CN112315828A - 一种具有抗菌活性的干细胞面膜及其制备方法 - Google Patents
一种具有抗菌活性的干细胞面膜及其制备方法 Download PDFInfo
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- Cosmetics (AREA)
Abstract
本发明提供一种具有抗菌活性的干细胞面膜,面膜液中干细胞条件培养基含有的干细胞活性因子具有提高皮肤成纤维细胞的增殖能力,促进皮肤的成纤维细胞合成胶原蛋白的能力,在修复细胞、改善细胞代谢、激活衰老细胞方面具有良好的效果。本发明的面膜液使用亲水性氧化锌量子点为抗菌剂,其对金黄色葡萄球菌和大肠杆菌均有明显的破坏性,处理后的细菌细胞壁皱缩,受损严重;同时对一些食源性病菌体如屎肠球菌、蜡样芽孢杆菌,巨大芽孢杆菌及藤黄微球菌也有明显的抑制作用,抗菌范围较广,有效保证本发明面膜液的保质期。本发明制备方法简便,适合大规模生产。
Description
技术领域
本发明涉及一种具有抗菌活性的干细胞面膜及其制备方法,属于化妆品技术领域。
背景技术
由于人面部表皮干细胞的减少,再生能力降低,表皮细胞的死亡脱落、功能减退等原因,日积月累,皮肤会出现斑点、皱纹增多等衰老的迹象。随着现在经济的发展,关于美容行业也是迎来了长足发展,各种抗衰产品受到广大爱美人士的青睐。面膜是美容保养品的一种载体,其利用覆盖在脸部的短暂时间,暂时隔离外界的空气与污染,提高肌肤温度和扩张毛孔,促进汗腺分泌与新陈代谢,使肌肤含氧量上升。面膜中的水分渗入肌肤角质层,使其变得柔软,增加弹性;面膜中的胶黏性成分或粉状吸附剂能黏附皮肤表面和毛孔中的污垢、代谢废物和过多的油脂等,并将其彻底清除。面膜里的营养性或功效性物质会充分渗透进入皮肤的深层,软化皮肤,增强肌肤弹性,促进毛细血管扩张,清除毛孔的灰尘、化学污染物质、细菌和油脂污垢,加速皮肤深层的血液微循环,增强表皮各层细胞的活力,消除肌肤疲劳、衰老,维持年轻态。根据尼尔森零售研究数据,2012年中国面膜市场销售规模达78.5亿元人民币,连续3年年复合增长率超过21.9%,2014年面膜市场继续疯狂增长,2015年销售额达300亿元以上。
干细胞基于可以分化成不同体细胞以代替衰老死亡机体细胞的增殖分化能力以及可以产生许多生物活性分子的分泌功能而具备抗衰老的能力。大量科学研究表明,间充质干细胞至少分泌免疫调节因子、趋化因子、支持祖细胞的营养因子、血管再生因子、抑制疤痕因子、抗凋亡因子、伤口愈合相关因子、各型胶原蛋白以及各种溶菌酶等。因此,化妆品生产企业在尝试添加干细胞制备抗衰老面膜等美容产品。由于面膜营养丰富,容易滋生微生物,除了使化妆品中的色、香、味发生变化,还会导致人体健康受到危害。而实际生产过程中,通常会添加抗菌药物,添加的抗菌药物绝大多数是有机抗菌剂,有机抗菌剂应用所导致的耐药性问题已经成为新世纪人类面临的巨大挑战。
纳米氧化锌具有成本低,安全无毒,化学性质稳定,易加工成型,具有良好的生物相容性,无毒,无味,对皮肤无刺激性且具有广谱抗菌作用和选择细胞毒性等特点,是一种较理想的抗菌材料。虽然现有技术已经有较为成熟的方法制备纳米氧化锌,然而其制备的纳米氧化锌多为醇溶型纳米氧化锌,水溶不完全、抗菌力不强,难以作为抗菌材料应用于干细胞面膜中。
发明内容
为了解决现有技术中的问题,根据本发明的第一方面,本发明的目的在于提供一种具有抗菌活性的干细胞面膜。
