Endemic fluorosis disease has become a major geo-environmental health care issue caused by fluoride ion. High-efficiency and low-cost materials to uptake fluoride from water have been a chal-lenge for scientists and e...Endemic fluorosis disease has become a major geo-environmental health care issue caused by fluoride ion. High-efficiency and low-cost materials to uptake fluoride from water have been a chal-lenge for scientists and engineers. Here, we report a low-cost process by utilising low-cost starting materials to develop nanocomposite adsorbents for fluoride uptake from water. Bermuda grass as a starting source material converted into nanocomposite carbon fibers upon heat treatment at 800°C for one hour in Nitrogen atmosphere in the presence of metal oxides. Iron oxide-based nanocomposite (IBNC) is performing high (≈97%) removal of fluoride ion at a contact time of 60 minutes (pH 4) followed by titania-based nanocomposite (TBNC) (≈92%) and micro carbon fiber (≈88%) respectively. The phenomenon of fluoride ion uptake is realised by Freundlich adsorption model, and both adsorption capacity and adsorption intensity for IBNC are higher than those for TBNC and micro carbon fiber.展开更多
目的:探究Meek植皮术联合碳纤维敷料修复大面积烧伤创面的效果。方法:将2018年1月-2020年1月笔者医院就诊的109例大面积烧伤患者随机分为观察组55例和对照组54例,对照组实施小邮票皮片移植术、碳纤维敷料联合修复方案,观察组实施Meek植...目的:探究Meek植皮术联合碳纤维敷料修复大面积烧伤创面的效果。方法:将2018年1月-2020年1月笔者医院就诊的109例大面积烧伤患者随机分为观察组55例和对照组54例,对照组实施小邮票皮片移植术、碳纤维敷料联合修复方案,观察组实施Meek植皮技术、碳纤维敷料联合修复方案。比较两组手术相关指标(手术时间、皮片融合时间、创面愈合时间及住院时间)、植皮情况(供皮面积、植皮面积率及术后2周皮片成活率),比较术前及术后12个月两组生活质量[简明烧伤健康量表(Burn-specific health scale-abbreviated,BSHS-A)评分]、术后12个月瘢痕状况[温哥华瘢痕量表(Vancouver scar scale,VSS)评分],比较两组治疗12个月内并发症发生情况。结果:观察组手术时间、皮片融合时间、创面愈合时间、住院时间均显著短于对照组,差异有统计学意义(P<0.05)。观察组供皮面积、植皮面积率显著低于对照组,差异有统计学意义(P<0.05);观察组术后2周皮片成活率显著高于对照组,差异有统计学意义(P<0.05)。术后12个月,两组BSHS-A评分均较治疗前显著升高,且观察组明显高于同一时间对照组,差异有统计学意义(P<0.05)。术后12个月观察组VSS评分低于对照组,差异有统计学意义(P<0.05)。术后12个月,观察组并发症总发生率显著低于对照组,差异有统计学意义(P<0.05)。结论:Meek植皮术联合碳纤维敷料可对大面积烧伤患者创面产生良好修复效果,有效缩短手术时间及患者恢复时间,改善植皮情况并提高术后成活率,同时相关并发症发生较少,具有较高临床应用价值。展开更多
文摘Endemic fluorosis disease has become a major geo-environmental health care issue caused by fluoride ion. High-efficiency and low-cost materials to uptake fluoride from water have been a chal-lenge for scientists and engineers. Here, we report a low-cost process by utilising low-cost starting materials to develop nanocomposite adsorbents for fluoride uptake from water. Bermuda grass as a starting source material converted into nanocomposite carbon fibers upon heat treatment at 800°C for one hour in Nitrogen atmosphere in the presence of metal oxides. Iron oxide-based nanocomposite (IBNC) is performing high (≈97%) removal of fluoride ion at a contact time of 60 minutes (pH 4) followed by titania-based nanocomposite (TBNC) (≈92%) and micro carbon fiber (≈88%) respectively. The phenomenon of fluoride ion uptake is realised by Freundlich adsorption model, and both adsorption capacity and adsorption intensity for IBNC are higher than those for TBNC and micro carbon fiber.
文摘目的:探究Meek植皮术联合碳纤维敷料修复大面积烧伤创面的效果。方法:将2018年1月-2020年1月笔者医院就诊的109例大面积烧伤患者随机分为观察组55例和对照组54例,对照组实施小邮票皮片移植术、碳纤维敷料联合修复方案,观察组实施Meek植皮技术、碳纤维敷料联合修复方案。比较两组手术相关指标(手术时间、皮片融合时间、创面愈合时间及住院时间)、植皮情况(供皮面积、植皮面积率及术后2周皮片成活率),比较术前及术后12个月两组生活质量[简明烧伤健康量表(Burn-specific health scale-abbreviated,BSHS-A)评分]、术后12个月瘢痕状况[温哥华瘢痕量表(Vancouver scar scale,VSS)评分],比较两组治疗12个月内并发症发生情况。结果:观察组手术时间、皮片融合时间、创面愈合时间、住院时间均显著短于对照组,差异有统计学意义(P<0.05)。观察组供皮面积、植皮面积率显著低于对照组,差异有统计学意义(P<0.05);观察组术后2周皮片成活率显著高于对照组,差异有统计学意义(P<0.05)。术后12个月,两组BSHS-A评分均较治疗前显著升高,且观察组明显高于同一时间对照组,差异有统计学意义(P<0.05)。术后12个月观察组VSS评分低于对照组,差异有统计学意义(P<0.05)。术后12个月,观察组并发症总发生率显著低于对照组,差异有统计学意义(P<0.05)。结论:Meek植皮术联合碳纤维敷料可对大面积烧伤患者创面产生良好修复效果,有效缩短手术时间及患者恢复时间,改善植皮情况并提高术后成活率,同时相关并发症发生较少,具有较高临床应用价值。
