1
|
Spadea A, Denbigh J, Lawrence MJ, Kansiz M, Gardner P. Analysis of Fixed and Live Single Cells Using Optical Photothermal Infrared with Concomitant Raman Spectroscopy. Anal Chem 2021; 93:3938-3950. [PMID: 33595297 PMCID: PMC8018697 DOI: 10.1021/acs.analchem.0c04846] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/26/2021] [Indexed: 12/24/2022]
Abstract
This paper reports the first use of a novel completely optically based photothermal method (O-PTIR) for obtaining infrared spectra of both fixed and living cells using a quantum cascade laser (QCL) and optical parametric oscillator (OPO) laser as excitation sources, thus enabling all biologically relevant vibrations to be analyzed at submicron spatial resolution. In addition, infrared data acquisition is combined with concomitant Raman spectra from exactly the same excitation location, meaning the full vibrational profile of the cell can be obtained. The pancreatic cancer cell line MIA PaCa-2 and the breast cancer cell line MDA-MB-231 are used as model cells to demonstrate the capabilities of the new instrumentation. These combined modalities can be used to analyze subcellular structures in both fixed and, more importantly, live cells under aqueous conditions. We show that the protein secondary structure and lipid-rich bodies can be identified on the submicron scale.
Collapse
Affiliation(s)
- Alice Spadea
- NorthWest
Centre for Advanced Drug Delivery (NoWCADD), School of Health Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
- Division
of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre Oxford
Road, Manchester M13 9PL, U.K.
| | - Joanna Denbigh
- Seda
Pharmaceutical Development Services, Alderley Park, Alderley
Edge, Cheshire SK10 4TG, U.K.
- School
of Science, Engineering and Environment, University of Salford, Salford, M5 4WT, U.K.
| | - M. Jayne Lawrence
- NorthWest
Centre for Advanced Drug Delivery (NoWCADD), School of Health Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
- Division
of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre Oxford
Road, Manchester M13 9PL, U.K.
| | - Mustafa Kansiz
- Photothermal
Spectroscopy Corp. 325
Chapala Street, Santa Barbara, California 93101, United States
| | - Peter Gardner
- Manchester
Institute of Biotechnology, University of
Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
- Department
of Chemical Engineering and Analytical Science, School of Engineering, University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
| |
Collapse
|
2
|
An Innovative Platform Merging Elemental Analysis and Ftir Imaging for Breast Tissue Analysis. Sci Rep 2019; 9:9854. [PMID: 31285452 PMCID: PMC6614471 DOI: 10.1038/s41598-019-46056-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 06/17/2019] [Indexed: 12/16/2022] Open
Abstract
Histopathology and immunohistology remain the gold standard for breast cancer diagnostic. Yet, these approaches do not usually provide a sufficiently detailed characterization of the pathology. The purpose of this work is to demonstrate for the first time that elemental analysis and Fourier transform infrared spectroscopy microscopic examination of breast tissue sections can be merged into one dataset to provide a single set of markers based on both organic molecules and inorganic trace elements. For illustrating the method, 6 mammary tissue sections were used. Fourier transform infrared (FTIR) spectroscopy images reported a fingerprint of the organic molecules present in the tissue section and laser ablation elemental analysis (LA-ICP-MS) images brought inorganic element profiles. The 6 tissue sections provided 31 106 and 150,000 spectra for FTIR and LA-ICP-MS spectra respectively. The results bring the proof of concept that breast tissue can be analyzed simultaneously by FTIR spectroscopy and laser ablation elemental analysis (LA-ICP-MS) to provide in both case reasonably high resolution images. We show how to bring the images obtained by the two methods to a same spatial resolution and how to use image registration to analyze the data originating from both techniques as one block of data. We finally demonstrates the elemental analysis is orthogonal to all FTIR markers as no significant correlation is found between FTIR and LA-ICP-MS data. Combining FTIR and LA-ICP-MS imaging becomes possible, providing two orthogonal methods which can bring an unprecedented diversity of information on the tissue. This opens a new avenue of tissue section analyses providing unprecedented diagnostic potential.
