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Zhang B, Zhang Z, Gao B, Zhang F, Tian L, Zeng H, Wang S. Raman microspectroscopy based TNM staging and grading of breast cancer. Spectrochim Acta A Mol Biomol Spectrosc 2023; 285:121937. [PMID: 36201869 DOI: 10.1016/j.saa.2022.121937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
The tumor-node-metastasis (TNM) system is the most common way that doctors determine the anatomical extent of cancer on the basis of clinical and pathological criteria. In this study, a spectral histopathological study has been carried out to bridge Raman micro spectroscopy with the breast cancer TNM system. A total of seventy breast tissue samples, including healthy tissue, early, middle, and advanced cancer, were investigated to provide detailed insights into compositional and structural variations that accompany breast malignant evolution. After evaluating the main spectral variations in all tissue types, the generalized discriminant analysis (GDA) pathological diagnostic model was established to discriminate the TNM staging and grading information. Moreover, micro-Raman images were reconstructed by K-means clustering analysis (KCA) for visualizing the lobular acinar in healthy tissue and ductal structures in all early, middle and advanced breast cancer tissue groups. While, univariate imaging techniques were adapted to describe the distribution differences of biochemical components such as tryptophan, β-carotene, proteins, and lipids in the scanned regions. The achieved spectral histopathological results not only established a spectra-structure correlations via tissue biochemical profiles but also provided important data and discriminative model references for in vivo Raman-based breast cancer diagnosis.
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Affiliation(s)
- Baoping Zhang
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi 710127, China
| | - Zhanqin Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Bingran Gao
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi 710127, China
| | - Furong Zhang
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi 710127, China
| | - Lu Tian
- Department of Physics, Northwest University, Xi'an, Shaanxi 710127, China
| | - Haishan Zeng
- Imaging Unit - Integrative Oncology Department, BC Cancer Research Center, Vancouver, BC V5Z 1L3, Canada
| | - Shuang Wang
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi 710127, China.
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Weber F, Kerpen J, Wolff S, Langer R, Eschweiler V. Investigation of microplastics contamination in drinking water of a German city. Sci Total Environ 2021; 755:143421. [PMID: 33183796 DOI: 10.1016/j.scitotenv.2020.143421] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/23/2020] [Accepted: 10/25/2020] [Indexed: 06/11/2023]
Abstract
The drinking water of a German city was investigated for microplastics. Random samples were taken from three house connections, one transfer station, and five consumption taps in an educational institution, an apartment, a single-family house, a residential building, and a commercial enterprise. The sample volumes ranged from 0.25-1.3 m3. A stainless-steel membrane served as a sampling filter. HCl was used for the acidic digestion of the inorganic precipitates. Raman micro spectroscopy was used for the analysis of microplastic particles. The detection limit was 10 μm. Particles and fibers ≥100 μm were measured on 100% of the filter area, while particles and fibers <100 μm were measured on 50% of the filter area. The analytical procedure was validated by determining recovery rates and analyses of blanks. In addition to microplastics, pigmented particles and fibers were also analyzed. Neither microplastic particles and fibers nor pigmented particles and fibers were detected at house connections and the transfer station. No microplastics were detected in any sample at consumption taps. At one tap, 113 ± 83 copper phthalocyanine particles m-3 were detected.
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Affiliation(s)
- Felix Weber
- Institute for Environmental and Process Engineering, Hochschule RheinMain, University of Applied Sciences, P.O. Box 3251, 65022 Wiesbaden, Germany.
| | - Jutta Kerpen
- Institute for Environmental and Process Engineering, Hochschule RheinMain, University of Applied Sciences, P.O. Box 3251, 65022 Wiesbaden, Germany
| | - Sebastian Wolff
- Institute for Environmental and Process Engineering, Hochschule RheinMain, University of Applied Sciences, P.O. Box 3251, 65022 Wiesbaden, Germany
| | - René Langer
- Institute for Environmental and Process Engineering, Hochschule RheinMain, University of Applied Sciences, P.O. Box 3251, 65022 Wiesbaden, Germany
| | - Vanessa Eschweiler
- Institute for Environmental and Process Engineering, Hochschule RheinMain, University of Applied Sciences, P.O. Box 3251, 65022 Wiesbaden, Germany
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Romero M, Mombrú D, Pignanelli F, Faccio R, Mombrú AW. Mini-Review: Mixed Ionic-Electronic Charge Carrier Localization and Transport in Hybrid Organic-Inorganic Nanomaterials. Front Chem 2020; 8:537. [PMID: 32760697 PMCID: PMC7372086 DOI: 10.3389/fchem.2020.00537] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 05/26/2020] [Indexed: 01/21/2023] Open
Abstract
In this mini-review, a comprehensive discussion on the state of the art of hybrid organic–inorganic mixed ionic–electronic conductors (hOI-MIECs) is given, focusing on conducting polymer nanocomposites comprising inorganic nanoparticles ranging from ceramic-in-polymer to polymer-in-ceramic concentration regimes. First, a brief discussion on fundamental aspects of mixed ionic–electronic transport phenomena considering the charge carrier transport at bulk regions together with the effect of the organic–inorganic interphase of hybrid nanocomposites is presented. We also make a recount of updated instrumentation techniques to characterize structure, microstructure, chemical composition, and mixed ionic–electronic transport with special focus on those relevant for hOI-MIECs. Raman imaging and impedance spectroscopy instrumentation techniques are particularly discussed as relatively simple and versatile tools to study the charge carrier localization and transport at different regions of hOI-MIECs including both bulk and interphase regions to shed some light on the mixed ionic–electronic transport mechanism. In addition, we will also refer to different device assembly configurations and in situ/operando measurements experiments to analyze mixed ionic–electronic conduction phenomena for different specific applications. Finally, we will also review the broad range of promising applications of hOI-MIECs, mainly in the field of energy storage and conversion, but also in the emerging field of electronics and bioelectronics.
