Nanosensor for Sensitive Detection of the New Psychedelic Drug 25I-NBOMe
Por:
E. GARRIDO, M. ALFONSO, B. DE GRENU, B. LOZANO-TORRES, M. PARRA, P. GAVINA, M. MARCOS, R. MARTINEZ-MANEZ and F. SANCENON
Publicada:
2 mar 2020
Ahead of Print:
1 feb 2020
Resumen:
This work reports the synthesis, characterization, and sensing behavior of a hybrid nanodevice for the detection of the potent abuse drug 25I-NBOMe. The system is based on mesoporous silica nanoparticles, loaded with a fluorescent dye, functionalized with a serotonin derivative and capped with the 5-HT2A receptor antibody. In the presence of 25I-NBOMe the capping antibody is displaced, leading to pore opening and rhodamine B release. This delivery was ascribed to 5-HT2A receptor antibody detachment from the surface due to its stronger coordination with 25I-NBOMe present in the solution. The prepared nanodevice allowed the sensitive (limit of detection of 0.6 mu m) and selective recognition of the 25I-NBOMe drug (cocaine, heroin, mescaline, lysergic acid diethylamide, MDMA, and morphine were unable to induce pore opening and rhodamine B release). This nanodevice acts as a highly sensitive and selective fluorometric probe for the 25I-NBOMe illicit drug in artificial saliva and in sweets.
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