Monocytes (MC), lymphocytes (LC) and Kupffer cells (KC) were isolated respectively from blood and surgical liver samples of patients suffering from he-patocellular carcinoma (HCC). 13 patients were given BCG, mixed ba...Monocytes (MC), lymphocytes (LC) and Kupffer cells (KC) were isolated respectively from blood and surgical liver samples of patients suffering from he-patocellular carcinoma (HCC). 13 patients were given BCG, mixed bacterium vaccine (MBV) and human white blood cell interferon (IFN), the other 3 patients were not treated with any biological immune stimulants (BIS) and served as controls. The cytosta-tic and cytotoxic effects of MC and KC on human hepatoma SMMC-7721 (TC) were assayed in vitro and the numbers of T total (Tt), T helper (Th) and T suppressor (Ts) cells were counted using CD monoclonal antibody immunofluorescence. The results were as follows: (1) On the 7th day after the first administration of BIS, the cytostatic and cytotoxic effects of MC on TC showed obvious increase over pre-administration. The activity of BIS was 1 ?5 times as high as that in the controls. (2) After 3 administrations, the cytostatic effect of MC on TC increased to the normal level (84%), while the controls remained as before (45%). (3) On the 7th day after first administration, cytostatic and cytotoxic effects of KC on TC were 0.5 and 1 times higher respectively than those of the controls. (4) The numbers of Tt and Th of patients given BIS increased continuously; on the contrary Ts decreased in number. These results indicate that combined use of BCG, MBV and IFN can actively enhance the immune anti-hepatoma function of patients suffering from HCC.展开更多
苯酚废水生物毒害作用强,处理过程消耗能量大,利用微生物燃料电池技术处理苯酚废水可在水质净化的同时以电能的形式回收能量。本文以模拟苯酚废水为燃料构建并启动双室微生物燃料电池,考察电池产电特性及对苯酚废水的降解特性。结果表明...苯酚废水生物毒害作用强,处理过程消耗能量大,利用微生物燃料电池技术处理苯酚废水可在水质净化的同时以电能的形式回收能量。本文以模拟苯酚废水为燃料构建并启动双室微生物燃料电池,考察电池产电特性及对苯酚废水的降解特性。结果表明:微生物燃料电池可以利用苯酚废水为底物产电,电池稳定运行电压输出为220±10 m V,稳定输出功率密度为161.30 m W/cm~3±0.33 m W/cm~3;电池对苯酚处理效果较好,COD去除率为79.4%±2.0%,相应的苯酚污染物去除率为97.0%±2.0%;稳定运行的电池阳极微生物多样性较好。展开更多
文摘Monocytes (MC), lymphocytes (LC) and Kupffer cells (KC) were isolated respectively from blood and surgical liver samples of patients suffering from he-patocellular carcinoma (HCC). 13 patients were given BCG, mixed bacterium vaccine (MBV) and human white blood cell interferon (IFN), the other 3 patients were not treated with any biological immune stimulants (BIS) and served as controls. The cytosta-tic and cytotoxic effects of MC and KC on human hepatoma SMMC-7721 (TC) were assayed in vitro and the numbers of T total (Tt), T helper (Th) and T suppressor (Ts) cells were counted using CD monoclonal antibody immunofluorescence. The results were as follows: (1) On the 7th day after the first administration of BIS, the cytostatic and cytotoxic effects of MC on TC showed obvious increase over pre-administration. The activity of BIS was 1 ?5 times as high as that in the controls. (2) After 3 administrations, the cytostatic effect of MC on TC increased to the normal level (84%), while the controls remained as before (45%). (3) On the 7th day after first administration, cytostatic and cytotoxic effects of KC on TC were 0.5 and 1 times higher respectively than those of the controls. (4) The numbers of Tt and Th of patients given BIS increased continuously; on the contrary Ts decreased in number. These results indicate that combined use of BCG, MBV and IFN can actively enhance the immune anti-hepatoma function of patients suffering from HCC.
文摘苯酚废水生物毒害作用强,处理过程消耗能量大,利用微生物燃料电池技术处理苯酚废水可在水质净化的同时以电能的形式回收能量。本文以模拟苯酚废水为燃料构建并启动双室微生物燃料电池,考察电池产电特性及对苯酚废水的降解特性。结果表明:微生物燃料电池可以利用苯酚废水为底物产电,电池稳定运行电压输出为220±10 m V,稳定输出功率密度为161.30 m W/cm~3±0.33 m W/cm~3;电池对苯酚处理效果较好,COD去除率为79.4%±2.0%,相应的苯酚污染物去除率为97.0%±2.0%;稳定运行的电池阳极微生物多样性较好。
文摘为研究生物阴极在MFC(微生物燃料电池)中的应用,分别以粒径为2~4 mm的颗粒活性炭和粒径为2~4、4~8、8~12mm的颗粒石墨为阴极基质材料,构建升流复合生物阴极型单室MFC,研究阴极基质材料的种类和粒径对MFC的产电性能和净水效能的影响.结果表明:当阳极基质材料为2~4 mm粒径的颗粒活性炭时,燃料电池中利用玻璃纤维取代离子交换膜,阴极基质材料为选用4~8 mm粒径颗粒石墨的反应柱产电量最大,为534 m V(外电阻为1 000Ω),最大功率密度达到631.6 m W/m^3,库伦效率为3.82%;阴极的p H越低越有利于阴极的产电反应;不同阴极基质材料的MFC对CODCr去除率均在80%左右,TN、NH_4^+-N及TP的去除率最高可分别达到79%、93%和34%.研究显示,阴极基质材料的种类和粒径对MFC的产电性影响较大,但对其净水效能的影响不大.
