ◽

Food Chain ◽

Aquatic Environment ◽

Morphological Features ◽

Woods Hole Oceanographic Institution ◽

Large Dataset ◽

Environmental Threat ◽

Detection Approach ◽

Basic Set ◽

Plankton Species

ABSTRACTPlankton is at the bottom of the food chain. Microscopic phytoplankton account for about 50% of all photosynthesis on Earth, corresponding to 50 billion tons of carbon each year, or about 125 billion tonnes of sugar[1]. Plankton is also the food for most species of fish, and therefore it represents the backbone of the aquatic environment. Thus, monitoring plankton is paramount to infer potential dangerous changes to the ecosystem. In this work we use a collection of plankton species extracted from a large dataset of images from the Woods Hole Oceanographic Institution (WHOI), to establish a basic set of morphological features for supporting the use of plankton as a biosensor. Using a perturbation detection approach, we show that it is possible to detect deviation from the average space of features for each species of plankton microorganisms, that we propose could be related to environmental threat or perturbations. Such an approach can open the way for the development of an automatic Artificial Intelligence (AI) based system for using plankton as biosensor.

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Metabolic, Bioproductive and Reproductive Effects of Aquatic Exposure to Cadmium in Dish- A Review

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Animal Science and Biotechnologies ◽

10.15835/buasvmcn-asb:12198 ◽

2017 ◽

Vol 74 (1) ◽

pp. 1

Author(s):

Bogdan GEORGESCU ◽

Daniel MIERLITA ◽

Danut STRUTI ◽

Hermina KISS ◽

Anca BOUARU

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Food Security ◽

Natural Resources ◽

Food Chain ◽

Aquatic Environment ◽

Reproductive Effects ◽

Human Food Chain ◽

Growth Development ◽

Cd Exposure

Cadmium (Cd) exposure in fish is the result of aquatic pollution with heavy metals, which is mainly caused byanthropic interventions. Rarely, Cd mobilization from natural resources takes place. Bioaccumulation in tissues and organs is a property of this heavy metal, to generate various pathological effects and major risks due to bio-propagation within the human food chain. Wehereby reviewed the main circumstances and levels of exposure to Cd in the aquatic environment, and effects on growth, development and reproduction induced by its bioaccumulation in fish, as well as the possible ramifications for food security in humans.

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