双功能乳酸衍生的粉样涂层防止细菌粘附,并通过深度重矿化封闭牙管道
Bing Sun1, Jiao Sun1, Kai Zhang1
1Tianjin Medical University School and Hospital of Stomatology & Tianjin Key Laboratory of Oral Soft and Hard Tissues Restoration and Regeneration, No. 12 Qixiangtai Road, Heping District, Tianjin 300070, PR China; Tianjin Medical University Institute of Stomatology, No. 12 Qixiangtai Road, Heping District, Tianjin 300070, PR China.
Acta biomaterialia
|September 7, 2024
概括
一种新的乳酸衍生的粉样胺纳米膜 (PTLF纳米膜) 通过防止细菌粘附和促进牙重矿化,有效治疗牙过敏. 这种创新的涂层为管理牙过敏提供了一个有前途的解决方案.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 牙科研究 牙科研究
背景情况:
- 牙过敏性 (DH) 是由于牙磨损后暴露的牙管 (DTs) 造成的.
- 目前的消毒剂有其局限性,包括透性差,重矿化缓慢,缺乏抗菌作用.
研究的目的:
- 设计一种由唾液获得的皮膜 (SAP) 启发的新型乳酸氨酸衍生的粉样纳米薄膜 (PTLF纳米薄膜).
- 评估PTLF纳米薄膜在预防空性细菌粘附和促进牙重矿化对DH管理的有效性.
主要方法:
- 使用Tris(2-carboxyethyl) phosphine (TCEP) 修改了乳酸 (LF),以创建PTLF纳米片.
- 纳米片被测试了它们防止Streptococcus mutans和Lactobacillus acidophilus粘附的能力.
- 评估了在非矿物化牙表面的酸 (HAP) 在现场的重矿化.
主要成果:
- PTLF纳米膜有效地抑制了 cariogenic 细菌的早期和稳定的粘附.
- 纳米膜很快粘附于去矿化牙,促进了重矿化.
- 在三天内形成了一层类似天然牙的再生矿物质层,封闭了超过80微米深的牙管道.
结论:
- 这种PTLF纳米薄膜表现出极好的生物相容性.
- 双功能涂层同时表现出抗菌作用和牙重矿化能力.
- PTLF粉样蛋白涂层为牙过敏症提供了一个有前途的治疗策略.
相关概念视频
01:23Antimicrobial Proteins
951
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
951
01:18Surface Membrane Barriers
1.1K
The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
1.1K