Collapse
|
3
|
Pahlow S, Weber K, Popp J, Wood BR, Kochan K, Rüther A, Perez-Guaita D, Heraud P, Stone N, Dudgeon A, Gardner B, Reddy R, Mayerich D, Bhargava R. Application of Vibrational Spectroscopy and Imaging to Point-of-Care Medicine: A Review. APPLIED SPECTROSCOPY 2018; 72:52-84. [PMID: 30265133 PMCID: PMC6524782 DOI: 10.1177/0003702818791939] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Affiliation(s)
- Susanne Pahlow
- Friedrich Schiller University Jena, Institute of Physical Chemistry and Abbe Center of Photonics, Jena, Germany
- InfectoGnostics Research Campus Jena, Centre for Applied Research, Jena, Germany
| | - Karina Weber
- Friedrich Schiller University Jena, Institute of Physical Chemistry and Abbe Center of Photonics, Jena, Germany
- InfectoGnostics Research Campus Jena, Centre for Applied Research, Jena, Germany
- Leibniz Institute of Photonic Technology-Leibniz Health Technologies, Jena, Germany
| | - Jürgen Popp
- Friedrich Schiller University Jena, Institute of Physical Chemistry and Abbe Center of Photonics, Jena, Germany
- InfectoGnostics Research Campus Jena, Centre for Applied Research, Jena, Germany
- Leibniz Institute of Photonic Technology-Leibniz Health Technologies, Jena, Germany
| | - Bayden R. Wood
- Centre for Biospectroscopy, School of Chemistry, Monash University, Clayton, Victoria, Australia
| | - Kamila Kochan
- Centre for Biospectroscopy, School of Chemistry, Monash University, Clayton, Victoria, Australia
| | - Anja Rüther
- Centre for Biospectroscopy, School of Chemistry, Monash University, Clayton, Victoria, Australia
| | - David Perez-Guaita
- Centre for Biospectroscopy, School of Chemistry, Monash University, Clayton, Victoria, Australia
| | - Philip Heraud
- Centre for Biospectroscopy, School of Chemistry, Monash University, Clayton, Victoria, Australia
| | - Nick Stone
- University of Exeter, School of Physics and Astronomy, Exeter, UK
| | - Alex Dudgeon
- University of Exeter, School of Physics and Astronomy, Exeter, UK
| | - Ben Gardner
- University of Exeter, School of Physics and Astronomy, Exeter, UK
| | - Rohith Reddy
- Department of Electrical Engineering, University of Houston, Houston, USA
| | - David Mayerich
- Department of Electrical Engineering, University of Houston, Houston, USA
| | - Rohit Bhargava
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana Champaign, Departments of Mechanical Engineering, Bioengineering, Chemical and Biomolecular Engineering, Electrical and Computer Engineering, and Chemistry, University of Illinois at Urbana-Champaign, Urbana, USA
| |
Collapse
|
4
|
De Meutter J, Vandenameele J, Matagne A, Goormaghtigh E. Infrared imaging of high density protein arrays. Analyst 2017; 142:1371-1380. [DOI: 10.1039/c6an02048h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We propose in this paper that protein microarrays could be analysed by infrared imaging in place of enzymatic or fluorescence labelling.
Collapse
Affiliation(s)
- Joëlle De Meutter
- Center for Structural Biology and Bioinformatics
- Laboratory for the Structure and Function of Biological Membranes
- Campus Plaine CP206/02
- Université Libre de Bruxelles CP206/2
- B1050 Brussels
| | - Julie Vandenameele
- Laboratory of Enzymology and Protein Folding
- Centre for Protein Engineering
- University of Liège
- 4000 Liège
- Belgium
| | - André Matagne
- Laboratory of Enzymology and Protein Folding
- Centre for Protein Engineering
- University of Liège
- 4000 Liège
- Belgium
| | - Erik Goormaghtigh
- Center for Structural Biology and Bioinformatics
- Laboratory for the Structure and Function of Biological Membranes
- Campus Plaine CP206/02
- Université Libre de Bruxelles CP206/2
- B1050 Brussels
| |
Collapse
|
5
|
Shen HH, Liu GS, Chow SH, Wang JH, He Z, Nguyen C, Lin TW, Bui BV. Intraocular Pressure Induced Retinal Changes Identified Using Synchrotron Infrared Microscopy. PLoS One 2016; 11:e0164035. [PMID: 27711151 PMCID: PMC5053542 DOI: 10.1371/journal.pone.0164035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 09/19/2016] [Indexed: 11/18/2022] Open
Abstract
Infrared (IR) spectroscopy has been used to quantify chemical and structural characteristics of a wide range of materials including biological tissues. In this study, we examined spatial changes in the chemical characteristics of rat retina in response to intraocular pressure (IOP) elevation using synchrotron infrared microscopy (SIRM), a non-destructive imaging approach. IOP elevation was induced by placing a suture around the eye of anaesthetised rats. Retinal sections were collected onto transparent CaF2 slides 10 days following IOP elevation. Using combined SIRM spectra and chemical mapping approaches it was possible to quantify IOP induced changes in protein conformation and chemical distribution in various layers of the rat retina. We showed that 10 days following IOP elevation there was an increase in lipid and protein levels in the inner nuclear layer (INL) and ganglion cell layer (GCL). IOP elevation also resulted in an increase in nucleic acids in the INL. Analysis of SIRM spectra revealed a shift in amide peaks to lower vibrational frequencies with a more prominent second shoulder, which is consistent with the presence of cell death in specific layers of the retina. These changes were more substantial in the INL and GCL layers compared with those occurring in the outer nuclear layer. These outcomes demonstrate the utility of SIRM to quantify the effect of IOP elevation on specific layers of the retina. Thus SIRM may be a useful tool for the study of localised tissue changes in glaucoma and other eye diseases.
