Raman spectroscopy of the photosensitive pigment Prussian blue

Moretti, Giulia; Gervais, Claire

doi:10.1002/jrs.5366

Cited by 134 publications

(73 citation statements)

References 23 publications

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“…Finally, the blue trace signifies the Ti 3 C 2 T x /PB composite. Typical signatures of Ti 3 C 2 T x are observed at 204, 376, and 578 cm −1 , and signatures of PB at around 272, 2,092, and 2,155 cm −1 , which further confirmed the successful synthesis of Ti 3 C 2 T x /PB composites . As indicated from the AFM measurements (Figure S8, Supporting Information), the Ti 3 C 2 T x nanosheet has a uniform thickness of 1.8 nm, which includes trapped water molecules between the flake and the substrate .…”

Section: Resultssupporting

confidence: 63%

A MXene‐Based Wearable Biosensor System for High‐Performance In Vitro Perspiration Analysis

Lei

Zhao

Zhang

et al. 2019

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Wearable electrochemical biosensors for sweat analysis present a promising means for noninvasive biomarker monitoring. However, sweat‐based sensing still poses several challenges, including easy degradation of enzymes and biomaterials with repeated testing, limited detection range and sensitivity of enzyme‐based biosensors caused by oxygen deficiency in sweat, and poor shelf life of sensors using all‐in‐one working electrodes patterned by traditional techniques (e.g., electrodeposition and screen printing). Herein, a stretchable, wearable, and modular multifunctional biosensor is developed, incorporating a novel MXene/Prussian blue (Ti3C2Tx/PB) composite designed for durable and sensitive detection of biomarkers (e.g., glucose and lactate) in sweat. A unique modular design enables a simple exchange of the specific sensing electrode to target the desired analytes. Furthermore, an implemented solid–liquid–air three‐phase interface design leads to superior sensor performance and stability. Typical electrochemical sensitivities of 35.3 µA mm−1 cm−2 for glucose and 11.4 µA mm−1 cm−2 for lactate are achieved using artificial sweat. During in vitro perspiration monitoring of human subjects, the physiochemistry signals (glucose and lactate level) can be measured simultaneously with high sensitivity and good repeatability. This approach represents an important step toward the realization of ultrasensitive enzymatic wearable biosensors for personalized health monitoring.

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Section: Resultssupporting

confidence: 63%

A MXene‐Based Wearable Biosensor System for High‐Performance In Vitro Perspiration Analysis

Lei

Zhao

Zhang

et al. 2019

Small

321

218

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“…Bands located in the spectral window between 450-620 cm -1 are characteristic of all Fe-C stretching vibrations [24] and manifest in the spectrum at 523 cm -1 . The lower spectral region (190-340 cm -1 ) with bands at 277 cm -1 and 328 cm -1 concern the Fe-CN-Fe bond deformation vibrations [24].…”

Section: Blue Colormentioning

confidence: 99%

“…The µ-Raman spectrum allowed the clear identification of the Prussian blue pigment, Figure 4B, displaying the characteristic stretching vibrations of the triple CN bond at 2070-2200 cm −1 [24], which is visible in the spectrum at 2152 cm −1 and 2090 cm −1 . Bands located in the spectral window between 450-620 cm −1 are characteristic of all Fe-C stretching vibrations [24] and manifest in the spectrum at 523 cm −1 . The lower spectral region (190-340 cm −1 ) with bands at 277 cm −1 and 328 cm −1 concern the Fe-CN-Fe bond deformation vibrations [24].…”

Section: Blue Colormentioning

confidence: 99%

Magic Lantern Glass Slides Materials and Techniques: The First Multi-Analytical Study

