The polypropylene for preparing packing(biofilm carrier) used in biodegradation of wastewater was modified by adding some biocompatible, hydrophilic and magnetic additives such as stearic acid, polyvinyl alcohol, acti...The polypropylene for preparing packing(biofilm carrier) used in biodegradation of wastewater was modified by adding some biocompatible, hydrophilic and magnetic additives such as stearic acid, polyvinyl alcohol, activated carbon and magnetic powders.The prepared packing was then magnetized in a magnetizer to be charged with a 2.5×10 -3 —5.0×10 -3 tesla permanent magnet.The wettablity and biofilm formation performance of the modified and magnetized packing were tested.The result showed that the adsorbed water content of the polypropylene packing increased more than 300% and the period of biofilm formation reduced from 7—9 days to within 2 days after modification and magnetization.The removal rate of COD Cr by the modified and magnetized packing was also proved to be 30% higher than that by the original polypropylene packing.展开更多
目的评价经阴道植入轻型钛化聚丙烯网片TiLOOP的盆底重建术的临床短期疗效和安全性。方法回顾性分析南京医科大学附属无锡妇幼保健院2017年11月至2019年7月,以阴道前壁膨出Ⅲ~Ⅳ度为主的50例盆腔器官脱垂(POP)患者,对其实施经阴道植入Ti...目的评价经阴道植入轻型钛化聚丙烯网片TiLOOP的盆底重建术的临床短期疗效和安全性。方法回顾性分析南京医科大学附属无锡妇幼保健院2017年11月至2019年7月,以阴道前壁膨出Ⅲ~Ⅳ度为主的50例盆腔器官脱垂(POP)患者,对其实施经阴道植入TiLOOP网片的盆底重建术,其中自行裁剪TiLOOP网片的“协和式”盆底重建术37例、TiLOOP Total 6套盒网片的盆底重建术13例。评价术后各项主观指标[包括患者整体印象改善评分(PGI-I)、盆底不适调查表简表(PFDI-20)、盆底功能影响问卷简表(PFIQ-7)、盆腔器官脱垂与尿失禁性生活问卷(PISQ-12)]、客观指标(包括临床疗效评定为“成功”)以及并发症的发生情况。结果50例POP患者的随访时间为(18±6)个月。手术成功率为90%(45/50),单独阴道前壁、顶端、后壁脱垂的复发率分别为2%(1/50)、2%(1/50)、6%(3/50);无一例行再次手术或子宫托治疗。PGI-I显示,50例患者均主观满意,其中明显改善者46例(92%,46/50)、有改善者4例(8%,4/50);术后3、6、12个月随访,PFDI-20及PFIQ-7评分均较术前显著下降,差异均有统计学意义(P均<0.05);PISQ-12评分术前与术后比较,差异无统计学意义(P>0.05),无新发性交痛。网片暴露率为12%(6/50),新发压力性尿失禁的发生率为4%(2/47)。结论经阴道植入TiLOOP网片的盆底重建术是一种安全、有效的手术方式,短期疗效较好,但如何减少网片暴露仍需继续探究。展开更多
基金广东省自然科学基金 (No 0 115 63 )广东省科技计划项目 (No 2 0 0 2C3 163 1)国家环保局华南环境科学研究所青年基金资助项目~~
文摘The polypropylene for preparing packing(biofilm carrier) used in biodegradation of wastewater was modified by adding some biocompatible, hydrophilic and magnetic additives such as stearic acid, polyvinyl alcohol, activated carbon and magnetic powders.The prepared packing was then magnetized in a magnetizer to be charged with a 2.5×10 -3 —5.0×10 -3 tesla permanent magnet.The wettablity and biofilm formation performance of the modified and magnetized packing were tested.The result showed that the adsorbed water content of the polypropylene packing increased more than 300% and the period of biofilm formation reduced from 7—9 days to within 2 days after modification and magnetization.The removal rate of COD Cr by the modified and magnetized packing was also proved to be 30% higher than that by the original polypropylene packing.
文摘目的评价经阴道植入轻型钛化聚丙烯网片TiLOOP的盆底重建术的临床短期疗效和安全性。方法回顾性分析南京医科大学附属无锡妇幼保健院2017年11月至2019年7月,以阴道前壁膨出Ⅲ~Ⅳ度为主的50例盆腔器官脱垂(POP)患者,对其实施经阴道植入TiLOOP网片的盆底重建术,其中自行裁剪TiLOOP网片的“协和式”盆底重建术37例、TiLOOP Total 6套盒网片的盆底重建术13例。评价术后各项主观指标[包括患者整体印象改善评分(PGI-I)、盆底不适调查表简表(PFDI-20)、盆底功能影响问卷简表(PFIQ-7)、盆腔器官脱垂与尿失禁性生活问卷(PISQ-12)]、客观指标(包括临床疗效评定为“成功”)以及并发症的发生情况。结果50例POP患者的随访时间为(18±6)个月。手术成功率为90%(45/50),单独阴道前壁、顶端、后壁脱垂的复发率分别为2%(1/50)、2%(1/50)、6%(3/50);无一例行再次手术或子宫托治疗。PGI-I显示,50例患者均主观满意,其中明显改善者46例(92%,46/50)、有改善者4例(8%,4/50);术后3、6、12个月随访,PFDI-20及PFIQ-7评分均较术前显著下降,差异均有统计学意义(P均<0.05);PISQ-12评分术前与术后比较,差异无统计学意义(P>0.05),无新发性交痛。网片暴露率为12%(6/50),新发压力性尿失禁的发生率为4%(2/47)。结论经阴道植入TiLOOP网片的盆底重建术是一种安全、有效的手术方式,短期疗效较好,但如何减少网片暴露仍需继续探究。
