CN109453197A - 一种基于银纳米簇与壳聚糖抗菌制剂的合成方法 - Google Patents

一种基于银纳米簇与壳聚糖抗菌制剂的合成方法 Download PDF

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CN109453197A
CN109453197A CN201811566002.1A CN201811566002A CN109453197A CN 109453197 A CN109453197 A CN 109453197A CN 201811566002 A CN201811566002 A CN 201811566002A CN 109453197 A CN109453197 A CN 109453197A
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silver
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吴晓红
崔逸
郑萍
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Jiangsu Institute of Economic and Trade Technology
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Abstract

本发明公开了一种基于银纳米簇与壳聚糖抗菌制剂的合成方法。本发明通过谷胱甘肽、蛋白质和Ag+合成所制得的银纳米簇,与壳聚糖合成制备成抗菌制剂,具有优良的生物相容性、渗透性好、杀菌效果好等特点。壳聚糖可以抑制银纳米簇的聚集,并可以形成均匀的表面银纳米簇涂层,因此能够控制银离子的释放,保持良好抗菌效果的同时可以减少材料的毒性,抵抗细菌粘附并提高杀菌性能。本发明的银纳米簇与壳聚糖抗菌制剂可作为新抗菌剂或抗菌包装材料的高效伤口敷料,因此作为高度有效的抗微生物制剂具有很好的生物医学应用前景。本发明相关制剂毒性低、抗菌效果好,制备方法简便易行。

Description

一种基于银纳米簇与壳聚糖抗菌制剂的合成方法
技术领域
本发明涉及一种基于银纳米簇与壳聚糖抗菌制剂的合成方法。具体涉及谷胱甘肽、蛋白质和Ag+合成所制得的银纳米簇,与壳聚糖合成抗菌制剂的合成方法。
背景技术
杀菌剂和抗生素的滥用,导致细菌的耐药性以及超级细菌的出现和蔓延,这一问题近年来备受关注。现在很多抗菌药物具有很大刺激性和比较高的毒性,探索设计制备新型的、安全性高、成本低、具有有效杀菌效果抗菌制剂已经迫在眉睫。抗菌材料应是生物相容好并具有高性能生物活性,它可以强烈抵抗细菌粘附并防止细菌生物膜的形成以此来杀灭细菌。现在纳米技术发展迅速,一些相关贵金属材料,特别是纳米银颗粒,因其可以容易附着到细菌膜上并破坏其完整性,具有很好的杀菌效果,已经吸引了越来越多的生物医学界有关抗菌生物制剂领域专家学者的强烈关注。
银纳米簇可以容易地在创伤表面形成抗菌涂层,可以大大提高杀菌活性,表现出很强的杀菌作用,并且具有良好的生物相容性。然而,银纳米颗粒的团聚减少了银纳米颗粒与细菌接触的可能性,所以降低了银纳米颗粒的杀菌效果,银团簇中银离子的释放不可控和细菌的附着使银纳米簇的团聚,大大降低了银纳米簇的抗菌功效。因此,高度分散的银纳米簇是最有前途的抗菌纳米材料,但是现在仍然很难找到比较好的合成方法来制备具有优良抗菌的银纳米材料。基于以上考虑,我们开始探索可以控制银颗粒的大小、形状、表面性质和聚合度的方法,以此实现良好的抗菌作用。利用生物相容性好的聚合物与银纳米簇结合,以此控制银离子释放、表面电荷及分散状态,这样可以使银纳米簇表现出理想的生物活性和优良的抗菌效果。
发明内容
发明目的:本发明提供了一种基于银纳米簇与壳聚糖抗菌制剂的合成方法。
技术方案:针对目前现有技术的缺陷,本发明提供了一种基于银纳米簇与壳聚糖抗菌制剂的合成方法。
1.一种基于银纳米簇与壳聚糖抗菌制剂的合成方法,其特征在于由如下步骤制得:
(1)0.01-1.0 mmol/L银试剂与浓度为0.1-100mmol/L的蛋白质/谷胱甘肽的混合溶液,逐滴滴加进行络合,直到溶液恰好澄清为止;其中蛋白质/谷胱甘肽的混合溶液为蛋白质和谷胱甘肽按质量比5:1~1:5混合获得,制备得到产品A。
(2)将制得的产品A,与质量浓度为0.001-100g/mL的壳聚糖相混合,在温度30~80℃反应1~5天;所得产物用去离子水多次离心洗涤,获得相应产品。
2. 根据权利要求1所述的一种基于银纳米簇与壳聚糖抗菌制剂的合成方法,其特征在于由如下步骤(1)所述的银试剂是银氨溶液、硝酸银溶液中的一种或者二种的混合溶液。
3. 根据权利要求1所述的一种基于银纳米簇与壳聚糖抗菌制剂的合成方法,其特征在于由如下步骤(1)所述的蛋白质是血红蛋白、小牛血清蛋白、白蛋白、免疫球蛋白中的一种或者二种的混合溶液。
有益效果:
本发明通过谷胱甘肽、蛋白质和Ag+合成所制得的银纳米簇,与壳聚糖合成制备成抗菌制剂,具有优良的生物相容性、渗透性好、杀菌效果好。壳聚糖可以抑制银纳米簇的聚集,并可以形成均匀的表面银纳米簇涂层,因此能够控制银离子的释放,保持良好抗菌效果的同时可以减少材料的毒性,可以抵抗细菌粘附并提高杀菌性能。本发明的银纳米簇与壳聚糖抗菌制剂可作为新抗菌剂或抗菌包装材料的高效伤口敷料,因此作为高度有效的抗微生物制剂具有很好的生物医学应用前景。
附图说明
图1是本发明实施例1实验组TEM结果图。
具体实施方式
实施例1
0.01mmol/L银试剂与浓度为0.1mmol/L的蛋白质/谷胱甘肽的混合溶液,逐滴滴加进行络合,直到溶液恰好澄清为止;其中蛋白质/谷胱甘肽的混合溶液为蛋白质和谷胱甘肽按质量比1:1混合获得,制备得到产品A。
将制得的产品A,与质量浓度为1g/mL的壳聚糖相混合,在温度40℃反应1天,所得产物用去离子水多次离心洗涤,获得相应产品。本发明所得产品用电子透射电镜(TEM)表征结果见图1。
所述的银试剂为银氨溶液。
实施例2
0.01mmol/L银试剂与浓度为0.1mmol/L的蛋白质/谷胱甘肽的混合溶液,逐滴滴加进行络合,直到溶液恰好澄清为止;其中蛋白质/谷胱甘肽的混合溶液为蛋白质和谷胱甘肽按质量比1:1混合获得,制备得到产品A。
将制得的产品A,与质量浓度为1g/mL的壳聚糖相混合,在温度40℃反应1天。所得产物用去离子水多次离心洗涤,获得相应产品。
所述的银试剂为硝酸银溶液。
实施例3
0.01mmol/L银试剂与浓度为0.1mmol/L的蛋白质/谷胱甘肽的混合溶液,逐滴滴加进行络合,直到溶液恰好澄清为止;其中蛋白质/谷胱甘肽的混合溶液为蛋白质和谷胱甘肽按质量比1:1混合获得,制备得到产品A。
将制得的产品A,与质量浓度为1g/mL的壳聚糖相混合,在温度40℃反应1天。所得产物用去离子水多次离心洗涤,获得相应产品。
所述的银试剂为硝酸银溶液和银氨溶液物质的量比为1:1。
实施例4
0.1mmol/L银试剂与浓度为1.0mmol/L的蛋白质/谷胱甘肽的混合溶液,逐滴滴加进行络合,直到溶液恰好澄清为止;其中蛋白质/谷胱甘肽的混合溶液为蛋白质和谷胱甘肽按质量比1:1混合获得,制备得到产品A。
将制得的产品A,与质量浓度为1g/mL的壳聚糖相混合,在温度40℃反应1天。所得产物用去离子水多次离心洗涤,获得相应产品。
所述的银试剂为银氨溶液。
实施例5
0.1mmol/L银试剂与浓度为1.0mmol/L的蛋白质/谷胱甘肽的混合溶液,逐滴滴加进行络合,直到溶液恰好澄清为止;其中蛋白质/谷胱甘肽的混合溶液为蛋白质和谷胱甘肽按质量比1:1混合获得,制备得到产品A。
将制得的产品A,与质量浓度为1g/mL的壳聚糖相混合,在温度40℃反应1天。所得产物用去离子水多次离心洗涤,获得相应产品。
所述的银试剂为硝酸银溶液。
实施例6
0.1mmol/L银试剂与浓度为1.0mmol/L的蛋白质/谷胱甘肽的混合溶液,逐滴滴加进行络合,直到溶液恰好澄清为止;其中蛋白质/谷胱甘肽的混合溶液为蛋白质和谷胱甘肽按质量比1:1混合获得,制备得到产品A。
将制得的产品A,与质量浓度为1g/mL的壳聚糖相混合,在温度40℃反应1天。所得产物用去离子水多次离心洗涤,获得相应产品。
所述的银试剂为硝酸银溶液和银氨溶液物质的量比为1:1。
以上所述仅是本发明的优选实施方式,应当指出:对于本技术领域的技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。