本发明的目的是这样实现的:
一种具有抗菌活性的干细胞面膜,由以下原料及配比制得:干细胞条件培养基15-20%,甘油3-5%,以体积体积百分比计;透明质酸钠0.2-1%,合成蛋清粉0.1-1%,蚕丝蛋白增稠剂1-5%,丁二醇1~5%,玫瑰纯露1~5%,抗菌剂0.2~1.0%,以质量体积百分比计;余量为纯化水。
根据本发明的一个实施方案,所述干细胞条件培养基的干细胞为脐带间充质干细胞;所述透明质酸钠分子量为80-140万。
根据本发明的一个实施方案,所述抗菌剂为亲水性纳米氧化锌颗粒量子点;所述亲水性纳米氧化锌颗粒量子点在深紫外区有吸收,范围为250nm-380nm,其最佳激发波长为365nm。进一步,在最佳激发波长下,本发明所述亲水性纳米氧化锌量子点呈现黄色荧光发射,最强发射峰位于530nm。
根据本发明的一个实施方案,所述亲水性氧化锌量子点的制备方法,采用如下步骤:将乙酸锌,二水用无水乙醇溶解,然后置于冰浴中,滴加溶解有氢氧化钾的乙醇溶液,并不断搅拌以充分反应20~30min,然后将反应液从冰浴中取出置于室温环境,滴加3-氨丙基三乙氧基硅烷(APTES)水溶液,并不断搅拌3~5h,然后在5800~6200rmp离心乳白色浑浊溶液8~12min,弃去上层清液,加入无水乙醇分散并清洗沉淀物,再按照上述离心步骤操作两次,沉淀物置于鼓风干燥箱中于50~70℃下干燥1.5~2.5h,即得本发明所述亲水性氧化锌量子点。
根据本发明的第二方面,本发明提供上述具有抗菌活性的干细胞面膜的制备方法。
上述具有抗菌活性的干细胞面膜的制备方法,包括以下步骤:
1)提供一张面膜纸,并按配方称取各组分;
2)将透明质酸钠、合成蛋清粉、蚕丝蛋白增稠剂、丁二醇、玫瑰纯露和纯化水加入真空乳化锅,搅拌加热至70-80℃,然后继续搅拌5-7分钟,保温20-25分钟后降温至50℃;
3)加入干细胞条件培养基和抗菌剂,真空搅拌均匀,得面膜液;
4)将面膜纸浸入面膜液,充分浸润30-60min,得具有抗菌活性的干细胞面膜。
有益效果:
本发明的面膜液含有干细胞条件培养基,其含有的干细胞活性因子具有提高皮肤成纤维细胞的增殖能力,促进皮肤的成纤维细胞合成胶原蛋白的能力,在修复细胞、改善细胞代谢、激活衰老细胞方面具有良好的效果。本发明的面膜液将水份和其他成份锁定在肌肤表面,为修复细胞组织提供充足水份,且其具有良好的透皮吸收促进作用,促进间充质干细胞因子渗入肌肤,间充质干细胞因子与肌肽协同作用,充分修复和补充受损细胞组织,改善皮肤重建能力,减缓皱纹的产生,使肌肤新生有活力,肤色光亮透晰。本发明的面膜液使用亲水性氧化锌量子点为抗菌剂,其对金黄色葡萄球菌和大肠杆菌均有明显的破坏性,处理后的细菌细胞壁皱缩,受损严重;同时对一些食源性病菌体如屎肠球菌、蜡样芽孢杆菌,巨大芽孢杆菌及藤黄微球菌也有明显的抑制作用,抗菌范围较广,有效保证本发明面膜液的保质期。本发明制备工艺简便,适合大规模生产。
附图说明
图1亲水性氧化锌量子点的紫外-可见光吸收光谱图;
图2亲水性氧化锌量子点的激发和发射光谱图;
图3亲水性氧化锌量子点与商业纳米氧化锌的傅里叶红外图谱对比图,其中1号样品为本发明所制备的亲水性氧化锌量子点,2号样品为对比所使用的一种商业纳米氧化锌(棒状),3号样为对比所使用的另一种商业纳米氧化锌(花状);
