Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 374, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2022.132790
Keywords
Nitric oxide (NO); Fluorescent; Probe; Saliva; Oral diseases; Cell imaging
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A near-infrared fluorescent probe CS-Se based on Changsha dye was designed and synthesized for detecting nitric oxide (NO) concentration in oral diseases. The probe exhibited high selectivity and sensitivity, with a low toxicity for monitoring endogenous NO. This study presents the first fluorescent probe that can measure the concentration of NO in oral diseases and has promising potential for evaluating the progression of oral diseases.
In this study, a near-infrared Changsha dye (CS)-based fluorescent probe CS-Se for nitric oxide (NO) detection was designed and synthesized. The reaction between CS-Se and NO generated a highly selective and sensitive optical response that resulted in a fluorescence turn-on effect with a detection limit of as low as 28 nM. Saliva samples from 10 healthy individuals and patients with oral diseases were collected. The results showed that the level of NO concentration was positively correlated with the oral diseases. Cell experiments also showed that the probe had low toxicity and was able to monitor endogenous NO. This study presents the first fluorescent probe that can be used to measure the concentration of NO in oral diseases. This probe is a promising tool for monitoring and evaluating the progression of oral diseases.
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