Evidence map›Paper›PMID 22148758›Full record

ArticleAnalytical chemistry2012

Multiplexed cancer biomarker detection using quartz-based photonic crystal surfaces.

Cheng-Sheng Huang, Vikram Chaudhery, Anusha Pokhriyal, Sherine George, James Polans, Meng Lu, Ruimin Tan, Richard C Zangar, Brian T Cunningham

Abstract read
In one paragraph

Article in Analytical chemistry, 2012. 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
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  3. Review
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  6. Review
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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

9 authors.

Cheng-Sheng HuangDepartment of Electrical and Computer Engineering, 1406 West Green Street, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States.
Vikram Chaudhery
Anusha Pokhriyal
Sherine George
James Polans
Meng Lu
Ruimin Tan
Richard C Zangar
Brian T Cunningham

Funding

Photonic Crystal Surfaces for Label-Free Detection and Fluorescence AmplificationR01GM086382 · NIGMS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI BOLLERO, GERMAN A, CUNNINGHAM, BRIAN T. · 2009 to 2012
$1.7M
NIGMS NIH HHS GM086382ANIGMS NIH HHS R01 GM086382
6 · The paper itself

Abstract

A photonic crystal (PC) surface is demonstrated as a high-sensitivity platform for detection of a panel of 21 cancer biomarker antigens using a sandwich enzyme-linked immunosorbent assay (ELISA) microarray format. A quartz-based PC structure fabricated by nanoimprint lithography, selected for its low autofluorescence, supports two independent optical resonances that simultaneously enable enhancement of fluorescence detection of biomarkers and label-free quantification of the density of antibody capture spots. A detection instrument is demonstrated that supports fluorescence and label-free imaging modalities, with the ability to optimize the fluorescence enhancement factor on a pixel-by-pixel basis throughout the microarray using an angle-scanning approach for the excitation laser that automatically compensates for variability in surface chemistry density and capture spot density. Measurements show that the angle-scanning illumination approach reduces the coefficient of variation of replicate assays by 20-99% compared to ordinary fluorescence microscopy, thus supporting reduction in limits of detectable biomarker concentration. Using the PC resonance, biomarkers in mixed samples were detectable at the lowest concentrations tested (2.1-41 pg/mL), resulting in a three-log range of quantitative detection.

Indexed as

Biosensing TechniquesPhotonsQuartzAntibodies, ImmobilizedBiomarkers, TumorEnzyme-Linked Immunosorbent AssayHumansImmunoassayLasersNeoplasmsProtein Array AnalysisSpectrometry, FluorescenceSurface PropertiesAntibodies, ImmobilizedBiomarkers, TumorQuartz

Identifiers

PMID22148758
PMCPMC3264776

What OpenQuestion holds

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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.