Results 51 to 60 of about 15,990 (198)

Green Microextraction Techniques for the Determination of Cosmetic Ingredients and Contaminants

Analytica
The rapid growth and diversification of the cosmetic industry have led to increasingly complex formulations containing numerous bioactive ingredients, excipients, and synthetic additives, often delivered through advanced nanostructured systems.
Marianna Ntorkou, Christina Patakidou, Styliani Nisyriou, Constantinos K. Zacharis   +3 more
doaj   +1 more source

Microbiome‐mediated chemical communication in insects: Implications for pest management

Pest Management Science, EarlyView.
Microbiome–semiochemical interactions involve the following processes: direct microbial synthesis, host gene regulation, precursor biotransformation, microbiome modulation and indirect ecological signaling. Abstract Insects rely on semiochemicals to regulate aggregation, mating, foraging, and host selection. This review synthesizes evidence that insect‐
Ioannis Eleftherianos, Wei Zhang, Amr Mohamed, Rasha K. Al‐Akeel, Abeer M. Alkhaibari, Nemat Keyhani, Guy Smagghe   +6 more
wiley   +1 more source

Microextraction of Polycyclic Musks from Surface Water with Deep-Eutectic-Solvent-Coated Membrane Followed by Gas-Chromatography–Mass Spectrometry Analysis

Chemosensors
Deep eutectic solvents (DESs), a novel class of eco-friendly solvents, are attracting considerable attention in extraction techniques. In this study, a hydrophobic DES, created by combining a quaternary ammonium salt and hexanoic acid, was coated onto a ...
Fabiana Terlizzi, José O. Fernandes, Tamara Gonzalez, Mateus H. Petrarca, Leandro dos S. Silva, Rafaela S. Lamarca, Mario H. Gonzalez, Rui Lapa, Sara C. Cunha   +8 more
doaj   +1 more source

Stable flies preferentially oviposit on sites offering conspecific eggs with egg‐derived bacterial semiochemicals

Insect Science, EarlyView.
Stable flies preferentially oviposit on sites offering conspecific eggs with egg‐derived airborne semiochemicals. Egg‐borne bacterial symbionts, and Serratia marcescens in particular, produce odorants which attract gravid female flies and elicit oviposition.
Emmanuel Hung, Anya Gould, Stephanie Zaborniak, Caelen Watson, Regine Gries, Sukhmani Kaur, Kyra Stephens, Augustus Negraeff, Ryan Lam, Alpha Hui, Pantea Zamani, Aryan Monfared, Gerhard Gries   +12 more
wiley   +1 more source

Development of Zeolite Imidazole Framework-Based Adsorbent for Effective Microextraction and Preconcentration of Histamine in Food Samples

Foods
This study is the first to focus on the preconcentration and determination of histamine (HIS) in food samples using zeolite imidazole frameworks (ZIFs) on a solid-phase microextraction (SPME) platform.
Abdullah Khalid Omer, Hossein Tajik, Rahim Molaei, Mehran Moradi   +3 more
doaj   +1 more source

Efficient Low-Cost Procedure for Microextraction of Estrogen from Environmental Water Using Magnetic Ionic Liquids

Molecules, 2020
In this study, three magnetic ionic liquids (MILs) were investigated for extraction of four estrogens, i.e., estrone (E1), estradiol (E2), estriol (E3), and ethinylestradiol (EE2), from environmental water.
Paula Berton, Noureen Siraj, Susmita Das, Sergio de Rooy, Rodolfo G. Wuilloud, Isiah M. Warner   +5 more
doaj   +1 more source

Two Metschnikowia nectar yeast species have similar volatile profiles but elicit differential foraging in bee pollinators

Ecological Entomology, EarlyView.
Yeasts that specialize in flower nectar play an important role in pollination ecology. Metschnikowia reukaufii and Metschnikowia koreensis were the most prevalent nectar yeasts found in our field sites. Bee pollinators exhibited different behavioural responses to nectar yeasts in field experiments. Bees visited more flowers with M.
M. Elizabeth Moore, Lindsey Wilson, Nathan Brandt, Ayako Wada‐Katsumata, Ahmed M. Saveer, Coby Schal, Robert R. Dunn, Rebecca E. Irwin, Caiti Smukowski Heil   +8 more
wiley   +1 more source

Preconcentration and Determination of Lead for Trace Levels in Water and Wastewater Samples by Vortex-Assisted Microextraction Using TPAS as a New Synthetic Complexing Agent with Electrothermal Atomic Absorption Spectroscopy Detection [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2017
A simple and rapid solidified vortex assisted 1-undecanol based liquid-liquid microextraction technique was proposed for preconcentration of trace levels of lead ions.
Hassanali Moradi, Hossein Eshghi, Mahmoud Chamsaz, Abolfazl Darroudi, Fatemeh Dousti, Issa Zakeri Mofrad   +5 more
doaj  

Advanced Techniques for Quantification of N-nitrosodiethanolamine in Cosmetic Products [PDF]

Journal of Mazandaran University of Medical Sciences, 2023
Cosmetics are daily chemical industrial products used for cleaning, health care, and beauty purposes. Sometimes these products are contaminated by heavy metals, unwanted chemicals, and other dangerous substances that can lead to environmental pollution ...
Zahra Valipanah, Abolghasem Rahmani, Pooria Gill, Adele Rafati   +3 more
doaj  

Do aphid endosymbiotic bacteria influence parasitoid searching behaviour through changes in aphid honeydew production?

Ecological Entomology, EarlyView.
Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda, Alexandre Foito, Katharine F. Preedy, Colin J. Alexander, Ankush Prashar, Alison J. Karley   +5 more
wiley   +1 more source