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Record W2553431696

Active optofluidic structures for analyte concentration and sensing

2013· article· en· W2553431696 on OpenAlexaff
Carlos Escobedo

Bibliographic record

VenueJournal of Physical Chemistry & Biophysics · 2013
Typearticle
Languageen
FieldEngineering
TopicMicrofluidic and Bio-sensing Technologies
Canadian institutionsQueen's University
Fundersnot available
KeywordsAnalyteMicrofluidicsElectrokinetic phenomenaNanotechnologyMaterials scienceLab-on-a-chipBiosensorMicrofluidic chipChemistryChromatography
DOInot available

Abstract

fetched live from OpenAlex

O arrays of metallic nanoholes have demonstrated great potential as sensors for the detection of analytes, including biomarkers for early diagnosis of diseases and viruses. These nanoplasmonic structures have been integrated into microfluidic environments in lab-on-chip formats towards the development of commercial-competitive biochemical diagnostics. The use of nanohole arrays in flow-through fashion has demonstrated additional benefits in terms of transport, such as targeted analyte delivery to the active sensing surface, effective analyte utilization and faster response times. In many applications, however, sensing must be achieved using samples with very low concentration of the target analyte. In order to overcome this challenge, concentration and purification stages are commonly employed before sensing. Among different approaches for achieving analyte preconcentration, electrokinetic techniques have demonstrated suitable for on-chip integration. The metallic nature of nanohole arrays offers the possibility to extend their use as active concentrators through electric field gradient focusing (EFGF) and the utilization of a pressure bias. Here we present the additional capabilities of the optofluidic structures to tailor the final concentration and spatial location of the analyte within the microfluidic chip, and the possibility to achieve transport control of the concentrated analyte using the nanoplasmonic structure as active switch. These demonstrated abilities extend the potentials of metallic nanohole arrays to achieve transport, concentration, active control and sensing using the same nanoplasmonic structure. Carlos Escobedo, J Phys Chem Biophys 2013, 3:5 http://dx.doi.org/10.4172/2161-0398.S1.004

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 distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation 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 score0.021
Threshold uncertainty score0.474

Codex and Gemma teacher scores by category

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 communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.007
GPT teacher head0.214
Teacher spread0.207 · 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 teacher head, 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
Published2013
Admission routes1
Has abstractyes

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