Evidence map›Paper›PMID 37738337›Full record

ArticleScience advances2023

An antibody-based molecular switch for continuous small-molecule biosensing.

Ian A P Thompson, Jason Saunders, Liwei Zheng, Amani A Hariri, Nicolò Maganzini, Alyssa P Cartwright, Jing Pan, Steven Yee, Constantin Dory, Michael Eisenstein and 2 more

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
7.4field-weighted citation impact, top 2% 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

28 citing papers in PubMed, 48 citations in OpenAlex.

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  13. bioRxiv : the preprint server for biology · 2025
    Article
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  15. Article
  16. Article
  17. Generalizable Molecular Switch Designs forAccounts of chemical research · 2025
    Article
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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

12 authors at 2 institutions in 1 country.

Ian A P ThompsonDepartment of Electrical Engineering, Stanford University, Stanford, CA 94305, USA.ORCID 0000-0001-9733-9462
Jason SaundersDepartment of Electrical Engineering, Stanford University, Stanford, CA 94305, USA.ORCID 0009-0003-2819-8581
Liwei ZhengDepartment of Radiology, Stanford University, Stanford, CA 94305, USA.
Amani A HaririDepartment of Radiology, Stanford University, Stanford, CA 94305, USA.
Nicolò MaganziniDepartment of Electrical Engineering, Stanford University, Stanford, CA 94305, USA.
Alyssa P CartwrightDepartment of Electrical Engineering, Stanford University, Stanford, CA 94305, USA.ORCID 0000-0002-4211-0035
Jing PanDepartment of Mechanical and Aerospace Engineering, Herbert Wertheim College of Engineering, University of Florida, Gainesville, FL 32611, USA.ORCID 0000-0001-6081-3204
Steven YeeDepartment of Electrical Engineering, Stanford University, Stanford, CA 94305, USA.ORCID 0000-0003-2186-6244
Constantin DoryDepartment of Electrical Engineering, Stanford University, Stanford, CA 94305, USA.
Michael EisensteinDepartment of Electrical Engineering, Stanford University, Stanford, CA 94305, USA.
Jelena VuckovicDepartment of Electrical Engineering, Stanford University, Stanford, CA 94305, USA.ORCID 0000-0002-4603-9686
Hyongsok Tom SohDepartment of Electrical Engineering, Stanford University, Stanford, CA 94305, USA.ORCID 0000-0001-9443-857X
Stanford University · USUniversity of Florida · US

Funding

Wellcome Trust
6 · The paper itself

Abstract

We present a generalizable approach for designing biosensors that can continuously detect small-molecule biomarkers in real time and without sample preparation. This is achieved by converting existing antibodies into target-responsive "antibody-switches" that enable continuous optical biosensing. To engineer these switches, antibodies are linked to a molecular competitor through a DNA scaffold, such that competitive target binding induces scaffold switching and fluorescent signaling of changing target concentrations. As a demonstration, we designed antibody-switches that achieve rapid, sample preparation-free sensing of digoxigenin and cortisol in undiluted plasma. We showed that, by substituting the molecular competitor, we can further modulate the sensitivity of our cortisol switch to achieve detection at concentrations spanning 3.3 nanomolar to 3.3 millimolar. Last, we integrated this switch with a fiber optic sensor to achieve continuous sensing of cortisol in a buffer and blood with <5-min time resolution. We believe that this modular sensor design can enable continuous biosensor development for many biomarkers.

Indexed as

AntibodiesHydrocortisoneColoring AgentsEngineeringSignal TransductionAntibodiesColoring AgentsHydrocortisone

Identifiers

PMID37738337
PMCPMC10516488
OpenAlexW4386951819

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.