According to the chemical design, electrorheological properties of supramolecular complex from β-cyclodextrin polymer (β -CDP) were discussed. Six supramolecular complexes of β-cyclodextrin polymer with substituted...According to the chemical design, electrorheological properties of supramolecular complex from β-cyclodextrin polymer (β -CDP) were discussed. Six supramolecular complexes of β-cyclodextrin polymer with substituted salicylic acid and 3-hydroxy-2-naphthoic acid were synthesized by the solid-phase self-assembly method, and their component and structure were characterized by NMR, FT-IR, UV-vis and the fluorescence analysis. Then the electrorheological properties of their suspensions in silicone oil were investigated under DC electric fields. It was found that the yield stresses of these supramolecular complex ER fluids were 7.3–9.8 kPa at 4 kV/mm in DC electric field, which were enhanced by 34%–72% compared with that of pure β-CDP. Among them, that of β-CDP/3-hydroxy-2-naphthoic acid ER fluid was the highest. It was also found that the ER effect of supramolecular complexes can be controlled by changing different guests. When the substituted group is at phenyl ring, ER behavior can be slightly adjusted by the different substituted groups, their number as well as their position at phenyl ring. This can be proved by the measurement of dielectric properties.展开更多
目的探讨阿达帕林凝胶辅助超分子水杨酸、类人胶原蛋白敷料治疗轻中度痤疮患者的效果及对皮肤屏障功能、美容满意度的影响。方法选取我院收治的轻中度痤疮患者123例,按照随机数字表法分为3组,各41例。对照A组采取超分子水杨酸、类人胶...目的探讨阿达帕林凝胶辅助超分子水杨酸、类人胶原蛋白敷料治疗轻中度痤疮患者的效果及对皮肤屏障功能、美容满意度的影响。方法选取我院收治的轻中度痤疮患者123例,按照随机数字表法分为3组,各41例。对照A组采取超分子水杨酸、类人胶原蛋白敷料治疗,对照B组采取阿达帕林凝胶治疗,观察组采用阿达帕林凝胶辅助超分子水杨酸、类人胶原蛋白敷料治疗。比较3组治疗效果、症状改善时间、治疗前后皮损情况、皮肤屏障功能指标[皮肤经皮水丢失(transepidermal water loss,TEWL)、角质层含水量、pH值]、美容满意度及不良反应发生情况。结果观察组总有效率高于对照A组和对照B组(P<0.05),对照A组与对照B组比较差异无统计学意义(P>0.05)。观察组红斑持续时间、疼痛持续时间、结痂时间、痂皮完全脱落时间短于对照A组和对照B组,对照A组短于对照B组(P<0.05)。治疗4周后,3组丘疹、粉刺、脓包、结节囊肿数目少于治疗前,观察组少于对照A组和对照B组,对照A组少于对照B组(P<0.05);3组TEWL、角质层含水量、pH值优于治疗前,观察组优于对照A组和对照B组,对照A组优于对照B组(P<0.05)。观察组美容满意度高于对照A组和对照B组(P<0.05),对照A组与对照B组比较差异无统计学意义(P>0.05)。3组不良反应发生率比较差异无统计学意义(P>0.05)。结论阿达帕林凝胶辅助超分子水杨酸、类人胶原蛋白敷料治疗轻中度痤疮效果显著,患者满意度高,且具有安全性。展开更多
基金This work was supported by the National Namral Science Foundation of China(Grant No.59832090)the National Natural Science Foundation of China for Distinguished Young Scholar(Grant No.50025207)the'863'Foundation(Grant No.2001AA327130).
文摘According to the chemical design, electrorheological properties of supramolecular complex from β-cyclodextrin polymer (β -CDP) were discussed. Six supramolecular complexes of β-cyclodextrin polymer with substituted salicylic acid and 3-hydroxy-2-naphthoic acid were synthesized by the solid-phase self-assembly method, and their component and structure were characterized by NMR, FT-IR, UV-vis and the fluorescence analysis. Then the electrorheological properties of their suspensions in silicone oil were investigated under DC electric fields. It was found that the yield stresses of these supramolecular complex ER fluids were 7.3–9.8 kPa at 4 kV/mm in DC electric field, which were enhanced by 34%–72% compared with that of pure β-CDP. Among them, that of β-CDP/3-hydroxy-2-naphthoic acid ER fluid was the highest. It was also found that the ER effect of supramolecular complexes can be controlled by changing different guests. When the substituted group is at phenyl ring, ER behavior can be slightly adjusted by the different substituted groups, their number as well as their position at phenyl ring. This can be proved by the measurement of dielectric properties.
文摘目的探讨阿达帕林凝胶辅助超分子水杨酸、类人胶原蛋白敷料治疗轻中度痤疮患者的效果及对皮肤屏障功能、美容满意度的影响。方法选取我院收治的轻中度痤疮患者123例,按照随机数字表法分为3组,各41例。对照A组采取超分子水杨酸、类人胶原蛋白敷料治疗,对照B组采取阿达帕林凝胶治疗,观察组采用阿达帕林凝胶辅助超分子水杨酸、类人胶原蛋白敷料治疗。比较3组治疗效果、症状改善时间、治疗前后皮损情况、皮肤屏障功能指标[皮肤经皮水丢失(transepidermal water loss,TEWL)、角质层含水量、pH值]、美容满意度及不良反应发生情况。结果观察组总有效率高于对照A组和对照B组(P<0.05),对照A组与对照B组比较差异无统计学意义(P>0.05)。观察组红斑持续时间、疼痛持续时间、结痂时间、痂皮完全脱落时间短于对照A组和对照B组,对照A组短于对照B组(P<0.05)。治疗4周后,3组丘疹、粉刺、脓包、结节囊肿数目少于治疗前,观察组少于对照A组和对照B组,对照A组少于对照B组(P<0.05);3组TEWL、角质层含水量、pH值优于治疗前,观察组优于对照A组和对照B组,对照A组优于对照B组(P<0.05)。观察组美容满意度高于对照A组和对照B组(P<0.05),对照A组与对照B组比较差异无统计学意义(P>0.05)。3组不良反应发生率比较差异无统计学意义(P>0.05)。结论阿达帕林凝胶辅助超分子水杨酸、类人胶原蛋白敷料治疗轻中度痤疮效果显著,患者满意度高,且具有安全性。
