Preparation of Well-Dispersed Superparamagnetic Iron Oxide Nanoparticles in Aqueous Solution with Biocompatible<i>N</i>-Succinyl-<i>O</i>-carboxymethylchitosan
Bibliographic record
Abstract
N -succinyl- O -carboxymethylchitosan (NSOCMCS), an amphiphilic polyelectrolyte with the property of biocompatibility and functional carboxyl groups, was used as a stabilizer to prepare a well-dispersed suspension of superparamagnetic Fe 3 O 4 nanoparticles, which were composed of a magnetite Fe 3 O 4 core and a NSOCMCS shell. The carboxyl groups of NSOCMCS can coordinate with Fe 3 O 4, which makes NSOCMCS chemically adsorb onto the surface of Fe 3 O 4 nanoparticles. The stabilizing mechanisms were proven to be both the steric hindrance and electrostatic repulsion arisen from the NSOCMCS. Transmission electron microscopy showed that the resulting Fe 3 O 4 particles were in spherical morphology with the diameter ranging from 12 to 18 nm. Magnetic property measurements indicated that NSOCMCS/Fe 3 O 4 nanoparticles preserved superparamagnetic behavior. In vitro biocompatibility studies showed that the NSOCMCS/Fe 3 O 4 nanoparticles had good cytocompatibility.
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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) | 0.000 | 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 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".