CN114224771A - 一种免洗洗手液及其制备方法 - Google Patents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/64—Proteins; Peptides; Derivatives or degradation products thereof
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Abstract
本发明提供了一种免洗洗手液及其制备方法。本发明提供的免洗洗手液含有多肽TG‑28,其能够特异性地与SARS‑CoV‑2S蛋白结合,并且能够有效的阻断S蛋白与ACE2蛋白的结合,不与ACE2作用,能有效抑制新型冠状病毒。本发明的免洗洗手液挥发性快,具保湿功能;性能温和,无刺激性;具体成分简单,可以持续抑制新型冠状病毒并且对手部具有护理作用,同时又可以达到环保免洗的效果,节约水资源、绿色环保。而且本发明提供的制备方法为冷配工艺,无需加热,更加节能环保,生产更简单,适合工业化生产。
Description
技术领域
本发明涉及日用化学品技术领域,具体涉及一种免洗洗手液及其制备方法。
背景技术
新冠病毒(severe actue respiratory syndrome coronavirus,SARS-CoV-2)是具有包膜的正链RNA病毒,属于冠状病毒β属,其感染引起的肺炎被世界卫生组织命名为COVID-19。目前,新冠病毒来源尚未阐明,是否存在跨种传播也有待明确。根据现有的临床资料,新型冠状病毒感染的肺炎可以确定的传播途径包括呼吸道飞沫传播和接触传播。经呼吸道飞沫传播,如患者打喷嚏、咳嗽、说话的飞沫,呼出气体近距离接触,可导致该病持续传播,或患者打喷嚏、咳嗽、说话的飞沫混合在空气中,形成气溶胶,被他人吸入后也可导致感染;另外若飞沫沉积在物品表面,可通过直接接触污染人的手,污染的手再接触口腔、鼻腔、眼睛等粘膜,如挖鼻孔、揉眼睛等,也可导致感染,从而进行传播,因此做好手的消毒工作是防止感染的重要措施。手消毒剂的使用可以清除或者抑制手部残留新型冠状病毒,并且减少受感染风险。
目前常用的消毒剂乙醇,其含量在60%-80%之间,长期使用高浓度的乙醇含量容易对皮肤造成损害。乙醇挥发会带走皮肤上的大量水分,造成皮肤缺水,引起皮痒,皮干,甚至会引起脱皮。
发明内容
本发明的目的在于,针对现有技术的上述不足,本申请的发明人通过深入研究,发现多肽TG-28能够抑制新冠病毒S蛋白和ACE2结合,从而可以用来预防和/或治疗新冠病毒感染,并基于此完成了本申请。
为实现上述目的,本发明采用如下的技术方案:
本发明第一方面提供了一种免洗洗手液,所述免洗洗手液包括多肽TG-28,其中多肽TG-28的氨基酸序列如SEQ ID NO.1所示。
进一步的,所述多肽TG-28为乙酰基修饰的多肽TG-28。
进一步的,所述乙酰基修饰为C端修饰。
本发明还提供上述免洗洗手液的制备方法,包括以下步骤:包括以下步骤:
S1、将多肽TG-28加入到蒸馏水中,震荡混匀,得到母液多肽TG-28;
S2、将按预设质量份数的母液多肽TG-28,甘油、增稠剂和水震荡混匀,制得本品,甘油、增稠剂和水震荡混匀,制得本品。
进一步的,步骤S2中,所述预设质量份数为母液多肽TG-28 1~2份、甘油8~9份和增稠剂0.02~5份和水80~90份。
进一步的,所述多肽TG-28的纯度不低于95%。
进一步的,所述母液多肽TG-28的浓度1-50mg/mL。
进一步的,所述母液多肽TG-28的浓度为10mg/mL。
进一步的,所述增稠剂包括卡波940、卡波980NF、卡波2020和卡波941中任一种或多种。
本发明提供的技术方案带来的有益效果是:
本发明提供的免洗洗手液含有多肽TG-28,其能够特异性地与SARS-CoV-2S蛋白结合,并且能够有效的阻断S蛋白与ACE2蛋白的结合,不与ACE2作用,能有效抑制新型冠状病毒。本发明的免洗洗手液挥发性快,具保湿功能;性能温和,无刺激性;具体成分简单,可以持续抑制新型冠状病毒并且对手部具有护理作用,同时又可以达到环保免洗的效果,节约水资源、绿色环保。而且本发明提供的制备方法为冷配工艺,无需加热,更加节能环保,生产更简单,适合工业化生产。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面结合具体实施例,对本发明的具体实施方式作进一步详细描述。
实施例1:
1、多肽TG-28的合成
TG-18多肽通过Fmoc固相合成法获得,所述TG-18多肽通过Fmoc固相合成法获得,具体过程为:从C端至N端方向进行,首先将C端第一个氨基酸即Fmoc Asn OH激活、偶联到CTC树脂,然后将保护基团Fmoc去保护得到X Asn+CTC树脂;再将C端第二个氨基酸即FmocSer OH激活、偶联;按照这个程序依次从C端接入氨基酸,直至最后一个氨基酸;加入乙酸酐,用DMF洗涤3次,再用甲醇洗涤,置氮气干燥器内过夜干燥;将干燥后的树脂加入含有TIPS的TFA切割液进行切割;过滤后于滤液中加入冰乙醚对TG-18进行沉淀,并置于旋转蒸发仪旋蒸后获得TG-28;加水溶解TG-28后,通过高效液相的C18柱,其流动相A:0.1%TFA+水;流动相B:0.075%TFA+乙腈,分离、纯化,冷冻干燥后,LC-MS/MS鉴定分析,获得C端乙酰化、纯度95%以上的多肽TG-28。
