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首页> 外文期刊>RSC Advances >Salicylideneanilines encapsulated mesoporous silica functionalized gold nanoparticles: a low temperature calibrated fluorescent thermometer
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Salicylideneanilines encapsulated mesoporous silica functionalized gold nanoparticles: a low temperature calibrated fluorescent thermometer

机译：水杨基苯胺包封的介孔二氧化硅官能化的金纳米粒子：低温校准的荧光温度计

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In this study, a novel temperature responsive fluorescent sensor, 4-(2-hydroxybenzylideneamino)benzoic acid (HBA), encapsulated in the nanochannels of mesoporous silica functionalized with gold nanoparticles (GMS) was synthesized and studied. The fluorescence intensity of HBA-GMS showed excellent linear temperature sensitivity over a wide range, from cryogenic to room temperature (100-298 K). Meanwhile, GMS was used as an immobilization matrix to improve light harvesting and calibrate the HBA fluorescence intensity at different temperatures because of the stable and insensitive fluorescence signal of the gold nanoparticle intercalated into the walls of GMS. In addition, it was found that HBA-GMS exhibits excellent biocompatibility and low toxicity for cellular imaging due to the robust GMS support. These results suggest that the assembled mesostructure provides a promising, intelligent, and calibrated fluorescent thermometer with potential applications as a sensor and in cryogenic bio-detection and therapy fields.
机译：在这项研究中，合成和研究了一种新型的温度响应型荧光传感器4-（2-羟基苄叉亚氨基）苯甲酸（HBA），它被金纳米粒子（GMS）功能化的介孔二氧化硅的纳米通道中封装。 HBA-GMS的荧光强度在从低温到室温（100-298 K）的宽范围内均显示出出色的线性温度敏感性。同时，由于金纳米粒子插入到GMS壁中的稳定性和不灵敏的荧光信号，GMS被用作固定基质以改善光收集并在不同温度下校准HBA荧光强度。此外，由于强大的GMS支持，发现HBA-GMS对细胞成像具有出色的生物相容性和低毒性。这些结果表明，组装的介观结构提供了一种有前途的，智能的和经过校准的荧光温度计，具有作为传感器以及在低温生物检测和治疗领域中的潜在应用。

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