| 7356 |
33 |
Co/PMCS |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 7554 |
311 |
organic nanozymes |
|
|
|
TEM |
As imaged with TEM, the freshly prepared nanozymes show uniform and small diameters of about 3 nm (Figure 2a), and upon exposure to the radicals, for example, H2O2 or •OH (Figure S6a), they aggregated gradually to about 300 nm because of multiple disulphide bridging between particles. Likewise, the AFM image demonstrates a uniform height of about 3 nm for the nanozyme (Figure 2b). Under H2O2 or •OH treatments (Figure S6b), the nanozyme sizes increase significantly in width with similar morphologies to those in TEM images, but their heights reached only about 10 nm, likely resulting from a collapse of soft-structured nanozyme aggregation. |
|
|
|
|
|
|
|
|
| 7555 |
312 |
PtRu NPs |
0.227 |
|
nm |
TEM |
The adjacent lattice spacing was calculated to be 0.227 nm (marked in red), which matched well with the planar distance of the (111) plane. |
|
|
|
|
|
|
|
|
| 7754 |
524 |
Pd@Pt-GOx/hyaluronic acid (HA |
80 |
|
nm |
DLS |
The hydrodynamic size of Pd@Pt was ∼58 nm, which changed to ∼68 nm for Pd@Pt-GOx and ∼80 nm for Pd@Pt-GOx/HA (Figure 1f) |
|
|
|
|
|
|
|
|
| 8095 |
903 |
AuNPs |
10 |
|
nm |
SEM |
Figure 6. The SEM and energy spectral pictures |
|
|
|
|
|
|
|
|
| 8105 |
913 |
Cu-HCSs |
120 |
|
nm |
SEM |
Cu-HCSs were prepared according to our previous work, and exhibited a bulk morphological diameter of ∼120 nm with a hollow structure (Fig. S1†) |
|
|
|
|
|
|
|
|
| 8106 |
914 |
MnO2@Au |
100 |
|
nm |
TEM |
The transmission electron microscope (TEM) images demonstrated Au nanoparticles (Au NPs) in situ grown in ∼100 nm of MnO2 nanosheets (Fig. 1B). The elemental mapping images of MnO2@Au confirmed the coexistence of Mn, O, C, N and Au elements (Fig. 1C). |
|
|
|
|
|
|
|
|
| 8115 |
923 |
Au–CeO2 |
125 |
|
nm |
TEM |
the uniformly dispersed Au–CeO2 JNPs of about 125 nm were obtained (Fig. 1F). The DLS results indicated that the diameter of the Au–CeO2 JNPs is about 171 nm, |
|
|
|
|
|
|
|
|
| 8263 |
1244 |
Au-MCM-41 hybrids |
50 |
|
nm |
TEM |
Figure 1. Synthesis and characterization of the Au-mesoporous silica hybrids: (a) Schematic description of the different synthesis stages including (i) the synthesis of the Au NPs with the aid of THPC [59,62]; (ii) the synthesis of the MCM-41 ordered mesoporous spheres and the amino-grafting step with APTES [49,65,66]; (iii) the gold seeding attachment by electrostatic attraction; (b–c) HAADF-STEM images of the individual Au NPs; (d–e) TEM images at different magnifications of the mesoporous silica supports showing the ordered organization of the mesochannels; (f–g) TEM and STEM images displaying the correct gold seeding process via electrostatic attraction and the formation of the Au-silica hybrid nanoparticles. |
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|