نتایج جستجو برای: sonication condition
تعداد نتایج: 317928 فیلتر نتایج به سال:
Hydrogen sulphide (H2S) is an endogenous gaseous signalling molecule observing cardioprotective qualities in various experimental models. However, its therapeutic application limited due to rapid release vivo and potential toxicity. Controlled-release nanoparticles (NPs), such as polylactic-co-glycolic acid (PLGA) NPs entrapping H2S compounds may address these issues. PLGA NPs’ encapsulating so...
L-Asparaginase has remarkable properties which make it useful in dual pharmaceutical and food industries.In this study, simple and advantageous method has been validated for rapid and precise determination of intracellular L-Asparaginasein bacterial species. A suspension of bacterial cells was used instead ofcell extract and incubated by substrate (asparagine) after simple wash and centrifugati...
Introduction: Cerium oxide nanoparticles (CONPs) are used as radiation protection agent in the in-vivo and in-vitro studies. The distribution stability of nano-suspension is one of the important factors during the studies. The aim of this study is optimization of condition for CONPs dispersion with sodium dodecyl sulfate (SDS-anionic surfactant) and tween 20 (nonionic surfactan...
Various washing protocols have been assessed for efficacy using Agilent LC/MS and GC/MS instrumentation to measure pesticide residues in tomatoes and other produce. Washing procedures in water and various solutions, with and without sonication, were evaluated in the laboratory. In general, the effect of sonication depended on the washing treatment and on the pesticide. A separate experiment mea...
Sonicated unilamellar lipid vesicles, consisting of egg lecithin, stearylamine, and cholesterol in 7:2:1 molar ratios, promoted the aggregation of tobacco (Nicotiana glutinosa) protoplasts with the aid of mono- or divalent cations.A reaction mixture containing liposomes (0.4 micromoles lipid per milliliter), 50 millimolar CaCl(2), 0.5 molar mannitol, and 5 x 10(5) protoplasts per milliliter res...
The ultrasound-induced cleavage of covalent and non-covalent bonds to activate drugs (sonopharmacology) is a promising concept gain control over the action active pharmaceutical ingredients by an external trigger. Previously, linear polymer architectures bearing drug payloads were exploited for release using principles mechanochemistry. In this work, carrier design altered topology improve ultr...
Co-cultivation and effective downstream processing of microalgae oleaginous yeast are potential strategies to enhance lipid yield. The findings this work suggest that each cultivable partner should be screened optimized for the best mutualistic co-cultures. In case, T. pullulans was found most culture with S. obliquus, C. sorokiniana, protothecoides along additional cell disruption techniques. ...
BACKGROUND Microalgae can synthesize starch with productivity higher than conventional terrestrial crops, without the need for arable land. However, little is known about processes to extract from microalgae. Here, a biorefinery process described including microalgal cell disruption followed by extraction of and pigments aqueous two-phase system (ATPS) using choline chloride polypropylene glyco...
existence of 2-methylpropane-2-thiol as an organosulfur and odorant compound in the soil could causes environmental problem and social dissatisfaction. in this study, remediation of this type of thiol using ultrasound is investigated. central composite design (ccd) based on response surface model (rsm) was used to obtain effects of the main factor (power, sonication time and amount of water) an...
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