Inactivation of gram negative bacteria by low pressure RF remote plasma excited in n2 o2 mixture and SF6 gases

Inactivation of Giardia lamblia cysts by UV irradiation in real field waters

... we determined the kinetics and extent of inactivation of G. lamblia cysts by several doses of both LP and medium pressure (MP) UV in buffered and real field waters in order to determine the ... performed. The inactivation of G. lamblia cysts by LP UV was very rapid in both PBS and the filtered water and more than 4 log10 inactivation was achieved within a UV dose of 1 mJ/cm2 in ... suspending media. Also, it appears that the extent and kinetics of inactivation of G. lamblia cysts by LP UV in both media were relatively similar to each other. Meanwhile, the inactivation of...

Báo cáo khoa học: Inactivation of annexin II tetramer by S-nitrosoglutathione pot

... changes in uence the GSNO inhibition of the activity of annexin II. AIIt (5 lg)waspreincubatedin50lLofbuffer containing 1 mMCa2+for 30 min to induceprotein conformational changes. The mixture ... of GSNO on the binding of AIIt to membraneAs the binding of AIIt to membrane would be theﬁrst step of AIIt-mediated membrane fusion, we alsoinvestigated whether GSNO inhibits the binding of ... (cNOS),which is stimulated by agents that increase intracellularCa2+. Another is a Ca2+-independent and inducible form(iNOS), which is induced by cytokines and/ or endotoxins and is transcriptionally...

Báo cáo khoa học: Sub-zero temperature inactivation of carboxypeptidase Y under high hydrostatic pressure pot

... [26] and other [27] studies have demonstrated the phenomenon of pressure- induced cold inactivation of CPY. In this study,detailed molecular events in the pressure- induced cold inactivation of ... inactivation is achieved at guanidine HClconcentration of 1Mor above.Effect of SDS upon cold inactivation of CPY under high pressure CPY was incubated at )10 °C for 30 min under 400 MPa in ... effectagainst cold inactivation. The effects were linearly increasedup to 20% (about 2M) for glycerol and 1.0Mfor sucrose(Fig. 6).Effect of inorganic salt and cations upon cold inactivation of...

Báo cáo khoa học: Inactivation of tyrosine phenol-lyase by Pictet–Spengler reaction and alleviation by T15A mutation on intertwined N-terminal arm docx

... molecular interactionsincluding hydrogen bond networks in vicinity of Thr15 on intertwined N-terminal arm.H-bond information was extracted fromentry code 1TPL of Protein Data Bank.Table 1. Kinetic ... structural studies of Proteus vulgaris TNA have revealed an intimatecorrelation between cofactor binding and the interfacialH-bonds formed on the subunit interface [17]. In this study, a random mutagenesis ... tetrahydroisoquinolines in the urine of patientsafter the oral administration of l-DOPA [8,9]. The for-mation of l-DOPA-PLP cyclic adducts has also beendetected in the inactivation of l-DOPA decarboxylaseby...

Báo cáo khoa học: Disorder–order transition of k CII promoted by low concentrations of guanidine hydrochloride suggests a stable core and a ﬂexible C-terminus doc

... structure of this protein. This effect ismanifest in an increase in molar ellipticity, an enhancement of intrinsic tryptophan fluorescence intensity and a reduction in ANS binding. At low concentrations ... twophenylalanine residues in the CII protein and tyrosine isabsent. Interestingly, all the three tryptophans as well as one of the phenylalanines are located in the middle of the97-residue peptide chain, ... (bovine serum albumin, oval-bumin, trypsin inhibitor and RNase A) against log10(molecular mass).The linear fit is also shown along with the equation. The positions of CII in presence and in...

morphology control of zno bilayer structure by low-temperature

... prepared by dip-coating an FTOsubstrate in a solution of ehylene glycol monomethyl ether with1:1 M ratio of 0.375 M zinc acetate and ethanolamine, and annealing at 550 1C for 90 min. The nanostructures ... fabricated by controlling the ammonia concentration in the initial hydrothermalsolution and the immersing ways. The shape evolution of bilayer structure consisting of nanodendritelayer on the top and ... [6] and nanosheets [7] have been prepared by hydrothermal processes,allowing for low cost and readying extension to large scalefabrication. Previously, ZnO nanorods array could be obtained by tuning...

Báo cáo khoa học: Insights into the activation of brain serine racemase by the multi-PDZ domain glutamate receptor interacting protein, divalent cations and ATP ppt

... GAP1 and GAP2 (Fig. 2A). Binding of GRIP to SR occursthrough the direct interaction of the PDZ6 domain of GRIP and the ﬁnal four amino acids of SR [12].We performed the recombinant expression in ... coordinated. The cation binding site is formed by two carboxylate-containing residues (Glu208, Asp214 in SpSR and Glu203, Asp209 in TtTD), a main chaincarbonyl oxygen (Gly212 in SpSR and Ala207 in TtTD) ... Carboxylate-containing residues and carbonyl oxy-gens involved in cation binding are shown as sticks. The ﬁgure wasgenerated withPYMOL [32]. Positioning of the Ca2+, ATP and PDZ6domain binding sites in...

Low- or Medium-pressure UV Lamp Inactivation of Microcystis aeruginosa

... photoreactivation and photosynthesis. During incubation, profiles of the number of existing cells and UV-induced DNA damage were determined for each sample. The growth of Microcystis aeruginosa was inhibited ... effect of UV-radiation on the inactivation of algae; (ii) to study the level of photoreactivation by directly investigating the number of DNA damage, and (iii) to study the contribution of DNA ... reaction was stopped by the addition of an alkaline loading dye preparation containing following ingredients as a final concentration (100 mM NaOH, 1 mM EDTA, 2.5% Ficoll, and 0.05% bromocresol...

High-intensity Low-pressure Electrodeless Mercury-Argon Lamp for UV Disinfection of Wastewater

... resulting from the electrode life. The wall temperature of the lamp increases due to the subsequent increase in the input power, thereby increasing the vapor pressure of mercury. Due to the increase ... obtained by controlling the plasma condition of an electrodeless mercury-argon lamp with a RF (13.56MHz) power supply. Lighting principal of electrodeless UV lamp Lighting principle of electrodeless ... disinfection performance is unaffected even when a flow rate changes. In particular, the problem of charge in disinfection performance due to divagation at a small flow Journal of Water and...

Inactivation of microorganisms in untreated water by a continuous flow system with supercritical CO2 bubbling

... 2007a). In this study, we aim to determine the effects of the CO2/sample flow rate and exposure time in the SC-CO2 treatment on the inactivation of coliform and total bacteria in untreated ... continuous flow treatment with SC-CO2 bubbling. Measurement of surviving bacteria The coliform and total bacterial counts in the untreated water were determined using the method of Japan ... was 10 MPa, sample flow rates were 2.5, 5.0 and 15 ml/min, CO2 flow rates were 4.0, 6.0, 8.0 and 10 g/min and exposure times were 13, 40 and 80 min. Journal of Water and Environment Technology,...

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