Eco-friendly and biodegradable novel hydrogel were prepared by blending and solution casting method. The designed hydrogel is based on chitosan/ PEG600/Gurgam with carbon nanofiller along silane crosslinked (TEOS) wit...Eco-friendly and biodegradable novel hydrogel were prepared by blending and solution casting method. The designed hydrogel is based on chitosan/ PEG600/Gurgam with carbon nanofiller along silane crosslinked (TEOS) with pH sensitive response to controlled release of drug in biomedical materials and agriculture industry. The various concentration of carbon nanofiller is used to analyze its effect on the fabricated hydrogel characteristics by using FTIR, SEM, TGA, swelling studies (water, buffer and ionic solution). Spectra of FTIR reflected both established and newly developed groups (like hydrogel). COOH group presence is clearly observed in this range in the carbon filler reinforced hydrogel. The SEM micrographs show that CPG0.003 had a collection of polysaccharide chains as thin helices, which is attributed to the increase in the size of porosity. TGA shows to increase concentration of nanofiller enhanced the thermal stability of the designed hydrogels at temperature 25˚C to 550˚C mass loss percentage decrease upto 20% and increase thermal stability. This pH response made these resultant hydrogels as fruitful competitor against the many reported controlled release application.展开更多
目的:探究重组贻贝粘蛋白水凝胶敷料(Recombined mussel adhesive protein hydrogel dressing,Rmaphd)在点阵CO_(2)激光治疗面部痤疮萎缩性瘢痕术后创面修复中的应用效果。方法:选择2022年6月-2023年2月面部痤疮萎缩性瘢痕患者117例,分...目的:探究重组贻贝粘蛋白水凝胶敷料(Recombined mussel adhesive protein hydrogel dressing,Rmaphd)在点阵CO_(2)激光治疗面部痤疮萎缩性瘢痕术后创面修复中的应用效果。方法:选择2022年6月-2023年2月面部痤疮萎缩性瘢痕患者117例,分为Rmaphd组、重组人表皮生长因子(Recombinant human epidermal growth factor,rhEGF)组和对照组,每组39例,三组均给予点阵CO_(2)激光术治疗,术后分别给予Rmaphd、rhEGF及生理盐水处理,比较三组疗效、ECCA评分、症状持续时间以及生活质量评分。结果:Rmaphd组和rhEGF组总有效率分别为92.31%和94.87%,均高于对照组76.92%(P<0.05),术后ECCA评分低于对照组(P<0.05),术后疼痛、红斑、痂皮持续时间短于对照组(P<0.05),Acne-QoL各指标得分优于对照组(P<0.05);上述各临床Rmaphd组与rhEGF组差异无统计学意义(P>0.05)。结论:Rmaphd用于点阵CO_(2)激光治疗面部痤疮萎缩性瘢痕术后创面修复疗效显著,具备在临床上辅助激光治疗术后修复的应用潜力。展开更多
目的:评价前列腺癌(PCa)图像引导放疗(IGRT)中水凝胶注入后的不良事件(AE)、患者直肠毒性和生活质量(QOL)。方法:筛选2022年10月至2023年3月在我院放疗科接受IGRT的PCa患者70例。采用简单随机分配法将患者均分为注入水凝胶的试验组(n=35...目的:评价前列腺癌(PCa)图像引导放疗(IGRT)中水凝胶注入后的不良事件(AE)、患者直肠毒性和生活质量(QOL)。方法:筛选2022年10月至2023年3月在我院放疗科接受IGRT的PCa患者70例。采用简单随机分配法将患者均分为注入水凝胶的试验组(n=35)和未注入的对照组(n=35)。采用疼痛视觉模拟评分(VAS)和常见不良事件评价标准(CTCAE)5.0评价术后AE。比较两组急性和晚期放射性直肠炎(RP)发生率和QOL评分。结果:试验组水凝胶注入术中和术后6 h VAS分别为(2.31±0.59)分和(1.43±0.47)分,首次大小便后分别为(1.52±0.33)分和(1.10±0.28)分。试验组5.71%和2.86%的患者分别存在严重出血和手术区域感染。试验组8.57%的患者发生了急性Ⅰ级RP,2.86%的患者发生了晚期Ⅰ级RP;对照组28.57%的患者发生了急性Ⅰ级RP,11.43%的患者发生了急性Ⅱ级RP;对照组17.14%的患者发生晚期Ⅰ级RP,5.71%的患者发生晚期Ⅱ级RP。试验组RP发生率低于对照组,水凝胶的注入降低了患者直肠毒性。自IGRT开始后第3周起,试验组QOL评分显著高于对照组(均P<0.05),水凝胶的注入在一定程度上提高了患者QOL。结论:水凝胶在PCa IGRT中应用时安全性较为理想,能够降低患者直肠毒性和在一定程度上提高QOL,具有一定临床应用价值。展开更多
