RP-HPLC optimization of econea by using artificial neural networks and its antifouling performance on the Turkish coastline

Mert, Nazlı; Topcam, Gamze; Çavaş, Levent

doi:10.1016/j.porgcoat.2013.11.027

Cited by 15 publications

(8 citation statements)

References 37 publications

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“…Tralopyril (4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile) is an emerging AF-biocide marketed as a non-persistent and biodegradable substance. It is considered an ecologically safer alternative to former hazardous biocides used in AFS, such as tributyltin (Thomas and Brooks 2010;Mert et al 2014). It is used to control biofouling by barnacles, hydroids, mussels, oysters and polychaetes and it is the main active substance of the AFS ECONEA ® (Janssen PMP, Belgium).…”

Section: Introductionmentioning

confidence: 99%

LC-MS/MS determination of tralopyril in water samples

et al. 2016

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A targeted analytical method was established to determine tralopyril (4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile) in water. This compound has been recently introduced as a biocide in ship antifouling paints, becoming a potential new environmental contaminant. The method presented here allows for the first time the direct determination of tralopyril in environmental samples without the need of a pre-concentration step. The injected sample is separated by a 30 min HPLC-gradient on a reversed phase column and the compound identified and quantified by negative ion LC-MS/MS. Tralopyril solutions in DMSO, seawater, river Glatt water and E3 medium (used for zebrafish experiments) were analysed to demonstrate the applicability of the method. The method provides good retention time reproducibility and a quantitation limit (LOQ) of 0.025 μg L(-1) for DMSO, seawater and E3 exposure medium and 0.05 μg L(-1) for river Glatt water. Calculated tralopyril half-lives were 6.1 h for seawater, 8.1 h for river Glatt water and 7.4 h for E3 medium at 18 °C.

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Section: Introductionmentioning

confidence: 99%

LC-MS/MS determination of tralopyril in water samples

et al. 2016

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“…AP‐3 includes no copper or copper‐based toxic chemicals. The amount of Econea was adjusted to be 3.4% w/w in our formulation, taking into account previous research . The composition of AP‐3 is given in Table .…”

Section: Methodsmentioning

confidence: 99%

“…According to the manufacturer, it shows broad‐spectrum activity on the well‐known biofoulers . Econea is also defined as a new type of environmentally friendly antifouling compound (an alternative biocide) in various scientific studies . Alternative biocides, termed “booster biocides”, can be added to enhance the efficacy of copper coatings or can be used as the main active ingredient, offering an alternative to traditional coatings based on cuprous oxide.…”

Section: Introductionmentioning

confidence: 99%

Prevention of biofouling on aquaculture nets with eco‐friendly antifouling paint formulation

Şen

Erdoğan

Çavaş

2020

Coloration Technology

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Aquaculture, which is an important part of food supply, is usually carried out in cage nets made of textile materials. Fouling organisms settle on the cage nets over time, close the mesh openings, and cause unwanted weight gain. In order to prevent fouling, aquaculture nets are generally treated with antifouling paints. In this paper, warp knitted cage nets made from various raw materials were treated with three different antifouling paints. Econea was used as a biocide to prepare an eco‐friendly antifouling paint formulation, and two copper‐based commercial antifouling paints were supplied for comparison. Antifouling paint‐treated and untreated net samples were immersed in a marine ecosystem next to an aquaculture zone for 6 months. Settlement of fouling organisms on nets was observed by taking underwater photographs at periodic intervals. Following the field study, changes in the structure of the nets and antifouling performance of the paints were evaluated considering the results of underwater photographs, biomass growth, variation in mass and strength tests. Colour fastness of the antifouling paints to sea water was also measured to learn about biocide release and surface hydrophobicity. The results show that copper‐free eco‐friendly antifouling paint is just as effective against the fouling mechanism for all types of nets as copper‐based commercial antifouling paints. The novel eco‐friendly formulation has promising results, which provides an alternative for producers when considering the selection of raw materials.

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“…An ANN model was studied on biosorption data by using neural network tool-box of MATLAB (2013b version) and the strategy mentioned in Mert, Topcam and Cavas (2014) was followed. ANN structure in the present paper is consisted of a threelayer feed-forward network by using sigmoid linear transfer (purelin) and tangent transfer (tansig) functions.…”

Section: Ann Modelling Of Tetracycline Adsorption By Ptpomentioning

confidence: 99%

Untitled

Donut¹,

Çavaş²

2017

Turk. J. Fish. Aquat. Sci.

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Importance of the artificial intelligence in the chemical processes has been increased in the recent studies. Although biosorption is widely studied topic in chemistry, modelling of biosorption data is based on very old equations. However, use of artificial intelligence in the biosorption based studies can give important clues to researchers. For this purpose, the biosorption of tetracycline by using Posidonia oceanica from the Mediterranean Sea was studied in this study. According to classical evaluation, the data were well in line with pseudo-second order kinetic and Langmuir's isotherm. In the artificial neural network modelling, the best back propagation algorithm, optimum number of hidden neuron and optimum training:validation:testing ratio were found as Bayesian Regulation, 16 and 70:10:20, respectively. In conclusion, P. oceanica based marine waste can be used in the development of high performance biosorbents for environmental pollutants. However, it should not be forgotten that P.oceanica is a threatened species; therefore, only dead leaves accumulated in recreational area should be collected and evaluated based on the permissions of governmental authorities. The results also exhibited that artificial neural network can also be used in the modelling of the biosorption data in which it helps scientists to estimate biosorption ratio correctly under various conditions.

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RP-HPLC optimization of econea by using artificial neural networks and its antifouling performance on the Turkish coastline

Cited by 15 publications

References 37 publications

LC-MS/MS determination of tralopyril in water samples

LC-MS/MS determination of tralopyril in water samples

Prevention of biofouling on aquaculture nets with eco‐friendly antifouling paint formulation

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