Collapse
Affiliation(s)
- Hsin-Hui Shen
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, Victoria, Australia
- Infection and Immunity Program, Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
- * E-mail: (HHS); (BVB)
| | - Guei-Sheung Liu
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, East Melbourne, Victoria, Australia
| | - Seong Hoong Chow
- Infection and Immunity Program, Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Jiang-Hui Wang
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, East Melbourne, Victoria, Australia
| | - Zheng He
- Department of Optometry & Vision Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - Christine Nguyen
- Department of Optometry & Vision Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - Tsung-Wu Lin
- Department of Chemistry, Tunghai University, Taichung City, Taiwan
| | - Bang V. Bui
- Department of Optometry & Vision Sciences, University of Melbourne, Parkville, Victoria, Australia
- * E-mail: (HHS); (BVB)
| |
Collapse
|
6
|
Dallongeville S, Garnier N, Rolando C, Tokarski C. Proteins in Art, Archaeology, and Paleontology: From Detection to Identification. Chem Rev 2015; 116:2-79. [PMID: 26709533 DOI: 10.1021/acs.chemrev.5b00037] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sophie Dallongeville
- Miniaturisation pour la Synthèse, l'Analyse & la Protéomique (MSAP), USR CNRS 3290, Université de Lille 1 Sciences et Technologies , 59655 Villeneuve d'Ascq Cedex, France
| | - Nicolas Garnier
- SARL Laboratoire Nicolas Garnier , 63270 Vic le Comte, France
| | - Christian Rolando
- Miniaturisation pour la Synthèse, l'Analyse & la Protéomique (MSAP), USR CNRS 3290, Université de Lille 1 Sciences et Technologies , 59655 Villeneuve d'Ascq Cedex, France
| | - Caroline Tokarski
- Miniaturisation pour la Synthèse, l'Analyse & la Protéomique (MSAP), USR CNRS 3290, Université de Lille 1 Sciences et Technologies , 59655 Villeneuve d'Ascq Cedex, France
| |
Collapse
|
7
|
Wood BR, Bambery KR, Dixon MWA, Tilley L, Nasse MJ, Mattson E, Hirschmugl CJ. Diagnosing malaria infected cells at the single cell level using focal plane array Fourier transform infrared imaging spectroscopy. Analyst 2015; 139:4769-74. [PMID: 25055796 DOI: 10.1039/c4an00989d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New methods are needed to rapidly identify malaria parasites in blood smears. The coupling of a Focal Plane Array (FPA) infrared microscope system to a synchrotron light source at IRENI enables rapid molecular imaging at high spatial resolution. The technique, in combination with hyper-spectral processing, enables imaging and diagnosis of early stage malaria parasites at the single cell level in a blood smear. The method relies on the detection of distinct lipid signatures associated with the different stages of the malaria parasite and utilises resonant Mie extended multiplicative scatter correction to pre-process the spectra followed by full bandwidth image deconvolution to resolve the single cells. This work demonstrates the potential of focal plane technology to diagnose single cells in a blood smear. Brighter laboratory based infrared sources, optical refinements and higher sensitive detectors will soon see the emergence of focal plane array imaging in the clinical environment.
Collapse
Affiliation(s)
- Bayden R Wood
- Centre for Biospectroscopy, School of Chemistry, Monash University, VIC 3800, Australia.
| | | | | | | | | | | | | |
Collapse
|
8
|
FTIR spectral signature of anticancer drugs. Can drug mode of action be identified? BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2015; 1864:85-101. [PMID: 26327318 DOI: 10.1016/j.bbapap.2015.08.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 08/18/2015] [Accepted: 08/25/2015] [Indexed: 12/26/2022]
Abstract
Infrared spectroscopy has brought invaluable information about proteins and about the mechanism of action of enzymes. These achievements are difficult to transpose to living organisms as all biological molecules absorb in the mid infrared, with usually a high degree of overlap. Deciphering the contribution of each enzyme is therefore almost impossible. On the other hand, small changes in the infrared spectra of cells induced by environmental conditions or drugs may provide an accurate signature of the metabolic shift experienced by the cell as a response to a change in the growth medium. The present paper aims at reviewing the contribution of infrared spectroscopy to the description of small chemical changes that occur in cells when they are exposed to a drug. In particular, this review will focus on cancer cells and anti-cancer drugs. Results accumulated so far tend to demonstrate that infrared spectroscopy could be a very accurate descriptor of the mode of action of anticancer drugs. If confirmed, such a segmentation of potential drugs according to their "mode of action" will be invaluable for the discovery of new therapeutic molecules. This article is part of a Special Issue entitled: Physiological Enzymology and Protein Functions.