文摘Eco-friendly and biodegradable novel hydrogel were prepared by blending and solution casting method. The designed hydrogel is based on chitosan/ PEG600/Gurgam with carbon nanofiller along silane crosslinked (TEOS) with pH sensitive response to controlled release of drug in biomedical materials and agriculture industry. The various concentration of carbon nanofiller is used to analyze its effect on the fabricated hydrogel characteristics by using FTIR, SEM, TGA, swelling studies (water, buffer and ionic solution). Spectra of FTIR reflected both established and newly developed groups (like hydrogel). COOH group presence is clearly observed in this range in the carbon filler reinforced hydrogel. The SEM micrographs show that CPG0.003 had a collection of polysaccharide chains as thin helices, which is attributed to the increase in the size of porosity. TGA shows to increase concentration of nanofiller enhanced the thermal stability of the designed hydrogels at temperature 25˚C to 550˚C mass loss percentage decrease upto 20% and increase thermal stability. This pH response made these resultant hydrogels as fruitful competitor against the many reported controlled release application.
文摘目的:探究重组贻贝粘蛋白水凝胶敷料(Recombined mussel adhesive protein hydrogel dressing,Rmaphd)在点阵CO_(2)激光治疗面部痤疮萎缩性瘢痕术后创面修复中的应用效果。方法:选择2022年6月-2023年2月面部痤疮萎缩性瘢痕患者117例,分为Rmaphd组、重组人表皮生长因子(Recombinant human epidermal growth factor,rhEGF)组和对照组,每组39例,三组均给予点阵CO_(2)激光术治疗,术后分别给予Rmaphd、rhEGF及生理盐水处理,比较三组疗效、ECCA评分、症状持续时间以及生活质量评分。结果:Rmaphd组和rhEGF组总有效率分别为92.31%和94.87%,均高于对照组76.92%(P<0.05),术后ECCA评分低于对照组(P<0.05),术后疼痛、红斑、痂皮持续时间短于对照组(P<0.05),Acne-QoL各指标得分优于对照组(P<0.05);上述各临床Rmaphd组与rhEGF组差异无统计学意义(P>0.05)。结论:Rmaphd用于点阵CO_(2)激光治疗面部痤疮萎缩性瘢痕术后创面修复疗效显著,具备在临床上辅助激光治疗术后修复的应用潜力。
文摘目的:评价前列腺癌(PCa)图像引导放疗(IGRT)中水凝胶注入后的不良事件(AE)、患者直肠毒性和生活质量(QOL)。方法:筛选2022年10月至2023年3月在我院放疗科接受IGRT的PCa患者70例。采用简单随机分配法将患者均分为注入水凝胶的试验组(n=35)和未注入的对照组(n=35)。采用疼痛视觉模拟评分(VAS)和常见不良事件评价标准(CTCAE)5.0评价术后AE。比较两组急性和晚期放射性直肠炎(RP)发生率和QOL评分。结果:试验组水凝胶注入术中和术后6 h VAS分别为(2.31±0.59)分和(1.43±0.47)分,首次大小便后分别为(1.52±0.33)分和(1.10±0.28)分。试验组5.71%和2.86%的患者分别存在严重出血和手术区域感染。试验组8.57%的患者发生了急性Ⅰ级RP,2.86%的患者发生了晚期Ⅰ级RP;对照组28.57%的患者发生了急性Ⅰ级RP,11.43%的患者发生了急性Ⅱ级RP;对照组17.14%的患者发生晚期Ⅰ级RP,5.71%的患者发生晚期Ⅱ级RP。试验组RP发生率低于对照组,水凝胶的注入降低了患者直肠毒性。自IGRT开始后第3周起,试验组QOL评分显著高于对照组(均P<0.05),水凝胶的注入在一定程度上提高了患者QOL。结论:水凝胶在PCa IGRT中应用时安全性较为理想,能够降低患者直肠毒性和在一定程度上提高QOL,具有一定临床应用价值。
