• preparation and characterization of magnetoliposomes

... membrane, and the selectivity (the ratio of proton conductivity and methanol permeability) of the composite membrane is almost 20 times than that of Nafion-117 Copyright © 2010 International Energy and ... that the polymerization of styrene and the blending of PS and SPS polymers have affected the surface structure of the PVDF membrane obviously The cross-section morphologies of the PVDF membrane, ... polymerization and phase inversion, and all of the other reagents were analytical grade 2.2 Preparation of the PVDF-based composite membrane The PVDF powders were basified firstly, and the double bond was...

Ngày tải lên: 05/09/2013, 16:11

... lengths and angles) of O, W and Ti are expected but, not surprisingly, are too small to be detectable as shifts of W4fand Ti2pcore level BEs and cannot be resolved in STM images The appearance of ... nm2 and metallic W. Fig 2 Linear correlation of W NVV /Ti LMM AES ratio and W 4f intensity with amount of deposited WO 3 , the latter is plotted in units of WO 3 nm2based QCM measurement of mass ... supports makes it difficult to gain control of cluster size in preparing samples, and mass control of deposited species has been limited to soft-landing of gas-phase mass-selected charged species...

Ngày tải lên: 20/03/2014, 13:06

... evolution of bacteria andmoulds, and then very early recruited in the metazo-ans Here we report the expression and purification of recombinant geodin and its thermodynamic and spect-roscopic characterization, ... parameter of thermodynamic stability, are of about 80 kJÆmol)1for human-cS and spherulin 3a, and of 41 and 45 kJÆmol)1for geodin and protein S, respectively The value of 45 kJÆmol)1for protein S is the ... investigated: the soluble fraction (S preparation) and the pelleted fraction, after solubilization and renaturation (see Methods), called IB preparation The S and IB preparations were fract-ionated...

Ngày tải lên: 30/03/2014, 15:20

... manufacturing of carbon/water nanofluids Introduction As industrial and technological products demand higher standards of function and capacity, the problem of heat dissipation from electrical ... SiC, and carbon nanotube nanofluid In general, two-step syntheses are more suitable for the preparation of oxide nanofluids, but are less appropriate for the pre-paration of metallic nanofluids ... addition of a surfactant or disper-sant, to disrupt agglomeration and provide dispersion and stabilize the suspension The advantages of two-step syntheses are facile and rapid preparation of large...

Ngày tải lên: 21/06/2014, 04:20

... constant and loss tangent as a function of frequency, (b) tunability as a function of applied electric field, and (c) figure of merit (FOM) as a function of applied electric field for BTS and BLaTS ... dependence of dielectric constant and loss tangent measured at 100 Hz frequency, and (b) Temperature dependence of pyroelectric coefficient (p) and figure of merit (F D) measured at 50 kV/cm and 100 ... solution of perovskite BaTiO3 and BaSnO3 Ba(Ti1-xSnx)O3 can also be considered as partial substitution of Ti by Sn at the B-site due to the same structure of BaTiO3 and BaSnO3 and the similar radii of...

Ngày tải lên: 10/09/2015, 15:48

... 1Preparation and characterization of new magneto-optical crystals for optical communication Zhang Guangyu A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY OF ENGINEERING DEPARTMENT OF ... Tb1.0HoYbBiIG, and HoYbBiIG .102 Figure 73 Comparison of the specific Faraday rotation of HoYbBiIG crystal and HoYbCe0.5BiIG crystal as function of field 103 Figure 74 Comparison of the spectra of Ce0.5HoYbBiIG ... Ce0.5HoYbBiIG and HoYbBiIG crystals 104 Figure 75 Comparison of the stability of FR against temperature of Ce0.5HoYbBiIG and HoYbBiIG crystals 104 Figure 76 Comparison of the transmittance spectra of Ce0.5HoYbBiIG,...

Ngày tải lên: 16/09/2015, 17:12

... RhB degradation after additions of Na2EDTA and BQ indicating small effects of Hþand $O2 ¡species in the photodegrading of MB and RhB, while the additions of CCl4 and IPA were accompanied with remarkably ... wavenumber, A is a constant and Egis the bandgap energy in which n¼ 1/2 for direct bandgap materials and n ¼ 2 for indirect bandgap[62] The bandgap energy values of SnO2/TiO2 nanoparticles calcined ... equal to that of the band gaps of the anatase and the rutile phases of TiO2, respectively [6,37] The PL emission peaks at about 470 nm are possibly Fig 9 Photodegradation of (a) MB and (b) RhB...

