Evidence map›Paper›PMID 42522992›Full record

ArticleJournal of biophotonics2026

Influence of Sample Preparation Methods for Porcine Tissue: Calibration-Free LIBS for In Vivo Applications.

Edith Böhmer, Oana-Maria Thoma, Maximilian J Waldner, Florian Klämpfl, Michael Schmidt, Martin Hohmann

Abstract read
In one paragraph

Article in Journal of biophotonics, 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

6 authors.

Edith BöhmerInstitute of Photonic Technologies (LPT), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.ORCID 0009-0006-1145-7542
Oana-Maria ThomaDepartment of Medicinie 1, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.ORCID 0000-0002-1665-9753
Maximilian J WaldnerDepartment of Medicinie 1, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.
Florian KlämpflInstitute of Photonic Technologies (LPT), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.ORCID 0000-0001-7864-7419
Michael SchmidtInstitute of Photonic Technologies (LPT), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.
Martin HohmannInstitute of Photonic Technologies (LPT), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.ORCID 0000-0001-5099-1015

Funding

Bavarian State Ministry for Science and ArtDFG-Deutsche Forschungsgemeinschaft 502911968
6 · The paper itself

Abstract

Calibration-free laser-induced breakdown spectroscopy (CF-LIBS) has the advantage of eliminating the need for complex sample preparation. This study investigates the impact of various preparation techniques on porcine tissue. These methods include embedding the tissue in PBS or deionised water, and analysing untreated tissue or tissue that has been cut using liquid nitrogen. The results demonstrate that embedding samples does result in changes to the LIBS spectra. Minor deviations in the magnesium and sodium intensity ratios were observed in the skin. However, it should be noted that embedded samples may exhibit altered elemental signatures due to ionic exchange with the immersion medium, despite facilitating sample handling. It is important to note that the immediate measurement of untreated samples is critical, as post-mortem changes can lead to shifts in elemental concentrations. These findings show that CF-LIBS can be reliably performed on untreated biological samples, thus supporting its use in vivo diagnostics.

Indexed as

LasersSpecimen HandlingSpectrum AnalysisAnimalsCalibrationSkinSwinecalibration‐free laser‐induced breakdown spectroscopydeionised waterelemental compositionlaser‐induced breakdown spectroscopynitrogenPBSsample preparation

Identifiers

PMID42522992
PMCPMC13418090

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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.