Collapse
|
9
|
Aboualizadeh E, Mattson EC, O'Hara CL, Smith AK, Stucky CL, Hirschmugl CJ. Cold shock induces apoptosis of dorsal root ganglion neurons plated on infrared windows. Analyst 2015; 140:4046-56. [PMID: 26000346 PMCID: PMC4536072 DOI: 10.1039/c5an00729a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The chemical status of live sensory neurons is accessible with infrared microspectroscopy of appropriately prepared cells. In this paper, individual dorsal root ganglion (DRG) neurons have been prepared with two different protocols, and plated on glass cover slips, BaF2 and CaF2 substrates. The first protocol exposes the intact DRGs to 4 °C for between 20-30 minutes before dissociating individual neurons and plating 2 hours later. The second protocol maintains the neurons at 23 °C for the entire duration of the sample preparation. The visual appearance of the neurons is similar. The viability was assessed by means of trypan blue exclusion method to determine the viability of the neurons. The neurons prepared under the first protocol (cold exposure) and plated on BaF2 reveal a distinct chemical signature and chemical distribution that is different from the other sample preparations described in the paper. Importantly, results for other sample preparation methods, using various substrates and temperature protocols, when compared across the overlapping spectral bandwidth, present normal chemical distribution within the neurons. The unusual chemically specific spatial variation is dominated by a lack of protein and carbohydrates in the center of the neurons and signatures of unraveling DNA are detected. We suggest that cold shock leads to apoptosis of DRGs, followed by osmotic stress originating from ion gradients across the cell membrane leading to cell lysis.
Collapse
Affiliation(s)
- Ebrahim Aboualizadeh
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI, 53211 USA.
| | | | | | | | | | | |
Collapse
|
10
|
Wald N, Legat A, Meyer C, Speiser DE, Goormaghtigh E. An infrared spectral signature of human lymphocyte subpopulations from peripheral blood. Analyst 2015; 140:2257-65. [PMID: 25553786 DOI: 10.1039/c4an02247e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metastatic melanomas are frequently refractory to most adjuvant therapies such as chemotherapies and radiotherapies. Recently, immunotherapies have shown good results in the treatment of some metastatic melanomas. Immune cell infiltration in the tumor has been associated with successful immunotherapy. More generally, tumor infiltrating lymphocytes (TILs) in the primary tumor and in metastases of melanoma patients have been demonstrated to correlate positively with favorable clinical outcomes. Altogether, these findings suggest the importance of being able to identify, quantify and characterize immune infiltration at the tumor site for a better diagnostic and treatment choice. In this paper, we used Fourier Transform Infrared (FTIR) imaging to identify and quantify different subpopulations of T cells: the cytotoxic T cells (CD8+), the helper T cells (CD4+) and the regulatory T cells (T reg). As a proof of concept, we investigated pure populations isolated from human peripheral blood from 6 healthy donors. These subpopulations were isolated from blood samples by magnetic labeling and purities were assessed by Fluorescence Activated Cell Sorting (FACS). The results presented here show that Fourier Transform Infrared (FTIR) imaging followed by supervised Partial Least Square Discriminant Analysis (PLS-DA) allows an accurate identification of CD4+ T cells and CD8+ T cells (>86%). We then developed a PLS regression allowing the quantification of T reg in a different mix of immune cells (e.g. Peripheral Blood Mononuclear Cells (PBMCs)). Altogether, these results demonstrate the sensitivity of infrared imaging to detect the low biological variability observed in T cell subpopulations.
Collapse
Affiliation(s)
- N Wald
- Center for Structural Biology and Bioinformatics, Laboratory for the Structure and Function of Biological Membranes; Université Libre de Bruxelles, Campus Plaine, Bld du Triomphe 2, CP206/2, B1050 Brussels, Belgium.
| | | | | | | | | |
Collapse
|
11
|
Findlay CR, Wiens R, Rak M, Sedlmair J, Hirschmugl CJ, Morrison J, Mundy CJ, Kansiz M, Gough KM. Rapid biodiagnostic ex vivo imaging at 1 μm pixel resolution with thermal source FTIR FPA. Analyst 2015; 140:2493-503. [DOI: 10.1039/c4an01982b] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel high spatial resolution (1 × 1 μm pixel) FTIR imaging with commercial benchtop instrument yields data comparable to that from synchrotron sources.
Collapse
Affiliation(s)
- C. R. Findlay
- Department of Chemistry
- University of Manitoba
- Winnipeg MB
- Canada R3T2N2
| | - R. Wiens
- Department of Chemistry
- University of Manitoba
- Winnipeg MB
- Canada R3T2N2
| | - M. Rak
- Department of Chemistry
- University of Manitoba
- Winnipeg MB
- Canada R3T2N2
| | - J. Sedlmair
- Physics Department
- University of Wisconsin-Milwaukee
- USA
| | | | - Jason Morrison
- Department of Biosystems Engineering
- University of Manitoba
- Winnipeg MB
- Canada R3T2N2
| | - C. J. Mundy
- Centre for Earth Observation Science
- Department of Environment and Geography
- University of Manitoba
- Winnipeg MB
- Canada
| | - M. Kansiz
- Agilent Technologies Pty Ltd
- Mulgrave
- Australia
| | - K. M. Gough
- Department of Chemistry
- University of Manitoba
- Winnipeg MB
- Canada R3T2N2
| |
Collapse
|
12
|
|
13
|
Smolina M, Goormaghtigh E. Infrared imaging of MDA-MB-231 breast cancer cell line phenotypes in 2D and 3D cultures. Analyst 2015; 140:2336-43. [DOI: 10.1039/c4an01833h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Breast cancer cell lines in 2D (top) and 3D (bottom) culture: H&H, unstained bright field, and IR images.
