scholarly journals DETERMINATION OF ACUTE AND CHRONIC TOXIC EFFECTS OF METHYL PARATHION ON Chalcalburnus tarichi (Pallas, 1811)

2018 ◽  
pp. 35-45
Author(s):  
Ertuğrul Kankaya ◽  
Güler Ünal
Keyword(s):  
Methyl Parathion ◽  
Toxic Effects ◽  
Chalcalburnus Tarichi

Novel Technologıes and Nanotoxıcology of Medıcal Implants

2020 ◽  
Vol 16 ◽  
Author(s):  
Ramazan Akçan ◽  
Halit Canberk Aydogan ◽  
Mahmut Şerif Yıldırım ◽  
Burak Taştekin ◽  
Necdet Sağlam
Keyword(s):  
Human Health ◽  
Human Body ◽  
Diagnostic Procedures ◽  
Toxic Effects ◽  
Medical Implants ◽  
Healthcare Applications ◽  
Detailed Review ◽  
Novel Technologies ◽  
Technological Developments

Background/aim: Use of nanomaterials in the healthcare applications increases in parallel to technological developments. It is frequently utilized in diagnostic procedures, medications and in therapeutic implementations. Nanomaterials take place among key components of medical implants, which might be responsible for certain toxic effects on human health at nano-level. In this review, nanotoxicological effects, toxicity determination of nanobiomaterials used in human body and their effects on human health are discussed. Material and Method: A detailed review of related literature was performed and evaluated as per nanomaterials and medical implants. Results and Conclusion: The nanotoxic effects of the materials applied to human body and the determination of its toxicity are important. Determination of toxicity for each nanomaterial requires a detailed and multifactorial assessment considering the properties of these materials. There are limited studies in the literature regarding the toxic effects of nanomaterials used in medical implants. Although these implants are potentially biocompatible and biodegradable, it is highly important to discuss nanotoxicological characteristics of medical implant.

Mono-6-thio-β-cyclodextrin-functionalized AuNP/two-dimensional TiO2 nanosheet nanocomposite for the electrochemical determination of trace methyl parathion in water

2019 ◽  
Vol 11 (37) ◽  
pp. 4751-4760 ◽  
Author(s):  
Xu-Cheng Fu ◽  
Chao Zhang ◽  
Xuan-Hua Li ◽  
Jian Zhang ◽  
Gan Wei
Keyword(s):  
Electrode Surface ◽  
Methyl Parathion ◽  
Au Nanoparticles ◽  
Electrochemical Determination ◽  
Two Dimensional

In this work, two-dimensional TiO2 nanosheets material composited with Au nanoparticles and mono-6-thio-β-cyclodextrin was prepared on electrode surface (SH-β-CD/AuNPs/TiO2NSs/GCE).

Determination of Phosdrin® Insecticide or Methyl Parathion in Formulations

1961 ◽  
Vol 44 (3) ◽  
pp. 589-591
Author(s):  
T T White ◽  
G G McKinley
Keyword(s):  
Methyl Parathion

Collaborative Study of Confirmative Procedures by Single Sweep Oscillographic Polarography for the Determination of Organophosphorus Pesticide Residues in Nonfatty Foods

1969 ◽  
Vol 52 (4) ◽  
pp. 811-817
Author(s):  
Raymond J Gajan
Keyword(s):  
Pesticide Residues ◽  
Methyl Parathion ◽  
Collaborative Study ◽  
Organophosphorus Pesticide ◽  
Oscillographic Polarography ◽  
Quantitative Results ◽  
Multiple Detection

Abstract Ten laboratories collaboratively studied several single sweep oscillopolarographic methods designed to be used as confirmative procedures for several organophosphorus pesticide residues determined by GLC. Polarographic methods for the detection and determination of parathion, methyl parathion, diazinon, and/or malathion at 0.5 and 2.0 ppm in extracts of apples and lettuce were included in this study. All 10 laboratories successfully detected the organophosphorus pesticide residues and quantitative results were reported by seven laboratories. These results show that the polarographic methods can be used for rapidly confirming results obtained by the multiple detection procedures now in use.

Thin Layer Chromatographic Determination of Methyl Parathion as Paraoxon by Cholinesterase Inhibition

1981 ◽  
Vol 64 (6) ◽  
pp. 1312-1314
Author(s):  
Sana Udaya Bhaskar ◽  
Nanguneri V Nanda Kumar
Keyword(s):  
Thin Layer ◽  
Rapid Method ◽  
Methyl Parathion ◽  
Quantitative Estimation ◽  
Chromatographic Determination ◽  
Acetone Powder ◽  
Cholinesterase Inhibition ◽  
Pig Liver ◽  
Nitrophenyl Phosphate

Abstract A simple, sensitive, and rapid method is described for the quantitative estimation of nanogram amounts of methyl parathion (O,O-dimethyl O-p-nitrophenyl phosphorothioate) as methyl paraoxon (O,O-dimethyl O-p-nitrophenyl phosphate) on thin layer chromatograms. Methyl paraoxon is detected by pig liver acetone powder cholinesterase inhibition, using p-nitrobenzenediazoniumfluoroborate as the chromogenic reagent. Commercial pig liver acetone powder is more advantageous than raw liver sources because it is readily available and can be preserved indefinitely. About 0.1 ng methyl parathion can be detected, and amounts from 5 to 50 ng can be quantitatively estimated.

scholarly journals TOXICIDADE AGUDA DO INSETICIDA PARATION METÍLICO E DO BIOPESTICIDA AZADIRACTINA DE FOLHAS DE NEEM (Azadirachta indica) PARA ALEVINO E JUVENIL DE PACU (Piaractus mesopotamicus)

2004 ◽  
Vol 14 ◽  
Author(s):  
CLAUDINEI CRUZ ◽  
JOAQUIM G. MACHADO-NETO ◽  
MANOEL LIMA DE MENEZES
Keyword(s):  
Body Weight ◽  
Acute Toxicity ◽  
Environmental Risk ◽  
Azadirachta Indica ◽  
Methyl Parathion ◽  
Juvenile Fish ◽  
Aquatic Environments ◽  
Piaractus Mesopotamicus ◽  
Neem Leaves

Os objetivos deste trabalho foram calcular a CL (I) 50-96h do inseticida organofosforado paration metílico e do biopesticida azadiractina para alevinos e juvenis de pacu ( P. mesopotamicus). Também pretendeu-se avaliar o efeito do peso corpóreo sobre a toxicidade aguda do paration metílico e do neem para o pacu, bem como classificar o risco ambiental do uso de paration metílico e do neem para o controle de parasitas e patógenos de pacu. Foram realizados dois experimentos, em condições laboratoriais, para a determinação da concentração letal (CL (I) 50-96h). A CL (I) 50-96h calculada do paration metílico foi de 3,97 mg/L para os alevinos e de 9,89 mg/L para os juvenis. Para a azadiractina foi de 1,20 mg/L para os alevinos e de 1,18 mg/L para os juvenis. As concentrações de 1,0 mg/L de paration metílico para os alevinos e de 7,5 mg/L para os juvenis e as de 0,29 e 0,59 mg/L de azadiractina não provocaram mortalidade nos animais expostos e podem ser utilizadas como referência em estudos de controle de parasitas em pacu . O paration metílico foi menos tóxico para os alevinos e para os juvenis de pacu do que a azadiractina, indicando a necessidade de cuidados com a utilização de extratos aquosos de neem no ambiente aquático. ACUTE TOXICITY OF THE INSECTICIDE METHYL PARATHION AND OF THE BIOPESTICIDE AZADIRACHTIN FROM NEEM LEAVES (Azadirachta indica) TO ALEVINE AND JUVENILE PACU (Piaractus mesopotamicus) Abstract The objectives of the present study were: to calculate the lethal concentration LC (I) 50-96 h of methyl parathion and of the biopesticide azadirachtin to alevine and juvenile pacu ( P. mesopotamicus). Also to determine the effect of body weight on acute toxicity of methyl parathion and of neem for pacu, as well as to classify the environmental risk of the methyl parathion and neem uses for the control of pacu parasites and pathogens. Two experiments were performed under laboratory conditions for the determination of the LC (I) 50-96 h. The LC (I) 50-96 h of methyl parathion was 3.97 mg/L for alevine and 9.89 mg/L for juvenile fish. The LC (I) 50-96 h of azadirachtin was 1.20 mg/L for alevine and 1.18 mg/L for juvenile pacu. Concentrations of 1.0 and 7.5 mg/L of methyl parathion and of 0.29 and 0.59 mg/L of azadirachtin for alevine and juvenile pacu, respectively, did not cause mortality in the exposed animals and can be used as references in studies on the control of parasites in pacu. Methyl parathion was less toxic to alevine and juvenile pacu than azadirachtin, indicating the need for careful utilization of aqueous neem extracts in aquatic environments.

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