Evidence map›Paper›PMID 41451849›Full record

ArticleACS nano2026

Refractive Index Mapping below the Diffraction Limit via Single Molecule Localization Microscopy.

Simon Jaritz, Lukas Velas, Anna Gaugutz, Manuel Rufin, Philipp J Thurner, Orestis G Andriotis, Julian G Maloberti, Simon Moser, Alexander Jesacher, Gerhard J Schütz

Abstract read
In one paragraph

Article in ACS nano, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Simon JaritzInstitute of Applied Physics, TU Wien, 1060 Vienna, Austria.
Lukas VelasInstitute of Applied Physics, TU Wien, 1060 Vienna, Austria.
Anna GaugutzInstitute of Applied Physics, TU Wien, 1060 Vienna, Austria.ORCID 0009-0008-5662-7933
Manuel RufinInstitute of Lightweight Design and Structural Biomechanics, TU Wien, 1060 Vienna, Austria.
Philipp J ThurnerInstitute of Lightweight Design and Structural Biomechanics, TU Wien, 1060 Vienna, Austria.
Orestis G AndriotisInstitute of Lightweight Design and Structural Biomechanics, TU Wien, 1060 Vienna, Austria.ORCID 0000-0003-4107-1510
Julian G MalobertiInstitute of Biomedical Physics, Medical University of Innsbruck, Müllerstraße 44, 6020 Innsbruck, Austria.
Simon MoserInstitute of Biomedical Physics, Medical University of Innsbruck, Müllerstraße 44, 6020 Innsbruck, Austria.
Alexander JesacherInstitute of Biomedical Physics, Medical University of Innsbruck, Müllerstraße 44, 6020 Innsbruck, Austria.
Gerhard J SchützInstitute of Applied Physics, TU Wien, 1060 Vienna, Austria.ORCID 0000-0003-1542-1089

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Single molecule localization microscopy (SMLM) is a powerful method to image biological samples in three dimensions, below the diffraction limit of light microscopy. Beyond the position of the emitter, the shape of the single-molecule point spread function provides additional information, for example, about the refractive properties of the sample between the emitter and the glass coverslip. Here, we show that the combination of SMLM with atomic force microscopy (AFM) allows mapping of the refractive index of a biological sample at subdiffraction resolution and at a precision only limited by measurement errors of SMLM and AFM. We showcase the method by the determination of the refractive index of isolated single collagen fibrils. Variabilities both in refractive index and the swelling behavior of single fibrils upon drying and rehydration exposed deviations from the ensemble behavior, demonstrating differential hydration of single collagen fibrils. Mapping the refractive index along single collagen fibrils revealed substantial fluctuations at characteristic length scales below 500 nm, which indicates the structural heterogeneity of collagen fibrils at the length scale of single collagen molecules.

Indexed as

3-dimensional single molecule localization microscopyatomic force microscopycollagen fibrilsdefocused imagingdSTORMmultimodal imagingrefractive index

Identifiers

PMID41451849
PMCPMC12822553

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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.