图4亲水性氧化锌量子点与商业纳米氧化锌的透过率对比图,其中1号样品为本发明所制备的亲水性氧化锌量子点,2号样品为对比所使用的一种商业纳米氧化锌(棒状),3号样为对比所使用的另一种商业纳米氧化锌(花状);
图5亲水性氧化锌量子点与商业纳米氧化锌的水溶液图像对比图,1号样品为本发明所制备的亲水性氧化锌量子点,2号样品为对比所使用的一种商业纳米氧化锌(棒状),3号样为对比所使用的另一种商业纳米氧化锌(花状);
图6亲水性氧化锌量子点对金黄色葡萄球菌的杀菌统计结果图;
图7亲水性氧化锌量子点对大肠杆菌的杀菌统计结果图;
图8未经亲水性氧化锌量子点处理的金黄色葡萄球菌的表面形貌图;
图9经过亲水性氧化锌量子点处理30分钟后的金黄色葡萄球菌形貌图;
图10未经亲水性氧化锌量子点处理的大肠杆菌的形貌图;
图11经亲水性氧化锌量子点处理30分钟后的大肠杆菌的形貌图;
图12亲水性氧化锌量子点对屎肠球菌、蜡样芽孢杆菌、巨大芽孢杆菌和藤黄球菌的抑菌效果评价结果图;
图13亲水性氧化锌量子点与另外两种商业纳米氧化锌的抗菌性能对比结果图;其中1号样品为本发明所制备的亲水性氧化锌量子点,2号样品为对比所使用的一种商业纳米氧化锌(棒状),3号样为对比所使用的另一种商业纳米氧化锌(花状)。
具体实施方式
下面通过具体实施例对本发明进行具体描述,在此指出以下实施例只用于对本发明进行进一步说明,不能理解为对本发明保护范围的限制,本领域的技术熟练人员可以根据上述发明内容对本发明作出一些非本质的改进和调整。干细胞条件培养基参照王帅帅等的人2013年发表在《中国医药指南》的文章“人脐带血间充质干细胞条件培养基的制备及其生物学特性”进行培养。本发明原料和试剂均为市售产品,其中乙酸锌,二水(Zinc aetatedehydrate,Zn(OAc)2·2H2O),3-氨丙基三乙氧基硅烷((3-aminopropyl)triethoxysilane,APTES)购自阿拉丁;对比所使用的商业氧化锌(纳米氧化锌90±10nm,99.8%metals basis)购买自上海麦克林生化科技有限公司;活/死细胞活力试剂盒(L13152)购自美国Invitrogen公司;活性物质检测试剂盒:过氧化氢检测试剂盒(S0038)、二氢乙锭(S0063)、超氧化物检测试剂盒(S0060)购自碧云天生物技术(上海)有限公司。
实施例1
(一)亲水性氧化锌量子点制备
亲水性氧化锌量子点的合成:取35mM氢氧化钾至于50mL烧杯中,加入20mL无水乙醇搅拌15min直至氢氧化钾完全溶解,放置于4℃下的冰箱中冷藏。将25mM乙酸锌,二水加入盛有150mL无水乙醇的单口烧瓶中,80℃下搅拌回流直至乙酸锌完全溶解(2h左右),随后将混合液置于冰浴中。将氢氧化钾的乙醇溶液逐滴滴加到盛有乙酸锌乙醇溶液的单口烧瓶,并不断搅拌以充分反应30min。此时可观察反应液由澄清变浑浊又逐渐澄清的现象。将反应混合液取出冰浴待其温度回温至室温时,逐滴滴加1.5mL去离子水和500uL3-氨丙基三乙氧基硅烷(APTES)混合溶液,并不断搅拌5h,此时观察溶液由澄清变为乳白色。在6000rmp下离心乳白色浑浊溶液10min,移去上层清液,加入35mL无水乙醇分散并清洗沉淀物,反复上操作两次。将沉淀物置于鼓风干燥箱中60℃下干燥2h,最终得到本发明亲水性氧化锌量子点(ZnO QDs)颗粒(粉末)。
(二)亲水性氧化锌量子点的性质表征
将上述实施例制备的亲水性氧化锌量子点进行性质表征
表征方法
扫描电子显微镜(SEM)