Claims (3)

1.一种基于银纳米簇与壳聚糖抗菌制剂的合成方法,其特征在于由如下步骤制得:
(1)0.01-1.0 mmol/L银试剂与浓度为0.1-100mmol/L的蛋白质/谷胱甘肽的混合溶液,逐滴滴加进行络合,直到溶液恰好澄清为止;其中蛋白质/谷胱甘肽的混合溶液为蛋白质和谷胱甘肽按质量比5:1~1:5混合获得,制备得到产品A;
(2)将制得的产品A,与质量浓度为0.001-100g/mL的壳聚糖相混合,在温度30~80℃反应1~5天;所得产物用去离子水多次离心洗涤,获得相应产品。
2.根据权利要求1(1)中所述的银试剂是银氨溶液、硝酸银溶液中的一种或者二种的混合溶液。
3.根据权利要求1(1)中所述的蛋白质是血红蛋白、小牛血清蛋白、白蛋白、免疫球蛋白中的一种或者二种的混合溶液。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111035801A (zh) * 2020-01-14 2020-04-21 青岛科技大学 银纳米团簇基壳聚糖水凝胶敷料及其制备方法和应用
CN114533947A (zh) * 2022-02-22 2022-05-27 湖南科技大学 一种具有抗菌活性和加速伤口愈合能力的碳基双金属纳米簇的制备方法及应用

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111035801A (zh) * 2020-01-14 2020-04-21 青岛科技大学 银纳米团簇基壳聚糖水凝胶敷料及其制备方法和应用
CN111035801B (zh) * 2020-01-14 2022-01-14 青岛科技大学 银纳米团簇基壳聚糖水凝胶敷料及其制备方法和应用
CN114533947A (zh) * 2022-02-22 2022-05-27 湖南科技大学 一种具有抗菌活性和加速伤口愈合能力的碳基双金属纳米簇的制备方法及应用
CN114533947B (zh) * 2022-02-22 2022-11-01 湖南科技大学 一种具有抗菌活性和加速伤口愈合能力的碳基双金属纳米簇的制备方法及应用

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