Evidence map›Paper›PMID 40705439›Full record

ArticleACS sensors2025

A Dual-Readout Photonic Sensor for Simultaneous Measurement of Enzyme Activity and Concentration.

Jordan N Butt, Daniel J Steiner, Michael R Bryan, Katelin E Mann, Benjamin L Miller

Abstract read
In one paragraph

Article in ACS sensors, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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.

Jordan N ButtDepartment of Chemistry, University of Rochester, Rochester, New York 14627, United States.
Daniel J SteinerDepartment of Biochemistry and Biophysics, University of Rochester, Rochester, New York 14642, United States.
Michael R BryanDepartment of Biochemistry and Biophysics, University of Rochester, Rochester, New York 14642, United States.ORCID 0000-0002-3718-2691
Katelin E MannThe Institute of Optics, University of Rochester, Rochester, New York 14627, United States.
Benjamin L MillerDepartment of Biochemistry and Biophysics, University of Rochester, Rochester, New York 14642, United States.ORCID 0000-0001-9168-8047

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Enzyme assays are a cornerstone of basic biology and clinical diagnosis. Typically, enzyme activity is measured, but concentration of the enzyme is also of interest, as are comparisons between concentration and activity. In these situations, separate concentration (i.e., ELISA) and activity (i.e., absorbance) assays are required to fully quantify. Here, we report a multiplex disposable photonic biosensor for simultaneous measurement of enzyme activity and concentration. Capture of the enzyme by a ring resonator-bound antibody produces a red shift in resonance, which can be referenced to a nonspecific binding control. At the same time, enzyme-mediated degradation of a ring-bound substrate produces a resonance blue shift, which can be referenced to a peptide inert to enzymatic cleavage. We tested the dual assay with human Cathepsin-L, dysfunction of which is a hallmark of several diseases, including COVID-19, kidney failure, and cancer. Both assays were found to be well-behaved analytically, with lower limits of detection of 2.0 ng·mL

Indexed as

Biosensing TechniquesEnzyme AssaysCOVID-19HumansLimit of DetectionPhotonsSARS-CoV-2cathepsinenzyme assayphotonic integrated circuitproteasering resonator

Identifiers

PMID40705439
PMCPMC12379170

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Registered trials

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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.