In this study, a capillary electrophoresis immunoassay(CEIA) method based on the enhanced chemiluminescence(CL) detection was developed. A horseradish peroxidase(HRP) label catalyzing the luminol/H 2O 2/p-iodophenol(P...In this study, a capillary electrophoresis immunoassay(CEIA) method based on the enhanced chemiluminescence(CL) detection was developed. A horseradish peroxidase(HRP) label catalyzing the luminol/H 2O 2/p-iodophenol(PIP) reaction was performed, and the HRP was detected with detection limit(S/N=3) of 4.4 pmol/L(53 zmol), which is one of the highest sensitivity of HRP reported yet. The HRP was linked to bone morphogenic protein-2(BMP-2) in rat vascular smooth muscle(VSM) cells in noncompetitive format and first detected by CL. HRP-Ab 2-mAb-BMP-2 complexes were baseline separated from free HRP label in 3 min. The detection limit(S/N=3) of BMP-2 is 6.2 pmol/L(75 zmol). This technique has been applied to arteriosclerosis pathology research. The change of BMP-2 contentin VSM cells which were stimulated by angiotensin Ⅱ(AgⅡ) for different hours was investigated in the concentration range of 1.0-10.0 pmol/L. The results are in accord with that obtained by common used Pathology image analysis system.展开更多
查尔酮类化合物是合成黄酮类药物的重要中间体,而且它本身也具有广泛的药理活性。在稀碱催化下,于75～80℃反应1.5h,苯乙酮分别与水杨醛、5-氯水杨醛、5-硝基水杨醛进行交叉羟醛缩合反应,合成了其中两个鲜见文献报道的查尔酮类化合物,...查尔酮类化合物是合成黄酮类药物的重要中间体,而且它本身也具有广泛的药理活性。在稀碱催化下,于75～80℃反应1.5h,苯乙酮分别与水杨醛、5-氯水杨醛、5-硝基水杨醛进行交叉羟醛缩合反应,合成了其中两个鲜见文献报道的查尔酮类化合物,产物通过元素分析、IR、1 H NMR、MS进行了结构确证。展开更多
文摘In this study, a capillary electrophoresis immunoassay(CEIA) method based on the enhanced chemiluminescence(CL) detection was developed. A horseradish peroxidase(HRP) label catalyzing the luminol/H 2O 2/p-iodophenol(PIP) reaction was performed, and the HRP was detected with detection limit(S/N=3) of 4.4 pmol/L(53 zmol), which is one of the highest sensitivity of HRP reported yet. The HRP was linked to bone morphogenic protein-2(BMP-2) in rat vascular smooth muscle(VSM) cells in noncompetitive format and first detected by CL. HRP-Ab 2-mAb-BMP-2 complexes were baseline separated from free HRP label in 3 min. The detection limit(S/N=3) of BMP-2 is 6.2 pmol/L(75 zmol). This technique has been applied to arteriosclerosis pathology research. The change of BMP-2 contentin VSM cells which were stimulated by angiotensin Ⅱ(AgⅡ) for different hours was investigated in the concentration range of 1.0-10.0 pmol/L. The results are in accord with that obtained by common used Pathology image analysis system.
