Antibody Functionalised Gold Nanoprobes Based Colorimetric Assay for the Direct Detection of Phenylurea Herbicide
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
One-step homogeneous colorimetric immunoassay format for direct detection of herbicide diuron is reported. Gold nanoparticles (30 nm) functionalised with specific anti-diuron antibody was used as bioprobes for the development of non-crosslinking hybridization method, where aggregation of the gold-nanoprobes is induced by an increasing salt concentration, and is prevented by the amount of antigen (diuron) present in sample solution. The aggregation profile of the antibody functionalised gold nanoparticles directed by the immunoreaction was investigated using transmission electron microscopy (TEM), dynamic light scattering (DLS) and was further confirmed colorimetrically by measuring the change in the absorption ratio (620/520 nm) with increasing amounts of diuron. The assay exhibited an excellent sensitivity and specificity based on absorbance profile showing the dynamic response range from 0.1-50 ng/mL for diuron with a detection limit of ~5 ng/mL. The new technique could be used for fast, high-throughput screening of pesticides in environmental diagnostics at a very low cost.
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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 it