A 3-D-Printed Integrated PCB-Based Electrochemical Sensor System
Bibliographic record
Abstract
In this paper, we report a fully 3-D-printed, flexible, amperometric lactate sensor system with a 3-D-printed, integrated electrochemical circuit platform, a so-called potentiostat, realized via a novel 3-D printing method. First, a lactate sensor was designed in a three-electrode configuration with a layer of deposited enzyme on the conductive silver electrodes. The thin silver electrodes were printed on a flexible substrate. Second, a highly integrated potentiostat circuit prototype was designed and printed on a rigid epoxy board. Both sensor electrodes and printed circuit board (PCB) were fabricated using a novel direct ink writing (DIW) technology with highly viscous silver nanoparticle ink. The fully 3-D-printed potentiostat system along with the sensor demonstrated reliable lactate detection for concentrations in the range of 0-20 mM. The purely additive manufacturing strategy of DIW demonstrated the capability of 3-D printing double-sided circuits with high-density chip-on-board designs as well as the ability to significantly reduce the lead time of PCB prototyping. The 3-D-printed electrochemical sensor system is suitable for wearable devices for continuous monitoring of human metabolisms.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".