Sensing Application — Superhydrophilic hydrogel-enhanced conductive MOF-based wearable sweat sensors with anti-lipid biofouling capability

Measurement evidence

Sensing Application

Superhydrophilic hydrogel-enhanced conductive MOF-based wearable sweat sensors with anti-lipid biofouling capability · Liang C., Zhang H., Zhang Z. et al. · Microchemical Journal · 2025 · 114302

7 measurement groups · 25 results

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

Amperometric/DPV dopamine detection in wearable patch context

Hydrogel-assisted Ni-HAB MOF sweat sensor · Electrode

Hydrogel-integrated Ni-HAB MOF-based sweat sensor, applied potential 0.2 V vs Ag/AgCl, DA range 0-10 uM.

Geometry: Wearable PI/Au/Ag-AgCl/Ni-HAB patch with PDA-PAM-CC hydrogel layer.
Context: hydrogel-assisted composite sensor
Measurement source: 8 · 3.4 · Fig. 5d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Applied potential for hydrogel-integrated DA detection	0.2 V vs Ag/AgCl	—	—	Text Exact Reported	8 · 3.4 · Fig. 5d
Hydrogel-assisted DA detection range	0-10 uM	—	—	Text Exact Reported	8 · 3.4 · Fig. 5d
Hydrogel-assisted DA calibration coefficient	R2 > 0.99	—	—	Text Approximate	8 · 3.4 · Fig. 5d

Continuous monitoring durability in lipid-containing sweat

Hydrogel-assisted Ni-HAB MOF sweat sensor · Electrode

Comparative in situ monitoring of hydrogel-integrated and hydrogel-free Ni-HAB MOF sensors in lipid-containing sweat.

Geometry: Wearable patch with or without PDA-PAM-CC hydrogel layer.
Context: hydrogel-assisted composite sensor versus bare Ni-HAB patch
Measurement source: 8 · 3.4 · Fig. 5e-f; Figs. S15-S17

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Bare Ni-HAB sensor signal attenuation	15.7 % signal attenuation within first 2 min	—	—	Text Exact Reported	8 · 3.4 · Fig. 5e
Bare MOF sensor complete signal loss time	complete signal loss after 24 min	—	—	Text Exact Reported	8 · 3.4 · Fig. 5f
Hydrogel-integrated current retention during continuous monitoringMarked as a best value within this paper	>99 % retention during 30 min	—	—	Text Approximate	8 · 3.4 · Fig. 5e
DA concentration variance with hydrogel assistanceMarked as a best value within this paper	0.052 +/- 0.0031 uM	—	+/- 0.0031 uM	Text Exact Reported	8 · 3.4 · Fig. 5f
Hydrogel-assisted DA range in lipid-sweat mixture	0-250 uM	—	—	Caption Exact Reported	17 · Supporting Information · Fig. S16

DPV detection of AA and UA

Ni-HAB MOF electrode · Electrode

DPV detection of ascorbic acid and uric acid; ranges in SI caption: AA 0-300 uM, UA 0-330 uM.

Context: bare Ni-HAB MOF electrode
Measurement source: 15 · Supporting Information · Fig. S14

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
AA response potential	0.30 V vs Ag/AgCl	—	—	Text Exact Reported	6 · 3.3 · Fig. S14
AA detection range	0-300 uM	—	—	Caption Exact Reported	15 · Supporting Information · Fig. S14
AA sensitivity	116.09 nA uM-1 cm-2	0.11609 uA uM^-1 cm^-2	—	Text Exact Reported	6 · 3.3 · Fig. S14
UA response potential	0.48 V vs Ag/AgCl	—	—	Text Exact Reported	6 · 3.3 · Fig. S14
UA detection range	0-330 uM	—	—	Caption Exact Reported	15 · Supporting Information · Fig. S14
UA sensitivity	155.53 nA uM-1 cm-2	0.15553 uA uM^-1 cm^-2	—	Text Exact Reported	6 · 3.3 · Fig. S14

DPV for physiological dopamine range

Ni-HAB MOF electrode · Electrode

Artificial sweat pH 5.5; dopamine concentration range 0-20 uM from supplementary Fig. S11/S12.

Geometry: Ni-HAB working electrode in three-electrode cell.
Context: bare Ni-HAB MOF electrode
Measurement source: 6 · 3.3 · Figs. S11-S12

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
DA detection limitMarked as a best value within this paper	18 nM	0.018 uM	—	Text Exact Reported	6 · 3.3 · Figs. S11-S12
DA characteristic peak potential	0.18 V vs Ag/AgCl	—	—	Text Exact Reported	6 · 3.3 · Figs. S11-S12
DA sensitivityMarked as a best value within this paper	0.477 uA uM-1 cm-2	—	—	Text Exact Reported	6 · 3.3 · Figs. S11-S12

Differential pulse voltammetry (DPV)

Ni-HAB MOF electrode · Electrode

Artificial sweat, pH 5.5 unless otherwise noted; 0-0.6 V vs Ag/AgCl, 4 mV step, 0.2 s pulse width, 0.5 s pulse period, 50 mV pulse amplitude; dopamine concentration range 0-285 uM.

Geometry: Three-electrode configuration; Ni-HAB working electrode, Ag/AgCl reference, Pt counter.
Context: bare Ni-HAB MOF electrode
Measurement source: 3 · 2.5.2 · Fig. 4c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
DA calibration linear fit coefficient	R2 > 0.99	—	—	Text Approximate	5 · 3.3 · Fig. 4c
DA detection linear/dynamic rangeMarked as a best value within this paper	0-285 uM	—	—	Text Exact Reported	5 · 3.3 · Fig. 4c

DPV anti-interference test

Ni-HAB MOF electrode · Electrode

DA detection in the presence of NaCl, KCl, urea, glucose, glycine, leucine, and lactic acid.

Context: bare Ni-HAB MOF electrode
Measurement source: 6 · 3.3 · Fig. 4f; Fig. S13

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Response to common sweat interferents	Negligible current changes for NaCl, KCl, urea, glucose, glycine, leucine, and lactic acid	—	—	Text Qualitative	6 · 3.3 · Fig. 4f

SI comparative performance table for DA detection

Ni-HAB MOF electrode · Electrode

Tab. S1 compares Ni-HAB MOF electrode DA sensing against other MOFs and conventional electrodes; only the first-hand Ni-HAB row is extracted as this work.

Geometry: Ni-HAB MOF electrode
Context: bare Ni-HAB MOF electrode, this work row
Measurement source: 20 · Supporting Information · Tab. S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Table S1 Ni-HAB DA LODMarked as a best value within this paper	18 nM	0.018 uM	—	SI Table Exact Reported	20 · Supporting Information · Tab. S1
Table S1 Ni-HAB DA linear rangeMarked as a best value within this paper	0~285 uM	—	—	SI Table Exact Reported	20 · Supporting Information · Tab. S1
Table S1 Ni-HAB selectivity interferents	NaCl, KCl, Urea, Glu, Gly, Leu, LA	—	—	SI Table Qualitative	20 · Supporting Information · Tab. S1
Table S1 Ni-HAB DA sensitivityMarked as a best value within this paper	0.477 uA uM-1 cm-2	—	—	SI Table Exact Reported	20 · Supporting Information · Tab. S1
Table S1 Ni-HAB operating voltage	0.2 V	—	—	SI Table Exact Reported	20 · Supporting Information · Tab. S1