Victoria Beltran , Andrea Marchetti , Steven de Meyer , Margje Leeuwestein , Christophe Sandt , Ferenc Borondics , Ligia Maria Moretto , Karolien De Wael
{"title":"Degradation of eosin Y complexes during natural ageing: Spectroscopic markers and parameters that affect their stability","authors":"Victoria Beltran , Andrea Marchetti , Steven de Meyer , Margje Leeuwestein , Christophe Sandt , Ferenc Borondics , Ligia Maria Moretto , Karolien De Wael","doi":"10.1016/j.microc.2025.113178","DOIUrl":null,"url":null,"abstract":"<div><div>Eosin Y complexes find applications in several fields, including dye sensitized solar cells, medical therapies or artistic pigments. However, their lack of stability, leading to fading upon light exposure, hinders optimal performance. This study focuses on the natural ageing of aluminum (Eo-Al) and lead (Eo-Pb) eosin Y complexes. The monitoring by Fourier transform infrared (FTIR) and Raman spectroscopy revealed the spectral markers and molecular changes during these processes. These findings have the potential to broaden the applicability of eosin Y complexes, whether used as pigments in an artistic context or in any other field where mid- to long-term stability is crucial.</div></div>","PeriodicalId":391,"journal":{"name":"Microchemical Journal","volume":"212 ","pages":"Article 113178"},"PeriodicalIF":4.9000,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microchemical Journal","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0026265X25005326","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Eosin Y complexes find applications in several fields, including dye sensitized solar cells, medical therapies or artistic pigments. However, their lack of stability, leading to fading upon light exposure, hinders optimal performance. This study focuses on the natural ageing of aluminum (Eo-Al) and lead (Eo-Pb) eosin Y complexes. The monitoring by Fourier transform infrared (FTIR) and Raman spectroscopy revealed the spectral markers and molecular changes during these processes. These findings have the potential to broaden the applicability of eosin Y complexes, whether used as pigments in an artistic context or in any other field where mid- to long-term stability is crucial.
期刊介绍：
The Microchemical Journal is a peer reviewed journal devoted to all aspects and phases of analytical chemistry and chemical analysis. The Microchemical Journal publishes articles which are at the forefront of modern analytical chemistry and cover innovations in the techniques to the finest possible limits. This includes fundamental aspects, instrumentation, new developments, innovative and novel methods and applications including environmental and clinical field.
Traditional classical analytical methods such as spectrophotometry and titrimetry as well as established instrumentation methods such as flame and graphite furnace atomic absorption spectrometry, gas chromatography, and modified glassy or carbon electrode electrochemical methods will be considered, provided they show significant improvements and novelty compared to the established methods.
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