纳米比色化学传感器的设计及其在生物分子检测中的应用

<正>近年来,人们一直致力于制作能够在复杂实际样品中高灵敏度和选择性地检测被测物种的比色型光化学传感器.具备高选择性和灵敏度的比色型传感器的研究已经成为目前传感器领域的研究热点.纳米科技爆炸式的发展为优化比色型化学传感器的性能提供了可能.本论文基于对比色型光化学传感器的充分认识,和对纳米材料在构建比色型传感器     

Real time detection of antibody-antigen interaction using a laser scanning confocal imaging-surface plasmon resonance system

A laser scanning confocal imaging-surface plasmon resonance (LSCI-SPR) instrument integrated with a wavelength-dependent surface plasmon resonance (SPR) sensor and a laser scanning confocal microscopy (LSCM) is built to detect the bonding process of human IgG and fluorescent-labeled affinity purified antibodies in real time. The shifts of resonant wavelength at different reaction time stages are obtained by SPR, corresponding well with the changes of the fluorescence intensity collected by using LSCM. The instrument shows the merits of the combination and complementation of the SPR and LSCM, with such advantages as quantificational analysis, high spatial resolution and real time monitor, which are of great importance for practical applications in biosensor and life science.