báo cáo khoa học: " Interaction of silver nanoparticles with Tacaribe virus" pot

... HH,Yacaman MJ: Interaction of silver nanoparticles with HIV-1. JofNanobiotech 2005, 3:6.9. Rogers JV, Parkinson CV, Choi YW, Speshock JL, Hussain SM: A PreliminaryAssessment of Silver Nanoparticle ... Speshock et al .: Interaction of silver nanoparticles with Tacaribe virus. Journal of Nanobiotechnology 2010 8:19.Submit your next manuscript to BioMed Centraland take full advantage of: • Convenient ... 8:19http://www.jnanobiotechnology.com/content/8/1/19Page 2 of 9dehydra ted with the addition of successively higher con-centrations of EtOH. After the sample had been dehy-drated with 100% EtOH, a 1:1 mixture of LR whitemedium...

báo cáo khoa học: "Interaction of silver nanoparticles with HIV-1" pdf

... the interaction of silver nanoparticles with viruses. Herein, we present thefirst findings of our investigation, the discovery that silver nanoparticles undergo size-dependent interaction with HIV-1.FindingsCharacterization ... assigned to the out -of- plane dipole resonance of the silver nanoparticles indicat-ing the presence of spherical particles with small diame-ters. In addition, the synthesis of silver nanoparticles ... AbstractThe interaction of nanoparticles with biomolecules and microorganisms is an expanding field of research. Within this field, an area that has been largely unexplored is the interaction of metalnanoparticles...

báo cáo khoa học: "Use of silver nanoparticles increased inhibition of cell-associated HIV-1 infection by neutralizing antibodies developed against HIV-1 envelope proteins" potx

... (126-7) and Silver Nanoparticles. Chronically HIV-1-infected H9 (105cells) wereincubated with serial two-fold dilutions of HIV-1 gp120 Antiserum(PB1) for 5 minutes with or without silver nanoparticles ... minutes with or without silver nanoparticles at 1 mg/mL. Thentreated H9 cells were placed into 96-well plates with indicator cells(U373-MAGI-CXCR4CEM). Assessment of HIV-1 infection was made with ... added with or without silver nanoparticles at 1 mg/mL. Then the mixture was placed into 96-well plates with indicatorcells (U373-MAGI-CXCR4CEM) at a final 0.2-0.5 m.o.i. Assessment of HIV-1...

Báo cáo khoa học: Interaction of gymnemic acid with cyclodextrins analyzed by isothermal titration calorimetry, NMR and dynamic light scattering doc

... correlate with the binding afﬁnity between GA and the receptor.The thermodynamic parameters obtained are in therange of those of other interactions with c-CD [15].The interaction of GA with c-CD ... frequency of 3.1 mM GA in the presence of equimolar concentration of c-CD. Relative frequency of molecule number was shown against the logarithm of molecule diameter. Interaction of gymnemic acid with ... with the interaction of GA and c-CD [21,22]. In addition, theDCpvalue, )0.14 kcalÆmol)1Æ°C)1, is large and negat-ive, which is in the largest range among those of otherinteractions with...

Báo cáo khoa học: Interaction of caspase-3 with the cyclic GMP binding cyclic GMP speciﬁc phosphodiesterase (PDE5a1) potx

... representative results of three experiments. C3 denotescaspase-3.Ó FEBS 2003 Interaction of caspase-3 with PDE5A1 (Eur. J. Biochem. 270) 965 Interaction of caspase-3 with the cyclic GMP binding ... binding of competitive PDE4 inhibitors [36]. Theside chain of this residue may conceivably p-stack with thepurine base of the bound substrate and form hydrophobicinteractions with a number of inhibitors. ... bytreatment of the cells with the caspase-3/7 inhibitor,Ac-DEVD-CHO (added at the time of transfection with caspase-3 plasmid construct). Overexpression of PDE5A1did not inhibit the auto-activation of...

