Surface Enhanced Raman Spectroscopy (SERS) Detection of β-Estradiol in Milk by Molecularly Imprinted Polymers on Biogenic Silica and Silver Nanoparticles
Why this work is in the frame
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Bibliographic record
Abstract
The highly sensitive surfaced-enhanced Raman spectroscopy (SERS) and the directive selection of molecularly imprinted polymers (MIP) provided a simple and rapid method to detect the content of β-estradiol in milk sample which exists in low concentration at natural level. The MIPs were synthesized by surface polymerization of β-estradiol (template), methacrylic acid (the monomer), and ethylene glycol dimethacrylate (cross-linking agent), with 4,4’ azobis (4-cyanopentanoyl) chloride initiator covalently grafted on the biogenic silica surface. The NIPs were also synthesized in a similar version to MIPs, but polymerization done without β-estradiol template. The surface morphology of MIPs and NIPs by scanning electron microscopy (SEM) showed a clear difference on their structures. Silver and silica nanoparticles were served as SERS active substrates for signal enhancement. The limit of detection (LOD) for MIPs-silver nanoparticles was 1.0 ppm, whereas for MIPs-silica, the LOD was 0.78 ppm. As the result, biogenic silica nanoparticles gave a more enhanced Raman signal compared to the conventional silver nanoparticles. Discipline: Chemistry Faculty Mentor: Dr. Samuel Mugo
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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 | 0.001 | 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 | 0.001 | 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