扫描电子显微镜用来观察细菌受损前后的表面状态。将氧化锌-细菌溶液培养30min后,5000rpm离心5min,用2.5%戊二醛在4℃/8h。PBS缓冲液洗涤3次后,分别用20%、40%、60%、80%、100%乙醇依次处理30min,脱水,然后制备样品,进行观察。傅里叶红外光谱仪(FTIR)
傅里叶红外光谱用来分析两种氧化锌的表面基团,仪器型号为:Nicolet iSl0型(美国赛默飞世尔科技公司),测试范围为4000-400cm-1。将氧化锌粉末与溴化钾混合后进行压片,然后放入红外光谱仪进行测量。
紫外可见吸收光谱
吸收光谱用来分析两种氧化锌水溶液的透过率以及相应的吸收特性。以去离子水作为背景基线,测透过时,纯水透过率为100%;测吸收时,纯水吸收系数为0。将两种氧化锌配置成等同浓度的水溶液,每次取2ml置于1cm厚的石英槽中测试即可。仪器型号为:UH-450,透过率范围400-800nm,吸收范围设置为340nm-800nm。
表征结果
图1为ZnO QDs的紫外-可见光吸收光谱,由图1可知ZnO QDs在深紫外区有宽的吸收,其范围由250nm至380nm,其最佳激发波长为365nm。图2为ZnO QDs的激发和发射光谱,图2中虚线展示ZnO QDs具有宽的激发带,其范围由250nm至380nm,其最佳激发波长为365nm。此实验结果与ZnO QDs的紫外-可见光吸收光谱相吻合。在最佳激发波长下,该样品呈现强的宽范围的黄色荧光发射,最强发射峰位于530nm(实线)其可归因于氧化锌量子点的表面缺陷引起的荧光发射。
本发明亲水性氧化锌量子点与商业纳米氧化锌颗粒的性质对比
图3为ZnO QDs的FTIR光谱,由图3可知在3425cm-1处出现宽吸收带,其可归因于N-H的伸缩振动,在2936cm-1的峰可归因于C-H的特征伸缩振动,N-H和C-H弯曲振动峰分别出现在1574cm-1和1405cm-1处,位于1018cm-1的峰是由于Si-O的伸缩振动引起。另外,525cm-1处的峰属于Zn-O的伸缩振动。以上结果表明ZnO QDs被APTES良好修饰。而在2936cm-1,1574cm-1,1405cm-1和1018cm-1处都无任何弯曲振动峰,说明没有任何基团修饰。525cm-1处的峰同属于Zn-O的伸缩振动。由此可见,特殊化学基团的修饰可以使纳米颗粒具备特定部位的振动吸收峰。
图4是本发明亲水性氧化锌量子点与商业纳米氧化锌的透过率对比图,图5是本发明亲水性氧化锌量子点与商业纳米氧化锌的水溶液图像对比图。从图4和图5来看,本发明ZnO QDs的水溶液分别在日光(左)和365nm的紫外灯(右)辐照下的数码照片,日光下ZnOQDs的水分散体是澄清透明的,此结果表明制备的ZnO QDs具有良好的水溶性,并且在UV光照射下,ZnO QDs表现出强的黄色荧光;同时ZnO QDs的水溶液放置一个月之后其荧光强度并没有发生明显下降(实线),表明ZnO QDs在水溶液中具有良好的胶体性和光学稳定性,未有光漂白和光闪烁现象。从图4透过率实验和图5三种溶液肉眼观察可得,亲水性氧化锌量子点比商业纳米氧化锌颗粒水溶性更好,既便于清洗,也更容易后续与其他材料复合。在最佳激发波长365nm下,亲水性氧化锌量子点溶液呈现强的宽范围的黄色荧光发射,而商业化纳米氧化锌溶液呈现蓝紫色荧光发射。
(三)亲水性氧化锌量子点的抗菌实验
将上述实施例制备的亲水性氧化锌量子点进行抗菌实验,包括革兰氏阳性菌和革兰氏阴性菌的抗菌实验。
