ref | title | DOI | material type | comment |
---|---|---|---|---|
1095 | Graphene oxide and CuO double quantum dot composites (GOQD-q-CuO) with enhanced haloperoxidase-like activity and its application in colorimetric detection of H2O2 and glucose | https://doi.org/10.1016/j.matchemphys.2020.124126 | Composite | Graphene oxide and CuO double quantum dot composites |
ref | material | size | size err | size unit | size type | size comment | BET | b nanozyme | b 10n | b unit | specific act | sa 10n | sa unit | comment |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1095 | GOQD-q-CuO | nm | TEM | Typical TEM images are displayed in Fig. 1A and S1A, which show well-dispersed, uniform, and spherical GOQD and q-CuO with an average diameters of ~4–7 nm (Fig. 1B) and ~3–5 nm, respectively, which are consistent with previous reports [21,27]. The q-CuO are surrounded by GOQD, forming GOQD-q-CuO composites (Fig. S1B) because of the presence of GOQD surface functional groups, such as peripheral carboxylic groups [28]. The q-CuO are not spindle-shaped as reported elsewhere because precipitation from alcohol enables direct formation of CuO, unlike precipitation from aqueous solution that initially results in Cu(OH)2 formation [29,30]. The high resolution TEM image of GOQD-q-CuO (Fig. 1C) shows a 0.25 nm distance between neighboring lattice fringes, corresponding to the [002] planes of monoclinic CuO. The Energy dispersive spectra (EDS) and elemental mapping results of CuO/PCN nanocomposite further demonstrate the presence of C, O and Cu elements (Fig. 1D–G). |
ref | material | enzyme type | substrate | pH | T | km | km err | km 10n | km unit | vmax | vmax err | vmax 10n | vmax unit | kcat | kcat err | kcat 10n | kcat unit | kcat/km | kcat/km
10n | kcat/km unit | comment |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1095 | GOQD-q-CuO | POD | ABTS | 0.291 | mM | 2.85 | -8 | M/s | 1095 | 1095 | |||||||||||
1095 | GOQD-q-CuO | POD | TMB | 0.008 | mM | 5.82 | -6 | M/s | 0.23 | 1/s | 1095 | 1095 | |||||||||
1095 | GOQD-q-CuO | POD | X- | 0.28 | mM | 9.92 | -7 | M/s | 3.98 | -2 | 1/s | 1095 | 1095 | ||||||||
1095 | GOQD-q-CuO | POD | H2O2 | 0.02 | mM | 6.17 | -6 | M/s | 0.25 | 1/s | 1095 | 1095 |
ref | material | application | target | method | linear range | linear ran unit | LOD | lod unit | recovery | comment |
---|---|---|---|---|---|---|---|---|---|---|
1095 | GOQD-q-CuO | detect glucose | glucose | Color | 5–400 | μM | 2.5 | μM | ||
1095 | GOQD-q-CuO | detect glucose | H2O2 | Color | 2.5–200 | μM | 0.5 | μM |