AH 2 O 2-free electrochemical peptide biosensor based on Au@ Pt bimetallic nanorods for highly sensitive sensing of matrix metalloproteinase 2

References

ref title DOI material type comment
3921 735 AH 2 O 2-free electrochemical peptide biosensor based on Au@ Pt bimetallic nanorods for highly sensitive sensing of matrix metalloproteinase 2 https://doi.org/10.1039/D0CC01598A Multi-metal Au@Pt bimetallic nanozyme

Materials

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
7944 735 Au@Pt TEM The average length and width of the AuNRs were calculated to be 43.3 4.9 nm and 11.2 2.3 nm respectively (Fig. S1a and b, ESI†). The Pt nanodots were wrapped on the surface of the AuNRs homogeneously and formed a rough shell, as observed from Fig. 1b and c and Fig. S2b–d (ESI†). The average length and width were 57.9 4.9 nm and 14.5 2.6 nm respectively (Fig. S1c and d, ESI†). The HR-TEM image of Au@Pt nanorods (Fig. 1d) showed clear lattice distances of 0.224 nm and 0.231 nm, which can be assigned to the (111) planes of crystalline Pt and Au.

Kinetics

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

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5658 735 Au@Pt highly sensitive sensing of matrix metalloproteinase 2 MMP-2 E-chem 0.5–100 ng/mL 0.18 ng/mL 96.1 to 104.4%