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Affiliation(s)
- Mariano Romero
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones - DETEMA, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Dominique Mombrú
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones - DETEMA, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Fernando Pignanelli
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones - DETEMA, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Ricardo Faccio
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones - DETEMA, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Alvaro W Mombrú
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones - DETEMA, Facultad de Química, Universidad de la República, Montevideo, Uruguay
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Farhane Z, Bonnier F, Maher MA, Bryant J, Casey A, Byrne HJ. Differentiating responses of lung cancer cell lines to Doxorubicin exposure: in vitro Raman micro spectroscopy, oxidative stress and bcl-2 protein expression. J Biophotonics 2017; 10:151-165. [PMID: 27088439 DOI: 10.1002/jbio.201600019] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 02/23/2016] [Accepted: 03/14/2016] [Indexed: 06/05/2023]
Abstract
The potential of Raman micro spectroscopy as an in vitro, non-invasive tool for clinical applications has been demonstrated in recent years, specifically for cancer research. To further illustrate its potential as a high content and label free technique, it is important to show its capability to elucidate drug mechanisms of action and cellular resistances. In this study, cytotoxicity assays were employed to establish the toxicity profiles for 24 hr exposure of lung cancer cell lines, A549 and Calu-1, to the commercially available drug, doxorubicin (DOX). Raman spectroscopy, coupled with Confocal Laser Scanning Microscopy and Flow Cytometry, was used to track the DOX mechanism of action, at a subcellular level, and to study the mechanisms of cellular resistance to DOX. Biomarkers related to the drug mechanism of action and cellular resistance to apoptosis, namely reactive oxygen species (ROS) and bcl-2 protein expression, respectively, were also measured and correlated to Raman spectral profiles. Calu-1 cells are shown to exhibit spectroscopic signatures of both direct DNA damage due to intercalation in the nucleus and indirect damage due to oxidative stress in the cytoplasm, whereas the A549 cell line only exhibits signatures of the former mechanism of action. PCA of nucleolar, nuclear and cytoplasmic regions of A549 and Calu-1 with corresponding loadings of PC1 and PC2.
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Affiliation(s)
- Zeineb Farhane
- FOCAS Research Institute, Dublin Institute of Technology, Kevin Street, Dublin, 8, Ireland
- School of Physics, Dublin Institute of Technology, Kevin Street, Dublin, 8, Ireland
| | - Franck Bonnier
- Université François-Rabelais de Tours, Faculty of Pharmacy, EA 6295 Nanomédicaments et Nanosondes, 31 avenue Monge, 37200, Tours, France
| | - Marcus Alexander Maher
- FOCAS Research Institute, Dublin Institute of Technology, Kevin Street, Dublin, 8, Ireland
- School of Physics, Dublin Institute of Technology, Kevin Street, Dublin, 8, Ireland
| | - Jane Bryant
- FOCAS Research Institute, Dublin Institute of Technology, Kevin Street, Dublin, 8, Ireland
| | - Alan Casey
- FOCAS Research Institute, Dublin Institute of Technology, Kevin Street, Dublin, 8, Ireland
| | - Hugh James Byrne
- FOCAS Research Institute, Dublin Institute of Technology, Kevin Street, Dublin, 8, Ireland
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Steinke M, Gross R, Walles H, Gangnus R, Schütze K, Walles T. An engineered 3D human airway mucosa model based on an SIS scaffold. Biomaterials 2014; 35:7355-62. [PMID: 24912816 DOI: 10.1016/j.biomaterials.2014.05.031] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 05/08/2014] [Indexed: 11/21/2022]
Abstract
To investigate interrelations of human obligate airway pathogens, such as Bordetella pertussis, and their hosts test systems with high in vitro/in vivo correlation are of urgent need. Using a tissue engineering approach, we generated a 3D test system of the airway mucosa with human tracheobronchial epithelial cells (hTEC) and fibroblasts seeded on a clinically implemented biological scaffold. To investigate if hTEC display tumour-specific characteristics we analysed Raman spectra of hTEC and the adenocarcinoma cell line Calu-3. To establish optimal conditions for infection studies, we treated human native airway mucosa segments with B. pertussis. Samples were processed for morphologic analysis. Whereas our test system consisting of differentiated epithelial cells and migrating fibroblasts shows high in vitro/in vivo correlation, hTEC seeded on the scaffold as monocultures did not resemble the in vivo situation. Differences in Raman spectra of hTEC and Calu-3 were identified in distinct wave number ranges between 720 and 1662 cm(-1) indicating that hTEC do not display tumour-specific characteristics. Infection of native tissue with B. pertussis led to cytoplasmic vacuoles, damaged mitochondria and destroyed epithelial cells. Our test system is suitable for infection studies with human obligate airway pathogens by mimicking the physiological microenvironment of the human airway mucosa.
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