Collapse
Affiliation(s)
- Margarita Smolina
- Laboratory for the Structure and Function of Biological Membranes
- Center for Structural Biology and Bioinformatics
- Université Libre de Bruxelles (ULB)
- B-1050 Brussels
- Belgium
| | - Erik Goormaghtigh
- Laboratory for the Structure and Function of Biological Membranes
- Center for Structural Biology and Bioinformatics
- Université Libre de Bruxelles (ULB)
- B-1050 Brussels
- Belgium
| |
Collapse
|
14
|
Mignolet A, Goormaghtigh E. High throughput absorbance spectra of cancerous cells: a microscopic investigation of spectral artifacts. Analyst 2015; 140:2393-401. [DOI: 10.1039/c4an01834f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Infrared spectra of cell smears change in shape with cell density.
Collapse
Affiliation(s)
- A. Mignolet
- Laboratory for the Structure and Function of Biological Membranes
- Center for Structural Biology and Bioinformatics
- Université Libre de Bruxelles (ULB)
- B-1050 Brussels
- Belgium
| | - E. Goormaghtigh
- Laboratory for the Structure and Function of Biological Membranes
- Center for Structural Biology and Bioinformatics
- Université Libre de Bruxelles (ULB)
- B-1050 Brussels
- Belgium
| |
Collapse
|
15
|
Abstract
Characterizing and ultimately controlling the heterogeneity underlying biomolecular functions, quantum behavior of complex matter, photonic materials, or catalysis requires large-scale spectroscopic imaging with simultaneous specificity to structure, phase, and chemical composition at nanometer spatial resolution. However, as with any ultrahigh spatial resolution microscopy technique, the associated demand for an increase in both spatial and spectral bandwidth often leads to a decrease in desired sensitivity. We overcome this limitation in infrared vibrational scattering-scanning probe near-field optical microscopy using synchrotron midinfrared radiation. Tip-enhanced localized light-matter interaction is induced by low-noise, broadband, and spatially coherent synchrotron light of high spectral irradiance, and the near-field signal is sensitively detected using heterodyne interferometric amplification. We achieve sub-40-nm spatially resolved, molecular, and phonon vibrational spectroscopic imaging, with rapid spectral acquisition, spanning the full midinfrared (700-5,000 cm(-1)) with few cm(-1) spectral resolution. We demonstrate the performance of synchrotron infrared nanospectroscopy on semiconductor, biomineral, and protein nanostructures, providing vibrational chemical imaging with subzeptomole sensitivity.
Collapse
|
16
|
Mattson EC, Unger M, Clède S, Lambert F, Policar C, Imtiaz A, D'Souza R, Hirschmugl CJ. Toward optimal spatial and spectral quality in widefield infrared spectromicroscopy of IR labelled single cells. Analyst 2014; 138:5610-8. [PMID: 23826609 DOI: 10.1039/c3an00383c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Advancements in widefield infrared spectromicroscopy have recently been demonstrated following the commissioning of IRENI (InfraRed ENvironmental Imaging), a Fourier Transform infrared (FTIR) chemical imaging beamline at the Synchrotron Radiation Center. The present study demonstrates the effects of magnification, spatial oversampling, spectral pre-processing and deconvolution, focusing on the intracellular detection and distribution of an exogenous metal tris-carbonyl derivative 1 in a single MDA-MB-231 breast cancer cell. We demonstrate here that spatial oversampling for synchrotron-based infrared imaging is critical to obtain accurate diffraction-limited images at all wavelengths simultaneously. Resolution criteria and results from raw and deconvoluted images for two Schwarzschild objectives (36×, NA 0.5 and 74×, NA 0.65) are compared to each other and to prior reports for raster-scanned, confocal microscopes. The resolution of the imaging data can be improved by deconvolving the instrumental broadening that is determined with the measured PSFs, which is implemented with GPU programming architecture for fast hyperspectral processing. High definition, rapidly acquired, FTIR chemical images of respective spectral signatures of the cell 1 and shows that 1 is localized next to the phosphate- and Amide-rich regions, in agreement with previous infrared and luminescence studies. The infrared image contrast, localization and definition are improved after applying proven spectral pre-processing (principal component analysis based noise reduction and RMie scattering correction algorithms) to individual pixel spectra in the hyperspectral cube.