Ngày tải lên: 24/09/2020, 04:44

... RhB degradation after additions of Na2EDTA and BQ indicating small effects of Hþand $O2 ¡species in the photodegrading of MB and RhB, while the additions of CCl4 and IPA were accompanied with remarkably ... Egis the bandgap energy in which n¼ 1/2 for direct bandgap materials and n ¼ 2 for indirect bandgap[62] The bandgap energy values of SnO2/TiO2 nanoparticles calcined at 400
, 500
, 600
, and 700
C ... equal to that of the band gaps of the anatase and the rutile phases of TiO2, respectively [6,37] The PL emission peaks at about 470 nm are possibly Fig 9 Photodegradation of (a) MB and (b) RhB...

Ngày tải lên: 02/02/2021, 15:40

... RhB degradation after additions of Na2EDTA and BQ indicating small effects of Hþand $O2 ¡species in the photodegrading of MB and RhB, while the additions of CCl4 and IPA were accompanied with remarkably ... Egis the bandgap energy in which n¼ 1/2 for direct bandgap materials and n ¼ 2 for indirect bandgap[62] The bandgap energy values of SnO2/TiO2 nanoparticles calcined at 400
, 500
, 600
, and 700
C ... equal to that of the band gaps of the anatase and the rutile phases of TiO2, respectively [6,37] The PL emission peaks at about 470 nm are possibly Fig 9 Photodegradation of (a) MB and (b) RhB...

Ngày tải lên: 17/03/2021, 20:20

... processability of the insulated polymers and the electrical and redox properties of PANI.17 The preparation of oriented PANI nanostructures with controlled morphology has been reported previously.18 Yin and ... mixture and the aniline–DBSAH–HCl mixture The EDX spectra of the black polymers show the existence of Cl and I (doped as I− 3) in the structure of polymer synthesized containing aniline and HCl, and ... DBSAH and HCl on the morphology and size of PANI microrods were investigated PANI microparticles were prepared in aqua-acidic media in the presence of DBSAH and H5IO6 Different concentrations of...

Ngày tải lên: 12/01/2022, 23:37

... collapse of the pores of MMT and exfoliation of MMT in the ZnO matrix as a result of the settlement of ZnO interlayer galleries of MMT The results of t-Plot and BJH analysis indicate that the pores of ... through Eqs (12)–(16), which can improve the degradation of pollutant:12 O2+ e → O •− O •− 2 + H+ ↔ HO • Trang 92O •−2HO • H2O2 + O •− 2 → OH • + OH − + O The results discussed in the previous sections ... of the ozone molecules to the aromatic rings and N=N double bond of DR54 The presence of heterogeneous catalyst enhances the decomposition of ozone and consequently increases the generation of...

Ngày tải lên: 13/01/2022, 00:05

... broad bands of MnO-OA at 2920 and 2855 cm–1 are attributed to the asymmetric and symmetrical stretching vibrations of the CH2 bands of oleic acid, respectively A pair of bands in 1550 and 1410 ... due to the polymerization of styrene [33] 3.2 Effect of time, temperature, and amount of catalyst on selectivity of styrene epoxide To fully understand the influence of effective conditions on ... min) and then washed with the mixture of acetone and hexane three times Finally, hydrophilic MnO-CaLs NPs were washed with ethanol and dispersed in ultrapure water 2.3 Characterization of catalysts...

Ngày tải lên: 13/01/2022, 00:30

... the highest Td and Wr and the lowest TG slope When the content of TNPs reaches 3.0 wt%, the slope of the TG curve of 1S-T3 nanocomposite increases and the Td and Wr lower than those of 1S-T2 nanocomposite ... as EVA and PLA begin plasticizing and melting From 4 to 5 min of mixing, the torque of E70 sample remains nearly constant because then EVA and PLA are completely plasticized and melted, and the ... torque value of 1S-T0 sample in comparison to that of E70 sample Scheme 2 Graft of VTMS on EVA chains, and bonding between VTMS-g-EVA and TNPs. Scheme 3 Graft of VTMS on PLA chains, and bonding...

Ngày tải lên: 10/10/2022, 15:46

... total volume of 200 mL and an area of 1.5 cm2 at the joint of the two cells Then, 100.00 mL of an aqueous solution containing Co(II), Cd(II), and Cu(II) ions with identical concentrations of 25 mg ... and CFi and CRi are the corresponding ion concentrations in the feeding and receiving pools, respectively 3 Results and discussion 3.1 Effects of various parameters during the preparation of ... a molar ratio of template ions, functional monomer, and cross-linker of 1:4:50, and a membrane soaking time of 180 s 3.2 Characterization 3.2.1 SEM The surface topographies of Nylon-6, Co(II)-PMMA-IICM16,...

