composite of tio2 nanowires and nafion as humidity sensor material

... Before ﬁrst measurement of a sensor, aging of each sensor was performed for 2 weeks in a 97%K2SO4salt solution system. Long-term stability of the sensorswas tested in the humidity measurement ... Sensors and Actuators B 115 (2006) 198–204 Composite of TiO2 nanowires and Naﬁon as humidity sensor material Ren-Jang Wua,∗, Yi-Lu Sunb, Chu-Chieh ... (Z/Ω) was the parameter of the humidity measurement. A good sensitive characteristic curvewas not observed with the sensing materials of TiO2powder and nanowires combined with TEOS in the humidity...

hydrothermal synthesis and photoluminescence of tio2 nanowires

... totheir surface. On the other hand, some of the nanowires aggregated into bundles in the solutionFig. 1. XRD pattern of the as- prepared nanowires (A and Brepresent anatase and brookite, respectively).Fig. ... dif-fraction peak of brookite (denoted as B in Fig. 1)can also be found, it is much lower than those of anatase phase. No characteristic peaks of otherimpurities, such as NaCl and Na2TiO3, ... range (465 and 520 nm band) and attributed them to the oxygen vacancies. Jin et al.[19] observed two peaks at 488 and 510 nm fromanatase TiO2ﬁlm with the addition of ZnFe2O4 and ascribed...

preparation of wo3 nanoparticles and application to no2 sensor

... firstapplication of the gas evaporation to the formation of metal-oxidenanoparticles for a gas sensor was attempted by Ogawa et al. [18].They applied SnO2nanoparticles formed by plasma-assisted gasevaporation ... gasevaporation to a gas sensor and found that this sensor was highlysensitive to combustible gases.It was Solis et al. [19] and Reyes et al. [20] who first applied WO3nanoparticles formed by gas evaporation ... of the gas sensors was determined bymeasuring the electric current flowing through the sensor sampleat a constant voltage of 10 V between interdigitated Pt electrodes.The gas sensitivity was...

Investigation of au and in as solvents for the growth of silicon nanowires on si(1 1 1)

... different behavior of gold and indium on Si(1 1 1)has been described and analyzed. An explanation based ondifferences of solubilities of surface atoms in gold and indium and on the different ... energies of the bare and oxidized substrate as well as on the surface tension of theliquid metal alloys has been presented.Silicon nanowires have been grown via VLS mechanismwith the use of gold and ... theeffects of different diffusion coefﬁcients of gold and indiumon silicon, the solubility of substrate atoms in the twometals, the surface tension of gold and indium and thesurface energy of silicon...

syntheses of tio2(b) nanowires and tio2 anatase nanowires by hydrothermal and post-heat treatments

... was composed of titanate nanowires. From the SEM images, bothdiameter and length of nanowires were larger thanthose of nanotubes; the diameter and length of nanowires were about 10–50 nm and ... images of (a) and (b) show almost only nanowires. Those of (c) and (d) show both nanowires and small amount of particles. Over 800 1C, the surfaces of nanowires became smooth because of the progress ... hydrothermalsynthesisA commercial, ﬁne TiO2(anatase) powder (IshiharaSangyo Ltd., ST-01, $300 m2/g) was used as a starting material. A total of 2 g of TiO2powder and 25 mL of 10 M NaOH aqueous solution were...

Characterization and deactivation of sulfided red mud used as hydrogenation catalyst

...

Photodegradation and removal of phenol and phenolic derivatives from petroleum refinery wastewater using nanoparticles of TiO2

... with 100 mg L−1 of TiO2, and temperature of 303 K). Figure 2 shows, very low reduction of COD which was found in the absence of light. The increase of temperature to 318 K and catalyst concentration ... nanoparticles of TiO2 mixed phase of anatase: rutile with highest activity with 21nm in size were purchased from plasmachem Co. Surface area by BET is 80 m2g-1 [22]. The analysis of wastewater ... application of TiO2 photocatalysis as primary degradation system of phenol and phenolic derivatives from refinery wastewater. The removal of phenol was investigated in terms of various parameters...

Tài liệu Báo cáo khoa học: Identiﬁcation of Ewing’s sarcoma protein as a G-quadruplex DNA- and RNA-binding protein ppt

... G-quadru-plex DNA and RNA.Fig. S2. CD spectra of DNAs and RNAs.Fig. S3. Binding affinity of EWS and RBD toHtelo.Fig. S4. In vitro arginine methylation of RGG3 byPRMT3.Fig. S5. Identification of significant ... EMSA was performedwith RGG3 (lanes 2 and 4) and 32P-labeled Htelo (lanes 1 and 2) orrHtelo (lanes 3 and 4). (B) EMSA was performed with RGG3 (lanes2 and 4) and 32P-labeled rHtelo (lanes 1 and ... per-formed with EWS (lanes 2, 4 and 6) and 32P-labeled Htelo (lanes 3 and 4), dsHtelo (lanes 5 and 6) or ssDNA S (lanes 1 and 2). Thestructures of DNAs used as probes are indicated above each...

Tài liệu Báo cáo khoa học: Enzymatic properties of wild-type and active site mutants of chitinase A from Vibrio carchariae, as revealed by HPLC-MS pptx

... thewild-type and mutants D392N and E315M, migratingwith an Mr of  63 000 (Fig. 4A). In the case of theE315Q mutant, an additional faint band was alsoseen at an Mr of  43 000. This band appeared as ... viscosityassay and HPLC-ESI MS suggested that the newly iso-lated chitinase acts as an endochitinase [25]. We alsoreported isolation of the gene encoding chitinase A and functional expression of ... activity of chitinase A resulting in the production of a broad range of chitooligosaccharide products wasmeasured simultaneously by means of quantitativeHPLC-ESI MS. Site-directed mutagenesis was...

Tài liệu Báo cáo Y học: Use of site-speciﬁc recombination as a probe of nucleoprotein complex formation in chromatin Micha Schwikardi and Peter Droge ¨ potx

... cassette is com-posed of two directly repeated copies of res and of loxPsites. They ﬂank the coding region of the hygromycin genewhich serves as the resistance marker for the generation of stable ... resolvase, and thetwo resolvase mutants have been described previously [10].pTRE-res-lox-hygromycin-res-lox-lacZ (-RLHRLZ) wasgenerated by PCR using the recombination cassette of pCH-RLNRLZ as ... doxycyclin (20 ng:mL21) was added 2 weeksprior to electroporation.b-Galactosidase (b-gal) assays, Southern blotting and PCRb-Gal assays and Southern blotting were performed as described previously...

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