Collapse
Affiliation(s)
- Eric C Mattson
- Physics Dept., University of Wisconsin-Milwaukee, Milwaukee, WI, USA.
| | | | | | | | | | | | | | | |
Collapse
|
17
|
McConico MB, Vogt F. Assessing Impacts of Nutrient Competition on the Chemical Composition of Individual Microalgae Species. ANAL LETT 2013. [DOI: 10.1080/00032719.2013.811682] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
18
|
Liao CR, Rak M, Lund J, Unger M, Platt E, Albensi BC, Hirschmugl CJ, Gough KM. Synchrotron FTIR reveals lipid around and within amyloid plaques in transgenic mice and Alzheimer's disease brain. Analyst 2013; 138:3991-7. [PMID: 23586070 DOI: 10.1039/c3an00295k] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
While the basis of neuronal degeneration in Alzheimer's disease (AD) continues to be debated, the amyloid cascade hypothesis remains central. Amyloid plaques are a required pathological marker for post mortem diagnosis, and Aβ peptide is regarded by most as a critical trigger at the very least. We present spectrochemical image analysis of brain tissue sections obtained with the mid-infrared beamline IRENI (InfraRed ENvironmental Imaging, Synchrotron Radiation Center, U Wisconsin-Madison), where the pixel resolution of 0.54 × 0.54 µm(2) permits analysis at sub-cellular dimensions. Spectrochemical images of dense core plaque found in hippocampus and cortex sections of two transgenic mouse models of AD (TgCRND8 and 3×Tg) are compared with plaque images from a 91 year old apoE43 human AD case. Spectral analysis was done in conjunction with histochemical stains of serial sections. A lipid membrane-like spectral signature surrounded and infiltrated the dense core plaques in all cases. Remarkable compositional similarities in early stage plaques suggest similar routes to plaque formation, regardless of genetic predisposition or mammalian origin.
Collapse
Affiliation(s)
- Catherine R Liao
- Department of Chemistry, University of Manitoba, 360 Parker Building,144 Dysart Road, Winnipeg, Manitoba, Canada.
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Opportunities for live cell FT-infrared imaging: macromolecule identification with 2D and 3D localization. Int J Mol Sci 2013; 14:22753-81. [PMID: 24256815 PMCID: PMC3856089 DOI: 10.3390/ijms141122753] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 10/31/2013] [Accepted: 11/01/2013] [Indexed: 12/22/2022] Open
Abstract
Infrared (IR) spectromicroscopy, or chemical imaging, is an evolving technique that is poised to make significant contributions in the fields of biology and medicine. Recent developments in sources, detectors, measurement techniques and speciman holders have now made diffraction-limited Fourier transform infrared (FTIR) imaging of cellular chemistry in living cells a reality. The availability of bright, broadband IR sources and large area, pixelated detectors facilitate live cell imaging, which requires rapid measurements using non-destructive probes. In this work, we review advances in the field of FTIR spectromicroscopy that have contributed to live-cell two and three-dimensional IR imaging, and discuss several key examples that highlight the utility of this technique for studying the structure and chemistry of living cells.
Collapse
|
20
|
Bertani FR, Ferrari L, Mussi V, Botti E, Costanzo A, Selci S. Living matter observations with a novel hyperspectral supercontinuum confocal microscope for VIS to near-IR reflectance spectroscopy. SENSORS 2013; 13:14523-42. [PMID: 24233077 PMCID: PMC3871062 DOI: 10.3390/s131114523] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 10/15/2013] [Accepted: 10/16/2013] [Indexed: 11/16/2022]
Abstract
A broad range hyper-spectroscopic microscope fed by a supercontinuum laser source and equipped with an almost achromatic optical layout is illustrated with detailed explanations of the design, implementation and data. The real novelty of this instrument, a confocal spectroscopic microscope capable of recording high resolution reflectance data in the VIS-IR spectral range from about 500 nm to 2.5 μm wavelengths, is the possibility of acquiring spectral data at every physical point as defined by lateral coordinates, X and Y, as well as at a depth coordinate, Z, as obtained by the confocal optical sectioning advantage. With this apparatus we collect each single scanning point as a whole spectrum by combining two linear spectral detector arrays, one CCD for the visible range, and one InGaAs infrared array, simultaneously available at the sensor output channel of the home made instrument. This microscope has been developed for biomedical analysis of human skin and other similar applications. Results are shown illustrating the technical performances of the instrument and the capability in extracting information about the composition and the structure of different parts or compartments in biological samples as well as in solid statematter. A complete spectroscopic fingerprinting of samples at microscopic level is shown possible by using statistical analysis on raw data or analytical reflectance models based on Abelés matrix transfer methods.
