B. Irving's "native country" should be independent of European antiquity. C. Irving's experience in Europe was rewarding and gratifying. D. The traditions of the Old World were of great value to Irving. 查看完整题目与答案 已知浓度的标准 NaOH 溶液,因保存不当吸收了二氧化碳。若用此 Na...
Molecular weight (MW) of organics was one of the important factors influencing membrane fouling propensity. This study identified critical foulants of reverse osmosis (RO) membranes in reclaimed water by MW fractionation. MW > 10 kDa component was identified as the critical fouling contributor...
A low-molecular-weight (LMW) heterofucan (designated fucan B) was obtained from the brown seaweed, Spatoglossum schröederi, and its activity as an inhibitor of capillary-like tube formation by endothelial cells (ECs) was analyzed. Chemical, infrared and electrophoretic analyses confirmed the...
Rapid signaling between neurons is mediated by ligand-gated ion channels, cell-surface proteins with an extracellular ligand-binding domain and a membrane-spanning ion channel domain. The degenerin/epithelial sodium channel (DEG/ENaC) superfamily is dive
A process is disclosed for preparing mixtures of low molecular weight polyhydroxyl compounds and hydroxyaldehydes and hydroxyketones by condensing formaldehyde hydrate with itself in the presence of (
aSolution mixtures of low- and high-molecular-weight polymers, PAtBA and HMWP 1, respectively, were prepared such that the high-molecular-weight polymer was the minor component and the low-molecular-weight polymer was the major component. 低和高分子量的聚合物解答混合物, PAtBA和HMWP 1,分别,准...
To prepare the complex sample with phlorizin, the cells were solubilized for 1 h at 4 °C in buffer (50 mM HEPES–NaOH (pH 7.5), 300 mM NaCl, 2% (w/v) DDM (Calbiochem), protease inhibitor cocktail and 1 mM phlorizin). After ultracentrifugation (138,000g, 60 min, 4...
at 55 °C, and the precipitate was dissolved in 100 µL of 0.05 M NaOH. Samples were separated by sodium dodecy sulfate polyacrylamide gel electrophoresis (SDS-PAGE), and the resolved proteins were stained with Coomassie Brilliant Blue (CBB) or transferred onto Amersham Hybond P ...
pH was adjusted to 5.5 and controlled by automatic addition of 30% NaOH and 10% H2SO4. The temperature was maintained at 28 °C throughout the culture, except for the periods of thermal treatment, where indicated. Stirring and aeration were set at 700 rpm and 2 vvm, respectively. ...
First, 1 g gelatin was dissolved in 100 mL PBS at 50 °C. Then, 1 mL methacrylic anhydride solution was added followed by adjusting the pH of the solution to 8.5 ~ 9 with 1 M NaOH. After 3 h, the reaction was finished by adjusting the solution pH to 7.4. Then the...