| 万雅婷,刘勇,杨海彬,刘意.化学通报,2023,86(9):1112-1118. |
| 新型共价有机骨架基金纳米复合材料的合成及性能研究 |
| Study on Synthesis and Properties of Novel Covalent Organic Frameworks-based Gold Nanocomposites |
| 投稿时间：2023-01-10 修订日期：2023-02-23 |
| DOI： |
| 中文关键词: 载金纳米复合材料 抗氧化 光热效应 抗菌 |
| 英文关键词:gold-loaded nanocomposites, antioxidation, photothermal effect, antibacterial |
| 基金项目:2022年全国大学生创新创业训练项目(202210573003)和广东省普通高校重点领域专项项目(2019KZDZX1019)资助 |
|
| 摘要点击次数: 355 |
| 全文下载次数: 16 |
| 中文摘要: |
| 本研究采用原位还原的方法将金纳米粒（AuNPs）负载到共价有机骨架（COFBDP/CD-S-3）上，形成载金纳米复合材料（COFBDP/CD-S-3-Au）。利用SEM、TEM、XRD和TGA等方法对COFBDP/CD-S-3-Au进行表征，并结合抗氧化性能测定、光热协同抗菌性能分析等实验。结果表明，COFBDP/CD-S-3-Au为具有介孔结构的粒径700~800 nm的球形结构，具有良好的热稳定性和抗氧化性能，如对DPPH自由基、ABTS自由基和FRAP自由基均具有一定的清除效果；当808 nm激光照射0.25 mg/mL COFBDP/CD-S-3-Au样品时，其光热效应（PTT）明显，光热转化率为12.57%，对于四种常见菌，呈现优异的光热协同抗菌作用。因此，COFBDP/CD-S-3-Au作为一种新型的纳米复合材料，在化妆品和生物医学领域具有良好的应用前景。 |
| 英文摘要: |
| In this study, gold nanoparticles (AuNPs) were loaded on covalent organic frameworks (COFs) by in-situ reduction to form gold-loaded nanocomposites (COFBDP/CD-S-3-Au). The COFBDP/CD-S-3-Au was characterized by SEM, TEM, XRD, TGA, etc., and combined with antioxidant determination and photothermal synergistic antimicrobial performance analysis. The results show that COFBDP/CD-S-3-Au is a spherical structure with mesoporous structure, its particle size is 700~800 nm. It performs good thermal stability and antioxidant properties, for example, it has a certain scavenging effect on DPPH free radicals, ABTS free radicals and FRAP free radicals. When the 0.25 mg/mL COFBDP/CD-S-3-Au sample is irradiated by the 808 nm laser, the photothermal effect (PTT) was obvious, with ?T reaching 12.7 ℃, and the photothermal conversion rate is 12.57%. For four common bacteria, excellent photothermal synergistic antibacterial effect was presented. Therefore, as a new type of nanocomposites, COFBDP/CD-S-3-Au has a bright application prospect in the field of cosmetics and biomedicine. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|