Primary studyCore evidenceTransport Physics

Conductive NiCo bimetal-organic framework nanorods with conductivity-enhanced electrochemiluminescence for constructing biosensing platform

Yang Y., Zhang J.-L., Liang W.-B. et al. · Sensors and Actuators B: Chemical · 2022 · 131802

3materials
5samples
4synthesis routes
24measurements
76results
5claims and caveats

Evidence map

Open a family to keep every result attached to its sample, method and conditions.

Author interpretations and caveats

Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.

Application RelevanceSupport assessment: Medium

NiCo-HHTP nanorods enable an ultrasensitive ECL biosensor for miRNA-141 with a 1 fM to 10 nM range and 0.69 fM detection limit.

Caveat: Application sample includes PtNPs and DNA components, so the sensing metrics are not pristine-MOF-only properties; SI text supplies optimisation and LOD calculation.

5 · 4 Conclusion · Fig. 4; Fig. 5 · Linked to 7 structured results

Phase AssignmentSupport assessment: High

The combined PXRD, microscopy, elemental mapping, XPS and porosity evidence confirms successful synthesis of NiCo-HHTP nanorods.

Caveat: Supporting figures/tables are partly represented by SI text and captions; SI rendered images are absent, limiting independent figure-axis verification.

3 · 3.1 Microstructure of NiCo-HHTP nanorods · Fig. 1; Figs. S1,S3,S6,S7; Table S2 · Linked to 7 structured results

Structure Property LinkSupport assessment: Medium

Cobalt incorporation in isostructural NiCo-HHTP significantly enhances electrical conductivity relative to Ni-HHTP.

Caveat: Ni-HHTP synthesis is supplied in SI and isostructurality/composition are supported, but conductivity measurement geometry is not described in the supplied text.

5 · 4 Conclusion · Linked to 6 structured results

Transport MechanismSupport assessment: Medium

Higher electrical conductivity of NiCo-HHTP accelerates charge transport and favours electrochemical activation of HHTP luminophores, giving stronger ECL intensity and efficiency.

Caveat: The mechanism is inferred from comparative data between NiCo-HHTP and Ni-HHTP; direct transport mechanism measurements beyond conductivity are not detailed in the main article.

3 · 3.2 ECL performance · Fig. 2 · Linked to 4 structured results

Transport MechanismSupport assessment: Low

The red-shifted ECL emission is attributed to excimer species, whereas PL emission is assigned to singlet excited species.

Caveat: The paper states this as a possible reason; no direct excimer structural proof is provided in the main text.

4 · 3.4 Spectral characteristics of NiCo-HHTP nanorods · Fig. 3B-D · Linked to 3 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
Ni-HHTP monometallic metal-organic frameworkBrowse family: Ni₃(HHTP)₂ / Ni–HHTPNot specifiedNi nodes · HHTP = 2,3,6,7,10,11-hexahydroxytriphenyleneunknown · PristineReported as isostructural monometallic control to NiCo-HHTP.5 · S-1.3 Synthesis of Ni-HHTP
NiCo-HHTP bimetal-organic framework nanorodsBrowse family: Ni/Co–HHTP family[NixCo9-x(HHTP)4(H2O)30]Mixed Ni/Co nodes; Ni2+ and Co2+ assigned by XPS · HHTP = 2,3,6,7,10,11-hexahydroxytriphenyleneunknown · PristinePXRD was reported to be consistent with experimental and simulated Ni-HHTP patterns; described as isostructural with Ni-HHTP.1 · Abstract
NiCo-HHTP/PtNP/H1/MCH ECL biosensor interfaceBrowse family: Ni/Co–HHTP familyNot specifiedNiCo-HHTP mixed Ni/Co nodes plus platinum nanoparticles · HHTP in NiCo-HHTP; DNA hairpins H1/H3-Fc and MCH in sensor assemblyunknown · CompositeComposite electrode interface fabricated on glassy carbon electrode for ECL biosensing.2 · Introduction · Scheme 1B

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 5 sample records
SampleForm and roleProcessing and geometrySource
HHTP ligand referenceresearch_0008__mat__nico_hhtpModel · Model System · Model0.48 ug/mL HHTP tested as a non-framework ECL reference.4 · 3.3 Possible ECL mechanism · Fig. 3A
Ni-HHTP monometallic MOF controlresearch_0008__mat__ni_hhtpPowder · Pristine Control · Pristine FrameworkDark blue precipitate collected by centrifugation, washing and drying after 85 C reaction.5 · S-1.3 Synthesis of Ni-HHTP
NiCo-HHTP/PtNP/H1/MCH biosensor electroderesearch_0008__mat__nico_hhtp_biosensor_interfaceElectrode · Composite Sample · CompositeNiCo-HHTP/GCE modified with PtNPs, incubated with H1 overnight and blocked with MCH.Glassy carbon electrode3 · 2.2 Fabrication of the ECL biosensor · Scheme 1B
NiCo-HHTP/GCE electroderesearch_0008__mat__nico_hhtp_biosensor_interfaceElectrode · Composite Sample · Composite10 uL of 1 ug/mL NiCo-HHTP drop-cast on polished GCE and dried.Glassy carbon electrode3 · 2.2 Fabrication of the ECL biosensor · Scheme 1B
NiCo-HHTP nanorodsresearch_0008__mat__nico_hhtpPowder · Target Sample · DopedDark blue precipitate collected by centrifugation, washing and drying after solvothermal reaction.2 · 2.1 Synthesis of NiCo-HHTP · Scheme 1A