One-Pot Hydrothermal Synthesis of mSiO₂-N-CDs with High Solid-State Photoluminescence as a Fluorescent Probe for Detecting Dopamine.

ABSTRACT: An effective fluorescent probe (mSiO₂-N-CDs) was prepared by embedding N-CDs into mesoporous silica via a simple one-pot hydrothermal reaction and applied to the detection of dopamine (DA). Mesoporous silica not only provided a skeleton to prevent the aggregation of N-CDs but also a medium for the centrifugal collection of N-CDs, avoiding the need for dialysis and freeze-drying. The formation process, phase composition, morphology, and luminescence properties of the composite were studied in detail. The synthesized mSiO₂-N-CDs possessed spherical morphology, a smooth surface, and a diameter of approximately 150 nm. The fluorescence results indicated that mSiO₂-N-CDs emitted intense blue color fluorescence at 465 nm under the optimal excitation of 370 nm. Be

SUBMITTER: Guan X 

PROVIDER: S-EPMC10708435 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature