CdTe0.5S0.5/ZnS Quantum Dots Embedded in a Molecularly Imprinted Polymer for the Selective Optosensing of Dopamine
AbstractThis work describes the preparation of molecularly imprinted polymer (MIP)-modified core/shell CdTe0.5S0.5/ZnS quantum dots (QDs). The [email protected] particles were used for the selective and sensitive detection of dopamine (DA). Acrylamide, which is able to form hydrogen bonds with DA, and ethylene glycol dimethylacrylate (EGDMA) as cross-linker were used for the preparation of the MIP. Highly cross-linked polymer particles with sizes up to 1 µm containing the dots were obtained after the polymerization. After the removal of the DA template, MIP-modified QDs ([email protected]) exhibit a high photoluminescence (PL) with an intensity similar to that of QDs embedded in the nonimprinted polymer (NIP). A linear PL decrease was observed upon addition of DA to [email protected] and the PL response was in the linear ranges from 2.63 µM to 26.30 µM with a limit of detection of 6.6 nM. The PL intensity of [email protected] was quenched selectively by DA. The [email protected] particles developed in this work are easily prepared and of low cost and are therefore of high interest for the sensitive and selective detection of DA in biological samples. View Full-Text
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Khadem-Abbassi, K.; Rinnert, H.; Balan, L.; Doumandji, Z.; Joubert, O.; Masteri-Farahani, M.; Schneider, R. CdTe0.5S0.5/ZnS Quantum Dots Embedded in a Molecularly Imprinted Polymer for the Selective Optosensing of Dopamine. Nanomaterials 2019, 9, 693.
Khadem-Abbassi K, Rinnert H, Balan L, Doumandji Z, Joubert O, Masteri-Farahani M, Schneider R. CdTe0.5S0.5/ZnS Quantum Dots Embedded in a Molecularly Imprinted Polymer for the Selective Optosensing of Dopamine. Nanomaterials. 2019; 9(5):693.Chicago/Turabian Style
Khadem-Abbassi, Kiana; Rinnert, Hervé; Balan, Lavinia; Doumandji, Zahra; Joubert, Olivier; Masteri-Farahani, Majid; Schneider, Raphaël. 2019. "CdTe0.5S0.5/ZnS Quantum Dots Embedded in a Molecularly Imprinted Polymer for the Selective Optosensing of Dopamine." Nanomaterials 9, no. 5: 693.
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