Levente Pap

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L-cysteine derivatives induce and modulate the optical activity of achiral cadmium selenide (CdSe) and cadmium sulfide (CdS) quantum dots (QDs). Remarkably, N-acetyl-L-cysteine-CdSe and L-homocysteine-CdSe as well as N-acetyl-L-cysteine-CdS and L-cysteine-CdS showed "mirror-image" circular dichroism (CD) spectra regardless of the diameter of the QDs. This(More)
Methyl-chrysanthemate is one of the intermediates of pyrethroid type insecticides. The acute toxicity of the test item was investigated in rats after single oral, dermal and inhalation applications. The irritation effect was determined by Draize method. Buehler method was applied to evaluate the sensitization potential of the test item. The mutagenic effect(More)
The results of the environmental toxicological investigations and their results of a new hungarian acaricide molecule (SZI-121) developed by the CHINOIN were summarized. The toxicological effects of the test item on different ecotoxicological test systems were investigated in the following tests: Bacterium, alga, and plant growth inhibition tests, acute(More)
The morphology of the lungs and heart was analysed in 824 newborn infants with normal cardiorespiratory adaptation. Under normal conditions, the air content of the lungs became satisfactory in the first 6--12 hours and normal in all cases after 24 hours. The values for the transverse diameter of the chest and heart were brought into correlation with birth(More)
Are plants generally less sensitive to toxicity than aquatic animals as indicated by some authors (1)? The use of phytotoxicity (higher plant) tests as a part of ecotoxicology is relatively underdeveloped. The objective of this study was to compare the results of the OECD Lemna Growth Inhibition Test with other mainly used test systems. Three toxicants were(More)
Ecotoxicological characteristics of a new insecticide synergist, MBB-599 (proposed common name: Verbutin) was investigated. The studies included the determination of the hydrolysis, the biodegradability, the adsorption and desorption characteristics in soil and the effects on living systems (bacterium, alga, Daphnia, and fish) as well.