Abstract Ag nanobox/silica/quantum dot (QD) nanoprobe was synthesized by using a hydrothermal method to investigate the interaction between Ag nanobox and CdTeS QDs for the first time. Finite-difference time domain method was used to compare the optical behavior of Ag nanobox with Ag nanosquare. The comparison demonstrated that the Ag nanobox had excellent optical characteristics. In the nanoprobe, the silica shell was used to adjust the distance between the Ag nanobox and CdTeS QDs. A 4.5-fold increase in the fluorescence intensity of CdTeS QDs was achieved based on the local surface plasmon resonance (LSPR) of Ag nanobox. The Ag nanobox/silica/CdTeS QD nanoprobe was used to label cancer cells, thereby indicating that the nanoprobe was a suitable and excellent fluorescence probe.

中文翻译：

---

具有光致发光发射增强的 Ag 纳米盒/二氧化硅/CdTeS 量子点纳米探针用于标记癌细胞

摘要 采用水热法合成了Ag纳米盒/二氧化硅/量子点（QD）纳米探针，首次研究了Ag纳米盒与CdTeS QDs之间的相互作用。有限差分时域方法被用来比较Ag nanobox 和Ag nanosquare 的光学行为。比较表明Ag纳米盒具有优异的光学特性。在纳米探针中，二氧化硅壳用于调整 Ag 纳米盒和 CdTeS QD 之间的距离。基于 Ag 纳米盒的局部表面等离子体共振 (LSPR)，CdTeS QD 的荧光强度增加了 4.5 倍。Ag纳米盒/二氧化硅/CdTeS QD纳米探针用于标记癌细胞，从而表明该纳米探针是一种合适且优异的荧光探针。