...
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Sn4+ complexation with sulfonated-carbon dots in pursuit of enhanced fluorescence and singlet oxygen quantum yield
【24h】

Sn4+ complexation with sulfonated-carbon dots in pursuit of enhanced fluorescence and singlet oxygen quantum yield

机译:SN4 +络合与磺化 - 碳点追求增强荧光和单线氧量子产量

获取原文
获取原文并翻译 | 示例
           

摘要

Here we report a novel strategy to crosslink the surface of sulfonated-carbon dots (S-CDs) by complexing SnCl4 with sulfonate groups (-SO3-) on the CDs in aqueous solution. The S-CDs show an average photoluminescence (PL) quantum yield of 21% and a mean diameter of 3.8 nm. After being complexed with Sn4+, the as-obtained Sn@S-CDs present a reduced size of 1.8 nm and a higher PL quantum yield of 32%. More interestingly, the Sn@S-CDs show an enhanced singlet oxygen (O-1(2)) quantum yield as high as 37% compared to that of the S-CDs (27%). In the HepG2 cell line as a model, the Sn@S-CDs exhibit a remarkable cell imaging effect and in vitro PDT efficiency. Therefore, our study proposes a simple but effective cross-linking strategy to synthesize CDs incorporated with metal ions, for the purpose of achieving an enhanced fluorescence intensity and a higher O-1(2) quantum yield.
机译:在这里,我们报告了一种新的策略来通过在水溶液中Cds上的Cds上与磺酸盐基团(-SO3-)络合SnCl4来交联磺化 - 碳点(S-CDS)的表面。 S-CD显示平均光致发光(PL)量子产率为21%和平均直径为3.8nm。 随着SN4 +复合后,AS获得的SN @ S-CD尺寸减小为1.8nm,较高的PL量子产率为32%。 更有意义的是,与S-CD(27%)相比,SN @ S-CDS显示出增强的单线氧(O-1(2))量子产率高达37%。 在HepG2细胞系作为模型中,SN @ S-CD表现出显着的细胞成像效果和体外PDT效率。 因此,我们的研究提出了一种简单但有效的交联策略,以合成包含金属离子的CD,以实现增强的荧光强度和更高的O-1(2)量子产率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号