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Record W7132985492

Using The Protein Corona to Train Deep Neural Networks and Build Patient-specific Nanomaterials

2019· dissertation· W7132985492 on OpenAlexaff
James Lazarovits

Bibliographic record

VenueTSpace · 2019
Typedissertation
Language
FieldMaterials Science
TopicNanoparticle-Based Drug Delivery
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsNanomaterialsNanomedicineNanoparticleBiodistributionNanobiotechnologyCorona (planetary geology)
DOInot available

Abstract

fetched live from OpenAlex

When nanoparticles are exposed to biological environments, proteins rapidly adsorb to the surface and form a structure known as the protein corona. The protein corona always forms irrespective of the material composition, surface chemistry, size and shape. This interfacial network of protein is one of the biggest banes to nanomedicine as it mediates how nanoparticles behave in the body despite our synthetic control. Investigations outside the body have shown that it is possible to predict protein corona adsorption based on nanoparticle size, shape and surface chemistry. At present, no insight and forecast exists of protein assembly patterns in vivo, nor has this interfacial chemistry been used toward building new applications in medicine. This thesis presents an original contribution to biomedical nanotechnology as it exploits the protein corona across two themes with a collective effort to improve translation of nanomaterials into the clinic. First I demonstrate that the protein corona can be deciphered and used as input data to train a neural network that is able to predict nanoparticle biodistribution in an animal model. Second, a new class of nanomaterial is created by isolation, separation and materials ligation of the protein corona from a nanoparticle template. The latter provides a solution to a major problem facing nanomaterial design; the engineering of size and shape tunable organic nanomaterials under 100 nm. They are biodegradable and do not activate innate or adaptive immunity following single and repeated administrations in vivo. Together, these findings provide insight and foundational materials design to create a patient-specific nanomaterial that can have predictable biodistribution inside of the body.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.006
Threshold uncertainty score0.013

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.001

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.

Opus teacher head0.027
GPT teacher head0.294
Teacher spread0.267 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2019
Admission routes1
Has abstractyes

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