A gold nanoparticle-intercalated mesoporous silica-based nanozyme for the selective colorimetric detection of dopamine

References

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DOI
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601A gold nanoparticle-intercalated mesoporous silica-based nanozyme for the selective colorimetric detection of dopaminehttps://doi.org/10.1039/C9NA00508KCompositeHighly dispersed aggregation-free gold nanoparticles intercalated into the walls of mesoporous silica (AuMS)

Materials

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BET
b nanozyme
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601AuMS1μmTEMAs shown in Fig. 3a, short bent rod-like structures with a length of about 1 μm can be observed. The particles into the walls are 3.8 ± 0.5 nm in diameter (Fig. 3e) with an average size of 4 nm (Fig. 4).

Kinetics

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601AuMSPODH2O278.6mM9.9-8M/s601601
601AuMSPODTMB0.146mM5.07-8M/s601601

Applications

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601AuMSthe selective colorimetric detection of dopamineDopamine (DA)Color10-80μM1.28nM