Results 41 to 50 of about 1,102 (176)

Identification of glycoproteins in mucous cells of the gill epithelium of Colossoma macropomum after exposure to organophosphate

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
The use of organophosphates has been recommended for fish, especially the trichlorfon to control parasites. Colossoma macropomum were exposed to trichlorfon during 96 hours and of total number of mucous cells decreased in the number of cells when ...
S.E. Moron, P.R. Matos, A.T. Ramos, M.G.T. Gomes   +3 more
doaj   +1 more source

Preparation of a Sensor Based on Biomass Porous Carbon/Covalent-Organic Frame Composites for Pesticide Residues Detection

Frontiers in Chemistry, 2020
In this work, a covalent-organic framework with high carbon and nitrogen content microstructures (named COF-LZU1), assisted by 3D nitrogen-containing kenaf stem composites (represented as COF-LZU1/3D-KSCs), was constructed.
Yali Liu, Mingyue Zhou, Chen Jin, Jinxiang Zeng, Chao Huang, Qiuye Song, Yonggui Song   +6 more
doaj   +1 more source

Progress and Prospects of Rare Metal‐Based Electrochemiluminescence Sensors for Detection of Water Environmental Pollutants

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Water pollution is becoming increasingly severe, posing a serious hazard to human health and ecological security. Therefore, it is necessary to develop rapid, sensitive, and universal analytical methods to detect residual pollutants in actual water.
Yi Xing, Ru Wu, Min Zhang, Faliang Cheng, Jun‐Jie Zhu   +4 more
wiley   +1 more source

Assessment of fall‐back MRLs for revoked CXLs previously implemented in the EU legislation

EFSA Journal, Volume 24, Issue 4, April 2026.
Abstract In the 56th meeting of the Codex Committee on Pesticide Residues (CCPR meeting) held in September 2025 and the subsequent 48th meeting of the Codex Alimentarius Commission (CAC) (November 2025), 352 Codex MRLs (CXLs) for 30 active substances (a.s.) were revoked.
European Food Safety Authority (EFSA)
wiley   +1 more source

Development of a quantum dot-labelled biomimetic fluorescence immunoassay for the simultaneous determination of three organophosphorus pesticide residues in agricultural products

Food and Agricultural Immunology, 2019
In this study, we used 2-(diethexyphosphoryl)acetic acid as a common template molecule and Fe3O4@SiO2 as support material to prepare a superparamagnetic core/shell molecular imprinting polymer (MIP), Fe3O4@SiO2@MIP, which has multiple recognition sites ...
Mingdi Jiang, Jingbo He, Junjie Gong, Huiju Gao, Zhixiang Xu   +4 more
doaj   +1 more source

Mixed‐Oxide Nanostructure‐Based Electrochemical Sensors for Environmental Pollutants

Analysis &Sensing, Volume 6, Issue 2, March 2026.
This review discusses the development of mixed‐oxide electrochemical sensors for detecting environmental pollutants, covering various work electrodes, combinations of nanomaterials for enhanced sensing, and real‐world diagnostic applications. Emerging environmental pollutants pose increasing risks to ecosystems and human health, creating a demand for ...
Cavour M. Neto, Camila C. Silva, Carlos W. Mendonça, Daniel Y. Tiba, João H. A. Ferreira, Laura C. Lieb, Octávio P. L. de Souza, Willian V. L. Belino, J. G. Manjunatha, Thiago C. Canevari   +9 more
wiley   +1 more source

The dose-response relationship of trichlorfon neurotoxicity in hens

Ecotoxicology and Environmental Safety, 1979
Abstract Trichlorfon [dimethyl 1-hydroxy-2,2,2-trichloroethyl phosphonate (Dipterex)], an organophosphorus pesticide, has been implicated in producing neuropathy in various species. Adult hens were given oral or subcutaneous doses ranging from 50 to 300 mg/kg.
E J, Olajos, I, Rosenblum, F, Coulston, N, Strominger   +3 more
openaire   +2 more sources

Challenges and opportunities in mitigating sarcoptic mange in wild South American camelids

The Journal of Wildlife Management, Volume 90, Issue 1, January 2026.
Wild South American camelids—vicuña and guanaco—face threats from sarcoptic mange, a contagious skin disease linked to severe population declines. Despite its impact, major gaps remain in understanding disease dynamics. This review summarizes current knowledge, identifies key data and management gaps, and outlines urgent actions for effective ...
Alynn M. Martin, Emiliana Isasi‐Catalá, Marília Salgado‐Caxito, Ana Gallegos, Leonardo Hostos‐Olivera, Paulo Colchao‐Claux, Steve Smith, L. Fabian Beltran‐Saavedra, Catherine Dougnac, Camila Germana, Mariana Montoya, Scott Carver, Paul C. Cross, Christian Walzer   +13 more
wiley   +1 more source

Tropical Pastures and Lamb Health: The Role of Litter and Forage Cultivars in the Dynamics of Gastrointestinal Nematodes Under Continuous Stocking in the Cerrado

Advances in Agriculture, Volume 2026, Issue 1, 2026.
In tropical grazing systems, the interaction between forage structure and microenvironment plays a key role in the epidemiology of gastrointestinal nematodes (GIN) affecting small ruminants. This study evaluated the effect of tropical forage cultivars on GIN infection and related health indicators in lambs during the dry season in the Brazilian Cerrado.
Juliana Caroline Santos Santana, Gelson dos Santos Difante, Vanessa Zirondi Longhini, Alexandre Menezes Dias, Fernando de Almeida Borges, Jéssica Gomes Rodrigues, Francisca Fernanda da Silva Roberto, Gabriela Garcia de Souza, Stefany Thayssiane da Silva, Gabriel de Souza Lombardi da Silva, Roberta de Rossi Oliveira de Souza, Nubia da Silva Soares, Karina Batista   +12 more
wiley   +1 more source

Seletividade fisiológica de inseticidas a Vespidae predadores de Ascia monuste orseis Insecticide physiological selectivity to Vespidae predators of Ascia monuste orseis

Pesquisa Agropecuária Brasileira, 2002
Este trabalho objetivou estudar a seletividade dos inseticidas carbaril, deltametrina, paratiom metílico, permetrina e triclorfom em relação a Ascia monuste orseis (Godart) (Lepidoptera: Pieridae) e a seus predadores Brachygastra lecheguana Latreille e ...
André Luiz Barreto Crespo, Marcelo Coutinho Picanço, Leandro Bacci, Eliseu José Guedes Pereira, Alfredo Henrique Rocha Gonring   +4 more
doaj   +1 more source