Sensing Application — High-performance field-effect transistor glucose biosensors based on bimetallic Ni/Cu metal-organic frameworks

5 measurement groups · 16 results

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

GA-Ni/Cu-MOFs (7:1)-FET · Electrode

Glucose response controls for GOD-GA-Ni-MOFs-FET, GA-Ni/Cu-MOFs (7:1)-FET and Ni/Cu-MOFs (7:1)-FET.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
control glucose response	GOD-GA-Ni-MOFs-FET gave non-continuous current change; GA-Ni/Cu-MOFs (7:1)-FET and Ni/Cu-MOFs (7:1)-FET showed poor response	—	—	Text Qualitative	6 · 3.3 · Fig. S12

GOD-GA-Ni/Cu-MOFs (7:1)-FET · Electrode

5 uL PBS blank followed by 5 uL glucose solutions from 1 uM to 50 mM; Vgs = -0.10 V and Vds = -0.10 V.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
prepared glucose solution concentrations	1 uM, 10 uM, 50 uM, 100 uM, 500 uM, 1 mM, 5 mM, 10 mM, 20 mM and 50 mM in PBS	—	—	Text Exact Reported	S2
tested glucose concentration range	1 uM-50 mM tested; current response saturated above 20 mM	—	—	Text Range	3,6 · 2.6; 3.3 · Fig. 4a,b
high-concentration sensitivity	10.96 uA cm^-2 mM^-1 in 100 uM-20 mM glucose	—	—	Text Exact Reported	6 · 3.3 · Fig. 4c; Table 1
high-range linear fitMarked as a best value within this paper	y = 33.78 + 10.96x; R2 = 0.9968	—	—	Text Exact Reported	6 · 3.3 · Fig. 4c
low-range linear fit	y = 2.02 + 26.05x; R2 = 0.9896	—	—	Text Exact Reported	6 · 3.3 · Fig. 4c
linear glucose detection rangeMarked as a best value within this paper	1 uM-20 mM, with two linear regions of 1-100 uM and 100 uM-20 mM	—	—	Text Range	6-7 · 3.3 · Fig. 4c; Table 1
limit of detectionMarked as a best value within this paper	0.51 uM	—	—	Text Exact Reported	6-7 · 3.3; Conclusion · Table 1; Formula S2
low-concentration sensitivityMarked as a best value within this paper	26.05 uA cm^-2 mM^-1 in 1-100 uM glucose	—	—	Text Exact Reported	6 · 3.3 · Fig. 4c; Table 1
response timeMarked as a best value within this paper	did not exceed 5 s	—	<=	Text Approximate	6 · 3.3 · Fig. 4a inset

GOD-GA-Ni/Cu-MOFs (7:1)-FET · Electrode

Glucose concentration tests of three GOD-GA-Ni/Cu-MOFs (7:1)-FET devices under the same condition.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
three-device reproducibility RSDMarked as a best value within this paper	3.32%	—	—	Text Exact Reported	7 · 3.3 · Fig. S15

GOD-GA-Ni/Cu-MOFs (7:1)-FET · Electrode

100 uM glucose and interfering substances including sucrose, fructose, uric acid, ascorbic acid, galactose and lactose added sequentially.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
specificity against interferencesMarked as a best value within this paper	Current decreased significantly when glucose was added; sucrose, fructose, UA, AA, galactose and lactose did not change current sequentially	—	—	Text Qualitative	7 · 3.3 · Fig. 5a; Fig. S16

GOD-GA-Ni/Cu-MOFs (7:1)-FET · Electrode

Sensor kept under constant temperature and humidity; glucose response tested every two days for one week and after 0, 1, 2 and 3 weeks.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
three-week storage lifetime	After three weeks the current was significantly reduced and glucose response became weaker	—	—	Text Qualitative	7 · 3.3 · Fig. S17
current signal loss after 2 days	2.12%	—	—	Text Exact Reported	7 · 3.3 · Fig. 5c
current signal loss after 4 days	16.72%	—	—	Text Exact Reported	7 · 3.3 · Fig. 5c
current signal loss after 6 days	20.60%	—	—	Text Exact Reported	7 · 3.3 · Fig. 5c