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2024, 01, v.52 359-370
凹凸棒石在生物医学领域中的应用研究进展
基金项目(Foundation): 2023年中南大学创新驱动计划(2023CXQD002); 国家自然科学基金青年项目(82301063); 南京南欣医药技术研究院横向(738010434); 长沙市科技计划(杰出创新青年培养计划,kq2106016)
邮箱(Email): zhangchenyang@csu.edu.cn;
DOI: 10.14062/j.issn.0454-5648.20230419
摘要:

凹凸棒石是一种具有2:1型链层状结构的硅酸盐黏土矿物,针棒状的晶体长度约为0.5~5.0μm,是一种不可再生的天然纳米材料。凹凸棒石特殊的结构赋予了它优异的吸附性,胶体性等性质。凹凸棒石作为绿色的天然矿物材料,具有良好的生物相容性,并且储量丰富,价格低廉,所以在生物医药领域有着广泛的应用潜力。本文综述了凹凸棒石在生物抗菌、药物输送、骨组织工程、伤口敷料等方面的应用研究进展,并对其未来的应用前景进行了展望。本文对于凹凸棒石的生物医学应用研究具有重要的参考价值。

Abstract:

Attapulgite is a rod like silicate clay minerals with a 2:1 type chain layered nanostructure, and the length of rod crystal is 0.5–5.0 μm. It is a non-renewable natural nanomaterial. The layered crystal structure of the attapulgite chain endows it with special physical and chemical properties, including adsorption, colloidal, and cation exchange properties. Attapulgite is widely used in agriculture, environmental protection, chemical industry, and other fields due to its superior properties. The breakthrough in key common technologies for the dissociation of crystal beams in palygorskite rods enables the expansion of palygorskite from conventional applications to high-tech applications. Attapulgite as a non-toxic natural mineral material has good biocompatibility, abundant reserves, and low price. It has an enormous application potential in the field of high value-added biopharmaceuticals. This review summarized recent research work on the application, the structure and properties of attapulgite. The first part summarized the research progress of the application of attapulgite in the field of biological antibacterial, elaborated on the possible antibacterial mechanisms of attapulgite composite antibacterial materials, compared the preparation methods and antibacterial properties of different attapulgite based composite antibacterial materials, and gave that one of the research hotspots for attapulgite based composite antibacterial materials is to explore a simple and green preparation method. The second part summarized the application of attapulgite in the field of feed additives, represented the preparation of three different attapulgite based feed additives and their respective advantages and disadvantages, and pointed out that the relevant products are used in production practice, and listed some typical production process diagrams of the products. The third part represented the application of palygorskite in drug carriers. Attapulgite based drug carriers are mainly in the form of hydrogels and nanofibers. At present, there is no research on the application of attapulgite based drug carriers in vivo. The main reason is that the safety of palygorskite in vivo is unknown, and it is also stable, making it difficult to enter the blood and urinary circulation system as a drug carrier. However, the prepared attapulgite sustained-release tablets can be discharged through the digestive system and have great application prospects. The fourth part represented the application of attapulgite in composite scaffold materials. Although attapulgite based composite scaffold materials have a good osteogenic induction in vitro, their osteogenic induction in vivo is still unclear, and the mechanism of osteogenic induction in vitro is still unclear. The fifth part summarized the application of attapulgite in wound healing. Attapulgite based wound dressings have a good usability. Mixed dimensional attapulgite seems to have better usage effects and is expected to become a novel generation of hemostatic materials. Summary and prospects 1) In the future, it is necessary to accelerate the technological research on the full dispersion of attapulgite single crystals. Also, there is still a room for progress in the surface modification technology of attapulgite based composite antibacterial materials. The more attention should be paid to green and simple physical modification technologies, which can improve the production efficiency, and reduce the environmental pollution and costs. 2) Further research should be conducted on the application of palygorskite as a drug carrier on the body surface and digestive system, and pathways and methods suitable should be found to enable palygorskite to undergo harmless degradation in the blood and urinary systems. 3) It is necessary to accelerate the research on surface modification technologies of palygorskite, and make palygorskite based wound dressings into a form similar to gauze, which can to some extent reduce the risk of its entry into the blood system. 4) The practical application of attapulgite in the field of biomedicine is still relatively limited. In the future, we should accelerate the clinical research of attapulgite in the field of biomedicine, while still expanding the research of attapulgite in the field of biomedicine practice. For instance, we could use attapulgite to adsorb the metabolite of cholesterol-bile acid-to treat hypertension and hyperlipidemia. The adsorption of palygorskite is used to regulate the intestinal flora and interfere with the occurrence of type 2 diabetes. It is possible for the treatment of tumors to utilize the stability and biocompatibility of attapulgite to prepare high-performance drug loaded microspheres for embolization. The antibacterial and biocompatibility of attapulgite are also utilized to prepare alternative products for orthopedics and dentistry. This review provided a reference for the application research of attapulgite in the field of biomedicine.

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基本信息:

DOI:10.14062/j.issn.0454-5648.20230419

中图分类号:TB383.1;R318.08

引用信息:

[1]孙伟,王申金,刘小溪,等.凹凸棒石在生物医学领域中的应用研究进展[J].硅酸盐学报,2024,52(01):359-370.DOI:10.14062/j.issn.0454-5648.20230419.

基金信息:

2023年中南大学创新驱动计划(2023CXQD002); 国家自然科学基金青年项目(82301063); 南京南欣医药技术研究院横向(738010434); 长沙市科技计划(杰出创新青年培养计划,kq2106016)

投稿时间:

2023-06-18

投稿日期(年):

2023

终审时间:

2023-11-29

终审日期(年):

2023

修回时间:

2023-11-29

审稿周期(年):

1

发布时间:

2023-12-14

出版时间:

2023-12-14

网络发布时间:

2023-12-14

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