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Record W3163372389 · doi:10.22215/etd/2014-10093

Development of Biocompatible Aptamer Films as Smart Materials for Novel Fertilizer Systems

2014· dissertation· en· W3163372389 on OpenAlexaff
Amanda Foster

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldMaterials Science
TopicPolymer Surface Interaction Studies
Canadian institutionsCarleton University
Fundersnot available
KeywordsAptamerNanotechnologyNucleasePolyelectrolyteBiocompatible materialMaterials scienceBiocompatibilityChemistryBiophysicsBiomedical engineeringEngineeringBiologyPolymerBiochemistryMolecular biologyDNA

Abstract

fetched live from OpenAlex

Aptamers are short, single stranded nucleic acids that fold into welldefined 3D structures which bind to a single target molecule with affinities and specificities that can rival or in some cases exceed those of antibodies.Unlike antibodies, aptamers can be chemically synthesized, which eliminates the need for animals, and can be used under non-physiological as well as physiological conditions.Due to their chemical nature, aptamers can be readily modified with reporter molecules and other functional groups making them versatile analytical tools with great promise in biotechnological applications.The compatibility of aptamers with nanostructures such as thin films, in combination with their affinity, selectivity, and conformational changes upon target interaction could set the foundation for the development of smart materials.This research will focus on development of a biocompatible aptamer-polyelectrolyte film system for use in controlled-release applications.We will study the efficacy and feasibility of this system.In doing this, we demonstrated the ability of the sulforhodamine B aptamer to function while sequestered in a chitosan-hyaluronan film matrix (Chapter 2).Our results also suggest that deposition conditions such as rinsing time and volume play a strong role in the internal film interactions and growth mechanism.As a secondary objective, the protective role of the polyelectrolytes against nuclease-mediated aptamer degradation was investigated (Chapter 3).Degradation remains one of the biggest challenges in nucleic acid-based technologies.This research has the potential to revolutionize materials used in iii controlled-release platforms with possible application to fertilizer systems which will be discussed.iv

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)0.000
metaresearch head score (Gemma)0.000
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: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.039
GPT teacher head0.319
Teacher spread0.280 · 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

Citations3
Published2014
Admission routes1
Has abstractyes

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