Light-Dependent Biosynthesis of Silver Nanoparticles Mediated by Cell Extract of Neochloris oleoabundans: an Investigation on Mechanism
Bibliographic record
Abstract
While biosynthesis of precious metal nanoparticles mediated by plants, bacteria, and fungi have been widely reported to be light-independent, it was demonstrated in my Lab that the synthesis of silver nanoparticles (AgNP) mediated by the cell extract of green alga Neochloris oleoabundans required light to take place. Chlorophylls were demonstrated to be an essential component mediating the reduction of Ag + and addition of extra chlorophyll would increase AgNP production. Rainbow tests revealed that exposure of reaction mixture to orange or red light could not lead to AgNP formation, although they are part of photosynthetic active radiance (PAR), indicating only photons of high energy levels among the PAR are capable of exciting the electrons of chlorophylls to a state that is sufficient for Ag + reduction. Furthermore, results of mass balance suggest that chlorophylls need to be recycled for the reaction to complete. The ultimate donors supplying electrons for chlorophyll recycle were hypothesized to be water molecules through water splitting, which can be catalyzed by photosynthetic enzyme complexes such as photosystem II that are readily available in cell extract of Neochloris oleoabudans.
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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 | 0.001 |
| 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 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".