Sensing Application — Chemical sensors based on ionically conductive metal-organic frameworks for selective cadaverine detection

Measurement evidence

Sensing Application

Chemical sensors based on ionically conductive metal-organic frameworks for selective cadaverine detection · Zhang S., Li L., Lu Y. et al. · Journal of Materials Chemistry C · 2022 · 5497-5504

10 measurement groups · 31 results

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

Capacitive vapour sensing of cadaverine

IC-CoTHPP thin-film sensor on ITO interdigital electrode · Electrode

Cadaverine vapour response at 0.2 and 1 uL, used in metal-ion comparison.

Temperature: room temperature
Atmosphere: ambient air
Geometry: ITO interdigital electrode; TH2827C LCR meter, 400 Hz and 1 V
Context: pristine CoTHPP sensor
Measurement source: SI p.6-p.7 · Supporting Information · Fig. S4 and Fig. S5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
IC-CoTHPP response to 0.2 uL cadaverine	approximately 5%	—	—	Figure Axis Approximate	SI p.6 · Supporting Information · Fig. S4
IC-CoTHPP response to 1 uL cadaverine	approximately 34%	—	—	Figure Axis Approximate	SI p.7 · Supporting Information · Fig. S5

Cadaverine calibration and LOD analysis by capacitance response

IC-CuTHPP thin-film sensor on ITO interdigital electrode · Electrode

Cadaverine doses of 0.02, 0.04, 0.06, 0.08, 0.1, 0.2, 0.3, 0.5 and 1 uL; log-scale fits used for LOD.

Temperature: room temperature
Atmosphere: ambient air
Geometry: 0.1 L chamber; 400 Hz, 1 V LCR readout
Context: pristine CuTHPP sensor exposed to cadaverine
Measurement source: main p.3-p.4, article pp.5499-5500 · Results and discussion · Fig. 4; Fig. S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Capacitance after 1 uL cadaverine exposure	less than 20 pF	—	<	Text Range	main p.4, article p.5500 · Results and discussion · Fig. 4c
Minimum demonstrated cadaverine dose	20 nL / 0.02 uL cadaverine detected	—	—	Text Exact Reported	main p.3, article p.5499 · Results and discussion · Fig. 4a
Estimated cadaverine limit of detectionMarked as a best value within this paper	4.9 nL	—	rough estimation	Calculated From Reported Approximate	SI p.2 · Calculation method for the detection limit
LOD calculation RMS	RMS=0.044%	—	—	Text Exact Reported	SI p.2 · Calculation method for the detection limit
LOD calculation calibration slope	slope=1.76	—	—	Text Exact Reported	SI p.2 · Calculation method for the detection limit
IC-CuTHPP response to 0.3 uL cadaverine	65%	—	—	Text Rounded Reported	main p.4, article p.5500 · Results and discussion · Fig. 4b
IC-CuTHPP response to 0.5 uL cadaverine	84%	—	—	Text Rounded Reported	main p.4, article p.5500 · Results and discussion · Fig. 4b
IC-CuTHPP response to 1 uL cadaverine in calibrationMarked as a best value within this paper	99%	—	—	Text Rounded Reported	main p.4, article p.5500 · Results and discussion · Fig. 4b
Response at 20 nL cadaverine	0.5% through capacitance	—	—	Text Exact Reported	main p.3, article p.5499 · Results and discussion · Fig. 4a
Signal-to-noise ratio at 0.02 uL cadaverine	10.59	—	—	Text Exact Reported	main p.3, article p.5499 · Results and discussion · Fig. 4a

Capacitive vapour sensing of cadaverine

IC-CuTHPP thin-film sensor on ITO interdigital electrode · Electrode

Cadaverine vapour response at 0.2 and 1 uL in a 0.1 L Teflon chamber.

Temperature: room temperature
Atmosphere: ambient air
Geometry: ITO interdigital electrode; TH2827C LCR meter, 400 Hz and 1 V
Context: pristine CuTHPP sensor exposed to cadaverine
Measurement source: main p.6, article p.5502 · Sensing experiments · Fig. 2, Fig. S4, Fig. S5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
IC-CuTHPP response to 0.2 uL cadaverineMarked as a best value within this paper	40%	—	average response	Text Rounded Reported	main p.3, article p.5499 · Results and discussion · Fig. 2b
IC-CuTHPP response to 1 uL cadaverineMarked as a best value within this paper	99%	—	average response	Text Rounded Reported	main p.3, article p.5499 · Results and discussion · Fig. 2b

Real-time meat spoilage demonstration

IC-CuTHPP thin-film sensor on ITO interdigital electrode · Electrode

Bad meat product placed near sensor in a homemade sealed chamber; response monitored over time.

Atmosphere: sealed chamber headspace
Geometry: IC-CuTHPP sensor near meat sample
Context: pristine CuTHPP sensor exposed to decaying meat headspace
Measurement source: main p.6, article p.5502 · Results and discussion · Fig. 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Meat spoilage demonstration maximum plotted response	approximately 75% response	—	—	Figure Axis Approximate	main p.6, article p.5502 · Results and discussion · Fig. 6b
Meat spoilage demonstration response time to near saturation	approximately 120 min to near-saturation response	—	—	Figure Axis Approximate	main p.6, article p.5502 · Results and discussion · Fig. 6b

Response-time extraction from capacitance-time curve

IC-CuTHPP thin-film sensor on ITO interdigital electrode · Electrode

Response time defined as the time for capacitance to decrease to 90% of saturation value.