Collapse
Affiliation(s)
- Francesca R. Bertani
- Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100, Rome 00133, Italy; E-Mails: (F.R.B.); (L.F.); (V.M.)
| | - Luisa Ferrari
- Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100, Rome 00133, Italy; E-Mails: (F.R.B.); (L.F.); (V.M.)
| | - Valentina Mussi
- Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100, Rome 00133, Italy; E-Mails: (F.R.B.); (L.F.); (V.M.)
| | - Elisabetta Botti
- Dermatology Department, University of Tor Vergata, Viale Oxford 81, Rome 00133, Italy; E-Mail:
| | - Antonio Costanzo
- Dermatology Unit-NESMOS Department, Sapienza University of Rome, Sant'Andrea Hospital, Via di Grottarossa 1035, Rome 00189, Italy; E-Mail:
| | - Stefano Selci
- Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100, Rome 00133, Italy; E-Mails: (F.R.B.); (L.F.); (V.M.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +39-06-4993-4167 (ext. 4125); Fax: +39-06-4993-4043
| |
Collapse
|
21
|
Mass J, Sedlmair J, Patterson CS, Carson D, Buckley B, Hirschmugl C. SR-FTIR imaging of the altered cadmium sulfide yellow paints in Henri Matisse's Le Bonheur de vivre (1905-6)--examination of visually distinct degradation regions. Analyst 2013; 138:6032-43. [PMID: 23957052 DOI: 10.1039/c3an00892d] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
SR-FTIR imaging has been used to map the mid-IR active photo-degradation phases in two thin sections of cadmium yellow paint removed from Henri Matisse's Le Bonheur de vivre (1905-1906, The Barnes Foundation). These samples represent both the darkened cadmium yellow foliage in the upper left of the work and the lightened cadmium yellow field beneath the central reclining figures. The altered cadmium yellow paints from both regions were found to contain cadmium carbonate (CdCO3), cadmium sulphate (CdSO4), and cadmium oxalate (CdC2O4). Each of these phases was imaged to determine their positions as a function of depth, with the aim of better understanding the role of each phase in the degradation mechanism. This speciation mapping is critical because cadmium oxalate was used in this period as an additive in cadmium yellow light. In addition, cadmium carbonate and cadmium sulphate were synthesis starting materials for cadmium yellow, and so their distribution throughout the paint layer can provide an indication of their roles. It was established that cadmium oxalate is localized at the surface of the paint layer, cadmium carbonate is found deeper in the layer but still enriched at the surface, and cadmium sulphate is distributed throughout the layer. This distribution, along with the chloride content of the paint suggesting a cadmium chloride starting material, is consistent with an alteration mechanism in which the cadmium sulphide is oxidized to sulphate and this is then converted to carbonate and oxalate. The relative solubilities of the three photo-degradation products are also relevant to their locations in the paint film.
Collapse
Affiliation(s)
- Jennifer Mass
- Winterthur Museum, Conservation Department, 5100 Kennett Pike, Winterthur, USA.
| | | | | | | | | | | |
Collapse
|
22
|
Piqueras S, Duponchel L, Offroy M, Jamme F, Tauler R, de Juan A. Chemometric Strategies To Unmix Information and Increase the Spatial Description of Hyperspectral Images: A Single-Cell Case Study. Anal Chem 2013; 85:6303-11. [DOI: 10.1021/ac4005265] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. Piqueras
- Chemometrics Group, Department
of Analytical Chemistry, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
- IDAEA-CSIC, Jordi Girona
18, 08028 Barcelona, Spain
| | - L. Duponchel
- LASIR CNRS UMR 8516, Université Lille 1, Sciences et Technologies, 59655 Villeneuve d’Ascq Cedex,
France
| | - M. Offroy
- LASIR CNRS UMR 8516, Université Lille 1, Sciences et Technologies, 59655 Villeneuve d’Ascq Cedex,
France
| | - F. Jamme
- INRA, UAR 1008, CEPIA, rue de la Géraudière, BP 71627,
F-44316 Nantes, France
- Synchrotron SOLEIL, L’orme des
merisiers, BP 48, Saint Aubin, F-91192 Gif-sur-Yvette,
France
| | - R. Tauler
- IDAEA-CSIC, Jordi Girona
18, 08028 Barcelona, Spain
| | - A. de Juan
- Chemometrics Group, Department
of Analytical Chemistry, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| |
Collapse
|
23
|
Tobin MJ, Puskar L, Hasan J, Webb HK, Hirschmugl CJ, Nasse MJ, Gervinskas G, Juodkazis S, Watson GS, Watson JA, Crawford RJ, Ivanova EP. High-spatial-resolution mapping of superhydrophobic cicada wing surface chemistry using infrared microspectroscopy and infrared imaging at two synchrotron beamlines. JOURNAL OF SYNCHROTRON RADIATION 2013; 20:482-489. [PMID: 23592628 DOI: 10.1107/s0909049513004056] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Accepted: 02/09/2013] [Indexed: 06/02/2023]
Abstract
The wings of some insects, such as cicadae, have been reported to possess a number of interesting and unusual qualities such as superhydrophobicity, anisotropic wetting and antibacterial properties. Here, the chemical composition of the wings of the Clanger cicada (Psaltoda claripennis) were characterized using infrared (IR) microspectroscopy. In addition, the data generated from two separate synchrotron IR facilities, the Australian Synchrotron Infrared Microspectroscopy beamline (AS-IRM) and the Synchrotron Radiation Center (SRC), University of Wisconsin-Madison, IRENI beamline, were analysed and compared. Characteristic peaks in the IR spectra of the wings were assigned primarily to aliphatic hydrocarbon and amide functionalities, which were considered to be an indication of the presence of waxy and proteinaceous components, respectively, in good agreement with the literature. Chemical distribution maps showed that, while the protein component was homogeneously distributed, a significant degree of heterogeneity was observed in the distribution of the waxy component, which may contribute to the self-cleaning and aerodynamic properties of the cicada wing. When comparing the data generated from the two beamlines, it was determined that the SRC IRENI beamline was capable of producing higher-spatial-resolution distribution images in a shorter time than was achievable at the AS-IRM beamline, but that spectral noise levels per pixel were considerably lower on the AS-IRM beamline, resulting in more favourable data where the detection of weak absorbances is required. The data generated by the two complementary synchrotron IR methods on the chemical composition of cicada wings will be immensely useful in understanding their unusual properties with a view to reproducing their characteristics in, for example, industry applications.
