Based on density functional theory and electronegativity equalization principle, a σπ model, which considers the structure of double bond for the first ti
A cationic polyelectrolyte with a high density charge, its average molecular weight was 2.60×10 6 and cationic character reached 45%, adsorbed on the particle
目的从体内和体外实验2个方面探讨微小RNA-30e(miR-30e)在脓毒症诱导急性肺损伤(ALI)发生时的差异表达及其与炎性因子IL-1β、TNF-α表达的相关性。方法30只雄性SD大鼠随机等量分为5组:正常对照组,脓毒症3、6、12、24 h组,腹腔注射脂多糖(LPS)10 mg/kg构建脓毒症大鼠ALI模型。体外培养大鼠肺泡巨噬细胞株NR8383,分为空白对照组和以终质量浓度1 mg/L L
By varying the concentration of APS aqueous solution, reaction time and temperature, a series of silica pillared layered niobic acids with different interlayer
TiO 2 nanoparticle film catalysts with different thicknesses were prepared by plasma enhanced chemical vapor deposition(PECVD) method and the surfaces were su