Sun Z., Peng Y., Wang M. et al. · Analytical Chemistry · 2020
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
The DNA/AuNPs/Cu-MOF biosensor detects S. aureus both indirectly through MNase in supernatant and directly through aptamer recognition of cells.
Caveat: Application evidence is for S. aureus ATCC 6538 and spiked urine/PBS tests, not clinical specimens.
main p.6, article p.8999-p.9000 · Conclusions · Linked to 4 structured results
The platform is selective against E. coli and L. monocytogenes in the reported PBS tests.
Caveat: Selectivity values are graphical estimates from SI Figure S5; exact currents are not tabulated.
main p.6, article p.8999 · Performance of the Biosensor · Figure S5 · Linked to 3 structured results
AuNP decoration further promotes electron transfer and provides Au-S binding sites for aptamer loading on the Cu-MOF film.
Caveat: AuNP loading amount is not quantified.
main p.4, article p.8997 · Feasibility of the Biosensor · Figure S1 · Linked to 2 structured results
Electrodeposited Cu-MOF films lower the Fe(CN)6 interfacial impedance relative to bare GCE and improve electron-transfer behaviour.
Caveat: The paper does not report intrinsic electronic conductivity in S/cm; evidence is electrochemical charge-transfer resistance and DPV current.
main p.4, article p.8997 · Feasibility of the Biosensor · Figure 2 · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| AuNPs/Cu-MOF composite film | Not specifiedCu-MOF copper nodes plus electrodeposited/reduced gold nanoparticles on the MOF surface. · H3BTC / 1,3,5-benzenetricarboxylate in the Cu-MOF component | 3D · CompositeComposite Cu-MOF film decorated with Au nanoparticles; SEM shows rough MOF surfaces surrounded by many nanoparticles. | main p.3, article p.8997 · Characterization of MOF Films · Figure 1B |
| bare glassy carbon electrode control | C | unknown · Model SystemNon-MOF electrode control used for EIS/DPV comparison. | main p.3, article p.8996 · Treatment and Modification of the Electrode |
| electrodeposited Cu-MOF thin filmBrowse family: HKUST-1 / Cu₃(BTC)₂ | Cu-BTC framework, commonly Cu3(BTC)2; exact formula not explicitly statedCopper paddle-wheel nodes with Cu2+/Cu+ redox-active sites. · H3BTC / 1,3,5-benzenetricarboxylate | 3D · PristineCrystalline Cu-MOF with paddle-wheel-shaped metal corners connected by BTC linkers; XRD pattern of synthesized film is consistent with simulated Cu-MOF. | main p.3, article p.8997 · Characterization of MOF Films · Figure 1 |
| DNA/AuNPs/Cu-MOF biosensor interface | Not specifiedCu-MOF copper nodes plus Au nanoparticles · H3BTC / 1,3,5-benzenetricarboxylate; thiolated S. aureus aptamer immobilised via Au-S bonds | 3D · CompositeAptamer-conjugated AuNPs/Cu-MOF composite film on GCE, blocked with 6-mercapto-1-hexanol. | main p.2, article p.8995 · Introduction · Scheme 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| AuNPs/Cu-MOF/GCE electroderesearch_0754__mat__aunps_cu_mof | Electrode · Composite Sample · Composite | AuNPs reduced in situ on the Cu-MOF surface at -0.5 V for 30 s.Cu-MOF film on glassy carbon electrode | main p.3, article p.8996 · Treatment and Modification of the Electrode |
| bare GCEresearch_0754__mat__bare_gce_model | Electrode · Model System · Model | Polished with alumina slurry, sonicated in ethanol and distilled water, rinsed and dried with nitrogen.glassy carbon electrode, 3 mm diameter | main p.3, article p.8996 · Treatment and Modification of the Electrode |
| Cu-MOF/GCE electroderesearch_0754__mat__cu_btc_mof | Electrode · Pristine Control · Pristine Framework | Electrodeposited Cu-MOF film dried at 50 deg C.glassy carbon electrode · thin film; thickness not reported | main p.3, article p.8996 · Treatment and Modification of the Electrode |
| DNA/AuNPs/Cu-MOF/GCE after S. aureus cell captureresearch_0754__mat__dna_aunps_cu_mof | Electrode · Target Sample · Composite | Biosensor incubated with S. aureus cells for direct aptamer recognition.DNA/AuNPs/Cu-MOF film on glassy carbon electrode | main p.2, article p.8995 · Introduction · Scheme 1 |
| DNA/AuNPs/Cu-MOF/GCE biosensorresearch_0754__mat__dna_aunps_cu_mof | Electrode · Composite Sample · Composite | AuNPs/Cu-MOF/GCE incubated with thiolated S. aureus aptamer and blocked with MCH.AuNPs/Cu-MOF film on glassy carbon electrode | main p.3, article p.8996 · Biosensor Fabrication |
| DNA/AuNPs/Cu-MOF/GCE after S. aureus supernatant exposureresearch_0754__mat__dna_aunps_cu_mof | Electrode · Target Sample · Composite | Biosensor incubated with S. aureus supernatant; MNase digests surface DNA aptamer.DNA/AuNPs/Cu-MOF film on glassy carbon electrode | main p.2, article p.8995 · Introduction · Scheme 1 |