Evidence map›Paper›PMID 32230783›Full record

ArticleMicromachines2020

3D Hydrodynamic Focusing in Microscale Optofluidic Channels Formed with a Single Sacrificial Layer.

Erik S Hamilton, Vahid Ganjalizadeh, Joel G Wright, Holger Schmidt, Aaron R Hawkins

Abstract read
In one paragraph

Article in Micromachines, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Greatly Enhanced Single Particle Fluorescence Detection Using High Refractive Index Liquid-Core Waveguides.IEEE journal of selected topics in quantum electronics : a publication of the IEEE Lasers and Electro-optics Society
    Article
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

5 authors.

Erik S HamiltonElectrical and Computer Engineering, Brigham Young University, Provo, UT 84602, USA.ORCID 0000-0001-8532-0836
Vahid GanjalizadehElectrical and Computer Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA.
Joel G WrightElectrical and Computer Engineering, Brigham Young University, Provo, UT 84602, USA.
Holger SchmidtElectrical and Computer Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA.
Aaron R HawkinsElectrical and Computer Engineering, Brigham Young University, Provo, UT 84602, USA.ORCID 0000-0002-3882-0771

Funding

Multiplexed, Non-Amplified, Nucleic Acid-Based Identification of Multidrug Resistant Pathogens Using an Integrated Optofluidic PlatformR01AI116989 · NIAID · BRIGHAM YOUNG UNIVERSITY · PI HAWKINS, AARON R., PITT, WILLIAM G · 2015 to 2019
$5.4M
National Science Foundation CBET-1703058NIAID NIH HHS R01 AI116989NIH HHS 1R01AI116989NIH HHS 1R01EB028608
6 · The paper itself

Abstract

Optofluidic devices are capable of detecting single molecules, but greater sensitivity and specificity is desired through hydrodynamic focusing (HDF). Three-dimensional (3D) hydrodynamic focusing was implemented in 10-μm scale microchannel cross-sections made with a single sacrificial layer. HDF is achieved using buffer fluid to sheath the sample fluid, requiring four fluid ports to operate by pressure driven flow. A low-pressure chamber, or pit, formed by etching into a substrate, enables volumetric flow ratio-induced focusing at a low flow velocity. The single layer design simplifies surface micromachining and improves device yield by 1.56 times over previous work. The focusing design was integrated with optical waveguides and used in order to analyze fluorescent signals from beads in fluid flow. The implementation of the focusing scheme was found to narrow the distribution of bead velocity and fluorescent signal, giving rise to 33% more consistent signal. Reservoir effects were observed at low operational vacuum pressures and a balance between optofluidic signal variance and intensity was achieved. The implementation of the design in optofluidic sensors will enable higher detection sensitivity and sample specificity.

Indexed as

3D hydrodynamic focusingbiosensorlab-on-a-chipliquid-core waveguidemicrofluidicmicroscale channeloptofluidicreservoir effectsingle layer

Identifiers

PMID32230783
PMCPMC7230747

What OpenQuestion holds

Textmetadata
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.