Ngày tải lên: 20/12/2022, 23:14

... coatingoftheBCnanofibrilsbyexcessoftheSFsolution Then,thebestoutcomeobtainedinthisstudywastheonewith 50%ofSFand50%ofBCcontent.Theresultofthisblendof50%of eachbiomaterialresultsinacompositethatisintendedtopreserve BCandSFproperties ... regenerationandin termsofporosityresultsinarangeof100–155and90␮mwere identified Oneobviouschallengeoftissueengineeringisthedesignand fabrication of the 3-D polymer scaffolds composed of refined nanofibrilswithhierarchicalporestructureincludinglargepores ... 2gL−1, heptahydrated magne-sium,sulphate0.8gL−1andethanol20gL−1.Afterthreedaysof incubationhydratedBCpelliclesof3mmofthicknesscontaining upto99%ofwaterand1%ofcellulosewereobtained.These mem-braneswerewashedina1wt%aqueousNaOHat70◦Cinorder...

Ngày tải lên: 07/01/2023, 20:22

... 250 pL of 10 wt% gelatin, 100 pL of 5 wt% aCAL, 100 pL of 5 wt% GDA, and 50 pL of DIW were added to an Eppendorf tube and mixed homogeneously to fabricate 500 pL of Gel5/aCALl-GDAl hydrogels The ... mL) and 100 pL of WST-1 reagent were added into hDFB wells A blank was prepared from fresh DMEM (1 mL) and 100 pL of WST-1 reagent without hDFBs After 2 hours of incubation, the absorbence of ... limitations and obtain further achievement Grasping those benefits of Centella asiatica and hydrogels, we would offer a new hydrogel system Aqueous Centella asiatica leaf extract (aCAL) was prepared and...

Ngày tải lên: 11/01/2023, 15:20

... _ Determination of total polyphenol and flavonoid contents 50 2.2.5 Evaluation of antibacterial and antioxidant activities of extract 31 2.3 Preparation of coating solution and film oo lees ... and antioxidant property of resulting film. - Topic 2: Studying the effect of storage temperature and humidity on the preservation of Cavendish banana and King orange. - Topic 3: Evaluation of ... rate and C2Hy, production [5] Reportedly, the O2 and CO2 concentrations in fruit are paramount importance to production and action of C2H4 It was foundthat the activity of synthesis and oxidase of...

Ngày tải lên: 02/10/2024, 00:23

... follows: 500 g of soil was washed 3 times with distilled water and suspended in 1,000 ml of water The mixture was allowed to stand for 10min and the supernatant was collected and used for the ... concentration of 5 ppm to estimate the effect of pH After 3 min, A660 was measured and the extent of flocculation was calculated Pronase digestion of extracellular polymer Forty milligrams of the ... protein, 160.2 µg of neutral sugar, 58.5 µg of hexosamine, 30.8 µg of uronic acid and 3.8 µg of phosphorus Constituent neutral sugar analysis showed that the neutral sugar was composed of rhamnose,...

Ngày tải lên: 05/09/2013, 09:08

... signal transducer and activator of transcription 6 (stat6) and fork-head box p3 (foxp3), in which two transcripts are pres-ent, that are important in the development of a number of these cell types ... synteny approach in the case of t-bet and foxp3 Multiple alignments of zebrafish t-bet, stat6 and foxp3 amino acids with known vertebrate homologues revealed regions of high conservation, subsequently ... functioning of these transcription factors The gene organiza-tions of zebrafish t-bet and foxp3 were identical to those of the human genes, with the second foxp3 transcript lacking exons 5, 6, 7 and 8...

Ngày tải lên: 16/02/2014, 09:20

... Identification of the initiation codons in GmPDIL-3a and Gm-PDIL-3b mRNAs (A) Schematic representation of the structure of GmPDIL-3a and GmPDIL-3b mRNAs The putative ORFs (gray boxes) of GmPDIL-3a and GmPDIL-3b ... http://www.phytozome.net/soy-bean#A) Comparison of the genomic sequences of GmPDIL-3a and GmPDIL-3b with those of the Ara-bidopsis and rice orthologs showed conservation of exon⁄ intron structure across these ... domains between amino acids 65–164 and 403–481, and 68–167 and 406–508, respectively, corresponding to the a-domain and a¢-domain of PDI [7] Notably, both GmPDIL-3a and GmPDIL-3b lack the two classic...

Ngày tải lên: 18/02/2014, 11:20