细菌培养
培养金黄色葡萄球菌S.aureus(CGMCC 1.2465)和大肠杆菌E.coil(CVCC216)时,分别取S.aureus和E.coil的单菌落于20ml的LB培养基中,金葡菌条件为37℃/12h,然后转接1次(1ml于20ml LB培养基之中),继续培养3h,得到浓度为109cfu/ml;大肠杆菌条件为37℃/8h,浓度为109cfu/ml。同样涉及的食源性病菌体也是按照相应操作在培养基中生长至特定浓度供使用。
氧化锌对细菌的灭活操作
本发明亲水性氧化锌量子点和商业纳米氧化锌对细菌灭活的操作相同,具体细节如下:(a)分别配制不同浓度的氧化锌水溶液,体积为10ml,浓度依次为0.001、0.01、0.1、0.5和1mg/ml。(b)同时将上述两种浓度为109cfu/ml的细菌,依次取若干3ml的离心管,依次加入1ml的细菌悬浮液,然后5000r/min离心5min。(c)去除上清液,收集沉淀,依次与10ml的不同的浓度的氧化锌溶液互相混合,此时细菌浓度为108cfu/ml,共同室温下培养30min,然后立即5000r/min离心5min,去除上清液,并用去离子水清洗2遍,最后加入1ml水,使沉淀重新分散成悬浊液(实验组)。以10ml的去离子水与细菌混合培养30min作为空白对照组,每个氧化锌-细菌混合培养均设置3个平行对照。(d)将(c)中的最后的悬浮液,依次取100ul加入到900ul的去离子水中,梯度稀释,然后采用稀释平板法,均匀涂板,置于鼓风干燥箱,在条件37℃下培养12h后计数。
氧化锌量子点的活性氧检测
配置不同浓度的亲水性氧化锌量子点溶液(0.4mg/mL,0.8mg/mL,1.2mg/mL,1.6mg/mL,2.0mg/mL),分别作用于蜡样芽孢杆菌、大地懒杆菌和屎肠球细杆菌,然后收集细菌悬液,设定空白对照孔,约按5-10万个细胞/毫升的比例加入96孔板之后用超氧化物检测工作液悬浮细胞,37℃孵育3分钟。接着依次加入过氧化氢检测试剂(S0038)、二氢乙锭(S0063)和超氧化物检测试剂(S0060),在450nm测定吸光度得到检测数值。数据表示为平均标准差(n=3、6或8)。统计分析采用GraphPad Prism 5.0软件。p<0.05被认为具有统计学意义。
抗菌结果
将亲水性氧化锌量子点分别配制不同浓度的氧化锌水溶液,体积为10ml,浓度依次为0.001、0.01、0.1、0.5和1mg/ml。分别作用于细菌浓度为108cfu/ml的金黄色葡萄球菌和大肠杆菌30min,以去离子水做对照,然后稀释后涂平板于37℃下培养12h后计数。本发明亲水性氧化锌量子点对金黄色葡萄球菌的杀菌统计结果如图6所示,从图6可知,对于金黄色葡萄球菌,从0.001g/L开始抑制50%以上细菌生长,随着浓度增加,抑菌效果增强。从0.1g/L开始几乎没有细菌生长。因此,0.1g/L~1g/L对金葡杀菌效果明显。本发明亲水性氧化锌量子点对大肠杆菌的杀菌统计结果如图7所示,从图7可知,对大肠杆菌,0.5g/L以上可抑制50%以上细菌生长,随着浓度增加,抑菌效果增强,并且抑菌效果可持续长时间,适合护肤领域。
未经氧化锌量子点处理的金黄色葡萄球菌的表面形貌照片如图8所示;经过氧化锌量子点处理30分钟后的金黄色葡萄球菌形貌照片如图9所示;未经氧化锌量子点处理的大肠杆菌的形貌照片如图10所示;经氧化锌量子点处理30分钟后的大肠杆菌的形貌照片如图11所示。对比图8-11,在电镜下可明显观察到亲水性氧化锌量子点对金黄色葡萄球菌和大肠杆菌均有明显的破坏性,处理后的细菌细胞壁皱缩,受损严重。