Báo cáo khoa học: Interaction of selenium compounds with zinc ﬁnger proteins involved in DNA repair pdf

... cancer-preventive activities of selenium compoundshave long been discussed, such as the effects of differentdietary levels as a result of geographical variation, thepotential benefits of d ietary supplements, ... thusdemonstrating specific binding of XPA (lane 2, band 2). With increasing concentrations of selenocystine (lanes3–10), the intensity of band 2 decreased. Nevertheless,instead of free oligonucleotide, ... present inone of the major classes of transcription factors and otherso-called zinc finger proteins. Within this study we investi-gated the effect of selenium compounds on the activity of theformamidopyrimidine-DNA...

báo cáo khoa học: "Fabrication of PLGA nanoparticles with a fluidic nanoprecipitation system" pot

... measurements of 100 randomly chosen particles.Xie and Smith Journal of Nanobiotechnology 2010, 8:18http://www.jnanobiotechnology.com/content/8/1/18Page 5 of 7 of the small size distribution of the nanoparticles ... anddiameters of PLGA nanoparticles fabricated at dispersing flow rates of 35 ml/min, 50 ml/min, and 80 ml/min. (B) SEM images and diameters of PLGA fabricated at PLGA concentrations of 10 mg/ml, ... Fabrication of PLGA nanoparticles with a fluidic nanoprecipitation system. Journal of Nanobiotechnology2010 8:18.Submit your next manuscript to BioMed Centraland take full advantage of: • Convenient...

báo cáo khoa học: "PVP-coated silver nanoparticles block the transmission of cell-free and cell-associated HIV-1 in human cervical culture" ppsx

... to produce pure silver as nanoparticles [30-35],which are more efficient against HIV than silver ions(AgSD and AgNO3) [36]. In addition, silver ions, silver nanoparticles and silver nanocrystals ... Mode of antiviral action of silver nanoparticles against HIV-1. J Nanobiotechnology 2010.37. Tian J, Wong KK, Ho CM, Lok CN, Yu WY, Che CM, Chiu JF, Tam PK: Topical delivery of silver nanoparticles ... HH, Yacaman MJ: Interaction of silver nanoparticles with HIV-1. J Nanobiotechnology 2005, 3:6.41. Ayala-Nuñez NV, Lara HH, Ixtepan-Turrent L, Rodriguez-Padilla C: Silver Nanoparticles Toxicity...

Tài liệu Báo cáo khoa học: Interaction of the small heat shock protein with molecular mass 25 kDa (hsp25) with actin doc

... intensity of the band of unhydrolyzed actin was plotted against the time of incubation.Characterization of actin preparation qualityFluorescence parameters were used for estimation of nativity of ... aggregation of partiallyfolded actin.To obtain more detailed information on the interaction of HSP25 with partially unfolded actin, we analyzed theeffect of different quantities of HSP25 on ... parameter A of actin was close to2.4. Increase of the time of heating at 43 °C leading todecrease of parameter A up to 2.2–2.3 was accompanied byfurther decrease of the initial rate of polymerization....

Báo cáo khoa học: Interaction of the general transcription factor TnrA with the PII-like protein GlnK and glutamine synthetase in Bacillus subtilis potx

... basallevels of resonance units (GlnK free surface) withinseconds. To test the effects of various molecules on the interaction of TnrA with GlnK, 40 nm GlnK (trimer)Fig. 1. Coimmunoprecipitation of TnrA, ... equilibrated with 10 column volumes(10 · 0.2 mL) of buffer B, with subsequent washing fourtimes with ﬁve volumes of the same buffer. Proteins wereeluted with buffer E (buffer B supplemented with 250 ... (SPR) of theGlnK–TnrA interaction As a next step, the interaction of TnrA with GlnK wasinvestigated in vitro by BIAcore SPR detection. Forthis analysis, a Strep-tag II-tagged variant of GlnK(GlnK-ST)...

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