Sensing Application — Nanoporous gold induced vertically standing 2D NiCo bimetal-organic framework nanosheets for non-enzymatic glucose biosensing

5 measurement groups · 25 results

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

vertical NiCo(1:1)-MOFNs array on nanoporous gold, 4 h growth · Electrode

successive additions of glucose into 0.1 M NaOH at 0.5 V vs. SCE under steady state

Atmosphere: N2-saturated electrolyte per electrochemical measurements
Geometry: three-electrode
Context: target sample
Measurement source: 656 · 3.4.1 Amperometric detection of glucose · Fig. 5a-b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
amperometry applied potential	0.5 V vs. SCE	—	—	Caption Exact Reported	656 · Fig. 5 caption · Fig. 5a
calibration intercept	0.0499 mA cm^-2	—	—	Text Exact Reported	656 · 3.4.1 Amperometric detection of glucose · Fig. 5b
calibration R^2Marked as a best value within this paper	R^2 = 0.9966	—	—	Figure Axis Rounded Reported	656 · Fig. 5 · Fig. 5b
linear range upper boundMarked as a best value within this paper	8 mM	—	—	Text Exact Reported	656 · 3.4.1 Amperometric detection of glucose · Fig. 5b
linear range lower boundMarked as a best value within this paper	0.0010 mM	—	—	Text Exact Reported	656 · 3.4.1 Amperometric detection of glucose · Fig. 5b
limit of detectionMarked as a best value within this paper	0.29 uM (S/N = 3)	—	—	Text Exact Reported	656 · 3.4.1 Amperometric detection of glucose · Fig. S9
response timeMarked as a best value within this paper	less than 1 s	—	—	Text Approximate	656 · 3.4.1 Amperometric detection of glucose · Fig. S9
glucose sensitivityMarked as a best value within this paper	0.6844 mA mM^-1 cm^-2	—	—	Text Exact Reported	656 · 3.4.1 Amperometric detection of glucose · Fig. 5b

vertical NiCo(1:1)-MOFNs array on nanoporous gold, 4 h growth · Electrode

five independent sensors detecting 2 mM glucose; one sensor with ten successive detections of 4 mM glucose

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
single-sensor repeatability RSDMarked as a best value within this paper	2.9% for ten successive detections of 4 mM glucose	—	—	Text Exact Reported	SI p. 6 · Fig. S10 caption text · Fig. S10b
between-sensor reproducibility RSDMarked as a best value within this paper	4.5% for five independently prepared biosensors detecting 2 mM glucose	—	—	Text Exact Reported	SI p. 6 · Fig. S10 caption text · Fig. S10a

vertical NiCo(1:1)-MOFNs array on nanoporous gold, 4 h growth · Electrode

0.1 mM each NaCl, urea, AA, DA, UA and AP added into 1 mM glucose solution at 0.5 V

Atmosphere: N2-saturated electrolyte per electrochemical measurements
Geometry: three-electrode
Context: target sample
Measurement source: 656 · 3.4.2 Selectivity, reproducibility and stability · Fig. 5c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
interferent current increaseMarked as a best value within this paper	1.3-3.1%	—	—	Text Range	656 · 3.4.2 Selectivity, reproducibility and stability · Fig. 5c

vertical NiCo(1:1)-MOFNs array on nanoporous gold, 4 h growth · Electrode

diabetic patient serum injected into 0.1 M NaOH; standard addition using 10 mM glucose standard

Geometry: amperometric glucose sensing
Context: target sample
Measurement source: 657 · 3.4.2 Selectivity, reproducibility and stability · Fig. S12, Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
serum spike recovery rangeMarked as a best value within this paper	96-106%	—	—	Text Range	657 · 3.4.2 Selectivity, reproducibility and stability · Table S2
serum sample 1 hospital glucose	6.13 mM	—	—	SI Table Exact Reported	SI p. 8 · Table S2 · Table S2
serum sample 1 spike recovery	106%	—	—	SI Table Exact Reported	SI p. 8 · Table S2 · Table S2
serum sample 1 sensor glucose	6.38 mM	—	—	SI Table Exact Reported	SI p. 8 · Table S2 · Table S2
serum sample 2 hospital glucose	12.25 mM	—	—	SI Table Exact Reported	SI p. 8 · Table S2 · Table S2
serum sample 2 spike recovery	105%	—	—	SI Table Exact Reported	SI p. 8 · Table S2 · Table S2
serum sample 2 sensor glucose	12.5 mM	—	—	SI Table Exact Reported	SI p. 8 · Table S2 · Table S2
serum sample 3 hospital glucose	24.50 mM	—	—	SI Table Exact Reported	SI p. 8 · Table S2 · Table S2
serum sample 3 spike recovery	96%	—	—	SI Table Exact Reported	SI p. 8 · Table S2 · Table S2
serum sample 3 sensor glucose	24.2 mM	—	—	SI Table Exact Reported	SI p. 8 · Table S2 · Table S2

vertical NiCo(1:1)-MOFNs array on nanoporous gold, 4 h growth · Electrode

i-t in 0.1 M NaOH containing 4 mM glucose at 0.5 V for 12000 s; CV in 0.1 M NaOH at 50 mV s^-1 for 200 cycles; ambient storage one month

Atmosphere: N2-saturated electrolyte per electrochemical measurements
Geometry: three-electrode
Context: target sample
Measurement source: 657 · 3.4.2 Selectivity, reproducibility and stability · Fig. 5d, Fig. S11

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CV cycling redox peak retentionMarked as a best value within this paper	94.91% after 200 cycles	—	—	Text Exact Reported	657 · 3.4.2 Selectivity, reproducibility and stability · Fig. 5d inset
chronoamperometric current retentionMarked as a best value within this paper	93.64% after 12000 s	—	—	Text Exact Reported	657 · 3.4.2 Selectivity, reproducibility and stability · Fig. 5d
chronoamperometric test duration	12000 s	—	—	Text Exact Reported	657 · 3.4.2 Selectivity, reproducibility and stability · Fig. 5d
ambient storage current retentionMarked as a best value within this paper	95% after one month	—	—	Text Rounded Reported	657 · 3.4.2 Selectivity, reproducibility and stability