2、母液多肽TG-28配制
取10mg的多肽TG-28加入到1mL的蒸馏水中,震荡混匀,制得母液,其浓度为10mg/mL。放于-80℃冻存,配置免洗消毒凝胶时将上述成分按照质量份数进行配置、震荡混匀。
3、免洗洗手液制备
取母液多肽TG-28 1份,甘油9份,增稠剂0.02份,蒸馏水90份组成。将上述成分按照质量份数进行配置、震荡混匀,制得本品。
以上所述增稠剂为卡波940。
实施例2
取实施例1制备的母液多肽TG-28 2份,甘油8份,增稠剂0.02份,蒸馏水90份组成。将上述成分按照质量份数进行配置、震荡混匀,制得本品。
以上所述增稠剂为卡波940。
对实施例1和实施例2进行抑制新型冠状病毒效果验证和溶血活性评价
(1)新冠病毒假病毒侵染细胞实验。将非洲绿猴肾细胞(Vero-E6)均匀铺至孔板中,待细胞生长至80%开始进行实验,细胞培养使用常规完全培养基。将相同浓度的新型冠状病毒与免洗洗手液孵育10分钟,将孵育后病毒假入孔中,随后正常培养48小时候,通过qPCR检测病毒浓度。加入病毒进入细胞存活越少,说明药物效果越好。其中阳性对照为20μMTG-28、阴性对照为相同体积生理盐水。
实验结果显示含TG-28免洗洗手液成浓度依赖性阻止病毒进入细胞,起到保护作用。具体结果如表1所示:
表1
(2)溶血活性测定
阿什液(Alsever Solution)的制备:
2.0g柠檬酸钠,5.12g glucose,0.137g柠檬酸,1.05g NaCl,加去离子水至250ml,调整pH至6.1,高压灭菌后4℃保存备用。
把采集的血液与阿什液按照1:1的比例混合,1000rpm离心5min弃去上清液,用生理盐水重复洗涤红细胞3次,直到上清液中不再出现红色为止。
用生理盐水把上述洗涤好的红细胞的密度稀释调整为107-108个/ml,同时将待测样品配制成不同的梯度浓度,将二者放置于37℃恒温中共孵育30min,随后1000rpm离心5min,用酶标仪检测上清液540nm的光吸收值。该实验中生理盐水作为阴性对照,相同体积的Triton X-100(10%)作为阳性对照,溶血活性则与540nm处的光吸收值成正比。
结果显示,实施例1和实施例2与生理盐水组比较并无差异(检测结果显示各种OD540分别为实施例1为0.045,实施例2为0.048,生理盐水为0.045),这表明本发明的含TG-28免洗洗手液对动物血红细胞无溶血作用,含TG-28免洗洗手液成分安全无毒。
序列表
在不冲突的情况下,本文中上述实施例及实施例中的特征可以相互结合。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
序列表
<110> 苏州佩德生物医药有限公司
<120> 一种免洗洗手液及其制备方法
<141> 2021-12-23
<160> 1
<170> SIPOSequenceListing 1.0
<210> 1
<211> 11
<212> PRT
<213> Artificial Sequence
<400> 1
Tyr His Thr Pro Glu Lys Asp Thr Ser Phe Val
1 5 10
Claims (9)
1.一种免洗洗手液,其特征在于:所述免洗洗手液包括多肽TG-28,其中多肽TG-28的氨基酸序列如SEQ ID NO.1所示。
2.如权利要求1所述的一种免洗洗手液,其特征在于:所述多肽TG-28为乙酰基修饰的多肽TG-28。
3.如权利要求2所述的一种免洗洗手液,其特征在于:所述乙酰基修饰为C端修饰。
4.如权利要求1-3任一项所述的免洗洗手液的制备方法,其特征在于:包括以下步骤:
S1、将多肽TG-28加入到蒸馏水中,震荡混匀,得到母液多肽TG-28;
S2、将按预设质量份数的母液多肽TG-28,甘油、增稠剂和水震荡混匀,制得本品。
5.如权利要求4所述的制备方法,其特征在于:步骤S2中,所述预设质量份数为母液多肽TG-28 1~2份、甘油8~9份和增稠剂0.02~5份和水80~90份。
6.如权利要求4所述的制备方法,其特征在于:所述多肽TG-28的纯度不低于95%。
7.如权利要求4所述的制备方法,其特征在于:所述母液多肽TG-28的浓度为1-50mg/mL。
8.如权利要求7所述的制备方法,其特征在于:所述母液多肽TG-28的浓度为10mg/mL。
9.如权利要求4所述的制备方法,其特征在于:所述增稠剂包括卡波940、卡波980NF、卡波2020和卡波941中任一种或多种。
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