RETRACTED ARTICLE: A porous Er(III)–organic framework as a highly efficient catalyst for chemical fixation of CO2 and treatment activity on senile deafness via inducing the cochlear hair cell apoptosis
作者:Xiao-Yan Sun、Jun-Nan Li、Gui-Mei Dong、Yan-Li Tao、Yao Chen、Shu-Qin Yang
DOI:10.1007/s13738-020-02111-w
日期:2021.6
A microporous Er(III)-based metal–organic framework (MOF), whose chemical formula can be written as [Er(TCPB)(H2O)]·dioxane·0.5H2O}n, has been formed from the tripodal ligand 1,3,5-tris(4-carbonylphenyloxy)benzene (H3TCPB) by solvothermal synthesis and determined by the single crystal X-ray diffraction and the elemental analysis. With the aid of microporous framework and abundant catalytic sites of open Er(III) sites, the activated 1 is a special catalyst for the synthesis of cyclic carbonates from carbon dioxide and epoxy compounds under the cocatalyst TBAB and gently solvent-less conditions. The treatment activity of the compound on the senile deafness, as well as the influence of the compound on the cochlear hair cell death was explored. Firstly, the cell apoptosis of the cochlear hair cells was estimated via CCK-8 assay. Next, the activation of the caspase-3,8 was evaluated with western blot.
一种微孔型以Er(III)为基础的金属有机框架(MOF),其化学式可写为[Er(TCPB)(H2O)]·二噁烷·0.5H2O}n,由三臂配体1,3,5-三(4-羰基苯氧)苯(H3TCPB)通过水热合成形成,并通过单晶X射线衍射和元素分析确定。得益于微孔框架和丰富的开放Er(III)位点催化位点,活化的1在无溶剂温和条件下与助催化剂TBAB协同作用,是合成环状碳酸酯的重要催化剂,从二氧化碳和环氧化合物出发。该化合物对老年性耳聋的治疗活性,以及对耳蜗毛细胞死亡的影响也进行了探讨。首先,通过CCK-8检测估计耳蜗毛细胞的细胞凋亡情况。接下来,利用Western blot评估caspase-3和caspase-8的活化情况。