et al. 2019

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This paper presents the first systematic investigation of hand-painted magic lantern glass slides using multi-analytical techniques combined with a critical analysis of historical written sources of the painting materials and techniques used to produce them. The magic lantern was an optical instrument used from the seventeenth to the twentieth century that attained great success and impact on the entertainment industry, science, religion, and advertisement industry. The glass, colorants, and organic media of five magic lantern slides from the Museum of Natural History and Science of the University of Lisbon were studied. By means of energy-dispersive X-ray fluorescence spectrometry, the glass was characterized and the oxide quantification unveiled that the glass substrate was possibly produced between 1870 and 1930. Ultraviolet-Visible, Raman and Fourier transform infrared spectroscopies allowed the characterization of the colorants: Prussian blue, an anthraquinone red lake pigment of animal origin (such as cochineal), an unidentified organic yellow, and carbon black. The remaining colors were achieved through mixtures of the pure pigments. Infrared analysis detected a complex fingerprint in all colors, nevertheless, a terpenoid resin such as shellac was identified. Metal carboxylates were also detected, contributing to the assessment of the state of conservation of the paints.Heritage 2019, 2 2514 the subjects represented, which then included sequences of popular fiction, topographical themes, historical episodes, news items, educational and pedagogical subjects, as well as ludic scenes, generally combined with movement mechanisms [4,5]. During the transition to the twentieth-century, mainly lithographic and photographic slides were produced, especially for entertainment, pedagogical, and advertisement purposes [3,6].Research on magic lanterns and historical glass slides has been predominately centered on their role as a precursor to film and cinema. This research provides valuable information on the social, cultural, and economic relationships in the specific context of entertainment and the performing arts and has contributed to an understanding of the history and technical evolution of the apparatus and production processes [7]. Recently, there has been increased awareness that the magic lantern should be perceived as a medium and a cultural phenomenon representing a distinct screen practice [8]. The socio-political contexts in which magic lanterns were used has been a topic of historical media investigations [9]. Initiatives to develop appropriate systems for cataloguing and accessing this information are currently underway (e.g., in the European "A Million Pictures" project). However, despite this interest, no systematic information is currently available on the materials and techniques used in the production of magic lantern glass slides.To the extent of the authors' knowledge, there are only two papers concerning the characterization of magic lantern slides materials [10,11]. One of them studied the prese...

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“…Moretti and Gervais studied the photosensitive pigment Prussian blue using Raman spectroscopy. They systematically explored the influence of the laser wavelength and laser power on different types of Prussian blue pigments, soluble and insolulble, and found that use of different laser wavelengths does not influence the positions of the characteristic peaks, though it affects the signal‐to‐noise ratio . Pagliai and co‐workers carried out DFT calculations of the IR and Raman spectra of anthraquinone dyes and lakes.…”

Section: Art and Archaeologymentioning

confidence: 99%

“…They systematically explored the influence of the laser wavelength and laser power on different types of Prussian blue pigments, soluble and insolulble, and found that use of different laser wavelengths does not influence the positions of the characteristic peaks, though it affects the signal-to-noise ratio. [135] Pagliai and coworkers carried out DFT calculations of the IR and Raman spectra of anthraquinone dyes and lakes. The computed vibrational frequencies have been adopted as a guideline to propose the vibrational assignment of the dyes and to obtain useful information on the Raman spectra of their aluminium complexes.…”

Section: Time-resolved and Ultrafast Raman Spectroscopymentioning

confidence: 99%

Recent advances in linear and nonlinear Raman spectroscopy. Part XIII

Nafie

2019

J Raman Spectroscopy

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This article is an overview of advances in Raman spectroscopy published in 2018 in the Journal of Raman Spectroscopy (JRS) and, in addition, trends over the past decade across journals that have published papers important to the field of Raman spectroscopy. The trends are based on statistical data of article counts obtained from Clarivate Analytic's Web of Science Core Collection byyear and by subfield of Raman spectroscopy. Coverage is provided for presentations involving Raman spectroscopy at four international conferences this published in JRS in 2018 are highlighted and arragned by topics at the frontier of Raman spectroscopy. Based on these data, presentations, and publications, it is clear that Raman spectroscopy continues as an expanding field of research across a wide range of novel disciplines and applications that provide sensitive photonic information at the molecular level.KEYWORDS advances in Raman spectroscopy, applications of Raman spectroscopy, developments in Raman spectroscopy, review

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Raman spectroscopy of the photosensitive pigment Prussian blue

Cited by 134 publications

References 23 publications

A MXene‐Based Wearable Biosensor System for High‐Performance In Vitro Perspiration Analysis

A MXene‐Based Wearable Biosensor System for High‐Performance In Vitro Perspiration Analysis

Magic Lantern Glass Slides Materials and Techniques: The First Multi-Analytical Study

Recent advances in linear and nonlinear Raman spectroscopy. Part XIII

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