项目名称: 基于PDMS微流控芯片的表面生物功能化研究
项目编号: No.20875100
项目类型: 面上项目
立项/批准年度: 2009
项目学科: 生物科学
项目作者: 任雪芹
作者单位: 中国农业大学
项目金额: 38万元
中文摘要: 针对微流控芯片表面生物功能化这一热点问题,结合当前生物化学分析领域的有关蛋白质组的研究,开展了创新性研究。首先,选择了能够抗蛋白吸附的天然高分子和合成的亲水性的高分子材料,对材料进行功能化的研究,赋予对蛋白进行选择性鉴别的功能,配以适当的含有功能基团的功能单体等,然后,将该性后的材料进行一系列的物理、化学表征,如ATR-IR、SEM、AFM等,然后将它们填充在在微流控的芯片通道中应用。进行一系列以及针对植物磷酸化蛋白吸附、解吸附的特异性、选择性和灵敏度等的研究,考察不同的缓冲体系中表现。最后,利用活性基团衍生化反应,通过生物素-亲和素系统的键合化学进一步展开蛋白质和酶表面图案化的研究。研究芯片不同区域功能基团及蛋白质将选择性地被接枝固定,考察蛋白和酶固定后的相关性能,为进一步深入研究微流控芯片分子探针和微传感器奠定理论和实践基础。
中文关键词: 微流控芯片;生物功能化;蛋白质组;磷酸化;表面图案化
英文摘要: Biological modification of Microfluidic chips has attracted a lot of attention recently. Combination with current hot spot -proteome study, we carried out some innovative research work. First, select the anti-protein adsorption materials including natural polymers and synthetic hydrophilic polymer functional materials research. Then adding functional groups to confer identifing capability of special proteome like phosphproteins. Followed by the characterization of the he nature of the material based on a series of physical, chemical techniques, such as the ATR-IR, SEM, AFM, etc. Finally filled in the microfluidic chip channel for further applications. Sensitivity, specificity and selectivity were examined to evaluate the performance of different buffer systems. The use of active groups derivatization by biotin - avidin system to further expand the chemical bonding surface patterning of proteins and enzyme studies. Different regions of the chip and protein functional groups are grafted to selectively fixed to study the proteins and enzymes related to performance after fixation, for the further study of microfluidic chips and micro-sensor probe molecules laid the theoretical and empirical basis.
英文关键词: microfluidic chips\biological functionization\proteomics\phosphorylation\surface patterning