CdTe@SiO2/Ag nanocomposites as antibacterial fluorescent markers for enhanced latent fingerprint detection
CdTe@SiO2/Ag nanocomposites as antibacterial fluorescent markers for enhanced latent fingerprint detection
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DOI：
10.1016/j.dyepig.2015.03.018
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发表时间：
2015-08
影响因子：
4.5
通讯作者：
Penghuai Niu;Baocang Liu;Yingjun Li;Qin Wang;Alideertu Dong;Heting Hou;Li Zhang;Yuxi Gao
中科院分区：
文献类型：
--
作者：
Penghuai Niu;Baocang Liu;Yingjun Li;Qin Wang;Alideertu Dong;Heting Hou;Li Zhang;Yuxi Gao
本文开发了一种简便的方法来合成 CdTe@SiO2/Ag 纳米复合材料，通过在银纳米颗粒溶胶中简单浸渍氨基功能化的 CdTe@SiO2，将均匀的银纳米颗粒耦合到核壳 CdTe@SiO2 量子点上。所得CdTe@SiO2/Ag纳米复合材料表现出高效的荧光和有效的抗菌活性。此外，由于SiO2的存在，CdTe@SiO2/Ag纳米复合材料表现出很强的粘合亲和力和化学稳定性，可以长期保存荧光并提供与潜在指纹的亲和力。因此，CdTe@SiO2/Ag纳米复合材料被探索作为潜在指纹检测的替代荧光标记，以提供更好的分辨率、高灵敏度和抗菌活性。同时，CdTe@SiO2/Ag纳米复合材料可用作替代荧光标记物，用于增强犯罪科学中各种物体表面的潜在指纹检测，以进行个体识别。
This paper developed a facile method to synthesize CdTe@SiO2/Ag nanocomposites by coupling uniform Ag nanoparticles on core–shell CdTe@SiO2quantum dots via simple impregnation of CdTe@SiO2functionalized with amino groups in Ag nanoparticle sols. The obtained CdTe@SiO2/Ag nanocomposites show efficient fluorescence and effective antibacterial activities. Besides, because of the existence of SiO2, the CdTe@SiO2/Ag nanocomposites manifest strong adhesive affinity and chemical stability, allowing the long-term preservation of fluorescence and affording affinity with latent fingerprints. Thus, the CdTe@SiO2/Ag nanocomposites are explored as alternative fluorescent markers for latent fingerprint detection to provide better resolution, high sensitivity, and antibacterial activities. Meanwhile, the CdTe@SiO2/Ag nanocomposites may be used as alternative fluorescent markers for enhanced latent fingerprint detection on a variety of object surfaces in criminal science for individual identification.