Microscopy Morphology — Aptasensor based on gold nanostructure-decorated 2D Cu metal–organic framework nanosheets for highly sensitive and specific electrochemical lipopolysaccharide detection

Measurement evidence

Microscopy Morphology

Aptasensor based on gold nanostructure-decorated 2D Cu metal–organic framework nanosheets for highly sensitive and specific electrochemical lipopolysaccharide detection · Tong Y., Chen M., Huang X. et al. · Microchimica Acta · 2024 · 500

4 measurement groups · 10 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

SEM/EDS

Au/Cu-THQ/GCE · Electrode

SEM of Au/Cu-THQ/GCE and Au/Cu-TCPP/GCE at 3.0 kV after electrode surface modification; EDS mapping in SI.

Geometry
removable GCE electrode surface
Context
Au-decorated MOF/GCE composites
Measurement source
3 · Instruments · Figure 2; Figures S8-S9
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Au mass-normalised percentage on Au/Cu-TCPP/GCE surface89.58 mass norm%SI Table
Exact Reported
12 · Supplementary Materials · Figure S8
Au atom percentage on Au/Cu-TCPP/GCE surface48.26 atom% (main text calls this mass percentage; SI table labels it Atom [%])SI Table
Exact Reported
12 · Supplementary Materials · Figure S8
Au morphology on Cu-TCPP/GCEAuNPs unevenly deposited on Cu-TCPP/GCEText
Qualitative
5 · Preparation and characterization of Au/2D-MOF/GCE · Figure 2B; Figure S8
Au mass-normalised percentage on Au/Cu-THQ/GCE surfaceMarked as a best value within this paper98.62 mass norm%SI Table
Exact Reported
13 · Supplementary Materials · Figure S9
Au atom percentage on Au/Cu-THQ/GCE surfaceMarked as a best value within this paper84.96 atom% (main text calls this mass percentage; SI table labels it Atom [%])SI Table
Exact Reported
13 · Supplementary Materials · Figure S9
Au morphology on Cu-THQ/GCEMarked as a best value within this paperevenly deposited and fully covered; nanoflower-like 3D architectureText
Qualitative
5 · Preparation and characterization of Au/2D-MOF/GCE · Figure 2C; Figure S9

SEM

Cu-THQ/GCE · Electrode

SEM images of bare GCE, Cu-TCPP/GCE and Cu-THQ/GCE used to compare MOF-only electrode morphology before Au deposition.

Geometry
modified GCE electrode surface
Context
MOF-only GCE controls
Measurement source
11 · Supplementary Materials · Figure S7
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Cu-TCPP/GCE SEM morphologyfolding and wrinkling morphology on GCEText
Qualitative
6 · Preparation and characterization of Au/2D-MOF/GCE · Figure S7B
Cu-THQ/GCE SEM morphologyMarked as a best value within this paperflatter morphology with redox ligands and denser Cu redox sitesText
Qualitative
6 · Preparation and characterization of Au/2D-MOF/GCE · Figure S7C

TEM

Cu-TCPP nanosheets · Nanosheet

JEM 1400 TEM at 200 kV after dropping ethanolic suspension onto holey carbon-coated copper grids.

Context
pristine MOF nanosheets
Measurement source
3 · Instruments · Figure 1A
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Cu-TCPP nanosheet morphology2D nanosheet morphology with crumpled and wrinkled surfacesText
Qualitative
4 · Characterization of the synthesized 2D Cu-MOF nanosheets · Figure 1A

TEM

Cu-THQ nanosheets · Nanosheet

JEM 1400 TEM at 200 kV after dropping ethanolic suspension onto holey carbon-coated copper grids.

Context
pristine MOF nanosheets
Measurement source
3 · Instruments · Figure 1B
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Cu-THQ nanosheet morphologyMarked as a best value within this paper2D nanosheet morphology; flatter morphology with redox ligands and denser Cu redox sitesText
Qualitative
6 · Preparation and characterization of Au/2D-MOF/GCE · Figure S7C