Nanozyme Database

	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
8160	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	k_m	k_m unit	v_max	v_max 10ⁿ	v_max unit	k_cat	k_cat 10ⁿ	k_cat unit	k_cat/k_m	comment
7059	1095	GOQD-q-CuO	POD	H2O2	0.02	mM	6.17	-6	M/s	0.25		1/s	1095	1095
7060	1095	GOQD-q-CuO	POD	X-	0.28	mM	9.92	-7	M/s	3.98	-2	1/s	1095	1095
7061	1095	GOQD-q-CuO	POD	TMB	0.008	mM	5.82	-6	M/s	0.23		1/s	1095	1095
7062	1095	GOQD-q-CuO	POD	ABTS	0.291	mM	2.85	-8	M/s				1095	1095

	ref	material	application	target	method	linear range	linear ran unit	LOD	lod unit	recovery	comment
6004	1095	GOQD-q-CuO	detect glucose	glucose	Color	5–400	μM	2.5	μM
6003	1095	GOQD-q-CuO	detect glucose	H2O2	Color	2.5–200	μM	0.5	μM

	ref	title	DOI	material type	comment
4282	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