排序方式: 共有27条查询结果,搜索用时 15 毫秒
1.
Yan Meng Ding Congcong Shu Xiaoyan Liu Yi Yang Jingjun Wei Guilin Zhang Zhentao Xie Yi Lu Xirui 《Journal of Radioanalytical and Nuclear Chemistry》2021,329(1):401-410
Journal of Radioanalytical and Nuclear Chemistry - To long-term immobilization of secondary iodine-waste, iodine loaded silver-coated silica-gel (AgIs), glass-powder was used to directly solidify... 相似文献
2.
3.
Wang X Li Z Zeng X Luo Q Evans DJ Pickett CJ Liu X 《Chemical communications (Cambridge, England)》2008,(30):3555-3557
Infrared data for mono-iron complexes possessing two cis-CO together with M?ssbauer data for the enzyme and a model complex support the assignment that the iron centre of the cluster-free hydrogenase Hmd is low-spin Fe(II). 相似文献
4.
许多金属元素对于生物体是必需的,Na、K、Mg、Ca、Mn、Fe、Co、Cu、Mo和Zn在人体中的含量约3%;各种金属离子在生物体中具有不同的作用,其功能是很复杂的.铜在生物体内主要是进行氧化还原反应,起输送氧气和电子载体的作用.如果人体内缺乏铜,则... 相似文献
5.
Yang Yushan Xie Xiaodong Yang Xiaoyong Lu Xirui Yu Ke Li Lingshuang Wang Xueli Wang Xiaofen Ma Jiang Li Linyan 《Journal of Radioanalytical and Nuclear Chemistry》2019,320(3):733-739
Journal of Radioanalytical and Nuclear Chemistry - In this paper, a sol-spray pyrolysis route was employed to fabricate (Cs, Ba)-hollandite ceramic waste forms. The high-phase purity... 相似文献
6.
Liu Yi Wei Guilin Feng Yaxin Lu Xirui Chen Yan Sun Runjie Peng Lin Ma Meihua Zhang Yu Zhang Zhentao 《Journal of Radioanalytical and Nuclear Chemistry》2020,324(2):579-587
Journal of Radioanalytical and Nuclear Chemistry - Immobilization of radioiodine is a significant requirement for future nuclear fuel development. This research mainly focuses on the production of... 相似文献
7.
为了探寻治疗阿尔茨海默症(AD)的潜在双靶标活性化合物,本研究设计合成了5个新的查尔酮衍生物,并对它们的生物活性进行了评价。酶活性测定结果表明,化合物C1~C5对乙酰胆碱酯酶(AChE)和丁酰胆碱酯酶(BuChE)均具有显著的抑制活性。其中,化合物C4对AChE和BuChE有明显的抑制作用,IC50分别为6.00和2.63μmol/L。细胞实验表明,化合物C4对Glu、H2O2和Aβ1-42诱导的神经母细胞瘤SH-SY5Y损伤具有显著的保护作用,且呈剂量依赖性。Y迷宫和Morris水迷宫研究表明,C4能改善东莨菪碱诱导的小鼠的认知障碍和背景记忆能力,且对小鼠自主活动无影响,具有毒副作用小的优点。此外,C4能显著降低小鼠皮层总胆碱酯酶和丙二醛含量,提高谷胱甘肽过氧化物酶和超氧化物歧化酶含量。分子模拟显示,化合物C4能够结合AChE和BuChE的催化活性位点和外周阴离子位点。因此,化合物C4可能是一种很有前途的双靶向活性分子,值得做进一步的结构优化和活性评价,以期发现更安全高效的AD治疗药物。 相似文献
8.
Xu F Tard C Wang X Ibrahim SK Hughes DL Zhong W Zeng X Luo Q Liu X Pickett CJ 《Chemical communications (Cambridge, England)》2008,(5):606-608
Carbon monoxide binding by displacement of a pendant hemi-labile ligand at a di-iron site can be substantially 'switched-on' via a ligand protonation pathway which is competitive with metal-metal bond protonation. 相似文献
9.
10.
Yan Sui Xirui Zeng Xiaoniu Fang Xiangkai Fu Yian Xiao Li Chen Menghua Li Shu Cheng 《Journal of molecular catalysis. A, Chemical》2007,270(1-2):61-67
Five kinds of dioxomolybdenum(VI) complexes with Schiff base ligands derived from tris(hydroxymethyl)amino methane are prepared and structurally characterized by X-ray crystallography, which reveals that these complexes adopt a distorted octahedral six-coordinate configuration formed by the tridentate Schiff base ligand, one coordinating water and two binding oxygen atoms. These complexes show good catalytic activities and selectivity in the epoxidation of cyclohexene with t-butylhydroperoxide, especially for complex 4, which could give a nearly 100% of epoxidation conversion and selectivity. Introduction of the electron-withdrawing group to the salicylidene ring of complex strongly increases the effectiveness of a catalyst, but decreases the redox stability of a complex. 相似文献