Evidence map›Paper›PMID 33232351›Full record

ArticlePloS one2020

On the production of ancient Egyptian blue: Multi-modal characterization and micron-scale luminescence mapping.

Linda M Seymour, Marco Nicola, Max I Kessler, Claire L Yost, Alessandro Bazzacco, Alessandro Marello, Enrico Ferraris, Roberto Gobetto, Admir Masic

Open access · goldAbstract readHistorical Article
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
10.8field-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

2 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. 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

9 authors at 3 institutions in 2 countries.

Linda M SeymourDepartment of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States of America.
Marco NicolaDipartimento di Chimica, Università degli Studi di Torino, Torino, Italy.
Max I KesslerDepartment of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States of America.ORCID 0000-0003-1001-6375
Claire L YostDepartment of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States of America.
Alessandro BazzaccoMultispectral Imaging Freelance; Adjunct Professor in Multispectral Analysis, SUSCOR, Università degli Studi di Torino, Venaria Reale (TO), Italy.
Alessandro MarelloAdamantio S.r.l, Torino, Italy.
Enrico FerrarisMuseo Egizio, Torino (TO), Italy.
Roberto GobettoDipartimento di Chimica, Università degli Studi di Torino, Torino, Italy.
Admir MasicDepartment of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States of America.ORCID 0000-0002-8791-175X
Massachusetts Institute of Technology · USUniversity of Turin · ITMuseo Egizio · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ancient pigment Egyptian blue has long been studied for its historical significance; however, recent work has shown that its unique visible induced luminescent property can be used both to identify the pigment and to inspire new materials with this characteristic. In this study, a multi-modal characterization approach is used to explore variations in ancient production of Egyptian blue from shabti statuettes found in the village of Deir el-Medina in Egypt (Luxor, West Bank) dating back to the New Kingdom (18th-20th Dynasties; about 1550-1077 BCE). Using quantitative SEM-EDS analysis, we identify two possible production groups of the Egyptian blue and demonstrate the presence of multiple phases within samples using cluster analysis and ternary diagram representations. Using both macro-scale non-invasive (X-rays fluorescence and multi-spectral imaging) and micro-sampling (SEM-EDS and Raman confocal microspectroscopy) techniques, we correlate photoluminescence and chemical composition of the ancient samples. We introduce Raman spectroscopic imaging as a means to capture simultaneously visible-induced luminesce and crystal structure and utilize it to identify two classes of luminescing and non-luminescing silicate phases in the pigment that may be connected to production technologies. The results presented here provide a new framework through which Egyptian blue can be studied and inform the design of new materials based on its luminescent property.

Indexed as

Cluster AnalysisColoring AgentsCopperCrystallizationEgypt, AncientHistory, AncientLuminescenceMicroscopy, Electron, ScanningRomeSculptureSilicatesSpectrometry, X-Ray EmissionSpectrum Analysis, RamanColoring AgentsCoppercuprorivaiteSilicates

Identifiers

PMID33232351
PMCPMC7685487
OpenAlexW3109093713

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.