Now showing items 1-10 of 369
A BIOASSAY METHOD FOR DETECTING HERBICIDE CONCENTRATIONS IN WATERA BIOASSAY METHOD FOR DETECTING HERBICIDE CONCENTRATIONS IN WATER
(University of Puerto Rico Mayagüez Campus Agricultural Experiment Station, 1979)
Linking in situ bioassays and dynamics of macroinvertebrates to assess agricultural contamination in streams of the Argentine Pampa
The two local crustacean species Hyalella curvispina and Macrobrachium borelli were chosen for assessment of agricultural contamination in two streams (Horqueta and Maguire) in the Argentine pampa. In parallel with in situ ...
Susceptibility of Chordodes nobilii (Gordiida, Nematomorpha) to three pesticides: Influence of the water used for dilution on endpoints in an ecotoxicity bioassay
The increased use of pesticides during recent years necessitates a reevaluation of the effect of those compounds by extending the range of nontarget species commonly used in risk assessment. In the present work, we thus ...
Resistance to deltamethrin in Triatoma infestans: microgeographical distribution, validation of a rapid detection bioassay and evaluation of a fumigant canister as control alternative strategy
(Cambridge University Press, 2020-10)
Triatoma infestans (Klug) (Hemiptera: Reduviidae) is the main vector of Chagas disease in the Southern Cone of America and resistance to pyrethroid insecticides has been detected in several areas from its geographical ...
A new P. putida instrumental toxicity bioassay
Here, we present a new toxicity bioassay (CO2-TOX), able to detect toxic or inhibitory compounds in water samples, based on the quantification of Pseudomonas putida KT2440 CO2 production. The metabolically produced CO2 was ...
Optimization and Characterization of Essential oil Nanoemulsions Using Ultrasound for New Ecofriendly Insecticides
(American Chemical Society, 2020-05-19)
This study developed and evaluated the toxicological effects of new stable nanoemulsions (NEs) of peppermint essential oils (EO) and palmarosa EO + linalyl acetate using ultrasound cavitation. Moreover, the study analyzed ...
Glyphosate as an acetylcholinesterase inhibitor in Cnesterodon decemmaculatus
The toxic effect of sublethal concentrations (1, 17.5 and 35 mg L -1) of pure glyphosate was evaluated on acetylcholinesterase (AChE) activity in the fish species, Cnesterodon decemmaculatus. Acute bioassays (96 h) under ...
Sorting the main bottlenecks to use paper-based microbial fuel cells as convenient and practical analytical devices for environmental toxicity testing
Three of the primary bottlenecks, which should be consider for practical, point-of-need use of microbial fuel cell (MFC) analytical devices were surpassed in this work: i) the use of a diffusive barrier, hence, an electrogenic ...
Monitoring the ecotoxicity of γ-Al2O3 and Ni/γ-Al 2 O 3 nanomaterials by means of a battery of bioassays
(Academic Press Inc Elsevier Science, 2017-10)
The increasing application of nanoparticles (NPs) to a variety of new technologies has become a matter ofconcern due to the potential toxicity of these materials. Many questions about the fate of NPs in the environmentand ...
Novel fluorinated curcuminoids and their pyrazole and isoxazole derivatives: Synthesis, structural studies, Computational/Docking and in-vitro bioassay
(Elsevier Science Sa, 2018-02)
In a continuing search for “curcuminoid (CUR) inspired” compounds with potential antitumor activity, a series of 21 new CUR-BF2 adducts and CURs bearing fluorine, trifluoromethylthio, trifluoromethoxy, and trifluoromethyl ...