Mohapatra P., Ghosh S., Patra S. et al. · Biosensors and Bioelectronics · 2025 · 117056
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.
AgMOF/GCE is the best H2O2 sensing platform among the studied electrodes, with 0.7 nM LOD, 1300 uA mM-1 cm-2 sensitivity and broad linear range.
Caveat: Reproducibility/selectivity comparisons are in text-only SI Table S2/Figs. S12-S13; main text reports summary only.
8 · 3.2 · Linked to 6 structured results
AgMOF/GCE live-cell chronoamperometry distinguishes normal L929 cells, HeLa cancer cells and glial cancer cell lines by released H2O2 level, with higher H2O2 in T98G and LN18 brain cancer cells.
Caveat: Biological validation is application-context evidence, not a transport property; colourimetric results are systematically higher for some lines and are discussed as interconversion/interference-prone.
9-10 · 3.3 / 4. Conclusion · Fig. 6f · Linked to 6 structured results
AgMOF/GCE retains selective H2O2 response in interferent and serum-spiked tests, with Table S2 recoveries generally near 96-100% at 1-5 uM H2O2.
Caveat: Lowest 0.1 uM serum recovery is lower, especially sample 1 at 86.3%, so the broad text claim of 99% recovery over all concentrations is overstated.
14-16 · S2.4 · Table S2; Fig. S12f · Linked to 5 structured results
AgMOF-5 was successfully synthesised as an Ag-O coordinated silver MOF and transformed to Ag-N coordinated Ag nanospheres by ligand exchange/calcination.
Caveat: Main-text summary is strong, but detailed XPS/EDS tables and some supporting spectra are in text-only SI.
9 · 4. Conclusion · Linked to 5 structured results
Ag+ ions in AgMOF act as catalytic centres for H2O2 disproportionation/decomposition, and the AgMOF structure improves both catalytic activity and conductivity.
Caveat: Mechanistic assignment is based on electrochemical behaviour, XPS and literature reasoning rather than direct operando mechanistic measurement.
8 · 3.2 · Fig. 5 · Linked to 3 structured results
AgMOF/GCE has much better charge transfer than Ag nanosphere/GCE, attributed to Ag+ centres, Ag-Ag interactions, terephthalate/benzene conjugation and aromatic stacking, whereas Ag-N ligand exchange disrupts the conductive framework.
Caveat: Direct electronic conductivity was not reported as a four-probe conductivity; EIS/Rct is the transport proxy.
6 · 3.1 · Fig. 4a-b · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| AgMOF-derived Ag nanosphere | Agmetallic Ag with Ag-N coordination environment · 2-methylimidazole-derived Ag-N coordination residues/coordination environment | 3D · DerivedCompact Ag nanosphere derived from AgMOF by ligand exchange with Hmim and Ar calcination; authors describe Ag-N coordination replacing/disrupting Ag-O coordination. | 1-2 · Abstract / Introduction · Fig. 1 |
| AgMOF-5 / AgMOF | Not specifiedAg+ / silver nodes · terephthalic acid / H2BDC-derived carboxylate linkers | 3D · PristineAg-O coordinated silver metal-organic framework resembling MOF-5; described as a robust Ag+ and terephthalic-acid network with Ag-O bonds and aromatic stacking. | 1-2 · Abstract / Introduction |
| bare glassy carbon electrode | C | unknown · Model SystemCommercial/standard glassy carbon electrode used as electrochemical control. | 3 · 2.4. Electrochemical experiments |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Ag nanosphere/GCEresearch_0693__mat__ag_nanosphere | Electrode · Composite Sample · Composite | prepared analogously to AgMOF/GCE with Ag nanosphere powder and Nafionglassy carbon electrode | 3 · 2.5. Modified electrode preparation |
| whitish shining Ag nanosphere powderresearch_0693__mat__ag_nanosphere | Powder · Pristine Control · Unknown | AgMOF-derived ligand-exchanged precursor calcined at 700 C for 8 h under Ar | 3 · 2.3. Synthesis of AgMOF-derived Ag nanosphere |
| AgMOF/GCEresearch_0693__mat__agmof_5 | Electrode · Composite Sample · Composite | 10 uL of 1 mg/mL AgMOF cast on dried GCE, dried 2 h in air, then 10 uL 0.05% Nafion added and dried 45 minglassy carbon electrode | 3 · 2.5. Modified electrode preparation |
| greyish AgMOF powderresearch_0693__mat__agmof_5 | Powder · Pristine Control · Pristine Framework | washed with DI water and ethanol; dried at 50 C overnight | 3 · 2.2. Synthesis of AgMOF |
| bare GCEresearch_0693__mat__bare_gce | Electrode · Pristine Control · Model | polished/cleaned GCE used without MOF coatingglassy carbon electrode | 3 · 2.4. Electrochemical experiments |