Preparation and characterization of novel chitosangelatin membranes using chitosan hydrogel

... PVDF-SPS composite membrane Table shows the water uptake of the pristine PVDF membrane, the PVDF-PS membrane and the PVDF-SPS composite membrane The blending of PS polymer reduces the water uptake of ... of the PVDF-SPS membrane: (a) C1s, (b) O1s, (c) S2p 3.4 Morphology of the PVDF-SPS composite membrane The morphologies of the pristine PVDF...

Ngày tải lên: 05/09/2013, 16:11

... concentration of the SnCl4 solution, and the films were annealed at different temperatures and for different period of time Photoconductivity measurement In order to evaluate properties of obtained films ... steps of spray pyrolysis for TiO2 and sol-gel for SnO2 As prepared films exhibit a nanocomposite structure, constituting of a majority of TiO2 and a small amou...

Ngày tải lên: 13/02/2014, 04:20

... N-Terminal sequencing of the kininogens was only successful from the 42-kDa band of wolffish kininogen (XLVQPGVLI…, Table 1) The major bands of both kininogens and also the 60-kDa band of cod kininogen ... biantennary and triantennary N-glycans, with extensive sialic acid O-acetylation Also O-glycosidic glycans were recovered from wolffish kininogen The permethylated O...

Ngày tải lên: 08/03/2014, 23:20

... than the activity in the precipitate from the Ca1 transfected cells demonstrating that the Cb2 antibody in combination with PKA kinase assay could be used to detect specifically Cb2 activity To ... PKA- specific kinase activity, as shown in Fig 4B This demonstrated that precipitates extracted with 8-CPTcAMP contained cAMP-inducible PKA activity that could be inhibited by protein kina...

Ngày tải lên: 16/03/2014, 18:20

... hydrochloride, and mM EDTA in a volume of 0.5 mL Three microliters of 4-vinylpyridine were then added, and alkylation was allowed to proceed for h at room temperature The S-pyridylethylated proteins ... and cloning of tigrin and ablomin During the isolation process of a prothrombin activator from the Duvernoy’s gland of Yamakagashi snake (R tigrinus tigrinus), we ident...

Ngày tải lên: 18/03/2014, 01:20

... To the best of our knowledge, this is the first time to observe this novel morphological structure of the nanocomposites of rutile nanocrystals and titanate nanotubes Fig XRD patterns of the starting ... large amount of water and hydroxyl groups existed in the tubular products because of the existence of a bending vibration of H O H at 1630 cm−1 , and a strong stretch...

Ngày tải lên: 19/03/2014, 16:48

... area of CNTs was also the basis for formation of the composites Though the density of TiO2 is larger than that of CNTs, the TiO2 – CNTs composites could form a homogeneous dispersion in ethanol and ... particles formed in the course of hydrolysis of Ti (OBu)4 Due to the – OH group on TiO2 [23] and the C –O, C=O and O – C=O groups on purified CNTs as aforesai...

Ngày tải lên: 20/03/2014, 13:06

... The nanosheet structure after calcinations was destroyed and changed to nanorods/nanoparticles composite at high temperature [27,30] Conclusions In summary, high surface area nanosheet TiO2 with ... diameter and about 5–10 nm in particles diameter, Fig 6(a–f)) The SEM, TEM, and SAED images of the nanosheet TiO2 calcined at 600 and 700 °C showed almost nanoparticles...

Ngày tải lên: 20/03/2014, 13:06

... physisorption on Ti4+ cations and the second maximum (45 Æ K) is ascribed to N2 physisorption on O2À anions On as-deposited WO3, the TPD intensity of physisorbed N2 attributable to adsorption on Ti4+ ... would contain 2.6 (WO3) 3 nmÀ2, i.e., one (WO3) 3 cluster for every pair of Ti4+ along the [001] direction With this definition, deposition of 7.8 nmÀ2 of WO3 corresponds...

Ngày tải lên: 20/03/2014, 13:06

... Results and discussions The structures of the PPy/Zn0.5Cu0.5Fe2O4 nanocomposite were investigated by FTIR spectroscopy and X-ray diffraction FTIR spectra of the PPy and PPy/Zn0.5Cu0.5Fe2O4 nanocomposite ... XRD patterns of PPy/Zn0.5Cu0.5Fe2O4 nanocomposite (a) and the reference standard data for Zn0.5Cu0.5Fe2O4 of the JCPDS file No 77-0012 (b) Fig SEM micrographs of Zn0...

Ngày tải lên: 20/03/2014, 13:08

... Effect of KCl on the activity of salt-active acharan sulfate lyase d, salt-active acharan sulfate lyase II purified from Fr-s in Fig 1; m, heparin lyase II-1 (acharan sulfate lyase 1) purified from ... specificity of purified salt-active acharan sulfate lyase The purified salt-active acharan sulfate lyase degraded heparin and heparan sulfate as w...

Ngày tải lên: 23/03/2014, 21:20

... Vecchio P, Fessas D, Giancola C & Graziano G (1993) THESEUS: a new software package for the handling and analysis of thermal denaturation data of biological macromolecules J Thermal Anal 38, 2779–2790 ... C Giancola et al Geodin, a sponge bc-crystallin-type protein Table Domain–domain interface analysis of alternative models of geodin domain assembly Mod-prs Mod-prs Mod...

Ngày tải lên: 30/03/2014, 15:20

... activation of factors V and VIII by thrombin and then prevent these cofactors from forming prothrombinase and tenase complexes On the other hand, as shown in Fig 7, madanin and suppressed thrombin- induced ... salivary glands of H longicornis [24] According to this report, an extract of the salivary glands prolonged both APTT and PT, suggesting the presence o...

Ngày tải lên: 31/03/2014, 01:20

... purification and characterization of chondroitin ABC and AC lyases, particulary chondroitin AC lyase, from an anaerobic bacterium (B stercoris) in human intestine The substrate specificity and other ... suggest that chondroitin ABC and AC lyases have exolytic and endolytic action patterns These chondroitin ABC and AC lyases showed optimal ac...

Ngày tải lên: 31/03/2014, 23:20

... 3.6 g of iron-oleate, 1.91 mL of oleylamine and 0.64 mL of oleic acid were mixed together and were heated at 120∘C for one hour After that, the dark solution was quickly heated up to 200∘C and ... CTAB;[16] and 0.5 mL of the resulting Fe3 O4 /CTAB aqueous solution were diluted with 10 mL of water Then 0.3 mL of NH4 OH aqueous solution, 0.03 mL of tetraethylorthosilicat...

Ngày tải lên: 14/05/2014, 15:49