分别用0.1g/L、0.3g/L、0.5g/L、1.0.g/L及2.0g/L的亲水性氧化锌量子点作用于屎肠球菌、蜡样芽孢杆菌,巨大芽孢杆菌及藤黄微球菌,在48h后检测细菌相对数量,检测结果如图12所示,说明ZnO QDs对一些食源性病菌体也有明显的抑制作用,表现出较广的抗菌范围和较长的抗菌时间。
亲水性氧化锌量子点与商业纳米氧化锌的抗菌对比
将亲水性氧化锌量子点分别配制不同浓度的氧化锌水溶液,体积为10ml,浓度依次为0.001、0.01、0.1、0.5和1mg/ml。分别作用于细菌浓度为108cfu/ml的金黄色葡萄球菌和大肠杆菌30min,以去离子水做对照,然后稀释后涂平板于37℃下培养12h后计数。发现0.1g/L~1g/L对金葡杀菌效果明显;0.5g/L以上对大肠杆菌杀灭效果明显,抑菌效果可持续长时间,适合护肤领域。用0.5g/L的亲水性氧化锌量子点与其他两种商业纳米氧化锌颗粒分别作用于金黄色葡萄球菌,处理后的细菌计数结果如图13所示,发现亲水性氧化锌量子点可以抑制细菌生长1.5个滴度,而所有商业纳米氧化锌抑制细菌生长远不到0.5个滴度。证明亲水性氧化锌的抑菌能力远远强于商业化纳米氧化锌。
实施例2
本发明具有抗菌活性的干细胞面膜的制备方法,包括以下步骤:
1)提供一张面膜纸,并按配方称取各组分:干细胞条件培养基20%(体积/体积),分子量为140万的透明质酸钠0.2%(质量/体积),合成蛋清粉0.1%(质量/体积),蚕丝蛋白增稠剂(黄原胶)2%(质量/体积),丁二醇1%(质量/体积),玫瑰纯露1%(质量/体积),甘油3%(体积/体积),实施例1制备的亲水性氧化锌量子点0.4%(质量/体积),余量为纯化水;
2)将容量瓶清洗干净,接纯水,121℃,高压蒸汽灭菌30min;将干细胞条件培养基(含有干细胞活性因子溶液)使用100μm细胞筛过滤,然后进行细菌、真菌和内毒素检测,检测合格(细菌/真菌不得检出,内毒素低于0.5U/ml)后2-8℃保存备用;
3)对步骤1)的各组分进行细菌、真菌和内毒素检测,将检测合格(细菌/真菌不得检出,内毒素低于0.5U/ml)的透明质酸钠、合成蛋清粉、蚕丝蛋白增稠剂、丁二醇、甘油、玫瑰纯露和纯化水加入真空乳化锅,搅拌加热至70℃,然后继续搅拌7分钟,保温25分钟后降温至50℃;
4)加入将检测合格(细菌/真菌不得检出,内毒素低于0.5U/ml)的干细胞条件培养基和实施例1制备的亲水性氧化锌量子点,真空搅拌均匀,得面膜液,2-8℃保存;
5)将面膜纸浸入面膜液,充分浸润60min,得具有抗菌活性的干细胞面膜,然后再进行检测(细菌/真菌不得检出、内毒素低于0.5U/ml),检测合格后按照25mL/片分装,分装后清点入库,-20℃保存。
实施例3
本发明具有抗菌活性的干细胞面膜的制备方法,包括以下步骤:
1)提供一张面膜纸,并按配方称取各组分:干细胞条件培养基15%(体积/体积),分子量为80万的透明质酸钠1%(质量/体积),合成蛋清粉1%(质量/体积),蚕丝蛋白增稠剂(黄原胶)1%(质量/体积),丁二醇5%(质量/体积),玫瑰纯露3%(质量/体积),甘油5%(体积/体积),实施例1制备的亲水性氧化锌量子点1%(质量/体积),余量为纯化水;
