Evidence map›Paper›PMID 35102729›Full record

ArticleJournal of biomedical optics2022

Optofluidic flow meter for sub-nanoliter per minute flow measurements.

Jalal Sadeghi, Paul N Patrone, Anthony J Kearsley, Gregory A Cooksey

Open access · goldAbstract read
In one paragraph

Article in Journal of biomedical optics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 43% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 6 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Jalal SadeghiUniversity of Maryland, Department of Chemistry and Biochemistry, College Park, Maryland, United States.
Paul N PatroneNational Institute of Standards and Technology, Applied and Computational Mathematics Division, Gait, United States.
Anthony J KearsleyNational Institute of Standards and Technology, Applied and Computational Mathematics Division, Gait, United States.
Gregory A CookseyNational Institute of Standards and Technology, Microsystems and Nanotechnology Division, Gaithersbu, United States.
National Institute of Standards and Technology · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

significancePerformance improvements in microfluidic systems depend on accurate measurement and fluid control on the micro- and nanoscales. New applications are continuously leading to lower volumetric flow rates.

aimWe focus on improving an optofluidic system for measuring and calibrating microflows to the sub-nanoliter per minute range. APPROACH: Measurements rely on an optofluidic system that delivers excitation light and records fluorescence in a precise interrogation region of a microfluidic channel. Exploiting a scaling relationship between the flow rate and fluorescence emission after photobleaching, the system enables real-time determination of flow rates.

resultsHere, we demonstrate improved calibration of a flow controller to 1% uncertainty. Further, the resolution of the optofluidic flow meter improved to less than 1  nL  /  min with 5% uncertainty using a molecule with a 14-fold smaller diffusion coefficient than our previous report.

conclusionsWe demonstrate new capabilities in sub-nanoliter per minute flow control and measurement that are generalizable to cutting-edge light-material interaction and molecular diffusion for chemical and biomedical industries.

Indexed as

Microfluidic Analytical TechniquesMicrofluidicscalibrationflow metermolecular diffusionoptofluidicsphotobleachingsub-nanoliter per minute flow

Identifiers

PMID35102729
PMCPMC8802908
OpenAlexW4226265673

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.