A New Field-Effect Transistor Based Sensor for Biosensing Applications
Bibliographic record
Abstract
This paper presents a new field-effect based sensor for biosensing applications. The sensor composed of a new structure that is based on the junction field effect transistor or JFET that is a well-known electronic transistor. To prepare the JFET for biosensing and solution-based sensing, the p-type JFET is opened from one side (the n-type layer is removed) allowing applying a solution containing bio-chemical substances on top. The opened-gate area consists of silicon with a very thin layer of SiO2, which is naturally grown on silicon when exposed to the environment. The p-type channel length between a source and drain is about 100 μm and its thickness is 1.6 μm with 1000 μm wideness. A common source design is introduced containing seven channels that further improves the sensing area (≈ 0.7 mm2). To demonstrate the biomolecular sensing capability of the open-gate junction field-e ffect transistor (OG-JFET), dried-DNA is used. Experimental analysis showing a sensitivity of 30 μA/DNA-Concentration (ng/uL) for OG-JFET toward dry DNA.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 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 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".