| 1 | Thermal Stability,Thermal Decomposition and Mechanism Analysis of Cycloaliphatic Epoxy/4,4'-dihydroxydiphenylsulfone/Aluminum Complexes Latent Resin Systems显示文摘The thermal stability of latent resin systems, cycloaliphatic epoxy/4,4'-dihydroxydiphenylsulfone/aluminum complexes, was investigated by dynamic differential scanning calorimetry (DSC) analysis. Experiments were conducted under non-isothermal condition in a nitrogen atmosphere at the heating rate of 10, 20, 30 and 40 ℃/min, respectively. TG curves showed that, in the temperature range of 25 to 600 ℃, the stability of the resin systems could be enhanced by increasing the length of the aliphatic chain in the initiator. Both the Kissinger method and the Ozawa-Flynn-Wall method were employed to calculate activation energies of the decomposition reaction, and the values obtained from the two methods were compared. Moreover, the corresponding reaction mechanism was identified by the Achar differential method and the Coats-Redfern integral method. The experimental results showed that these four methods were reliable and effective to study the kinetics of the thermal decomposition reaction; and the most probable thermal decomposition mechanism of the resin systems we proposed was found to comply with Mampel power law (m=1). | 吴松全 LIU Shaozhu 刘宇艳 ZHU Qi WEI Huige | 2012 | Journal of Wuhan University of Technology(Materials Science)2012，27，6： | 2 |
| 6 | Recent advances in DNA glycosylase assays显示文摘Genomic deoxyribonucleic acid(DNA)is selected as the ideal carrier for preserving and transmitting the genetic information over the course of evolution.However,the genomic DNA is constantly exposed to various endogenous and environmental threats,causing a diversity of damaged bases,lesions,mismatches and base-pair modifications in the genome,eventually leading to genomic instability and cancers.Base excision repair(BER)is the most important repair mechanism,repairing a variety of DNA damages arising from oxidation,alkylation,methylation,deamination,and hydrolysis reactions.DNA glycosylases are responsible for initiating the first step of the BER pathway through cleaving the N-glycosidic bond between the damaged base and the DNA backbone.However,abnormal DNA glycosylases are associated with a variety of diseases such as cancer,cardiovascular disease,neurological disease and inflammation,suggesting the important role of DNA glycosylases in cancer diagnosis and treatment.Therefore,it is highly desirable to monitor the activity of DNA glycosylases,gaining a deep understanding of the restoration process of damaged DNA and clinical diagnosis.Recently,a series of novel DNA glycosylases detection methods with excellent performance have been developed.In this minireview,we summarize the recent advances in DNA glycosylase assays including amplification-free assay and amplification-assisted assay.Firstly,a brief introduction of amplification-free assay for DNA glycosylase is given.Then,amplification-assisted assays for DNA glycosylases are discussed in detail.Ultimately,the conclusion and prospects of the directions of DNA glycosylase assays are provided. | Lili Wang Huige Zhang Wei Chen Hongli Chen Jianxi Xiao Xingguo Chen | 2022 | Chinese Chemical Letters2022，33，8： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员