Collapse
Affiliation(s)
- Mark J Tobin
- Infrared Microspectroscopy Beamline, Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria, Australia.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Mattson EC, Unger M, Manandhar B, Alavi Z, Hirschmugl CJ. Multi-beam Synchrotron FTIR Chemical Imaging: Impacts of Schwarzschild Objective and Spatial Oversampling on Spatial Resolution. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/425/14/142001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
25
|
Stavitski E, Smith RJ, Bourassa MW, Acerbo AS, Carr GL, Miller LM. Dynamic full-field infrared imaging with multiple synchrotron beams. Anal Chem 2013; 85:3599-605. [PMID: 23458231 DOI: 10.1021/ac3033849] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Microspectroscopic imaging in the infrared (IR) spectral region allows for the examination of spatially resolved chemical composition on the microscale. More than a decade ago, it was demonstrated that diffraction-limited spatial resolution can be achieved when an apertured, single-pixel IR microscope is coupled to the high brightness of a synchrotron light source. Nowadays, many IR microscopes are equipped with multipixel Focal Plane Array (FPA) detectors, which dramatically improve data acquisition times for imaging large areas. Recently, progress been made toward efficiently coupling synchrotron IR beamlines to multipixel detectors, but they utilize expensive and highly customized optical schemes. Here we demonstrate the development and application of a simple optical configuration that can be implemented on most existing synchrotron IR beamlines to achieve full-field IR imaging with diffraction-limited spatial resolution. Specifically, the synchrotron radiation fan is extracted from the bending magnet and split into four beams that are combined on the sample, allowing it to fill a large section of the FPA. With this optical configuration, we are able to oversample an image by more than a factor of 2, even at the shortest wavelengths, making image restoration through deconvolution algorithms possible. High chemical sensitivity, rapid acquisition times, and superior signal-to-noise characteristics of the instrument are demonstrated. The unique characteristics of this setup enabled the real-time study of heterogeneous chemical dynamics with diffraction-limited spatial resolution for the first time.
Collapse
Affiliation(s)
- Eli Stavitski
- Photon Sciences Directorate, Brookhaven National Laboratory, Upton, New York 11973, United States
| | | | | | | | | | | |
Collapse
|
26
|
Janssens K, Alfeld M, Van der Snickt G, De Nolf W, Vanmeert F, Radepont M, Monico L, Dik J, Cotte M, Falkenberg G, Miliani C, Brunetti BG. The use of synchrotron radiation for the characterization of artists' pigments and paintings. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2013; 6:399-425. [PMID: 23772661 DOI: 10.1146/annurev-anchem-062012-092702] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We review methods and recent studies in which macroscopic to (sub)microscopic X-ray beams were used for nondestructive analysis and characterization of pigments, paint microsamples, and/or entire paintings. We discuss the use of portable laboratory- and synchrotron-based instrumentation and describe several variants of X-ray fluorescence (XRF) analysis used for elemental analysis and imaging and combined with X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS). Macroscopic and microscopic (μ-)XRF variants of this method are suitable for visualizing the elemental distribution of key elements in paint multilayers. Technical innovations such as multielement, large-area XRF detectors have enabled such developments. The use of methods limited to elemental analysis or imaging usually is not sufficient to elucidate the chemical transformations that take place during natural pigment alteration processes. However, synchrotron-based combinations of μ-XRF, μ-XAS, and μ-XRD are suitable for such studies.
Collapse
Affiliation(s)
- Koen Janssens
- Department of Chemistry, University of Antwerp, 2020 Antwerp, Belgium
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|