Sharma Priyanka, Ganguly Mainak, Sahu Mamta
Solar Energy Conversion and Nanomaterials Laboratory, Department of Chemistry, Manipal University Jaipur Dehmi Kalan Jaipur 303007 India
RSC Adv. 2024 Oct 7;14(43):31624-31632. doi: 10.1039/d4ra05501b. eCollection 2024 Oct 1.
Weakly fluorescent AuAg nanoclusters were obtained from glutathione, chloroauric acid, and silver nitrate aqueous solution under a modified hydrothermal method. Such glutathione-capped synergistically evolved clusters were obtained for the first time by employing our experimental conditions. Such weak fluorescence was made significantly brighter by employing Na and a Na sensor was obtained with a linear detection range of 10-5 × 10 M, while the limit of detection was 1.02 × 10 M. Na made the GSH matrix positively charged to stabilize AuAg clusters resulting in strong emissive properties. Furthermore, the effect of solvents, sunlight exposure, and temperature was gauged. Estimation of Na concentration was undertaken for natural water samples to demonstrate the practical utility of the designed nanosensor.
在改进的水热法条件下，由谷胱甘肽、氯金酸和硝酸银水溶液制得弱荧光的金银纳米团簇。通过我们的实验条件首次获得了这种谷胱甘肽包覆的协同演化团簇。通过使用钠，这种弱荧光显著增强，并且获得了一种钠传感器，其线性检测范围为10⁻⁵×10 M，而检测限为1.02×10 M。钠使谷胱甘肽基质带正电以稳定金银团簇，从而产生强发射特性。此外，还评估了溶剂、阳光照射和温度的影响。对天然水样进行了钠浓度的测定，以证明所设计的纳米传感器的实际应用价值。