2)将容量瓶清洗干净,接纯水,121℃,高压蒸汽灭菌30min;将干细胞条件培养基(含有干细胞活性因子溶液)使用100μm细胞筛过滤,然后进行细菌、真菌和内毒素检测,检测合格(细菌/真菌不得检出,内毒素低于0.5U/ml)后2-8℃保存备用;
3)对步骤1)的各组分进行细菌、真菌和内毒素检测,将检测合格(细菌/真菌不得检出,内毒素低于0.5U/ml)的透明质酸钠,合成蛋清粉,蚕丝蛋白增稠剂,丁二醇,甘油,玫瑰纯露和纯化水加入真空乳化锅,搅拌加热至80℃,然后继续搅拌5分钟,保温20分钟后降温至50℃;
4)加入将检测合格(细菌/真菌不得检出,内毒素低于0.5U/ml)的干细胞条件培养基和实施例1制备的亲水性氧化锌量子点,真空搅拌均匀,得面膜液,2-8℃保存;
5)将面膜纸浸入面膜液,充分浸润30min,得具有抗菌活性的干细胞面膜,然后再进行检测(细菌/真菌不得检出、内毒素低于0.5U/ml),检测合格后按照25mL/片分装,分装后清点入库,-20℃保存。
Claims (10)
1.一种具有抗菌活性的干细胞面膜,由以下原料及配比制得:干细胞条件培养基15-20%,甘油3-5%,以体积体积百分比计;透明质酸钠0.2-1%,合成蛋清粉0.1-1%,蚕丝蛋白增稠剂1-5%,丁二醇1~5%,玫瑰纯露1~5%,抗菌剂0.2~1.0%,以质量体积百分比计;余量为纯化水。
2.如权利要求1所述的面膜,其特征在于:所述干细胞条件培养基的干细胞为脐带间充质干细胞。
3.如权利要求1所述的面膜,其特征在于:所述透明质酸钠分子量为80-140万。
4.如权利要求1-3任一项所述的面膜,其特征在于:所述抗菌剂为亲水性纳米氧化锌颗粒量子点。
5.如权利要求4所述的面膜,其特征在于:所述亲水性纳米氧化锌颗粒量子点在深紫外区有吸收,范围为250nm-380nm。
6.如权利要求5所述的面膜,其特征在于:所述亲水性纳米氧化锌颗粒量子点最佳激发波长为365nm。
7.如权利要求6所述的面膜,其特征在于:所述亲水性纳米氧化锌量子点呈现黄色荧光发射。
8.如权利要求7所述的面膜,其特征在于:所述亲水性纳米氧化锌量子点最强发射峰位于530nm。
9.如权利要求5-8任一项所述的面膜,其特征在于,所述亲水性氧化锌量子点的制备方法,采用如下步骤:将乙酸锌,二水用无水乙醇溶解,然后置于冰浴中,滴加溶解有氢氧化钾的乙醇溶液,并不断搅拌以充分反应20~30min,然后将反应液从冰浴中取出置于室温环境,滴加3-氨丙基三乙氧基硅烷(APTES)水溶液,并不断搅拌3~5h,然后在5800~6200rmp离心乳白色浑浊溶液8~12min,弃去上层清液,加入无水乙醇分散并清洗沉淀物,再按照上述离心步骤操作两次,沉淀物置于鼓风干燥箱中于50~70℃下干燥1.5~2.5h,即得本发明亲水性氧化锌量子点。
10.如权利要求1-9任一项所述具有抗菌活性的干细胞面膜的制备方法,包括以下步骤:
1)提供一张面膜纸,并按配方称取各组分;
2)将透明质酸钠、合成蛋清粉、蚕丝蛋白增稠剂、丁二醇、甘油、玫瑰纯露和纯化水加入真空乳化锅,搅拌加热至70-80℃,然后继续搅拌5-7分钟,保温20-25分钟后降温至50℃;
3)加入干细胞条件培养基和抗菌剂,真空搅拌均匀,得面膜液;
4)将面膜纸浸入面膜液,充分浸润30-60min,得具有抗菌活性的干细胞面膜。
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