Temperature: room temperature
Atmosphere: ambient air
Geometry: IC-CuTHPP capacitive sensor
Context: pristine CuTHPP sensor exposed to cadaverine
Measurement source: main p.4, article p.5500 · Results and discussion · Fig. 4c,d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Response time to 1 uL cadaverineMarked as a best value within this paper	13.5 s	—	estimated	Text Approximate	main p.4, article p.5500 · Results and discussion · Fig. 4c
Uniform response time at 0.02 and 0.04 uL cadaverine	approximately 13 s	—	approximately	Text Approximate	main p.4, article p.5500 · Results and discussion · Fig. 4d

Device-to-device response and long-term capacitance stability test

IC-CuTHPP thin-film sensor on ITO interdigital electrode · Electrode

26 devices tested for cadaverine response; long-term stability after 1 uL cadaverine detection under ambient air.

Temperature: room temperature
Atmosphere: ambient air
Geometry: IC-CuTHPP capacitive sensors
Context: pristine CuTHPP sensors and cadaverine-exposed stability state
Measurement source: main p.5, article p.5501 · Results and discussion · Fig. 5a,b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Number of devices in uniformity test	26 devices	—	—	Caption Exact Reported	main p.5, article p.5501 · Results and discussion · Fig. 5a
Capacitance during long-term post-detection stability	around 2.6 nF	—	around	Text Approximate	main p.5, article p.5501 · Results and discussion · Fig. 5b
Long-term capacitance stability duration	over 10 000 s	—	>	Text Range	main p.5, article p.5501 · Results and discussion · Fig. 5b

Vapour selectivity and reversibility test against common VOCs

IC-CuTHPP thin-film sensor on ITO interdigital electrode · Electrode

0.2 uL vapour exposures to toluene, n-hexane, ethanol, dimethyl carbonate, acetone, chloroform and cadaverine.

Temperature: room temperature
Atmosphere: ambient air
Geometry: IC-CuTHPP capacitive sensor in homemade chamber
Context: pristine CuTHPP sensor
Measurement source: main p.6, article p.5502 · Results and discussion · Fig. 5c; Fig. S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cadaverine response reversibilityMarked as a best value within this paper	irreversible response	—	—	Text Qualitative	main p.6, article p.5502 · Results and discussion · Fig. 5c; Fig. S7
IC-CuTHPP response to 0.2 uL chloroform	approximately 16%	—	—	Figure Axis Approximate	main p.5, article p.5501 · Results and discussion · Fig. 5c
IC-CuTHPP response to 0.2 uL toluene	approximately 5%	—	—	Figure Axis Approximate	main p.5, article p.5501 · Results and discussion · Fig. 5c
Common VOC response reversibility	fully reversible for toluene, n-hexane, ethanol, DMC, acetone and chloroform	—	—	Text Qualitative	main p.6, article p.5502 · Results and discussion · Fig. 5c; Fig. S7

Capacitive vapour sensing of cadaverine

IC-MgTHPP thin-film sensor on ITO interdigital electrode · Electrode

Cadaverine vapour response at 0.2 and 1 uL, used in metal-ion comparison.

Temperature: room temperature
Atmosphere: ambient air
Geometry: ITO interdigital electrode; TH2827C LCR meter, 400 Hz and 1 V
Context: pristine MgTHPP sensor
Measurement source: SI p.6-p.7 · Supporting Information · Fig. S4 and Fig. S5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
IC-MgTHPP response to 0.2 uL cadaverine	approximately 5%	—	—	Figure Axis Approximate	SI p.6 · Supporting Information · Fig. S4
IC-MgTHPP response to 1 uL cadaverine	approximately 28%	—	—	Figure Axis Approximate	SI p.7 · Supporting Information · Fig. S5

Capacitive vapour sensing of cadaverine

IC-NiTHPP thin-film sensor on ITO interdigital electrode · Electrode

Cadaverine vapour response at 0.2 and 1 uL, used in metal-ion comparison.

Temperature: room temperature
Atmosphere: ambient air
Geometry: ITO interdigital electrode; TH2827C LCR meter, 400 Hz and 1 V
Context: pristine NiTHPP sensor
Measurement source: main p.3, article p.5499 · Results and discussion · Fig. 2, Fig. S4, Fig. S5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
IC-NiTHPP response to 0.2 uL cadaverine	approximately 11%	—	—	Figure Axis Approximate	main p.3, article p.5499 · Results and discussion · Fig. 2b
IC-NiTHPP response to 1 uL cadaverine	approximately 43%	—	—	Figure Axis Approximate	SI p.7 · Supporting Information · Fig. S5

Capacitive vapour sensing of cadaverine

IC-ZnTHPP thin-film sensor on ITO interdigital electrode · Electrode

Cadaverine vapour response at 0.2 and 1 uL, used in metal-ion comparison.

Temperature: room temperature
Atmosphere: ambient air
Geometry: ITO interdigital electrode; TH2827C LCR meter, 400 Hz and 1 V
Context: pristine ZnTHPP sensor
Measurement source: SI p.6-p.7 · Supporting Information · Fig. S4 and Fig. S5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
IC-ZnTHPP response to 0.2 uL cadaverine	approximately 8%	—	—	Figure Axis Approximate	SI p.6 · Supporting Information · Fig. S4
IC-ZnTHPP response to 1 uL cadaverine	approximately 43%	—	—	Figure Axis Approximate	SI p.7 · Supporting Information · Fig. S5