An anion exchange resin NDP-5 has been prepared successfully and applied on the selective removal of nitrate from SO_4^（2-）/ NO_3^- binary co-existence system.The composition and morphology of NDP-5 were confirmed b...An anion exchange resin NDP-5 has been prepared successfully and applied on the selective removal of nitrate from SO_4^（2-）/ NO_3^- binary co-existence system.The composition and morphology of NDP-5 were confirmed by FT-IR and SEM.The NDP-5 resin exhibits the completely different behavior on the adsorption capacity,adsorption kinetic and the effect of the completing anion in the absence or presence of sulfate,compared to D213.And,the resultants of kinetic are well fitted by the pseudo-first-order and pseudo-second-order models.These results are very important to develop novel resins with great features.展开更多
目的:观察对深龋或深龋伴可复性牙髓炎行选择性去龋并使用iRoot BP Plus行间接牙髓治疗的临床疗效和影响因素,探讨对此类疾病治疗方法的可行性及适应症选择。方法:选择诊断为深龋或深龋伴可复性牙髓炎,且接受选择性去龋治疗的患者42例,...目的:观察对深龋或深龋伴可复性牙髓炎行选择性去龋并使用iRoot BP Plus行间接牙髓治疗的临床疗效和影响因素,探讨对此类疾病治疗方法的可行性及适应症选择。方法:选择诊断为深龋或深龋伴可复性牙髓炎,且接受选择性去龋治疗的患者42例,在牙科放大镜下操作,以生物陶瓷材料iRoot BP Plus行间接牙髓治疗,分别于术后术后2周、3个月、6个月观察分析各种因素对疗效的影响。结果:患者性别、术前症状、术后即刻症状、窝洞洞型、充填材料对术后6个月的治疗效果均无影响。结论:对诊断为深龋或深龋伴可复性牙髓炎的成熟恒牙,选择性去龋和iRoot BP Plus间接牙髓治疗可获得一定疗效,性别、术前症状、术后即刻症状、窝洞洞型、充填材料均不影响疗效。展开更多
A novel magnetic anion exchange resin NDM-1 was prepared through suspension polymerization and then functionalized with ammonolysis and alkylating agents.Its application for selective removal of nitrate was performed ...A novel magnetic anion exchange resin NDM-1 was prepared through suspension polymerization and then functionalized with ammonolysis and alkylating agents.Its application for selective removal of nitrate was performed in comparison with MIEX.The results demonstrated that NDM-1 achieved higher efficiency in nitrate removal than MIEX did,with or without the existence of competing anion SO_4^2- ascribed to its longer alkyl chains on exchange sites.Combined with the advantage of easy separation due toγ-Fe_2O_3 implanted,the magnetic anion exchange resin NDM-1 was considered to be superior to MIEX for nitrate removal in practical application.展开更多
基金acknowledge generous suppoa provided by Program for Changjiang Scholars Innovative Research Team in UniversityNSFC(Nos50938004,50825802 and 51178215)+1 种基金Jiangsu Natural Science Fund(Nos BK2010006 and BK201 1032)P.R. Chinathe Scientific Research Starting Fund for Postdoctors,Nanjing University(No0211003046)
文摘An anion exchange resin NDP-5 has been prepared successfully and applied on the selective removal of nitrate from SO_4^（2-）/ NO_3^- binary co-existence system.The composition and morphology of NDP-5 were confirmed by FT-IR and SEM.The NDP-5 resin exhibits the completely different behavior on the adsorption capacity,adsorption kinetic and the effect of the completing anion in the absence or presence of sulfate,compared to D213.And,the resultants of kinetic are well fitted by the pseudo-first-order and pseudo-second-order models.These results are very important to develop novel resins with great features.
文摘目的:观察对深龋或深龋伴可复性牙髓炎行选择性去龋并使用iRoot BP Plus行间接牙髓治疗的临床疗效和影响因素,探讨对此类疾病治疗方法的可行性及适应症选择。方法:选择诊断为深龋或深龋伴可复性牙髓炎,且接受选择性去龋治疗的患者42例,在牙科放大镜下操作,以生物陶瓷材料iRoot BP Plus行间接牙髓治疗,分别于术后术后2周、3个月、6个月观察分析各种因素对疗效的影响。结果:患者性别、术前症状、术后即刻症状、窝洞洞型、充填材料对术后6个月的治疗效果均无影响。结论:对诊断为深龋或深龋伴可复性牙髓炎的成熟恒牙,选择性去龋和iRoot BP Plus间接牙髓治疗可获得一定疗效,性别、术前症状、术后即刻症状、窝洞洞型、充填材料均不影响疗效。
基金provided by Program for Changjiang Scholars and Innovative Research Team in University,NSFC(Nos.50825802 and 51178215)Jiangsu Natural Science Fund(Nos. BK2010006 and BK2011032),China
文摘A novel magnetic anion exchange resin NDM-1 was prepared through suspension polymerization and then functionalized with ammonolysis and alkylating agents.Its application for selective removal of nitrate was performed in comparison with MIEX.The results demonstrated that NDM-1 achieved higher efficiency in nitrate removal than MIEX did,with or without the existence of competing anion SO_4^2- ascribed to its longer alkyl chains on exchange sites.Combined with the advantage of easy separation due toγ-Fe_2O_3 implanted,the magnetic anion exchange resin NDM-1 was considered to be superior to MIEX for nitrate removal in practical application.
基金supported by National Natural Science Foundation of China(5103500 5,61176104)Shanghai Municipal Science and Technology Commission(11JC1405700,13511500200)
